source: git/NEWS @ 566f5b8

debug-cidebug-ci-sanitisersfaster-cavernloglog-selectstereo-2025walls-datawalls-data-hanging-as-warningwarn-only-for-hanging-survey
Last change on this file since 566f5b8 was 7bc4300, checked in by Olly Betts <olly@…>, 17 months ago

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1up to: 148902bb839bd74e535b5f724deee6a87ecd9cb6
2
3Changes in 1.4.6 (2024-02-??):
4
5* doc/TODO.htm: Update.
6
7* img library:
8
9  + Improve Compass PLT support:
10    [img] Read LRUD data for Compass PLT
11
12    [img] Infer img_SFLAG_ENTRANCE for Compass PLT
13    Compass PLT files don't include station flags, but they do have a
14    "Distance From Entrance" field for each station and it seems reasonable
15    to infer the entrance flag for stations where this is present and zero.
16
17    [img] Read survey dates from Compass PLT files
18    The test coverage for this also serves as a regression test for the
19    recent fix for rounding timestamps before 1970.
20
21  + Improve time_t conversion to days-since-1900
22    C signed integer division rounds towards zero, so previously
23    timestamps before 1970 would get rounded to the end of the day instead
24    of the start, so aside from midnight would end up one day later.
25    Now we offset before division so rounding is consistently to the start
26    of the day.
27    This only affects cases where we need to convert from time_t to
28    days-since-1900, and only for timestamps before 1970.
29
30* aven,survexport: Enable export of surface legs for KML and JSON.
31  Currently surface and underground legs aren't differentiated in
32  these export formats if both are enabled.
33
34    Replace used of obsolete AC_LANG_C macro
35    Remove unused and obsolete AC_TYPE_SIGNAL macro
36    We haven't used the RETSIGTYPE macro this defines since
37    9d1503de894514c0e1285a314b7c5126b0f046be.
38
39* cavern: Fix two grid convergence bugs.
40    One is due to a bug in PROJ < 9.3.0 with projected coordinate systems
41    with northing/easting axis order (such as EPSG:3042) which results in
42    the grid convergence being wrong by 90°.  We now work around this
43    problem if building with an affected PROJ version.  Reported by
44    Patrick Warren on the mailing list.
45    The other is that we weren't checking the output coordinate system
46    was set before calculating the convergence, which resulted in a
47    grid convergence of 0° being used if *declination auto was used
48    before *cs out.  We now handle this case correctly, and the
49    convergence is now calculated lazily which happens when we read a
50    compass reading, and gives an error if the output coordinate system
51    hasn't been set by then.
52
53* manual: Improve NATO mils example.
54
55* INSTALL: Clean up text re -dev packages
56
57* INSTALL: Add a link to the instructions for building from git.  Reported by
58  Andrew Northall in https://github.com/ojwb/survex/pull/13
59
60* aven: Fix OpenGL scaling on high DPI displays with wxWidgets 3.0.
61  Reported by Philip Balister.
62
63* Fix compilation warnings from newer compiler versions.
64
65Changes in 1.4.5 (2023-06-29):
66
67* aven: Fix rendering of crosses when drawn as sprites.  Reported by echarlie.
68
69* (macOS version): aven: Fix crash in export dialog.  Fixes #133, reported by
70  rixyane.  Thanks to Wookey for testing.
71
72* manual: Expand docs on connecting to Compass data.
73
74* Minor translation updates.
75
76Changes in 1.4.4 (2023-02-03):
77
78* aven: Fix red line in clino background to be grey (this was introduced in
79  1.4.3 and was a debugging change accidentally left in).
80
81* aven: Accept weird .3d files from Therion which have empty components in
82  station names.  That's not really valid by Survex's definition of station
83  names, but it's not very helpful to reject such files, so just disable the
84  checks that were rejecting this.
85
86  The result is empty entries in the survey tree, but I don't see what we can
87  really do that's better than that.
88
89  Reported by Vasily Vl. Suhachev.
90
91* aven: Make it more obvious you can enter a custom scale by adding a "..."
92  entry to the scale combobox - selecting this clears the value and gives focus
93  to the combo box text entry. This control has always supported clicking to
94  enter a custom scale, but there wasn't really any indication that this was
95  possible before.  Partly addresses #132, reported by Eric C. Landgraf.
96
97* aven: Force export window to resize when the export format is changed as
98  different controls are shown depending on the export format.
99
100* aven: Right-align tilt spin control value in print/export dialog to match the
101  bearing spin control.
102
103* aven,survexport: Add ability to export as Survex 3d which is useful as you
104  can filter to a subset of surveys, filter out splays, convert from other
105  formats the img library can read, etc.  This feature is a bit rough and ready
106  currently but please report issues.
107
108* dump3d: Add --legs option which converts MOVE and LINE to a single LEG line
109  per leg with the from and to coordinates.  Tools which parse dump3d output
110  should find this easier to process as it avoids having to track a "current
111  position".
112
113* Update manual to have a complete list of quantities which *calibrate accepts.
114  Reported by echarlie
115
116* cavern.tst: Fix testsuite to work with SOURCE_DATE_EPOCH set.
117
118Changes in 1.4.3 (2022-05-17):
119
120* aven: Much improved support for HiDPI monitors on all platforms.
121
122* aven: When started without a file make sure the window has focus so menu
123  accelerators and shortcuts work without clicking on the window.
124
125* aven,survexport: DXF export now puts splays in a separate layer and uses a
126  dotted linetype for them.  Patch from echarlie, see #60.
127
128* Improved survexport man page to include command line options and a short
129  note about DXF export.  Patch from echarlie.
130
131* Minor translation updates.
132
133* (Unix version): aven: Fix handling of EGL-based wxGLCanvas (which wxGTK 3.1.5
134  has).  Fix a build failure and don't force X11 (as the EGL-based wxGLCanvas
135  works on Wayland).
136
137* (MacOS version): aven: Fix hang on startup without a file.  Fixes #120,
138  reported by Enrico Fratnik.
139
140* (Microsoft Windows version): Now using wxWidgets 3.1.6 (was 3.0.5).
141
142* img library: Support reproducible builds which create .3d files by not
143  embedding a timestamp if environment variable SOURCE_DATE_EPOCH is set.
144  Requested by Martin Budaj.
145
146Changes in 1.4.2 (2022-02-25):
147
148* aven: Fix to be compatible with FFmpeg 5.0.
149
150* Improve docs for *cs and *declination.
151
152* cavern: Fix "*declination auto" not to crash when built with PROJ < 8.1.0.
153  Bug introduced in 1.4.0.
154
155* cavern: For each `*declination auto` command cavern now reports an "info"
156  message showing the range of calculated declination values and the dates at
157  which the ends of the range were obtained, and also the grid convergence
158  (which doesn't vary with time).  Fixes #92, reported by Rob Eavis.
159
160* cavern: If any of the N-S, E-W or U-D ranges includes an anonymous station
161  then also report the range in that direction excluding anonymous stations.
162  Patch from Thomas Holder.
163
164* cavern: The error from a bad `*cs custom` command now highlights the quoted
165  string properly.
166
167* cavern: "FIX command with no coordinates - fixing at (0,0,0)" is now an
168  "info" rather than a "warning".  It's not really reporting a problem and the
169  ability to omit the coordinates is a deliberate feature.  It is useful for
170  the user to know where the "*fix" without coordinates is if they want to
171  change the survey to be in real coordinates, so an "info" diagnostic is a
172  good fit.  This also means aven will no longer stay on the log view after
173  processing a dataset which fixes without coordinates.
174
175* cavern: If "*fix" is used twice with no coordinates we no longer say
176  "FIX command with no coordinates - fixing at (0,0,0)" right before:
177
178  error: Already had FIX command with no coordinates for station "x"
179
180* cavern: Include errors in Compass .mak files now report the error in the line
181  where the included filename is actually specified.
182
183* cavern.tst: Add test coverage for warnings for *entrance and *export with
184  a station which doesn't exist otherwise.
185
186* aven/survexport: Change JSON export to be valid JSON.  This means the output
187  has changed incompatibly, but it wasn't valid JSON before which suggests
188  nobody was actually successfully using it. Fixes #128, reported by Pawczak.
189
190* aven.tst: Skip one testcase on macos as it seems to hang, at least when
191  running on the Continuous Integration system.
192
193* (Microsoft Windows version): The installer is now generated with a much
194  newer version of Innosetup.  Most notably, it now supports installing as a
195  non-admin user.  This also means Microsoft Windows Vista is now the minimum
196  supported version but 2000 and XP are both many years out of support anyway.
197
198* (Microsoft Windows version): The coordinate system database for PROJ is
199  now included so "*cs" now works (broken since 1.4.0).
200
201* Chinese translation updates from Qingqing Li.
202
203* Building from source now requires a compiler with support for C99.  C99
204  seems to be universally supported by compilers now so we don't expect this to
205  inconvenience anyone.
206
207Changes in 1.4.1 (2021-11-08):
208
209* This release should work with any PROJ version >= 6.2.0.
210
211* cavern.tst: Fix to actually run tests when building outside the source
212  tree.  Previously files for testcases weren't found, and tests were skipped
213  with a warning, which lead to 1.4.0 being released with two failing testcase.
214  Fix to find the files, and make not finding them an error.
215
216* cavern.tst: Fix testcases gpxexport and require_fail which were failing
217  in 1.4.0.
218
219* 3dformat.htm: Document that coordinate system can be ESRI:<number>.
220
221Changes in 1.4.0 (2021-11-06):
222
223* New release series to mark that Survex now uses the new PROJ API, and
224  requires PROJ >= 7.2.0.  Survex 1.2.x will continue to support PROJ < 8
225  (and won't support newer PROJ versions).  Fixes #102, reported by Bas
226  Couwenberg.
227
228  Due to these changes, PROJ will now convert directly between coordinate
229  systems where it knows how to, instead of always converting via WGS84.
230  This means conversions may now be more accurate in some cases, and you may
231  notice station coordinates changing - these should be for the better.
232
233  Also, the vertical datum is now taken into account automatically, and
234  terrain data now aligns much better vertically with surveys.  Fixes #56.
235
236* aven: Clicking and holding the left mouse button on the compass or clino,
237  then (while still holding) clicking the right button no longer causes a
238  wxWidgets assertion to fail.  Reported by echarlie.
239
240* img library: Rewrite certain proj strings when reading 3d files for
241  better compatibility with newer PROJ versions, where use of proj
242  strings is strongly discouraged.
243
244  `+init=epsg:` followed by a code number is rewritten to `EPSG:`.
245
246  `+init=esri:` followed by a code number is rewritten to `ESRI:`.
247
248  The proj strings which cavern used to put in 3d files for UTM zones and
249  S-MERC are rewritten to `EPSG:` follow by the appropriate code number.
250
251* Also install survex.lang for gtksourceview 4. Fixes #125, reported by Martin
252  Green.
253
254* Fix missing data style in interleaved example in manual.  Reported by
255  echarlie.
256
257* Use jw from docbook-utils instead of sgmltools-lite to process the manual.
258  The sgmltools-lite homepage says it's no longer being developed, and suggests
259  docbook-tools (which Debian packages as docbook-utils) as a replacement.
260
261* doc/HACKING.htm: Update Debian packages to install
262
263* doc/HACKING.htm: Update details of setting up mingw cross-build environment.
264
265* Add simple tests for GPX and KML export.
266
267* Expand cavern testcase csbad.
268
269* cavern.tst: Parse warning/error counts more robustly.  Previously we'd get
270  confused if the final line just contained an integer, e.g. if we end listing
271  stations not attached to a fixed point.
272
273Changes in 1.2.45 (2021-03-09):
274
275* Avoid undefined signed shifts in 3d file handling.  Survex itself is only
276  affected on big-endian platforms (so most Linux machine, Microsoft Windows,
277  and current Macs are all OK), but this also affects the img library on all
278  platforms when used in standalone mode as it is in other programs.  Fixes
279  #119, reported by Matěj Plch.
280
281* aven:
282
283  + When reading cavern output for the log window, we need special handling
284    for the case when a chunk of output ends mid-way through a UTF-8
285    sequence.  Previously we lost the first byte of the sequence in this
286    case (and would then show it as an invalid character), but now it is
287    handled correctly.  In practice, most of the cavern log output is ASCII so
288    it's quite possible nobody's ever actually hit this.
289
290* testsuite:
291
292  + Suppress reports of leaks on exit from the LeakSanitiser debugging tool.
293    We know we don't release all memory explicitly on exit since doing so would
294    mean extra work for no reason as the OS reclaims all memory when the
295    process exits.
296
297* Convert OLDNEWS encoding from ISO-8859-1 to UTF-8.
298
299Changes in 1.2.44 (2021-02-10):
300
301* aven:
302
303  + (Microsoft Windows version): Now using wxWidgets 3.0.5 (was 3.0.4).
304
305* cavern:
306
307  * Add support for quadrant bearings (e.g. N30E).  Patch from echarlie.
308
309  * Report error if angle units are specified for passage dimension.
310    Previously "*units left degrees" and similar were incorrectly quietly
311    accepted.  Spotted by echarlie.
312
313  * Fix *data with no parameters to keep the current style and reset any state
314    as documented.  Previously it actually instead ignored any survey data
315    until the next *data command with parameters.
316
317  * Fix minor memory leak in *data.  We leaked a single memory allocation on
318    "*data default" or an invalid *data command.
319
320  * Improve test coverage.
321
322* survexport:
323
324  * The check for whether a format supported --elevation, --plan, --bearing and
325    --tilt was inverted.  Reported by echarlie.
326
327  * Fix reporting of export errors on Microsoft Windows.  Reported by Matic Di
328    Batista.
329
330* img library: Fix img_open() when used in other programs.  Patch from Thomas
331  Holder.
332
333* configure: Add wx-config-gtk3 to WX_CONFIG search for Arch Linux.  Patch
334  from Thomas Holder.
335
336* Improve documentation of interleaved data.  Most notably, we now document
337  that a blank line breaks the current traverse.
338
339* Fix typo in manual ('cypolar' -> 'cylpolar').  Patch from Wookey, fixes #117.
340
341* Chinese translation updates from Qingqing Li.
342
343* Russian translation updates from Vasily Vl. Suhachev.
344
345* French translation updates from Jean-Marc and from Wassil Janssen.
346
347* Bulgarian translation updates from Wassil Janssen
348
349Changes in 1.2.43 (2020-02-28):
350
351* cavern: Update to use v13 of the IGRF model for calculating declinations.
352  This was issued in December 2019 and should give slightly more accurate
353  declinations for surveys made since 2010.
354
355* aven:
356
357  + Fix colouring of "not in loop" when colouring by error.  1.2.42 introduced
358    a bug where surveys not in a loop were coloured as if they had zero error.
359    Fixes #111, reported by Bruce Mutton.
360
361  + Fix handling of grid in export.  The grid was always getting enabled
362    (probably since 1.2.8) even for formats which don't support exporting with
363    a grid.  This resulted in the bounding box being set wrongly for some
364    formats such as SVG, as reported by Richard Knapp on the mailing list.
365
366  + When showing errors processing the survey data we'd previously crash if
367    cavern incorrectly reported an error as being in a column off the end of
368    the line - now we just ignore the error column in this case.
369
370  + Support colouring by survey style ("normal", "diving", "nosurvey", etc).
371
372Changes in 1.2.42 (2019-09-04):
373
374* aven:
375
376  + Allow colouring by horizontal or vertical error.
377
378  + (Unix version): Disable scaling for HiDPI displays with GTK3.  The OpenGL
379    code needs work before this will work usefully, so just disable for now
380    (which simulates how things are when using GTK2).
381
382  + (Unix version): Fix orientation of notebook tabs when build with wxWidgets
383    3.1 development versions.  We want horizontal tab orientation, but were
384    passing a weird flag combination which now results in vertical tab
385    orientation.
386
387* When exporting to a format where we support rotation in the horizontal
388  plane (such as SVG), the rotation was incorrectly applied to cross section
389  data (except for the default rotation of zero).  Fixes #108, reported by
390  Richard Knapp.
391
392* Add a section to the manual covering the command line tools, and what you
393  might still need to use them for.
394
395* Fix compiler warning when building from source with GCC 9.
396
397* Consistently refer to macOS not OS X - Apple have renamed it yet again.
398
399* (macOS version): Revert the workaround for the crash on macOS 10.14.  The
400  bug we were working around is fixed in git ready for wxWidgets 3.0.5 and
401  there's a backported fix in the homebrew wxmac 3.0.4-2 package, which is how
402  we now recommend people install on a Mac.  Closes #101, reported by floho.
403
404* (macOS version): Remove buildmacosx.sh script since installing from homebrew
405  is now the recommended approach.
406
407Changes in 1.2.41 (2019-07-10):
408
409* aven:
410
411  + (Microsoft Windows version): Fix error on startup in the pre-built version
412    of 1.2.39 and 1.2.40.  This is a recurrence of the same issue as affected
413    1.2.33 - this time I've patched out the unnecessary check in wxWidgets
414    which causes this problem so it shouldn't recur again.  Reported by
415    Brian Clipstone.
416
417  + (macOS version): Add work around for crash on macOS 10.14 (not fully tested
418    as I don't have access to a Mac).  Hopefully fixed #101, reported by floho.
419
420Changes in 1.2.40 (2019-07-04):
421
422* aven: Draw the measuring line ring with an even shape.  Previously the exact
423  shape of the ring varied slightly depending on the exact coordinates, which
424  could be visually distracting once you noticed it.
425
426* We were casting a function pointer with a bool return type to the same type
427  but with a void return type.  In practice this probably works fine on most
428  platforms, but it's undefined behaviour and also gives a compiler warning
429  with some compilers.
430
431* Fix bug introduce in 1.2.39 with where the "esri" data file for PROJ is
432  installed.
433
434Changes in 1.2.39 (2019-06-29):
435
436* Support versions 5.x and 6.x of the PROJ library we use for handling
437  conversions between coordinate systems.  Reported by Bas Couwenberg
438  in #102, by Richard Knapp in #103 and by Martin Sluka in email.
439
440* (Unix and Mac OS versions): When checking if something is a file or if it is
441  a directory, we no longer treat a symlink as being neither, but instead
442  return an answer based on what the symlink points to.
443
444* aven:
445
446  + Improve handling of hidden splay ends.  Previously, hidden splay ends still
447    served as "targets" for snapping the mouse pointer to, and still got
448    crosses when crosses were enabled.  We don't have a handy flag for "this is
449    the outer end of a splay" and computing that on demand isn't so easy to do,
450    so for now we use the "anonymous station" flag so at least these cases now
451    behave properly for splays to anonymous stations (which is likely to be
452    what people with huge numbers of splays from disto-x, etc are using).  This
453    does mean that anonymous stations on continuation passages will incorrectly
454    also be off when splays are hidden, but that seems an OK trade-off for now
455    and a definite improvement over the previous situation.  The snapping of
456    the mouse pointer was reported by Frank Tully in #105.
457
458  + Fix typo in export UI (CVS should be CSV).
459
460* Documentation:
461
462  + Add CSV to documented list of survexport output formats.
463
464  + Fix *declination syntax synopsis - "auto" is a literal string, not a
465    placeholder.
466
467  + Update PROJ project name and website - the name is now "PROJ" (all caps and
468    no ".4" suffix) and the website is now: https://proj.org/
469
470* Install gtksourceview-3.0 language file so .svx files now get syntax
471  highlighting in gedit and other GtkSourceView-based editors.  Patch
472  from Philip Withnall.  Fixes #98.
473
474* (Microsoft Windows version): The Survex installer doesn't uninstall the old
475  version when you upgrade, but just overwrites it with the new version.  In
476  1.2.35 cad3d.exe was replaced with survexport.exe, but a user upgrading from
477  an older version would still have cad3d.exe from that old version.  We now
478  remove any old cad3d.exe left over from a previous install in the same
479  location to avoid confusion.
480
481* Add a few more message translations.
482
483* Fix warnings when built with a C++11 compiler.
484
485Changes in 1.2.38 (2019-03-02):
486
487* cavern:
488
489  + Deprecate MILS as angular units.  Survex has long support MILS as an alias
490    for GRADS.  However, this seems to be a bogus definition of a "mil" which
491    is unique to Survex (except that Therion has since copied it) - there are
492    several different definitions of a "mil" but they vary from 6000 to 6400 in
493    a full circle, not 400.  Reported by Andy Edwards.
494
495  + Fix segfault for *include "".  This isn't useful, but shouldn't crash.  It
496    now reports "file not found" instead.
497
498  + Use isnan() to check for not-a-number.  This is cleaner, more robust and
499    more efficient than formatting the number as a string and checking for
500    "NaN" or "nan" in the result.
501
502* Avoid unused variable warning when compiling from source with modern ffmpeg.
503
504* Drop support for wxWidgets < 3.0.  3.0.0 was released over 5 years ago and
505  should be easily available everywhere by now.  I'm no longer easily able to
506  test with wxWidgets 2.8, and this allows a significant amount of cruft to be
507  removed.
508
509* (Linux version): survex.spec: Fedora have removed gcc from the default build
510  environment so need to explicitly list it in the BuildRequires tag.  See
511  https://fedoraproject.org/wiki/Changes/Remove_GCC_from_BuildRoot for more
512  information.  Patch from James Begley.
513
514Changes in 1.2.37 (2018-11-18):
515
516* aven:
517
518  + Add basic "Colour by Survey" feature.  The colours used aren't currently
519    controllable.
520
521  + Fix export of splays.  Patch from Thomas Holder.
522
523  + Fix KML export to avoid invalid geometry when a tube intersects itself.
524    Patch from Robert Jones.
525
526  + (Unix version): Fix to work under Wayland by forcing the x11 GDK backend
527    for now.  This is a workaround until wxWidgets OpenGL support is updated
528    to work under Wayland.  Reported by Philip Balister.
529
530  + Fix warnings about using deprecated functions when building movie export
531    code using FFmpeg 4.0.
532
533* cavern:
534
535  + Compass MAK files: Handle fixed point coordinates in feet - previously the
536    units were ignored and the coordinates assumed to be in metres.
537
538  + Previously the first byte in a MAK file was ignored.  Typically MAK files
539    start with a comment, and since cavern currently ignores lines that start
540    with characters it doesn't understand the meaning of, this bug would often
541    go unnoticed.
542
543* survexport:
544
545  + Fix exporting of passages, walls and cross-sections by running the code
546    aven uses to decide how much to rotate each cross-section.  Previously all
547    cross-sections were aligned West-East.  Reported by Robert Jones.
548
549  + Default to .pos output if the program name is 3dtopos, and install a second
550    copy (or hardlink under Unix) as 3dtopos.  This provides compatibility with
551    current releases of Tunnel.  Reported by Becka Lawson, Wookey and
552    Stephen Crabtree.
553
554* Fix some German translations.  Patch from Thomas Holder.
555
556* (MacOS X version): Fix aven-create-app to not delete converted icons.
557  Typo spotted by Robert Jones.
558
559* Improve documentation for *team.  Document the requirement to quote names
560  unless a person is identified by just one name.  Document that the roles are
561  optional, as that information may not have been recorded, and to align with
562  therion's team command.
563
564Changes in 1.2.36 (2018-07-18):
565
566* aven:
567
568  + Add support for exporting as a CSV (Comma-Separated Values) file.
569
570  + Support exporting KML with altitude mode "clamp to ground".  In this mode,
571    the altitude in the data is ignored and it's rendered on the surface of the
572    terrain.  This is useful if your KML viewer renders the terrain as opaque
573    so underground data isn't visible.  Rendering cave passages on the surface
574    isn't great, but is better than not being able to see them at all.  This
575    option may also be helpful if you want to see where to look on the surface
576    for new entrances.
577
578  + Highlight surveys with a white loop as the mouse is moved over them in
579    the survey tree.  This is akin to how we highlight a station with a
580    white ring, and allows restoring "double-click survey in tree to zoom"
581    which temporarily required a quadruple-click in 1.2.35.
582
583  + Only show checkboxes in the survey tree for surveys not stations.
584
585  + Fix wxWidgets assertion if the user tried to select additional surveys
586    to show via the right-click menu.
587
588  + Fix multiple survey filtering when both a parent and child survey are
589    selected.  In this case it makes most sense to show all child surveys of
590    the parent, but we actually showed a slightly arbitrary subset of the
591    child surveys of the parent.
592
593  + The checkbox area in the survey tree is now included in the area which
594    is considered by mouse-over updates such as highlighting the station or
595    survey.
596
597  + Fix display of double quotes in cavern log window (they were being replaced
598    with control character 0x16 due to a typo in the code).
599
600  + Add shortcuts to buttons in cavern log window.
601
602  + Eliminate use of gluErrorString() function which eliminates some
603    deprecation warnings when building on macOS.
604
605  + Reject multiple --survey command line options for now (only the last has
606    been used for a long time, but now we actually support multiple survey
607    filtering this matters more).
608
609* survexport:
610
611  + Report a useful error when trying to convert a .3d file without coordinate
612    system information to GPS.  Reported by Mark Shinwell.
613
614  + Handle multiple redundant --survey command line options correctly.
615
616* dump3d: Report station flag "WALL", which was added in 1.2.7.
617
618* Minor translation updates.
619
620* Update manual for Microsoft Windows changes.
621
622* tests/: Add test coverage for warnings about suspect readings
623
624* Fix warning when compiling with clang.
625
626Changes in 1.2.35 (2018-07-03):
627
628* aven:
629
630  + Viewing can now be restricted to multiple surveys.  Use the right-button
631    menu on a survey in the survey tree and select "Show" to enable checkboxes
632    for that survey and all its siblings.  Only the selected surveys are shown
633    on screen, printed and exported.
634
635  + Don't open a survey when its name is double clicked.  This was happening
636    due to code added to "allow double-clicking to work on wxMSW >= 2.8.11".
637    However, reverting that change still seems to allow double-clicking to work
638    on both wxMSW and wxGTK, but fixes the unwanted additional opening of the
639    survey.
640
641  + Pick initial survey scaling based on whichever of the window width or
642    height gives the smaller scale.  Previously we always used the window
643    width, which can result in parts of the cave being outside the initial
644    view.  Reported by Wookey.
645
646  + Drop ability to specify a PROJ string in the export dialog.  This was added
647    to allow exporting to formats such as GPX before we added support for
648    specifying the projection in .svx files, and that support is now mature.
649
650  + DXF export now uses 2 decimal places (was 6) for the bounding box, for
651    consistency with the precision used for coordinates.
652
653  + Fix handling of surface flag during export.  In formats which discriminate,
654    legs could previously have got assigned the wrong status.
655
656  + Fix bug which probably prevented aven starting when OpenGL double buffering
657    is unavailable.  This is unlikely to affect any common configurations.
658
659  + (Microsoft Windows version): Fix loading of 3d files with non-ASCII
660    filenames.  Issue reported by Matic.
661
662  + (Microsoft Windows version): Fix incorrect display of some toolbar icons.
663    Probably broken since 1.2.17.
664
665* survexport: New command-line export program which uses aven's export code.
666  Replaces 3dtopos, cad3d and findentrances, since it can do all that these
667  tools could do, plus much more.
668
669* Merge more Spanish i18n updates from Evaristo Quiroga.
670
671* Minor updates to various other translations.
672
673* img library:
674
675  + Now supports reading from and writing to an existing FILE*.
676
677  + Improve API documentation.
678
679* (Microsoft Windows version): Fix packaging to include wxWidgets translation
680  files like it was supposed to, which fixes a few missing translations.  This
681  was probably broken by changes in 1.2.8.  Reported by Evaristo Quiroga.
682
683* (Microsoft Windows version): Drop two options from explorer bindings.
684  "Convert to DXF" and "Convert for hand plotting" have both been supported via
685  aven for a while, and that's a more useful way to access them as you can
686  control what gets exported.
687
688Changes in 1.2.34 (2018-03-24):
689
690* aven:
691
692  + (Microsoft Windows version): Fix error on startup in the pre-built version
693    of 1.2.33.
694
695  + (Microsoft Windows version): Now using wxWidgets 3.0.4 (was 3.0.2).
696
697Changes in 1.2.33 (2018-03-22):
698
699* aven:
700
701  + Reliably disable scale bar in perspective view.  This is supposed to happen
702    (because the scale across the screen varies in perspective view) but
703    actually the scale bar stayed around until an update was forced for another
704    reason.  Spotted thanks to Pedro Silva Pinto.
705
706  + Make "no date"/"not in loop" colour grey.  The white was a bit bright and
707    made it harder to see the legs that had colours.  The grey now used is
708    within the brightness range of the other colours.  Fixes #94, reported by
709    Erin Lynch.
710
711  + Fix KML export - exporting both survey legs and station names resulted in a
712    malformed KML file.  This bug was introduced in 1.2.30 when support for
713    exporting passages and walls was added.  Reported by Erin Lynch in #90.
714
715  + Consistently use 2 decimal places for altitude in KML output.  Some places
716    used 8 decimal places which is appropriate for lat and long, but clearly
717    overkill for an altitude in metres and increases the file size
718    unnecessarily.
719
720  + Right-align bearing widget in print/export dialog.  The change to allow the
721    value to wrap round from 360 to 0 in 1.2.27 inadvertently made this control
722    left-aligned (due to incorrect wxWidgets documentation of the default style
723    for this control).
724
725  + (Unix version): Work around wxWidgets bug so that custom cursors work
726    under GTK3.
727
728  + (Unix version): Update GTK version reporting - report GTK3, and don't
729    bother to report subversions of GTK2 (it seems to be fairly arbitrary
730    which subversions wxWidgets defines constants for).
731
732  + Update code to work without warnings when using wxWidgets 3.1.0 (the
733    current development version).
734
735  + Make movie export code compatible with upcoming FFmpeg 3.5 release.
736    It should still work with the older versions that worked before this
737    change.  Reported by James Cowgill in https://bugs.debian.org/888334
738
739* cavern:
740
741  + Warn about 2 digit years.  We can't change the assumption that these are
742    19xx without risking breaking existing datasets, but the further we get
743    into this century, the more likely such an assumption is to catch someone
744    out.  The warning can easily be quashed by explicitly adding the assumed
745    "19".
746
747* The Spanish translation is now up to date once more, thanks to updates from
748  Evaristo Quiroga.
749
750* Merge French translation updates from Jean-Marc.
751
752* Fix transposed German Northing and Easting labels.  Fixes #95, reported by
753  milosch.
754
755* Fill in missing translations of "Easting", "Northing", "E" and "N" for
756  Bulgarian, Greek, Hungarian, Polish and Russian based on other existing
757  translated messages.
758
759* Align .pos file headings better with columns of coordinates below for
760  Indonesian and Polish.
761
762* Fix handling of the message string "error" before messages loaded.  If
763  there's an error loading messages, we need this message to report it.
764  Reported by Martin Sluka.
765
766* Fix a few compiler warnings.
767
768* img library: Fix extracting leaf survey name for survey title.  When there
769  are three or more levels of survey, we were taking everything after the first
770  dot rather than everything after the last dot.
771
772* Fix problems with testsuite on macOS:
773
774  + cavern.tst: Skip "ONELEG" testcase on case-insensitive filing systems
775    - this test isn't meaningful unless the filing system is case-sensitive,
776    but happens to fail if it isn't.
777
778  + cavern.tst: Workaround limitations of Apple's sed.
779
780  + aven.tst: Fix not to hang on macOS.
781
782  + smoke.tst: Remove aven testcases which duplicate those in aven.tst.
783
784* Clean up handling of support files in relocatable installs - this is now
785  detected at run time on macOS.
786
787* Split out macOS Aven.app creation into a make rule so it can be easily used
788  by the homebrew formula.
789
790* buildmacosx.sh:
791
792  + Fix when WX_CONFIG not specified - this was giving a confusing error like:
793    ./buildmacosx.sh: line 163: --cc: command not found
794
795  + Use wxWidgets 3.0.4.
796
797* Stop checking wx-config --ldflags as this option was removed in wxWidgets 2.6
798  and we currently require 2.8 or newer.
799
800Changes in 1.2.32 (2017-07-08):
801
802* aven:
803
804  + Make splays on printouts a darker shade of grey.  Reported by Erin Lynch
805    and Anthony Day.
806
807  + In export formats which include 3 dimensions (DXF, PLT, GPX, KML, JSON,
808    POS), the value in the Z dimension was negated.  Bug introduced by fixes
809    for export of rotated plans and tilted elevations in 1.2.27.  Reported by
810    Erin Lynch in #89.
811
812  + Ignore viewing angles for export formats which work in 3D.  When the
813    rotation and tilt controls are hidden in the export dialog we were still
814    using their values to transform the data, so if you set them with for one
815    export format which support them, then switched to an export format which
816    doesn't, you'd get bogus coordinates in the exported file.  Bug probably
817    introduced in 1.2.27 by fixes for exports of rotated plans and tilted
818    elevations.
819
820  + Fix exporting to skencil and Survex .pos formats.  When aven's export to
821    .pos was added in 1.2.19, the ordering didn't match up and since then .pos
822    export has produced skencil files and vice versa.
823
824  + Don't leave terrain on if loading terrain data fails.  Previously if you
825    clicked the terrain icon (or via the menu) with no terrain loaded, but no
826    terrain got loaded (e.g. because the survey data lacks an explicit
827    coordinate system, or because the file failed to load, or because you
828    cancelled the dialog) then the terrain icon/menu item was still changed to
829    "on".
830
831  + Disable texturing while drawing terrain.  Previously the terrain got a bit
832    darker when "Textured Walls" were enabled.
833
834  + Force a refresh when "Textured Walls" are enabled or disabled.  Previously
835    the display wouldn't update right away.
836
837* Manual:
838
839  + Document how to specify fixed point altitude in feet.
840
841  + Explain why *fix warns about unused fixed points
842
843* Building from source now requires a compiler with decent support for C++11.
844  If you're using GCC, then GCC 4.7 should suffice.  This should not be an
845  onerous requirement - e.g. Debian wheezy and Ubuntu trusty both have a recent
846  enough GCC.  If special options are needed, these should get probed for and
847  automatically.  Fixes building 1.2.31 with GCC < 6, reported by Wookey.
848
849Changes in 1.2.31 (2017-07-01):
850
851* aven:
852
853  + Use superscript 'g' symbol instead of word 'grads' in status bar.  This
854    conserves the limited space available, and we already do this in the
855    compass and clino indicators so it's more consistent too.
856
857  + Show one decimal place on measure line bearing.  Pointed out by Benedikt
858    Hallinger on the therion list, though I'm sure this has been asked for
859    before by others.
860
861  + Show gradient of the measuring line when both ends are stations.
862
863  + Allow selection of text in cavern log window.  Selection was disabled in
864    1.2.28 because it seemed you couldn't actually copy selected text to the
865    clipboard, but retesting this now actually works fine for me, both with
866    current git master with the change reverted, and with code just before the
867    original change.
868
869  + More robust parsing of cavern output (cleanly handle context highlighting
870    which extends beyond the end of the line).
871
872  + Allow showing duplicate legs as dashed lines or hiding them entirely,
873    with dashed now being the default.  Implemented by Patrick Warren.
874
875  + Also allow "Dashed" for splays and "Faded" for duplicate legs.
876
877  + Splay legs in surface data are also shown faded.
878
879  + Check environment variables VISUAL and EDITOR when looking for editor to
880    use when a warning or error is clicked on in the cavern log window.  The
881    specified editor may have a GUI or need to run in a terminal, so we have to
882    special-case each editor supported, and that means we can pass extra
883    options needed to position the cursor on the appropriate line/column.
884    Currently these editors are supported: gvim, nvim, vim, gedit, pluma,
885    emacs, nano, jed, kate.  Suggested by Wookey.
886
887  + Fix handling of non-square terrain data files - the X and Y dimensions were
888    swapped.  Reported by detrito.
889
890  + Improve parsing of DEM data with .hdr file.  Use documented defaults for
891    more values, and where we only support a subset of values (or a particular
892    value) check for unsupported values in more cases.
893
894  + When colouring by depth, fix colouring and texturing of polygons which
895    cross depth bands.  The previous problems were most obvious with high
896    chambers and long legs down deep pitches, especially in for surveys without
897    much vertical range.
898
899  + Support for drawing blobs using point sprites was added in 1.2.28,
900    but caching that this worked wasn't hooked up properly so the test to
901    see if this worked would happen at the start of each run.  This is now
902    cached as intended which should reduce start up time a little when blobs
903    are drawn in this way.
904
905  + Fix drawing of crosses with lines.  This is a fall-back case which is
906    rarely used as most OpenGL setups will handle a better method, but it was
907    resulting in crosses with a four-pixel square in the centre - now the
908    centre should be a single pixel.
909
910* cavern:
911
912  + Allow *data with no arguments to reset the current style - useful for
913    entering passage data where there are side passages.
914
915  + Fix hang processing file without newline at end.  This bug was introduced
916    by changes in 1.2.28.  Reported by Mark Brown.
917
918  + (Mac OS X and Microsoft Windows versions): Build with newer version of
919    PROJ library which fixes buggy handling of *fix with lat-long coordinates.
920    Also add a testcase to the testsuite to alert users building for themselves
921    with an affected PROJ version on any platform.  Reported by Ross Davidson.
922
923  + Fix cavern to handle Compass .DAT with no survey team.  Previously this
924    resulted in the bogus error: Expecting numeric field, found "FROM"
925    Reported by Erin Lynch.
926
927  + Handle UTF-8 "BOM" at start of .svx files.  Unicode doesn't recommend its
928    use, but Microsoft stuff seems to like to create files with it in, and the
929    error cavern currently reports for such files is very confusing, so it
930    seems best to just handle it.  Reported by Rob Eavis.
931
932  + Change a couple of messages to use double quotes for consistency with all
933    other messages.
934
935* extend:
936
937  + Now runs a bit faster.
938
939  + Splays are now carried over the extended survey.  The current handling
940    is simplistic, but should do a good enough job to be more useful than
941    discarding splays.  The splays at each station are all rotated together
942    based on the bearing between the stations either side of the current one
943    along the first path extended through that station.  This nicely handles
944    dead ends and the situation at the top or bottom of a pitch, and should
945    tend to pick an angle close to the passage orientation along a traverse.
946    It's weakest at junctions.  Feedback (especially examples which could
947    be handled better) most welcome.
948
949* French translation is now up to date again, thanks to Jean-Marc.
950
951* Remove erroneous menu shortcut markers from Polish translations.
952
953* Fill in some missing translations in several languages by using message
954  translations from therion.
955
956* Add note to *fix documentation to clarify the coordinate order with *cs
957  long-lat.  Issue raised by Ross Davidson.
958
959* Fix errors in documentation of *units: "DEG" should be "DEGS", and
960  "MINUTES" has been supported for ages but wasn't documented.  Reported by
961  Footleg.
962
963* Fix a few typos in the documentation.
964
965* Fix compilation warning with recent GCC.
966
967Changes in 1.2.30 (2016-10-03):
968
969* aven:
970
971  + (Microsoft Windows version): Fix crash when trying to print or export
972    (probably introduced in 1.2.28).  Reported by Brian Clipstone.
973
974  + Report error if terrain file contains no terrain data in area of survey.
975    Suggested by detrito.
976
977  + Errors when writing an export file were reported with the wrong filename
978    - the .3d file, not the filename we were trying to write to.
979
980  + Export to KML now supports exporting passages, walls and cross-sections.
981    Addresses the remainder of ticket #4.
982
983* Add man page for dump3d.
984
985Changes in 1.2.29 (2016-09-27):
986
987* aven:
988
989  + Fix SVG output with non-ASCII characters (the charset in the SVG file
990    is now set to UTF-8 not ISO-8859-1).
991
992  + (Microsoft Windows version): Fix error dialog on startup in pre-built
993    version.  Reported by Brian Clipstone.
994
995* Manual: Add link to TerrainData wiki page.  Omission highlighted by Erin
996  Lynch and "detrito".
997
998* Fix to build without FFmpeg/libav and with older versions, broken by changes
999  in 1.2.28.  Reported by James Begley.
1000
1001Changes in 1.2.28 (2016-09-24):
1002
1003* cavern:
1004
1005  + Show the contents of the line after error and warning messages while
1006    processing survey data, and indicate the region of the line in many cases
1007    in the same style that compilers such as GCC and clang use (using the
1008    column number we already have, plus new width information).  Based on a
1009    patch from Mateusz Golicz.
1010
1011  + Add column and width information for many more error and warning messages.
1012
1013  + Fix column for "Separator in survey name" warning.
1014
1015  + Improve warnings when using a backclino with range 0-180 degrees (reusing
1016    the same machinery we already have for a forward clino with range 0-180
1017    degrees).
1018
1019* aven:
1020
1021  + Include LRUD in printout/export of extended elevations, broken by
1022    improvements to export of tilted elevations in 1.2.27.  Reported by Anthony
1023    Day.
1024
1025  + Name <trk> tags in GPX output, so Garmin GPS units name the imported track
1026    usefully.  Reported by Anthony Day.
1027
1028  + Remember scale from previous print or export operation in the same run of
1029    aven.  Suggested by Stuart Bennett.
1030
1031  + Convert range indication below shown line to a highlight on that region
1032    of the line in cavern log window.
1033
1034  + Fix colouring of error/warning without column in cavern log window.
1035
1036  + Fix click on error/warning without column in cavern log window.
1037
1038  + Fix highlight of translations of "error" or "warning" containing non-ASCII
1039    characters.  This fix for this only works with a Unicode build of
1040    wxWidgets, but as of wxWidgets 3.0, all builds are Unicode, so this
1041    shouldn't be much of a problem as wxWidgets 2.x is close to obsolete now.
1042    Reported by Mateusz Golicz.
1043
1044  + Disable selection of text in cavern log window - you can't currently copy
1045    it to the clipboard, so until that's implemented it seems better to disable
1046    the ability to select it.  Reported by Wookey.
1047
1048  + Avoid special "1000" scale entry when exporting.
1049
1050  + Show 1 page when "One Page" selected.
1051
1052  + Reload processed data when restricting view.  Fixes failure when
1053    restricting view on data just processed via aven.  Spotted by Andrew
1054    Atkinson and myself.
1055
1056  + Don't hide blobs and crosses behind terrain.  Reported by Jenny Black.
1057
1058  + Fix rendering of crosses using point sprites.  The texture being used was
1059    misaligned relative to the image used for the visual fidelity check, so the
1060    check always failed and point sprites would never be used.  Where point
1061    sprites are supported, they're probably the fastest option - on my netbook
1062    this change improves FPS by ~6 fold when displaying crosses for a large
1063    survey.
1064
1065  + Support drawing blobs using point sprites.  About 5 times faster than using
1066    lines on my netbook.
1067
1068  + Recheck how best to draw crosses and blobs on the first run after Survex
1069    is upgraded (or downgraded) as the rendering code may have changed (we
1070    already recheck when the OpenGL hardware or driver changes).
1071
1072  + Change "MPEG" export to be MPEG4 (.mp4) rather than MPEG1 (.mpg).
1073    MPEG4 produces smaller output of higher quality, and should be widely
1074    supported these days.  And I can't get the MPEG1 output to work without
1075    buffer underflows, resulting in a file which doesn't play without
1076    glitches.
1077
1078  + Add OGG video to the list of formats - it's more compact than the others
1079    we currently list, though slower to write.
1080
1081  + Fix export to movie formats for which libav/FFmpeg needs to seek the file
1082    being written.  This was broken by changes in 1.2.27.
1083
1084  + Overhaul movie export for the current FFmpeg API, fixing deprecation
1085    warnings when building against a recent version.
1086
1087  + (Microsoft Windows version): Fix corrupted exported movie files.  1.2.27
1088    changed the movie export code to allow writing to files with non-ASCII
1089    characters in the names, but the new code failed to open the file in binary
1090    mode, leading to corrupt output.  Fixes #81, reported by Erin Lynch.
1091
1092  * (Microsoft Windows version): Pre-built version now uses FFmpeg 3.1.3 for
1093    movie export.
1094
1095  * (Mac OS X version): Pre-built version now uses FFmpeg 3.1.3 for movie
1096    export.
1097
1098* Fix to build without FFmpeg/libav, broken by changes in 1.2.27.  Reported by
1099  James Begley.
1100
1101* The Polish translation is now very close to being complete, thanks to a
1102  substantial update from Mateusz Golicz.
1103
1104* Merge catalan translation updates from Adolfo Jayme.
1105
1106* (Microsoft Windows version): Map LANG_CHINESE to zh_CN not zh so Chinese
1107  messages get used automatically.
1108
1109* cavern.tst: Remove random : from after ] - dash ignores the extra character,
1110  but it causes this test to fail if /bin/sh is a different shell (e.g. bash).
1111
1112* cavern.tst: Add expected output for more testcases.
1113
1114* Remove unwanted execute bit from some testcase data.
1115
1116* Use https for more URLs which support it.
1117
1118Changes in 1.2.27 (2016-06-06):
1119
1120* aven:
1121
1122  + Right click on a survey in the survey tree now gives a pop-up menu
1123    with "Hide others", which restricts the view to just that survey
1124    and any subsurveys.  Right click on the root of the survey tree
1125    gives a menu with "Show all" to undo any restriction in effect.
1126    (Currently these are implemented by reloading the file and using
1127    the same machinery as the --survey= command line option, but that will
1128    probably change in the future).
1129
1130  + If there's a sub-survey restriction (from the --survey= command line
1131    option or the new UI described above) it is now shown in brackets after
1132    the survey tree root.
1133
1134  + When reloading a survey, preserve the current view position (previously
1135    the view was recentred).
1136
1137  + When reloading a survey, actually preserve the current scale factor
1138    (this was meant to happen, but the adjustment was applied in the
1139    wrong direction).
1140
1141  + New "File->Extended Elevation..." menu item provides a way to generate
1142    extended elevations for simple cases without having to use the command
1143    line.  Suggested by Fleur Loveridge.
1144
1145  + Don't process key presses if accompanied by an unexpected modifier key.
1146    In particular, this means that aven no longer interferes with Alt+<function
1147    key> (which is typically handled by the desktop) and Alt+<letter> (which is
1148    typically a menu short cut).  Reported by Владимир Георгиев.
1149
1150  + Reduce file loading time by ~5%.  The station name compare function was
1151    something of a hot spot, and optimising it yielded a nice improvement.
1152
1153  + Allow splay legs to be disabled in when printing and exporting.  Mostly
1154    addresses #60.
1155
1156  + SVG export now shows splay legs thinner and in grey.  See #60.
1157
1158  + Fix export of rotated plans and tilted elevations - previously plans were
1159    always aligned with North up, and elevations which weren't exactly side on
1160    were exported as plans.  Reported by Stuart Bennett.
1161
1162  + Fix offset bounding box for exported elevations.
1163
1164  + In print/export dialog the bearing value now wraps if you scroll up past
1165    360 or down past 0.
1166
1167  + Fix greying out of LRUD-based controls in the print/export dialog when the
1168    view is tilted (i.e. not plan or elevation).  This stopped working in
1169    1.2.18 when the pan and tilt spin controls were changed from integer- to
1170    real-valued ones.
1171
1172  + Printouts now show LRUD as pale grey arrows from the station they are
1173    measured from.  Based on patch from Michael Sargent.  Closes #65.
1174
1175  + Take LRUD into account for printout size.  Fixes #72, reported by Erin
1176    Lynch.
1177
1178  + Update movie export code to work with latest version of FFmpeg.
1179
1180  + Make "Show Log" a toggle, so you can click on the button to take a look at
1181    the log, and a second click returns you to the survey view.
1182
1183  + (Microsoft Windows version): Open the font file in binary mode - it looks
1184    like we were lucky and the font file (or at least its current version)
1185    would have loaded OK in text mode despite being binary data.
1186
1187  + (Microsoft Windows version): Exporting to files with non-ASCII filenames
1188    should now work.
1189
1190* cavern:
1191
1192  + Allow tape or backtape to be omitted.  Reported by Erin Lynch.
1193
1194  + Grid convergence is now corrected for when using automatically
1195    calculated declinations (*declination auto <X> <Y> <Z>).  Requested
1196    by Mateusz Golicz on the mailing list.
1197
1198  + Clear any cached calculated declination upon another *declination auto
1199    with different coordinates.  Previously if the date stayed the same,
1200    a previously cached declination for the old coordinates was used.
1201
1202  + Fix check for end of version number array in *required.   We would check up
1203    to 12 version components, the last 9 being bogus.  In practice, *require is
1204    only likely to be used with up to three components, so this wouldn't be an
1205    issue.
1206
1207  + *begin with an invalid prefix could cause a crash in some cases.  Fixed
1208    by patch from Colin Watson.
1209
1210  + Report column locations for errors to do with readings.
1211
1212* Merge translation updates from Jean-Marc.
1213
1214* img library: Better document which members can be set when writing.
1215  Highlighted by email query about use of img API from Владимир Георгиев.
1216
1217* Document how *declination interacts with *calibrate declination if both are
1218  used in the same dataset.
1219
1220* doc/3dformat.htm: Update details of how changes to the current label buffer
1221  are encoded to reflect changes in v8.  Reported by Angus Sawyer.
1222
1223* Use docbook2man instead of docbook-to-man to generated Unix man pages
1224  from SGML source.  The latter seems to be no longer actively maintained, and
1225  docbook2man now does a similarly good job.
1226
1227* Use https for survex.com links, and for other sites which support it.
1228
1229Changes in 1.2.26 (2016-01-07):
1230
1231* aven:
1232
1233  + (Microsoft Windows version): Fix to be able to process .svx files with
1234    cavern again.
1235
1236* (Microsoft Windows version): Simplify upgrading process with innosetup
1237  installer - if Survex is already installed, we now just install to the same
1238  location and use the same start menu folder.
1239
1240* (Linux version): survex.spec: Update for filetype metadata change in 1.2.25.
1241  Fixes #79, reported by James Begley.
1242
1243* (Linux version): survex.spec: Fix to work with RPM 4.13.  Fixes #79, reported
1244  by James Begley.
1245
1246Changes in 1.2.25 (2016-01-05):
1247
1248* aven:
1249
1250  + Drop broken code which attempts to fix 2D pitches.  Fixes #73, reported by
1251    Erin Lynch.  #76 tracks the issue the removed code was trying (but failing)
1252    to address.
1253
1254  + When animating, don't try to update station info based on mouse movement
1255    over the survey tree.
1256
1257  + Further improve code to handle cavern subprocess in aven.
1258
1259  + Fix jump to error for filenames containing colons when the error location
1260    doesn't have a column number.  Bug noted by Jenny Black.
1261
1262  + If we encounter bad UTF-8 in cavern output, replace it with a red and white
1263    ? in a diamond (previously we gave up showing output at the first bad
1264    sequence).  This can happen if you process a .svx file which isn't UTF-8
1265    encoded.
1266
1267  + (Unix version): Don't try to set the terminal window title when opening an
1268    editor from the cavern log window - gnome-terminal no longer supports this,
1269    and there doesn't seem to be a portable option for specifying the title for
1270    terminals which do still support this.
1271
1272  + (Microsoft Windows version): Also quote for cmd.exe so that paths with
1273    spaces in work reliably.  Reported by Marco Cotto.
1274
1275* cavern:
1276
1277  + Improve error for mismatched fore/back-sight plumbs, reported by Andy
1278    Edwards (see #78).
1279
1280  + Fix to use correct sd for backcompass.  We were using zero instead, the
1281    most obvious effect of which was that the threshold for warning about
1282    differing COMPASS and BACKCOMPASS was about 71% of what it should have
1283    been, so we were warning in more cases than we should have been.
1284
1285  + Implement support for specifying a length on backsights - if you're using
1286    something like a disto-x, you'll get a distance reading for the backsight
1287    too.  Fixes #71, reported by Erin Lynch.
1288
1289  + Make line counting more robust to mixed line ends.  Noticed in example file
1290    from Pete Smart (see #69).
1291
1292* extend: New --show-breaks option which adds a leg flagged as surface survey
1293  between each points at which a loop has been broken.  Suggested by Jenny
1294  Black.
1295
1296* (Unix version): Update filetype metadata to work with modern desktops.
1297
1298* Fix incorrect reporting of errors reading and writing processed survey data.
1299  Since 1.2.8, the error strings corresponding to IMG_CANTOPENOUT,
1300  IMG_BADFORMAT and IMG_DIRECTORY have been mixed up (this doesn't affect
1301  external programs using the img library, only Survex).  Reported by Jenny
1302  Black.
1303
1304* Add missing options to extend man page and --help output.  Noted by Jenny
1305  Black.
1306
1307* Document Document Ctrl+cursor keys for rotating and tilting in aven man page.
1308
1309* Fix broken SGML markup in manual.
1310
1311* Fix typo in manual reported by Jenny Black.
1312
1313* Update vim syntax file for newer commands, etc.
1314
1315* Minor translation updates.  Thanks to Piotr Strębski and Jean-Marc.
1316
1317* Fix to compile with FFmpeg 2.9.  Reported by Andreas Cadhalpun in
1318  https://bugs.debian.org/803863
1319
1320* Stop maintaining ChangeLog files.  They make merging patches harder, and stop
1321  'git cherry-pick' from working as it should.  The git repo history should be
1322  sufficient for complying with GPLv2 2(a).
1323
1324* (Microsoft Windows version): The installer requires admin privileges on Vista
1325  and later and OS versions older than Vista are past end of life, so drop code
1326  which tries to set up the registry differently depending if we have admin
1327  privileges or not.
1328
1329Changes in 1.2.24 (2015-09-23):
1330
1331* aven:
1332
1333  + (Microsoft Windows version): Fix the cavern log window.  Reported by Brian
1334    Clipstone.
1335
1336  + (Microsoft Windows version): Add workaround to avoid breakage in Therion.
1337    Reported by Jenny Black.
1338
1339  + If wx was built with thread support, aven now runs cavern from a separate
1340    thread, which works much better under wxMSW (where we can't use select),
1341    and also seems a bit smoother on Linux.
1342
1343  + Fix handling of encoding of filenames when the operating system has no
1344    locale installed corresponding to the language selected for Survex's
1345    messages.
1346
1347  + Undo accidentally committed debugging code which was sending message to
1348    the terminal in 1.2.23.
1349
1350* (Linux version): configure now looks first for wx-config-3.0, which Fedora's
1351  wx3 packages have.  Reported by James Begley.
1352
1353* Indonesian translation fully up to date again.
1354
1355* Manual: Document anonymous stations, based on the text from NEWS.  Reported
1356  by Wookey.
1357
1358Changes in 1.2.23 (2015-09-06):
1359
1360* aven:
1361
1362  + Updating the cavern log window is now much smoother, especially on slower
1363    machines.
1364
1365  + Show "busy" mouse cursor while processing survey data.
1366
1367  + Fix an assertion if you try to start processing a survex file while one is
1368    already being processed.
1369
1370  + Processing a .svx file with an error now still adds it to the file history.
1371    Reported by Martin Green.
1372
1373  + Fix the orientation of the starting end of tubes.
1374
1375* cavern:
1376
1377  + New *ref command to allow specifying an external reference (e.g. where to
1378    find the original survey notes).
1379
1380  + Drop support for showing percentage progress in cavern.  It's confusing in
1381    a multiple-file dataset as it shows progress in the current file so jumps
1382    around.  It also slows down processing, and on a slow machine you'd don't
1383    want that, while on a fast machine processing isn't slow enough for the
1384    progress display to be useful.
1385
1386* French translation is now completely up to date, thanks to Michel Bovey.
1387
1388* Bundle proj's EPSG and ESRI code lists in the installers for MS Windows and
1389  OS X so that things like "*cs EPSG:29903" work.  Reported by Graham Mullan.
1390
1391* (Microsoft Windows version): Process survey data with aven rather than
1392  running cavern.
1393
1394* (Microsoft Windows version): Installer built with InnoSetup 5.5.6 (recent
1395  releases have been built with 5.5.3) to see if that solves Ray Duffy's
1396  reported issue with not having file associations for .svx files created.
1397
1398Changes in 1.2.22 (2015-08-17):
1399
1400* aven:
1401
1402  + Ensure that the window has a depth buffer.  Whether it does by default
1403    seems to vary depending on OS and maybe graphics card.  Fixes #55 (terrain
1404    is no longer visible through itself), and also the rendering of passage
1405    tubes.  Thanks to Martin Green for pointing me in the right direction for
1406    finding this fix.
1407
1408* cavern:
1409
1410  + Fix *declination with an angle to actually work.
1411
1412  + Fix assertion if we try to identify a hanging survey by an anonymous
1413    station.
1414
1415  + Improve errors for invalid survey names in *begin, *end, *equate and
1416    *export.
1417
1418Changes in 1.2.21 (2015-07-28):
1419
1420* aven:
1421
1422  + Fix exporting to KML and other text-based formats to always use "." for the
1423    decimal separator - previously "," would be used when the user's locale
1424    specified this for the decimal separator.  Reported by Jan Schorn.
1425
1426  + Implement exporting of survey legs in KML format.
1427
1428  + Put "paddle" placemarker icons on stations in exported KML files, using the
1429    same colour coding for entrances, fixed points and exported points as aven
1430    does.
1431
1432  + Remove the "Coordinate projection" field from the print dialog, as it isn't
1433    relevant there.  Reported by Wookey.
1434
1435  + Fix the initial scale for small caves (since 1.2.18 the initial scale has
1436    been too small).  Reported by Wookey.
1437
1438  + Don't rescale if the same file is reloaded, but adjust the volume diameter
1439    as appropriate.
1440
1441  + Use wxGetenv() to read the SURVEXEDITOR variable, so we can accept Unicode
1442    values on Windows.
1443
1444* cavern:
1445
1446  + Fix coordinate systems using latitude and longitude - PROJ.4 wants these in
1447    radians, but we were passing degrees, which would generally cause the
1448    conversion to the output coordinate system to fail.  Reported by Wookey.
1449
1450  + Fix *fix with standard deviations when *cs is in use, give an error for use
1451    of *fix with standard deviations before *cs.
1452
1453  + Add new *declination command with support for setting the declination
1454    automatically from the IGRF model based on the survey date.  Thanks to the
1455    Therion developers for the IGRF support code, which we're reusing.
1456    Fixes #54, reported by Wookey.
1457
1458  + Allow the units for the zero error to be specified, making it easier to
1459    specify calibration with a scale if you measure the zero error externally
1460    (rather than using the instrument itself).  Fixes #61, reported by Andrew
1461    Atkinson.
1462
1463  + Report the error from PROJ when coordinate conversion fails as part of the
1464    actual error rather than on a separate line.
1465
1466  + Fix use after free after *solve.  This only occurs if a leg between the two
1467    exact same stations appears right before and right after the *solve, which
1468    is unlikely in real data, but the testsuite has an instance of this.  This
1469    was introduced by the repeat leg averaging added in 1.2.17.
1470
1471  + Fix small memory leak when solving network.  This doesn't really matter
1472    when solving at the end of processing as cavern will exit after that, but
1473    if *solve is used we continue processing after solving.
1474
1475* Remove compatibility handling for specifying a country variant of a language
1476  in SURVEXLANG using "-" with a lower case country code (e.g. "en-us") - we
1477  changed to the standard "en_US" way back in 2001.  This code was mangling
1478  character sets with a "-" in, and is no longer useful.
1479
1480* Ignore any "@<something>" modifier in the language code.
1481
1482* Improve documentation of magnetic declination handling, and cover the new
1483  "*DECLINATION" command.
1484
1485* Document aven's command line options in the manual and its man page.
1486  Reported by Jenny Black.
1487
1488* Point to '*case' and '*truncate' from the 'SEE ALSO' sections of each other's
1489  documentation.
1490
1491* Remove references to SpeleoGen from the documentation - it hasn't been
1492  updated for many years, and can't read recent versions of the .3d format.
1493
1494* Strip documentation references to obsolete versions of MS Windows.
1495
1496* doc/HACKING.htm: Update list of debian packages to install to build from git.
1497
1498Changes in 1.2.20 (2015-06-26):
1499
1500* aven:
1501
1502  + When printing, use the top margin rather than the right margin to calculate
1503    the height of the printable area.  In practice, the two values seem to be
1504    the same or very similar by default.
1505
1506  + Avoid assertion if the about dialog image fails to load.  Reported by Phil
1507    Maynard.
1508
1509  + Optimise the size of the about dialog images.
1510
1511  + Add support for reading terrain data which isn't in a .zip file.
1512
1513  + Force a refresh after loading terrain data so that it gets displayed right
1514    away.
1515
1516  + Make checks for terrain data extensions in zip files case insensitive.
1517
1518  + If reading terrain data fails, always report an error and never try to
1519    display it.
1520
1521* cavern: Allow clino readings in diving style data, suggested by Andrew
1522  Atkinson.  Currently these readings are ignored, but a future version will
1523  check that they're consistent with the angle given by the depth gauge and
1524  tape, and perform suitable averaging.
1525
1526* Remove lingering traces of svxedit.
1527
1528* configure: Fix to allow compiling without libav/ffmpeg, as was possible
1529  before 1.2.19.
1530
1531* (Unix version): Install the filetype and aven application icons under
1532  /usr/share/icons/hicolor, which is where they're expected to be these days.
1533
1534* (Unix version): Add %f to Exec in survex-aven.desktop.
1535
1536* (Mac OS X version): Remove useless extra copy of about box images from OS X
1537  disk image.
1538
1539* (Mac OS X version): Only ship one copy of each of the translations.
1540
1541* (Mac OS X version): Reduce the size of the aven binary by disabling a load of
1542  libav features we don't use.
1543
1544* (Microsoft Windows version): Reduce the size of the aven binary by disabling
1545  a load of libav features we don't use.
1546
1547* (Microsoft Windows version): Update message files to fix a missing Chinese
1548  message in the installer.
1549
1550Changes in 1.2.19 (2015-06-18):
1551
1552* aven:
1553
1554  + Fix exporting to GPX, KML and HPGL, which all failed to write the header to
1555    the exported file in 1.2.18.
1556
1557  + Add exporting to Survex .pos format.
1558
1559  + If the measuring line isn't currently active, pressing "Escape" will now
1560    exit full screen mode.
1561
1562  + (Mac OS X version): Change the shortcut for full screen mode to be the
1563    standard Ctrl+Command+F (rather than Shift+Command+F which we have been
1564    using since 1.2.7).
1565
1566  + (Mac OS X version): When we centre the view on the station this can
1567    generate a mouse move event, so clear the variable which says we are
1568    dragging before we process a left click on a station.  This avoids random
1569    rotations of the survey when clicking on a station, reported in #47 by Hugh
1570    St. Lawrence.
1571
1572  + (Mac OS X version): Force use of a non-native toolbar to stop the toolbar
1573    icons from being rescaled and looking fuzzy.
1574
1575  + (Mac OS X version): Remove code added in 1.2.18 which tries to set stop the
1576    toolbar icons from being rescaled, but which requires an unreleased version
1577    of wxWidgets, had a typo in, and doesn't actually seem to work anyway.
1578
1579  + (Mac OS X version): Drop out of full screen mode if the mouse is mode to
1580    the top of the screen, since we can't seem to display the menu bar in this
1581    case like we do on other platforms.
1582
1583  + (Mac OS X version): Enable aven's movie export feature.
1584
1585  + (Mac OS X version): Enable wxDisplay when building wxWidgets to better
1586    support multi-monitor setups.
1587
1588  + (Mac OS X version): Silence warning visible when aven is run from a
1589    terminal about a missing CFBundleTypeRole.
1590
1591  + When reading terrain data from a .zip file, report an error if the .zip
1592    file is bad, or if it doesn't contain any terrain data we recognise.
1593
1594  + Tweak error message in terrain reading code to distinguish two failure
1595    cases.
1596
1597  + Add viewing angles and scale to footer, and shorten some of the other items
1598    to make room for this extra information.  (Fixes ticket #52, reported by
1599    Erin Lynch)
1600
1601  + If the footer is wider than the printout width, scale down the font used
1602    so that it exactly fits; if the footer is narrower, than space out the
1603    items in in so it uses the full width.
1604
1605  + If the saved size for aven's window exceeds the current display size
1606    (mostly likely because we're now plugged into a smaller monitor), then
1607    reduce the size of the window to fit the display.  If the saved size is <
1608    (480x320), increase it to at least that, as aven isn't usable in a smaller
1609    window.
1610
1611  + Remove crude bodge which tries to pick a nicer initial window size when
1612    using wxWidgets without wxDisplay on a multi-monitor setup - aven now opens
1613    with the same size window it had when it was closed, so the initial size is
1614    only relevant on the first ever run.
1615
1616* Assorted translation updates.  Notably Indonesian is at 100% again.
1617
1618* Stop trying to catch and report signals.  The only real reason to do it is so
1619  we can say "Bug in program detected! Please report this to the authors"
1620  before we exit, but when the program crashes that's pretty obvious.  In aven
1621  we try to pop up a message box for this message, which may fail due to
1622  whatever caused the signal, while with the command line tools there's no
1623  great benefit over just letting the shell report the signal.
1624
1625* Use pkg-config to probe for libav and proj, which sorts out the correct flags
1626  for building on OS X against a static install of libav.
1627
1628Changes in 1.2.18 (2015-06-03):
1629
1630* aven:
1631
1632  + Add support for reading terrain data (from a zip file containing either an
1633    SRTM .hgt file, or an ESRI .bil file and associated metadata files), and
1634    rendering it as a transparent surface.
1635
1636  + Remove actions from 'Orientation' and 'Rotation' menus which you wouldn't
1637    sanely want to perform from the menu.
1638
1639  + Create a "Colour by" submenu of the "View" menu to house the various
1640    colouring options.
1641
1642  + Add "Colour by Gradient" and "Colour by Length".
1643
1644  + Make the button to dismiss the "About" dialog "OK" rather than "Close",
1645    which seems more logical, and also allows the dialog to be closed by
1646    pressing "Escape".
1647
1648  + Destroy any existing clipping region before we write the page footer.
1649    Hopefully solves ticket #52, reported by Erin Lynch.
1650
1651  + Don't round bearing and tilt angles to integers when printing and
1652    exporting.
1653
1654  + Add passage export for EPS format.  (Partly addresses ticket #4)
1655
1656  + Add JSON export.  This should be regarded as experimental, and the format
1657    is quite likely to change.
1658
1659  + Pressing F6 now toggles the display of rendering stats, currently FPS
1660    (Frames Per Second) and the number of triangles in the terrain mesh.
1661
1662  + Add a menu item and toolbar button to show the cavern log window if the
1663    currently shown survey data was processed by aven.  Reported by Hugh St
1664    Lawrence in #47, and by Dave Clucas and others previously on the list.
1665
1666  + Add "Save Log" button to Aven's cavern log window.
1667
1668  + In cavern log window, highlight "error" markers in red and "warning"
1669    markers in orange.
1670
1671  + Rework code to read cavern's output.  In particular, we no longer mix
1672    buffered and non-buffered system calls.
1673
1674  + Aven's support for reading colours and font sizes for printouts from
1675    print.ini has never worked - the contents of the ini files are ignored due
1676    to a bug which has been there since the code was added in 2005 - but nobody
1677    has ever complained.  So just strip out that code entirely - we should
1678    support setting the colours and font sizes, but a GUI interface for setting
1679    them would be better.
1680
1681  + Fix to compile with a Unicode build of wxWidgets 2.8.  Reported by Bill
1682    Gee.
1683
1684  + Take the width of the messages used above the compass and clino into
1685    account when calculating how much space to allow for them - now the labels
1686    won't overlap or be cut off in translations where they are long.
1687
1688  + (Mac OS X version): Attempt to address the size of the toolbar icons.
1689
1690* cavern:
1691
1692  + Reject *fix with SDs which aren't all positive.  (fixes#2, reported by
1693    susscorfa).
1694
1695  + Use the currently set units when outputting measurements in warnings,
1696    errors, and the stats at the end of the run.  Requested by Bill Gee.
1697
1698  + Include column number when a *include file isn't found.
1699
1700  + Show 'error' in front of error messages, like we show 'warning' in front of
1701    warnings.  Fixes #48, reported by Wookey.
1702
1703  + Increase the threshold for warning that fore and back measurements differ
1704    from 2 SDs to 3 SDs.
1705
1706* findentrances: If the 3d file specifies the coordinate system, use it.
1707
1708* svxedit: Remove svxedit - while an editor with built-in knowledge of survex
1709  would be nice to have, svxedit doesn't really offer that, and it looks ugly
1710  in a modern desktop.
1711
1712* If we run out of memory while reading a processed survey data file, include
1713  the filename in the error message.
1714
1715* Many translation updates - notably Indonesian and Russian are now the two
1716  most complete translations.
1717
1718* (Microsoft Windows version): Add code page 1252 mappings for fancy quotes.
1719
1720* Transliterate gradient and infinity symbols if the current character set
1721  lacks them.
1722
1723* Add SVG version of .plt icon.
1724
1725* Manual:
1726
1727  + Add complete list of quantities you can set SDs for.  Thanks for Wookey for
1728    highlighting that the previous list was incomplete.
1729
1730  + Document averaging of a group of repeated readings.
1731
1732  + Add a link to the sample data from the manual.
1733
1734  + Remove references to contact addresses which are no longer there.  Remove
1735    offer to post people floppies, and references to a CD image which isn't
1736    available for download.
1737
1738* Remove non-breaking spaces from the diffpos and extend manual pages, as they
1739  actually make the output formatting worse (presumably these used to work
1740  around a since-fixed bug in one of the docbook processing tools).
1741
1742* doc/TODO.htm: Update.
1743
1744* Fix to compile without warnings with 'g++ --std=gnu++11'.
1745
1746Changes in 1.2.17 (2015-02-24):
1747
1748* MacOS X version:
1749
1750  + Update INSTALL file with current status.
1751
1752  + Aven.app now has a custom icon.
1753
1754  + Add icons for all the filetypes supported.
1755
1756  + Add Finder actions for .svx, .3d, .plt and .pos files.
1757
1758  + aven: Hide the status bar and tool bar in Full Screen mode, as wx doesn't
1759    currently do this for us.
1760
1761  + aven: Fix short-cut for toggling Full Screen mode.
1762
1763  + aven: Make "About" menu item appear.
1764
1765  + aven: Fix "Close" button in about dialog.
1766
1767  + aven: Make custom cursors black with a white outline to match the standard
1768    OS X cursor.
1769
1770  + svxedit: Now wrapped up in an application bundle as svxedit.app.  It
1771    still doesn't really work like a standard app though - e.g. you can't load
1772    files from Finder (instead run svxedit.app and use File->Open), the font
1773    size of most menu items is wrong, the icon for the app is the wish icon
1774    rather than the svxedit icon, shortcuts use Ctrl not the Cmd key, and
1775    probably more.  I'd probably recommend using another editor (OS X comes
1776    with TextEdit.app for example).
1777
1778  + The documentation is now in a "Docs" directory alongside the apps, rather
1779    than in the rather less obvious "share/doc/survex" directory.
1780
1781  + Default to building for x86_64, since all modern Macs are 64 bit.
1782
1783  + Disable use of liblzma when building wxWidgets for OS X, which was
1784    preventing the build from working on OS X 10.6.8.
1785
1786  + Download wx sources from SF via redirecting link.  Thanks to David A.
1787    Riggs.
1788
1789  + buildmacosx.sh: Handle the mount point for the disk image containing a
1790    space.
1791
1792  + Link with a static build of PROJ for doing coordinate system conversions.
1793
1794  + Build wx with --disable-webview to avoid a compilation failure on OS X
1795    10.10.1.
1796
1797  + Use wx-config --cc and --cxx to get the compilers to use for building
1798    everything else, as wx adds options to them which otherwise cause linking
1799    errors.
1800
1801  + The diskimage (.dmg) file is now compressed with bzip2, which gives a
1802    smaller download.  This means OS X 10.4 is required, but we probably
1803    already need at least 10.5 because that's the minimum version which the
1804    wxWidgets build supports by default.
1805
1806  + Remove unused files and copies of files from the diskimage.
1807
1808* cavern: If the same leg is repeated consecutively, average the readings and
1809  treat as a single leg.
1810
1811* dump3d: Report SEPARATOR used by the file being read.
1812
1813* aven.svg: Fix visual glitch in SVG icon for aven.  Noted by David A. Riggs.
1814
1815* aven:
1816
1817  + Greatly reduce flicker when mouse is moved to the top of the screen in full
1818    screen mode and the menu bar reappears.
1819
1820  + For export formats where scaling is supporting, aven now actually uses the
1821    scale specified in the export dialog (previously it ignored this and used
1822    1:500).
1823
1824  + Reimplement animation so that it's based on angular change per unit of
1825    elapsed time, rather than averaging the time take for the last two scene
1826    redraws.  This gives smoother animation in the face of variable load and
1827    scene redraw time, and should be more consistent between platforms.
1828
1829  + Switching to a point of the compass during auto-rotation now jumps straight
1830    there rather than the two animations fighting.
1831
1832  + Reduce the maximum auto-rotation speed, as the previous limit was uselessly
1833    fast.
1834
1835  + Disable stepping the rotation angle when animating (previously we only did
1836    when rotating).
1837
1838  + Speed up start-up a bit - rather than loading icons from individual PNG
1839    files on disk, compile them into the aven binary.
1840
1841* (Unix version): Add "MimeType" field to desktop files so that file
1842  associations work out of the box with modern desktop environments.
1843
1844* Add start of Hungarian translation from Imre Balogh.
1845
1846* Merge in many updates to the Russian translation from "vsuhachev".
1847
1848* Assorted minor updates to other translations.
1849
1850* Create scalable (SVG) versions of file type icons.
1851
1852* doc/manual.sgml: Remove $Id and $Date markers, as they don't get expanded now
1853  we're using git.
1854
1855* tests/: Improve test coverage in a few places:
1856
1857  + Extend tests of fore and back sights to test calibration of the back
1858    compass.
1859
1860  + Test "Can't calibrate angular and length quantities together" error.
1861
1862  + Check that "*set names ." works when "." is also the decimal point.
1863
1864Changes in 1.2.16 (2014-10-17):
1865
1866* aven: Add KML export (stations only currently).
1867
1868* aven: Allow measuring line to measure from anonymous stations.  (Fixes #44)
1869
1870* aven: Fix corrupted names in exported files.
1871
1872* aven: Fix error log window under wxWidgets >= 2.9 to include the system
1873  information before the first log message like it does under wxWidgets 2.8.
1874
1875* cavern: Add support for "*cs JTSK" and "*cs JTSK03".
1876
1877* tests/: Improve test coverage.
1878
1879* Translation updates for many languages, plus the start of translations to
1880  Greek and Polish.
1881
1882* Fix to build against wxWidgets 3.0 built with assertions disabled.  Reported
1883  by Martin Sluka.
1884
1885* Fix warnings when compiling with clang (which is the default compiler on
1886  Mac OS X).  Reported by Martin Sluka.
1887
1888Changes in 1.2.15 (2014-08-14):
1889
1890* cavern: The *cs command now also supports "long-lat", "s-merc" (for "Web
1891  Mercator"), EPSG and ESRI codes, "eur79z30", "ijtsk" and "ijtsk03".  This
1892  means that we now support all the coordinates systems which Therion does,
1893  except for a few which don't have X=East and Y=North.  The documentation
1894  for *cs has also been improved.
1895
1896* aven: We no longer persist full screen mode between runs - it's not a
1897  standard behaviour of desktop programs, and it's too easy to go into full
1898  screen mode from the menu and then not be able to get out again because you
1899  don't know the required key shortcut. (ticket#39)
1900
1901* aven: When in full screen mode, moving the mouse to the top of the screen now
1902  makes the menu bar appear.  This provides a non-shortcut way out of full
1903  screen mode, as well as making it easier to perform other operations while in
1904  full screen mode.  The current implementation gives an annoyingly flickery
1905  transition, but hopefully we can improve this in future. (ticket#39)
1906
1907* (MacOS X version): If built with wxWidgets >= 3.1.0 (which is still in
1908  development), we now call EnableFullScreenView() which improves the full
1909  screen mode experience on OS X 10.7 and later.
1910
1911* img library: Improve documentation for img_ERROR_INFO.
1912
1913* tests/: Ship some missing .out files and compare.tst.
1914
1915* tests/: cavern.tst testcase back2 is now actually used.  Fix a bug in this
1916  testcase, and extend it to cover a variant of the situation reported as a bug
1917  in therion by Bill Gee to the therion list.
1918
1919* (Linux version) survex.spec: Add run-time requirement on proj and proj-epsg
1920  for the survex package and on tk for the svxedit package.
1921
1922Changes in 1.2.14 (2014-07-05):
1923
1924* img library: Add ability to store a PROJ4 string describing the coordinate
1925  system in use in 3d v8 files.
1926
1927* aven: If the 3d file specifies a coordinate system, then use it for exporting
1928  to formats which need to know (currently GPX).  If the input file doesn't
1929  specify the coordinate system, allow the user to enter a PROJ4 string in the
1930  export dialog.
1931
1932* aven: You can now quickly zoom to a particular area by holding down the
1933  "Shift" key and dragging with the left mouse button to create a rectangular
1934  "rubber band box" around the area you wish to zoom to.  If you release the
1935  "Shift" key while still dragging, the box is centred on the start point
1936  rather than having one corner there.
1937
1938* aven: Fix exporting of passage tubes in elevations and extended elevations
1939  - previously up and down were getting drawn across the page!
1940
1941* aven: Fix "Cancel" to work on the print/export dialog, broken by changes in
1942  1.2.13.  (Reported by Brian Clipstone)
1943
1944* aven: Fix the conditions on which the menu item "Cancel measuring line" is
1945  enabled - previously it was hard to actually cancel it via the menu.
1946  Reported by Hugh St Lawrence.
1947
1948* aven: Fix wx assertion failures when showing hit test debug view on platforms
1949  such as 64-bit Linux.
1950
1951* aven: When viewing from above, show "Plan" above the "clino" which indicates
1952  the tilt angle (instead of "Elevation -90°").
1953
1954* aven: The extended font data now loads faster, and also uses less memory on
1955  64-bit platforms.
1956
1957* aven: Dragging the vertical divider between the side panel and the 3D view
1958  now only updates when you finish the drag, as redrawing continuously just
1959  looks clunky except on an ultra-fast machine.
1960
1961* aven: (German translation) Abbreviate "Blickrichtung" so it doesn't overfill
1962  the space available in the aven UI.
1963
1964* cavern: Add a *cs command to allow setting the coordinate system for *fix
1965  commands, and the coordinate system used for processed survey data.  The
1966  latter is now stored in 3d v8 format files.
1967
1968* cavern: Add support for 'L' flag (exclude from length) in Compass .dat files
1969  and handle it in the same way as the "DUPLICATE" flag in .svx files.
1970
1971* cavern: If there's more than one *fix command with coordinates, still
1972  actually fix the second and subsequent ones, to avoid triggering bogus errors
1973  about unconnected surveys.
1974
1975* cavern: If there's more than one *fix command with coordinates, report the
1976  station name of the previous one, plus the file and line number where it was.
1977
1978* cavern: Fix handling of the rather contrived case of *fix with no coordinates
1979  followed by *solve and then another *fix with no coordinates not to access
1980  freed memory.
1981
1982* dump3d: Report any specified coordinate system.
1983
1984* doc/3dformat.htm: Update to document how the coordinate system is stored.
1985
1986* (Microsoft Windows version): Include dump3d in the installer.
1987
1988* Fix a compiler warning.
1989
1990* Improve test coverage.
1991
1992Changes in 1.2.13 (2014-05-15):
1993
1994* aven: Fix --print option to wait for printing to happen before exiting
1995  (previously it would exit right after opening the print dialog, so you
1996  couldn't actually print anything out using it).
1997
1998* aven: Increase the threshold for how close the pointer needs to be to a
1999  station from 5 pixels to 7 to try to help touchscreen users.  Reported by
2000  Hugh St Lawrence.
2001
2002* aven: Add "fat finger" mode, toggled by pressing F2, to allow investigating
2003  if increasing the minimum pointer to station threshold helps Hugh's problems
2004  with using aven on a touch screen device.
2005
2006* aven: The measuring line was unable to see stations which had just been
2007  revealed by toggling surface or underground legs on - this is now fixed.
2008
2009* aven: Add "hit test grid debug" mode, which shows the hit test grid and how
2010  many entries are in each box (toggled by F3).
2011
2012* aven: Pressing F4 now allows the user to toggle wxWidgets assertion messages
2013  off and back on.
2014
2015* aven: Create the empty hit-test grid data structure lazily, to reduce start
2016  up time a little.
2017
2018* cavern: Improve messages which talk about "tags" and/or "prefixes" in *begin
2019  and *end commands to instead talk about "survey names".
2020
2021* cavern: For ages cavern has warned if you reentered a survey, but this
2022  warning was suppressed if it occurred at the same line of the same file as
2023  the survey was first entered, but this can only happen if you include the
2024  same survey file more than once, which isn't a sensible thing to do for a
2025  file with actual survey data in (you might reasonably do it to set up survey
2026  grade details or something like that).  The warning is now given in this
2027  situation too.
2028
2029* cavern: After 5 warnings about reentering a survey we give up warning about
2030  it, but we used to keep reporting where the survey was originally entered -
2031  this secondary diagnostic message is now silenced when the main message is.
2032
2033* (Microsoft Windows version): Compile C code with optimisation on.
2034
2035* Add the start of a Russian translation, with messages take from therion.
2036
2037* Minor translation updates to French.
2038
2039* Fix compiler warning from GCC.
2040
2041* Testsuite improvements:
2042
2043  + Test that "..." anon station works.
2044
2045  + cavern.tst: Check number of errors returned by all testcases which should
2046    fail and give an error count.
2047
2048  + cavern.tst: Fix to actually fully test everything when builddir != srcdir.
2049
2050Changes in 1.2.12 (2014-04-14):
2051
2052* aven: Fix measuring line to show change in altitude rather than altitude
2053  itself (accidentally broken by changes in 1.2.11).  Reported by Brian
2054  Clipstone.
2055
2056* aven: Fix printing when built with wxWidgets 3.0.
2057
2058* aven: Several visual improvements to printouts:
2059
2060  + Move the numbers below the scale bar down a little so that they don't
2061    overlap the scale bar ticks.
2062
2063  + Set the clipping region after we draw the page border and info box to avoid
2064    clipping the border in print preview.
2065
2066  + Tidy up the appearance of the compass and elevation arrow.
2067
2068* aven: Fix to build with libav 10.  Reported by Moritz Muehlenhoff in
2069  <http://bugs.debian.org/739332>.
2070
2071* aven: Fix to build with older libav where avcodec_free_frame() isn't
2072  available.
2073
2074* (Linux version) survex.spec: Update spec file used for building RPM packages.
2075
2076* (Unix version): Add "Keywords:" entry to .desktop files.
2077
2078* (Unix version): Enable large file support, mostly to support filing systems
2079  which return 64 bit inode values, such as CIFS mounts.
2080
2081* (Microsoft Windows version): Only allow "A-Z" or "a-z" for driver letters,
2082  rather than any character which is a letter in the current locale.
2083
2084* Various translation updates.
2085
2086Changes in 1.2.11 (2014-01-28):
2087
2088* aven: Fix wxWidgets assertion when double clicking on an anonymous station.
2089  Reported by Kevin Dixon.
2090
2091* aven: Embed the font data for the first 256 Unicode characters for use in the
2092  survey pane into the compiled aven binary to reduce start up overhead.  Any
2093  additional characters needed are loaded from a data file only if/when a
2094  character >= U+100 is actually needed (as before).
2095
2096* aven: Fix display of Unicode characters above 256 when there's a character
2097  <= 256 earlier in the same string.
2098
2099* aven: Use the actual width of Unicode characters above 256 rather than
2100  assuming they are 16 pixels wide.
2101
2102* aven: If full screen, don't show the side panel when a new file is opened
2103  (e.g. via Ctrl+O).
2104
2105* aven: Don't give an assertion failure when showing passages for a cave with
2106  no vertical extent.  Reported by Jonny Prouty.
2107
2108* aven: Change terminology in print dialog - say "legend" instead of "info
2109  box".
2110
2111* aven: Add option to show the tilt angle as a percentage gradient.
2112
2113* aven: Show the units (degrees, grads, or percent) for the tilt and bearing
2114  indicators.
2115
2116* aven: All length units are now translatable.
2117
2118* aven: Split log_fl_error helper function out of CHECK_GL_ERROR macro, which
2119  will reduce code size and also the number of deprecation warnings about
2120  gluErrorString on Mac OS X 10.9.
2121
2122* (Microsoft Windows version): aven: Try to work around redraw issues related
2123  to the measuring line by redrawing the whole window, which doesn't seem to be
2124  measurably slower.
2125
2126* cavern: If *units is used to try to set units for LEVEL, PLUMB, or POSITION,
2127  give an error rather than quietly ignoring the attempt.
2128
2129* cad3d: Make cad3d remap control characters and spaces in station names when
2130  generating PLT output in the same way aven does.
2131
2132* Various translation updates (particular thanks to Eric Madelaine and Dennis
2133  Baudys), including the start of a Bulgarian translation, with messages taken
2134  from Therion and elsewhere.
2135
2136* (Microsoft Windows version): On Microsoft Windows 2000 and newer, use
2137  GetUserDefaultUILanguage() to get the UI language to use.  For older
2138  versions, continue to use GetUserDefaultLCID().
2139
2140* (Microsoft Windows version): The Indonesian translation will now be used
2141  automatically when the system language is set to Indonesian.
2142
2143* (Mac OS X version): Fix to build with wx 3.0.0 on OS X 10.9.  Thanks to David
2144  A. Riggs for his work on this.
2145
2146* (Mac OS X version): Update buildmacosx.sh script to use wx 3.0.0, and add a
2147  checksum check for the downloaded wx sources.
2148
2149* Fix a lot of the compiler warnings when building with clang.
2150
2151* doc/manual.sgml: Add missing quantities to the list documented as accepted by
2152  *units: LEFT, RIGHT, UP/CEILING, DOWN/FLOOR (missing entirely);
2153  BACKCOMPASS/BACKBEARING, BACKCLINO/BACKGRADIENT (missing from the main list,
2154  mentioned in list of the units that can be set for them); COUNT (missing
2155  alternative name for COUNTER); DX/EASTING, DY/NORTHING, DZ/ALTITUDE
2156  (incorrectly listed as X, Y, Z).  Reported by Jonny Prouty.
2157
2158* Test suite: Improve test coverage for cavern.
2159
2160Changes in 1.2.10 (2014-01-15):
2161
2162* aven: Fix assertion if two mouse buttons are held down at the same time.
2163  If dragging with more than one mouse button held down, releasing one causes
2164  another which is still held down to take effect.  Reported by Brian
2165  Clipstone.
2166
2167* aven: If we fail to start the external editor when the user clicks on an
2168  error or warning from cavern, show an error box.
2169
2170* aven: If the survey has a title, add it as a top-level <title> element to
2171  exported SVG files.
2172
2173* aven: Escape '<', '>', and '&' in labels in exported SVG files.
2174
2175* aven: In GPX export, set the <time> element to the datestamp from the 3d
2176  file.
2177
2178* aven: Don't try to write the title if it isn't set or is empty when exporting
2179  GPX files.
2180
2181* aven: Don't bother looking up the printer page setup info when exporting.
2182
2183* (Microsoft Windows version): aven: Fix crash on "File->Print" or
2184  "File->Export" under Windows XP, reported by Brian Clipstone.
2185
2186* (Microsoft Windows version): aven: Fix error dialog about an incorrectly
2187  encoded filename which could occur if run without being asked to load a file
2188  on startup.
2189
2190* (Microsoft Windows version): aven: Compile with optimisation on.
2191
2192* img library, aven: Although processed CMAP data files are often referred to
2193  as "CMAP .XYZ files", it seems that actually, the extension .XYZ isn't used,
2194  rather .SHT (shot variant, produced by CMAP v16 and later), .UNA (unadjusted)
2195  and .ADJ (adjusted) extensions are.  Since we've long checked for .XYZ, we
2196  continue to do so in case anyone is relying on it, but also check for the
2197  other extensions.
2198
2199* img library: Add new "datestamp_numeric" field to struct img giving the
2200  datestamp as a time_t in UTC (or (time_t)-1 if there's no datestamp or we
2201  failed to convert it).  For .3d >= v8, this field is reliable.  We attempt to
2202  convert date strings in .3d <= v7 and CMAP XYZ files, but may get the
2203  timezone wrong.
2204
2205* img library: Fix my_strcasecmp() to handle top-bit set characters better.
2206
2207* cavern: Fix NULL pointer dereference when processing Compass DAT file without
2208  'SURVEY DATE:'.
2209
2210* doc/manual.sgml: Update references to Survex 1.1 which should be to 1.2.
2211
2212* doc/manual.sgml: Note the station length limit Smaps used.
2213
2214* Fix some compiler warnings if built with glibc's fortify source feature
2215  enabled.
2216
2217Changes in 1.2.9 (2014-01-08):
2218
2219* Document --3d-version in cavern man page and the manual.
2220
2221* aven: Fix compilation error in movie export code with recent libavi.
2222
2223* aven: Fix warning on stderr when export a movie as MPEG.
2224
2225* img library: In non-hosted mode, don't define GETC and PUTC if they're
2226  already defined, to allow easy overriding with getc_unlocked() and
2227  putc_unlocked() (which are significantly faster on Linux).
2228
2229* img library: In non-hosted mode, check that int is at least 32 bits,
2230  and if not, use long.  In practice, platforms with 16 bit int are mostly
2231  obsolete, but it's not hard to be portable here.
2232
2233* img library: Add test that img.c and img.h compile in non-hosted mode
2234  (regression test for issue fixed in 1.2.8).
2235
2236* (Microsoft Windows version): aven is now built with wxWidgets 3.0.0.
2237
2238* Update translations from launchpad and from existing similar messages.
2239
2240* Fix some compiler warnings.
2241
2242Changes in 1.2.8 (2013-10-29):
2243
2244* cavern: Fix handling of anonymous wall stations ('..' by default) to
2245  implicitly set the SPLAY leg flag, as was intended.  Reported by Thomas
2246  Holder.
2247
2248* cavern: Tweak .err file output not to lose the space in front of certain
2249  statistics when the value gets large.
2250
2251* cavern: Eliminate redundant progress message when solving simultaneous
2252  equations.
2253
2254* aven: Add a format drop down to the export dialog, and only show fields which
2255  are meaningful and supported for the currently selected export format.  The
2256  format defaults to that used most recently.  The "Elements" and "View" boxes
2257  have been swapped in the print and export dialogs as that layout works much
2258  better when the "View" box is hidden.
2259
2260* aven: Changing checkboxes in the print or export dialog didn't work in 1.2.7
2261  - now works again.  Reported by Anthony Day.
2262
2263* aven: Add GPX export (based on findentrances patch from Olaf Kähler).  In
2264  this release the projection which the survey coordinates are in defaults
2265  to the BMN M31 grid used in the Totes Gebirge in Austria.  On Unix, you
2266  can edit ~/.aven and add a new line setting 'input_projection' to a PROJ
2267  projection string.  The ability to specify this projection in a better
2268  way is coming soon.
2269
2270* aven: New export options "Origin in centre" and "Full coordinates" - the
2271  latter fixes #10.  GPX and PLT output implicitly force "full coordinates".
2272
2273* aven: The "Sketch" vector drawing program got renamed to "Skencil" some
2274  time ago, so update references.
2275
2276* aven: Make the Presentation->Play menu item a checkbox, to avoid a warning
2277  with wxMSW 2.9.5.  Reported by Brian Clipstone.
2278
2279* aven: Make right click in an empty presentation mark the current position and
2280  open it to edit, instead of crashing.
2281
2282* aven: Update movie export code to work with latest libav API.  Reported by
2283  Sebastian Ramacher.
2284
2285* aven: Improve reporting of errors during the process of exporting a movie.
2286
2287* aven: Don't try to close the movie if we aren't producing one.
2288
2289* aven: Fix assertion failure when double-clicking on the survey with wx2.9.
2290
2291* aven: Fix to build with wxMSW 2.9.5.
2292
2293* aven: Fix to build with wx 2.9.5 with wx2.8 compatibility disabled.
2294
2295* cad3d: The "Sketch" vector drawing program got renamed to "Skencil" some time
2296  ago, so add a new --skencil option to specify this output format.  The old
2297  name (--sketch) is still recognised for compatibility.
2298
2299* cad3d: Make --marker-size work for Skencil and SVG output.
2300
2301* dump3d: Make --show-dates option show dates for XSECT.
2302
2303* img library:
2304
2305  + Fix to work once more when used outside of Survex (missing definition of
2306    max() macro and a bad call to free() in img_close() for a file opened for
2307    reading).
2308
2309  + Use lround() instead of round(), and make the tests around whether we use
2310    the library function or the our fallback implementation saner.
2311
2312  + Fix // comments in C code for portability to pre-C99 compilers which don't
2313    support these as an extension.
2314
2315  + Can now be compiled as C++ as well as as C.
2316
2317* (Microsoft Windows version): The installer is now built with a newer version
2318  of Innosetup, and includes translations for all the languages which Survex
2319  itself has any translations for.
2320
2321* (Microsoft Windows version): aven is now built with wxWidgets 2.9.5.
2322
2323* Minor translation updates.
2324
2325* tests/Makefile.am: Distribute files for "normal_bad" testcase.
2326
2327Changes in 1.2.7 (2013-07-27):
2328
2329* Add support for anonymous stations, which are indicated by one, two or three
2330  separator characters - with the default separator of '.', that means '.',
2331  '..', and '...' are anonymous stations.  Single separator ('.' by default)
2332  is an anonymous non-wall point, double separator ('..' by default)
2333  is an anonymous wall point at the end of an implicit splay), and triple
2334  separator ('...' by default) is an anonymous point (with nothing special about
2335  the leg).  A new *alias command allows '-' to be mapped to '..' for
2336  compatibility with pocket topo: *alias station - ..
2337
2338* New version 8 of the 3d format:
2339
2340  + Supports new flags img_SFLAG_ANON and img_SFLAG_WALL.
2341
2342  + New explicit file-wide flag for 'this is an extended elevation', rather
2343    than modifying the survey title to indicate this.
2344
2345  + The survey prefix is often unchanged from one leg to the next, so use a
2346    spare flag to compactly indicate when there's no label change.
2347
2348  + The data style of each leg is now stored.
2349
2350  + The "processed at" time is stored as seconds since 1970 rather than a
2351    human-readable string.
2352
2353  + Since 3d v8 features significant changes to the format, the format
2354    documentation for v7 and earlier has been split off into 3dformat-old.htm.
2355
2356* img library:
2357
2358  + New station flags img_SFLAG_ANON and img_SFLAG_WALL.
2359
2360  + Handle .pos files containing unnamed stations - don't suck the next line in
2361    as the station name, and set img_SFLAG_ANON for them.
2362
2363  + Repurpose the long unused fBinary parameter to img_open_write() as a flags
2364    parameter, and add img_FFLAG_EXTENDED to specify that this is an extended
2365    elevation, in place of appending " (extended)" to the title.  Internally we
2366    still append this to the title (and remove it upon reading) when writing
2367    3d v7 or earlier, but for the new 3d v8 format, this flag is stored
2368    explicitly in the file.
2369
2370  + img.h: Add comments for the lists of "Leg flags" and "Station flags".
2371
2372* aven:
2373
2374  + We now require at least wxWidgets 2.8.0 - it was released over 6 years ago
2375    now, and the wx developers consider even 2.8 to be rather long in the
2376    tooth.  We stopped testing building with wxWidgets 2.6 some time ago, and
2377    formally dropping support for older versions allows a number of workarounds
2378    to be removed from the aven source code.  Also, features deprecated in
2379    wxWidgets 2.9 are no longer used in our code.
2380
2381  + Don't run incremental search on every key-press, as on a slow machine the
2382    short initial search(es) will take a while but not be useful.  Instead only
2383    actually run the search when we're told there are no more key-presses
2384    queued up.
2385
2386  + Implement support for including cross-section information in exported SVG
2387    and DXF files (ticket#4).  The DXF export is untested currently.
2388
2389  + Show splay legs faded by default, with menu options to hide them or show
2390    them like other legs.
2391
2392  + Speed up loading a .3d file with cross-sections by using a map to convert
2393    station names to positions.
2394
2395  + In the cavern log window, don't highlight a file:linenumber if there's no
2396    message after it, which avoids highlighting the "Included from" lines
2397    wrongly.
2398
2399  + Fix not to crash when trying to report an error while starting up.
2400
2401  + (MacOS X version): Change the menu shortcut for "Full Screen Mode" to be
2402    the OS X standard shortcut Shift-Command-F (previously we used F11, but
2403    that's used by the desktop).
2404
2405  + Add checks for errors when reading the font file.
2406
2407  + Remove useless extra quoting when invoking vim to show the location of an
2408    error from cavern.
2409
2410  + Include GL/gl.h before GL/glext.h (needed on Debian wheezy).
2411
2412  + Use wxValidator to simplify keeping svxPrintDlg member variables and fields
2413    in the dialog in sync.
2414
2415* cavern:
2416
2417  + Demote errors about invalid dates to warnings, since we've accepted *date
2418    for ages without any checks on the value, and so existing datasets
2419    probably contain invalid dates and dates in other formats.  (ticket#19)
2420
2421  + New *alias command allows '-' to be mapped to '..' for compatibility with
2422    pocket topo: *alias station - ..
2423
2424  + We want to warn if there's a clino reading which it would be impossible to
2425    have read from the instrument (e.g. on a -90 to 90 degree scale you can't
2426    read "93" (it's probably a typo e.g. for "39").  However, the gradient
2427    reading from a topofil is typically in the range 0 to 180, with 90 being
2428    horizontal.  Really we should allow the valid range to be explicitly
2429    specified, but for now we infer it from the zero error - if this is within
2430    45 degrees of 90 then we assume the instrument can read between 0 and 180
2431    degrees.
2432
2433  + If the survey isn't all connected, still run survey tree checks and report
2434    errors and/or warnings which might suggest typo locations.  Thanks to Kevin
2435    Dixon for the report which highlighted this issue.
2436
2437  + Report a warning if *begin SURVEY has a separator character in SURVEY.
2438
2439  + Report column numbers as well as line numbers for some cavern errors and
2440    warnings.
2441
2442  + Adjust width of node stats table to fit longest count when there are more
2443    than 9999 of a particular order of node.
2444
2445  + If the argument to *include has an opening double quote but the closing
2446    double quote is missing, then skip trying to open the file.
2447
2448  + Move "Station X referred to just once" warning after non-existent survey
2449    check - if both fire, the non-existent survey error is likely to be more
2450    relevant.
2451
2452  + We no longer follow an error for a bad reading in passage data with a bogus
2453    "End of line not blank" error, but instead check the remaining readings on
2454    the same line.
2455
2456  + We no longer follow an error about OMIT for a required reading with a bogus
2457    "End of line not blank" error.
2458
2459  + Report an error if the scale factor in *calibrate is zero - it doesn't make
2460    sense and probably means someone reversed the arguments to *calibrate.
2461
2462  + Report the parent include files starting from the outermost, as that's more
2463    logical when there are multiple levels involved.
2464
2465  + If we were expecting a numeric field and instead get something which starts
2466    with '+', '-', or '.' but which isn't a number, then fix the error to
2467    include that character in the token reported.
2468
2469  + Simplify handling of quantity lists to only recognise 'DEFAULT' as the
2470    first item.
2471
2472* cad3d: Check for errors from img_rewind() and report them.
2473
2474* dump3d:
2475
2476  + Build, install and package dump3d as standard - it's useful for grabbing
2477    info from 3d files in scripts.
2478
2479  + Add --show-dates option.
2480
2481  + Show only 2 decimal places on coordinates and passage dimensions.
2482
2483  + Report the data style of legs.
2484
2485  + Report if the file is an extended elevation.
2486
2487  + Report img_STOP as STOP rather than CODE_0xffffffff.
2488
2489* Test suite:
2490
2491  + cavern.tst: Fix equatenosuchstn testcase (added in 1.2.6) to normalise the
2492    expected output so it passes reliably.
2493
2494  + cavern.tst: Run diffpos <expected> <actual> so the reports of 'Added' and
2495    'Deleted' stations upon failure are the more natural way round.
2496
2497  + Add more testcases, expand some existing testcases, and add expected output
2498    for more.
2499
2500* (Microsoft Windows version): Use wx-config's --cc and --cxx flags to find the
2501  appropriate C and C++ compilers to use, and link mingw build statically to
2502  avoid needing the libgcc DLL (which newer GCC seems to have by default).
2503
2504* (Unix version): When determining the character set for command-line tools,
2505  check environmental variable LANG after LC_ALL and LC_CTYPE.
2506
2507* When determining the language, check environmental variable LC_ALL before
2508  LC_MESSAGES and LANG (but after SURVEXLANG).
2509
2510* If we don't find the message file, only give an error if it was specified
2511  with SURVEXLANG, since that is an explicit instruction to Survex, whereas
2512  LANG, LC_ALL and LC_MESSAGES are essentially system "preferred locale"
2513  settings.
2514
2515* There are a handful of hard-coded English message strings for reporting
2516  errors trying loading message files, etc.  These are all now ASCII, as if we
2517  fail trying to open a message file, it's more likely the encoding isn't
2518  set correctly.
2519
2520* Prune strings we are no longer using and are probably unlikely to use again
2521  into a new file po_codes_dead, so that translators don't get presented with
2522  them to translate.
2523
2524* Merge lots of translation updates.  Most translations are now complete or
2525  close to complete.
2526
2527* Add start of Indonesian translation from Arief Setiadi Wibowo.
2528
2529* Fix various compiler warnings when building from source.
2530
2531* Include scripts gdtconvert and gen_img2aven in the source distribution.
2532
2533Changes in 1.2.6 (2012-02-23):
2534
2535* (Mac OS X version): Fix so that cavern finds its messages when run by aven.
2536
2537* (Microsoft Windows version): Include JPEG images for aven in the installer
2538  package (ticket#35).
2539
2540* cavern: If we have a reference to a station in a non-existent survey, give a
2541  helpful error rather than saying the station hasn't been exported from the
2542  survey.  (Bug reported by Martin Green via email)
2543
2544* aven: Fix to build with a non-Unicode wxWidgets library.  Patch from Olaf
2545  Kahler.
2546
2547* findentrances: Add findentrances utility from Olaf Kahler which produces a
2548  .gpx file with waypoints for entrances.  This needs libproj so is disabled
2549  by default for this release - to enable it install the development stuff for
2550  libproj and build survex with:
2551
2552      make FINDENTRANCES=findentrances
2553      make install FINDENTRANCES=findentrances
2554
2555* dump3d: Add support for showing img_ERROR_INFO items.
2556
2557* doc/3dformat.htm: Merge in some improvements from Mike McCombe.
2558
2559* Incorporate a French translation from launchpad I'd previously copied the
2560  English version of by mistake.  Attempt to correct mistranslation of "survey
2561  file".
2562
2563Changes in 1.2.5 (2012-01-03):
2564
2565* aven:
2566
2567  + The survey tree in the left panel is now in sorted order once more.
2568
2569  + No longer fails with an assertion if used for a long time (we were leaking
2570    an OpenGL list each time one had to be regenerated).
2571
2572  + Now builds with newer FFmpeg library.
2573
2574  + Draw measuring line in front of the indicators rather than behind them.
2575
2576  + Loading a new file (or reloading the current one) no longer invalidates
2577    the OpenGL lists for the compass and clino, so will be a fraction faster.
2578
2579* Improve handling of attempts to look up translated messages before the
2580  message subsystem is fully initialised (which only happens if there's an
2581  error early on).
2582
2583* Improve the survex(7) man page text, and fix it to be marked as section 7 in
2584  the man page source as well as in the filename.
2585
2586Changes in 1.2.4 (2012-01-01):
2587
2588* aven:
2589
2590  + A change in 1.2.3 meant that aven tried to use OpenGL before it was
2591    initialised, which doesn't cause problems in some machines, but causes aven
2592    to abort on others.  This is now fixed, and there's a check in place to
2593    help avoid similar issues in future. (ticket#34)
2594
2595  + Always use metres or feet for the depth colour key, and chose a consistent
2596    precision by looking at the depth range. (ticket#30)
2597
2598  + Show the depth units below the colour bar rather than after every value.
2599
2600  + When zooming way in, stay in metres rather than switching to cm.
2601
2602  + On the scale bar, say “1 mile” rather than “1 miles”.
2603
2604* Translation updates for Catalan, French and Slovak.
2605
2606Changes in 1.2.3 (2011-12-31):
2607
2608* Fix to build with wxWidgets 2.9.2.
2609
2610* (Mac OS X version):
2611
2612  + Processing .svx files from aven now works.
2613
2614  + Remove spurious blank lines from the licence text in "Get Info".
2615
2616  + Don't create the help menu at all, as it is empty (because the "About"
2617    entry goes elsewhere) and sometimes seems to appear in the UI.
2618
2619  + INSTALL.OSX: Update to reflect current status.
2620
2621* aven:
2622
2623  + Fix Y coordinates of surface surveys on printouts.  (Closes #32)
2624
2625  + Improvements to text plotted on the survey pane:
2626
2627    - Support plotting Unicode character points > 256 by lazily loading the
2628      data for them from the font file and plotting them with a direct call to
2629      glBitmap(), which is slower but doesn't require a display list per
2630      character.
2631
2632    - Adjust the spacing from fixed width to putting a one pixel gap either
2633      side of each one character (so two between adjacent glyphs).  Mostly this
2634      reduces the horizontal width, but it adds a pixel for characters like "m"
2635      and two in a few cases.
2636
2637    - Fix .pixelfont file generation to correctly handle characters wider than
2638      8 pixels.
2639
2640  + Fix expected cross shape so don't always reject using texture mapping to
2641    draw crosses.
2642
2643  + As we read a survey file, eliminate tubes consisting of zero XSECTs as well
2644    as those consisting of just one.  Previously we would trip over the empty
2645    tube later.  Such tubes can for example be created by extend if a splay shot
2646    is the start or end of a tube.
2647
2648  + Make the green colour used for entrances in the survey tree the same
2649    (slightly darker than before) green used for the entrance blobs.
2650
2651  + Report the version of the library we're actually running with if built
2652    against wx >= 2.9.2.  Make it clear that the version reported is the
2653    version *built* with for wx < 2.9.2.
2654
2655* extend:
2656
2657  + Copy the end markers for passage tubes.
2658
2659  + Preserve left and right data for tubes (previously they were set to -1.0
2660    which means "no info").
2661
2662* img library: Fix incorrect comment in img.h which claimed that img_XFLAG_END
2663  was no longer used - it certainly is!
2664
2665* Use curly double quotes instead of "`" and "'" to quote filenames, etc in
2666  messages, and curly single right quote instead of straight ASCII apostrophe.
2667  Fall back to using straight ASCII versions if we can't represent them in the
2668  current character set.
2669
2670* Translation updates for Catalan, French, Slovak and Spanish.
2671
2672* Test suite:
2673
2674  + Add test coverage for interleaved diving data.
2675
2676  + Add testcase for diving data with topofil-style distance.
2677
2678Changes in 1.2.2 (2011-10-06):
2679
2680* aven:
2681
2682  + Replace the textured-mapped font drawing with an approach based on
2683    glBitmap.  This doesn't suffer from the character alignment issues which
2684    the textured-mapped fonts had, and is actually significantly faster on some
2685    machines.  The current font used is (mostly) fixed-width, but this isn't an
2686    inherent limitation - it was just the easiest font data to convert to a
2687    usable format.
2688
2689  + Fix assertion failure due to rounding differences on loading certain .3d
2690    files.  (ticket#26)
2691
2692  + Fix assertion failure when turning on 3D passages if they stick out higher
2693    or lower than any station.  (ticket#29)
2694
2695  + Fix grid not to disappear when blobs are turned on and blobs are drawn
2696    using lines.
2697
2698  + If a degree sign isn't available in the character set in use, transliterate
2699    it to 'dg' rather than skipping it.
2700
2701  + Fix message which should have been a degree sign but got lost in the format
2702    change for 1.2.0 and then got reassigned in 1.2.1.  Externally, this means
2703    that bearings in the status bar now have a degree sign after them if they
2704    are in degrees rather than nothing (1.2.0) or "&Hide Compass" (1.2.1).
2705
2706  + Fix print dialog to calculate the scale required for "One page" right
2707    before it calculates how many pages are required, so we don't end up
2708    something other than 1x1 being shown when the user changes settings.
2709
2710  + Update the calculations for picking a scale and for deciding how many
2711    pages are needed to take into account the change in info box height made
2712    in 1.2.1.
2713
2714Changes in 1.2.1 (2011-10-04):
2715
2716* Translation updates for US English.
2717
2718* aven:
2719
2720  + Rename the "depth bar" to "colour key" in documentation, menus, etc since
2721    it now shows colours for dates and errors as well as depths.
2722
2723  + In the colour key for "colour by date", change "No info" to "Undated".
2724
2725  + Remove the dark grey background from the colour key and just put a single
2726    pixel black border around the colours.  This is more in keeping with the
2727    other controls, and means the colours are now on a black background so more
2728    visually similar to the survey legs.
2729
2730  + Move the colour key's "Undated"/"Not in loop" entry down a little to
2731    improve the appearance.  Make each section a pixel taller.
2732
2733  + Allow "Colour by X" to be selected even if there's no data for X or only a
2734    single value of X used (the colour key is much smaller in these cases, and
2735    does still provide some useful information).
2736
2737  + Fix incorrect calculation of depth colouring for survey legs which straddle
2738    a depth band boundary.
2739
2740  + The scale bar, compass, clino, and colour key now all have right click
2741    menus which allow related actions to be performed (especially handy in
2742    full-screen mode).
2743
2744  + Improve the font used on the survey pane - it now contains the '-'
2745    character (so the clino now shows negative angles as negative, and dates
2746    in the colour key are now hyphenated).  Also the spacing and alignment
2747    are a little better, though still not perfect.
2748
2749  + PLT file export now handles spaces and control characters in station names
2750    by escaping them with '%' as in URLs.
2751
2752  + Pressing "Enter" on a station in the tree control now centres the view on
2753    that station.
2754
2755  + The scale bar is now cached in an OpenGL display list since it often gets
2756    redrawn exactly the same - for example, when rotating, panning, etc.
2757
2758  + Pressing "F5" forces all cached OpenGL drawing lists to be invalidated and
2759    then forces a refresh of the survey pane.  This is intended as a debugging
2760    aid - if pressing F5 changes the display at all then there's a missing case
2761    where a list should have been invalidated (please report if you find such
2762    a case as it is a bug).
2763
2764  + We now automatically track which OpenGL display lists need to be
2765    invalidated on window width or height changes.
2766
2767  + Increase scale bar maximum width from 65% of the window width to 75% as it
2768    was in 1.0.x (except that if that would overlap the clino we now reduce
2769    that proportion down until it reaches 50%).  Make the limit of zooming in
2770    the same as in 1.0.x.  (ticket#23)
2771
2772  + (Linux version): Previously wxGTK didn't really handle showing a dialog if
2773    the application was fullscreen (the dialog got opened under the main
2774    window!)  To work around this, aven would switch out of full screen mode
2775    temporarily while showing a dialog.  This case works properly with recent
2776    wxGTK, so disable our workaround with versions we know work.  Also, apply
2777    the workaround only for wxGTK, not everywhere except on Microsoft Windows
2778    as there's no reason to think we need it for other platforms.
2779
2780  + Grey out the "View North" action when we're already viewing North, and
2781    similarly for other compass points.
2782
2783  + (Mac OS X and Microsoft Windows versions): Fix missing newline to OpenGL
2784    info in the "About" dialog.
2785
2786  + Fix to set the correct filename on the root of the survey tree - previously
2787    the filename of the previous file loaded was used!
2788
2789  + The movie export code now works with newer versions of the FFmpeg libraries
2790    as well as still working with older versions.
2791
2792  + Fix mixed up messages - the print dialog now says "View" on the left
2793    subgroup of controls rather than some unrelated message.
2794
2795  + On printouts, combine the "Plan View"/"Elevation" info box field with the
2796    field which gives the bearing and reduce the height on the info box by the
2797    removed field, so it's now 3cm for plans and elevations, as for extended
2798    elevations.  Report the tilt angle for tilted elevations which it seems has
2799    been missing for ages (it's not in recent 1.0.x either).
2800
2801  + Tweak the exact positioning of informational text on printouts to look
2802    nicer and make better use of the available space.
2803
2804  + Add keyboard mnemonics to the "Plan" and "Elevation" buttons in the print
2805    dialog.
2806
2807  + Make the sign of the tilt angle for printouts consistent with the sign
2808    shown by the "clino" in the survey pane.
2809
2810  + In the "Print" dialog, when in plan view disable the "Plan view" button,
2811    and similarly for the "Elevation" button.
2812
2813  + (Microsoft Windows version): Sort out appearance of custom cursors.
2814
2815  + If a label isn't valid UTF-8 or CP1252, fall back to ISO8859-1.
2816
2817  + (Mac OS X version): F11 puts aven into full screen mode, but apparently
2818    you can't get out again easily, so add code to explicitly check for F11
2819    being pressed and toggle full screen.
2820
2821* (Linux version): Fix the RPM .spec file for where man pages now get installed
2822  and package aven.svg and the vim support files.  (Fixes from James Begley)
2823
2824* "make check" now performs several checks on the translation files.
2825
2826* More messages are now available to be translated.
2827
2828* cavern: Fix reporting of ranges of survey coordinates, which was broken by
2829  the message handling changes in 1.2.0.
2830
2831* Fix warning when compiling with GCC.
2832
2833* INSTALL: Mention building wxWidgets with --enable-unicode.  Mention using
2834  sudo for installing on Unix.
2835
2836* In the manual, replace the instructions for building from source with a
2837  pointer to the clearer instructions in INSTALL.
2838
2839* In the manual, make it clear that installing with administrator rights
2840  also applies to newer platforms than XP.
2841
2842* doc/TODO.htm: Update.
2843
2844Changes in 1.2.0 (2011-09-20):
2845
2846* Translation updates for Catalan, French, Romanian, Spanish, Slovak, and US
2847  English.
2848
2849* tests/smoke.tst: aven no longer requires an X display for --help or
2850  --version, so replace skip of this check with a check that this remains the
2851  case.
2852
2853* We now use the standard .po and .pot file formats for storing translations
2854  (rather than the Survex-specific messages.txt format), and then translate
2855  these into Survex's .msg format.
2856
2857* (Unix version): Move survex man page to section 7 (since it isn't documenting
2858  an actual command).
2859
2860* (Unix version): Write each generated man page to a temporary file, then
2861  atomically rename, to avoid leaving an empty or partial man page behind if
2862  docbook-to-man dies (1.1.16 had an empty cad3d.1, and we want to avoid a
2863  recurrence of that).
2864
2865* (Unix version): Default to installing docs into /usr/share/doc/survex rather
2866  than /usr/doc/survex.
2867
2868* aven:
2869
2870  + Fix handling of accented characters in the survey pane.
2871
2872  + Aven icon redrawn in SVG format - it's now a vector image which looks
2873    nicer at larger sizes.
2874
2875  + Explicitly request double-buffering, which seems to be needed for systems
2876    with GLX >= 1.3.
2877
2878  + Fix crash while trying to load certain .3d files.
2879
2880  + Movie export code updated to work with more recent versions of FFmpeg.
2881    Currently this is disabled in Microsoft Windows builds, pending getting the
2882    required libraries set up for building releases.
2883
2884  + Reporting of errors during movie export improved.
2885
2886  + Force playback speed to "x1" during movie export.
2887
2888  + Use stock IDs for buttons where appropriate - such buttons may now be
2889    rendered with icons on some platforms.
2890
2891  + If a label isn't valid UTF-8, treat it as CP1252 (the Microsoft superset of
2892    ISO8859-1).
2893
2894  + (Unix version): Remove special handling for toggling "full screen" on wxGTK
2895    as it's no longer required with modern versions.
2896
2897  + Don't redraw the survey on every mouse movement in the survey pane unless
2898    the measuring line is (or just was) active.  (ticket #17)
2899
2900* cavern:
2901
2902  + Drop "non-fatal" from the report of how many errors there were at the end
2903    of the run - it just confuses users - we won't even get here if there's a
2904    fatal error!
2905
2906  + Add --3d-version option to allow the user to specify the version of the 3d
2907    format to output.  (ticket#21)
2908
2909* img library:
2910
2911  + Make the highest and lowest valid values for img_output_version available
2912    in img.h as IMG_VERSION_MIN and IMG_VERSION_MAX.
2913
2914* (Mac OS X version): Fix buildmacosx.sh script to check where the temporary
2915  volume actually gets mounted.  Fix URL for downloading wxWidgets.
2916
2917Changes in 1.1.16 (2011-05-16):
2918
2919* Translation updates for German, Spanish, Italian, Portuguese, Brazilian
2920  Portuguese, and US English.
2921
2922* Use horizontal ellipses character rather than '...' and right arrow character
2923  rather than '->' where these characters are available.
2924
2925* (Unix version): Link with -lGL, if it exists, to support linking with gold or
2926  GNU ld --as-needed (Debian bug #615781).
2927
2928* img.c:
2929
2930  + Fix code typo for IMG_API_VERSION == 0 case.
2931
2932  + Fix code typo in code used when IMG_HOSTED isn't defined.
2933
2934* doc/TODO.htm: Remove entries which have now been done.
2935
2936* (Microsoft Windows version): aven: We now include all the available
2937  translations for messages from wxWidgets, which means that standard widgets
2938  will appear translated where available even if Survex messages aren't
2939  translated.
2940
2941Changes in 1.1.15 (2010-10-15):
2942
2943* aven:
2944
2945  + In the cavern log window, change the "Rerun" button to "Reprocess" to
2946    follow terminology in manual and elsewhere.  Fixes ticket#15.
2947
2948  + When displaying output from cavern, don't update the window after every
2949    line, but only when we don't have data from cavern pending.  Hopefully
2950    addresses ticket#12.
2951
2952  + If we aren't using GL_POINTS for blobs, draw them using a series of
2953    abutting lines rather than with gluDisk which is faster and gives a
2954    consistent shape.
2955
2956  + Check whether blobs and crosses actually render correctly as points/point
2957    sprites, and if they don't, fall back to drawing them with lines.  The
2958    best method is cached on disk, and rechecked automatically if the graphics
2959    hardware is changed or the drivers upgraded.
2960
2961  + Fix non-USE_FNT case to work again (it's limited to ISO-8859-1 characters
2962    though, so we still enable USE_FNT by default).
2963
2964  + Don't offer "All files" wildcard in presentation save dialog.
2965
2966  + (Microsoft Windows): Handle filenames with non-Latin1 characters in in
2967    more places.
2968
2969  + (Microsoft Windows): Quote filenames with spaces and metacharacters in
2970    when running cavern from aven.  Fixes ticket#11.
2971
2972* editwrap: (Microsoft Windows): Handle filenames with non-Latin1 characters.
2973
2974* diffpos: Handle files with duplicate labels in better - extend generates
2975  duplicate labels when it breaks a loop.
2976
2977* Enable eswap-break testcase now that diffpos handles duplicate station names.
2978
2979* New v7 of .3d format which stores survey dates as number of days since
2980  January 1st 1900, so we now support dates from 1900-2078 (rather than
2981  1970-2037) with a smaller file size.  The img API is now versioned - you
2982  can select the new "version 1" by compiling with -DIMG_API_VERSION=1, which
2983  gives the survey dates in days in days1 and days2 instead of as time_t
2984  values in date1 and date2.  Fixes ticket#14.
2985
2986* Consistently use http://survex.com/ rather than http://www.survex.com/ - the
2987  former has been the canonical name for some time, with www.survex.com just
2988  redirecting to it.
2989
2990* (Unix version): Use unlocked file I/O if available, which can be much faster
2991  in some cases (we don't need the locking as we don't do multithreaded file
2992  I/O).
2993
2994* (Mac version): Fix compilation failure due to clash with Point in Mac OS X
2995  headers.
2996
2997* (Mac version): buildmacosx.sh now works again.
2998
2999* Most tests weren't actually running any testcases (looks like a sh
3000  portability issue).  This is now fixed, and fortunately all tests still pass.
3001
3002* Include the extra .isl translation files for Innosetup in the source archive.
3003
3004Changes in 1.1.14 (2010-07-26):
3005
3006* Restore compatibility with wxWidgets 2.6 (1.1.13 required wxWidgets 2.8).
3007
3008* aven:
3009
3010  + After processing survey data, if there were warnings or errors, add a
3011    "Rerun" button to allow easy reprocessing after fixing problems.  If there
3012    were only warnings, also add an "OK" button to allow moving on to viewing
3013    the processed survey data (fixes ticket#13).
3014
3015  + Optimise updating of the cavern log window (hopefully fixes ticket#12).
3016
3017  + Fix links in cavern log window to link from exactly '<file>:<line>' (and
3018    not the ': ' after), and to make the title for the terminal the
3019    warning/error message.  Avoid false positives by checking that '<line>' is
3020    a number.
3021
3022  + Don't double escape the contents of href and target in links in the cavern
3023    log window.
3024
3025  + Improve handling of the splitter window, fixing behavioural glitches in
3026    various cases.
3027
3028  + Highlight stations matching any current search when a file is loaded.
3029    (ticket#9)
3030
3031  + (Mac version): Fix build issue due to Mac OS X polluting the global
3032    namespace with its own "Point" class.
3033
3034  + (Unix version): The Gnome print dialog has its own preview window so
3035    suppress ours if using the Gnome one.
3036
3037  + (Unix version): Link aven with -lGLU which SuSE Linux needs.
3038
3039  + (Microsoft Windows version): Fix handling of a double-click on the survey
3040    tree when built with wxWidgets >= 2.8.11.
3041
3042* cavern: Report relevant file and line number for three warnings which didn't
3043  give them before.
3044
3045* (Unix and Mac versions): configure: Update the wx-config probing code -
3046  wxmac-config etc aren't present with newer wxWidgets versions so there's no
3047  point looking for them now.
3048
3049* (Mac version): buildmacosx.sh: This script builds a diskimage with Survex in
3050  for easy installation.  Update it to work with the latest Survex versions
3051  (use WX_CONFIG not WXCONFIG; use a Unicode build of wxWidgets; if building a
3052  private wxWidgets, use 2.8.11 not 2.7.0-1).
3053
3054* manual:
3055
3056  + Correctly capitalise "GTK".
3057
3058  + Note that on Linux we only regularly test builds with the GTK+ version
3059    (change taken from 1.0).
3060
3061* Fixed the cad3d man page, which was an empty file in 1.1.13.
3062
3063Changes in 1.1.13 (2010-06-16):
3064
3065* Say "wxWidgets" instead of "wxWindows" consistently.
3066
3067* img.c: Fix small memory leak (filename_opened member).
3068
3069* cad3d, aven: Fix export to SVG when a label contains a '%' character.
3070
3071* aven:
3072
3073  + wxWidgets 2.6.0 or newer is now required.
3074
3075  + A "Unicode" build of wxWidgets is now supported.  An "ANSI" build may still
3076    work but hasn't been tested recently (all packaged versions of wxWidgets
3077    seem to be Unicode now).
3078
3079  + Fix potential uses of uninitialised variables which may have been causing
3080    occasional glitches when loading a file on start-up.
3081
3082  + Improvements to the handling of the font used for plotting labels and other
3083    text on the survey pane:
3084
3085    - Loading the font file is more efficient.
3086
3087    - Character spacing is improved.
3088
3089    - Default font is now anti-aliased.
3090
3091  + "About" dialog:
3092
3093    - Add "Copy" button to copy the system info to the clipboard for easier
3094      bug reporting.
3095
3096    - List OpenGL extensions last, since there are usually lots of them with a
3097      modern gfx card.
3098
3099    - Fix 100% CPU usage while the "About" dialog is open.
3100
3101  + Processing .svx files:
3102
3103    - Passing a .svx file on the command line now works better.
3104
3105    - Put the survey data log window in a splitter in the usual frame rather
3106      than opening a separate frame for it.
3107
3108    - Auto-scroll the log window until we've reported a warning or error.
3109
3110    - Fix small memory leak.
3111
3112  + The presentation filename now defaults to using the basename of the
3113    currently loaded dataset, but we always prompt before we first save with
3114    such a name.
3115
3116  + Reduce memory usage when saving a screenshot.
3117
3118  + Allow "Toggle Fullscreen" to work even if no survey is loaded now that we
3119    persist the window size (and maximised or fullscreen state) between
3120    invocations.
3121
3122  + Fix reporting of OpenGL errors.
3123
3124  + Fix glitches when tilting while looking East.
3125
3126  + Added Portuguese and Slovak translations of wxWidgets messages.
3127
3128* Documentation:
3129
3130  + Rationalise manual formats - replace PostScript with PDF and drop RTF.
3131
3132  + Drop the "alternative manual formats" self-extracting zip file - people
3133    will generally just want one of the formats, so downloading several
3134    together isn't very useful.
3135
3136  + 3dformat.htm: Update for v6 format (thanks to Mike McCombe).
3137
3138  + GPL.htm: Replace HTML version of licence with a link to the version on
3139    the FSF website.
3140
3141  + ChngeLog.htm: Stop generating an HTML version of the ChangeLog - it's too
3142    low level to be of interest to non-developers, and developers can look at
3143    the source code.
3144
3145* (Unix version): configure: New preferred name for specifying wx-config script
3146  is WX_CONFIG.  WXCONFIG still supported for compatibility.
3147
3148* (Linux version): Source RPM package dropped as you can just build an RPM
3149  package from the source tarball.
3150
3151* (Microsoft Windows version): The installer is now created with a newer
3152  version of InnoSetup, which gives a 10% smaller download.
3153
3154Changes in 1.1.12 (2007-02-07):
3155
3156* aven:
3157
3158  + Remember the window size or maximised/fullscreen state between invocations.
3159
3160  + Add options dialog to "Export" similar to the one for "Print".
3161
3162  + The "number of pages required" in the print dialog now updates when you
3163    change what is to be shown (underground legs/surface legs/station
3164    names/crosses).
3165
3166Changes in 1.1.11 (2006-11-25):
3167
3168* Updated Czech, Spanish, and Slovak translations.
3169
3170* (MacOS X version): Assorted OS X specific tweaks and fixes.
3171
3172* aven:
3173
3174  + Pick a smaller and clearer font for labels.
3175
3176  + Fix character spacing.
3177
3178  + Tweak display of bearing and elevation angles to look nicer with
3179    proportional fonts.
3180
3181  + Use the title from the 3d (or plt, etc) file for the window title
3182    rather than the filename.
3183
3184  + Show distances to 2 decimal places rather than the nearest integer.
3185
3186  + Only consider underground legs when calculating the depth bands and
3187    depth colouring.
3188
3189  + Add "Colour by Error".
3190
3191  + Add entry for "white" in date and error keys.
3192
3193  + When setting the view to a single point, don't change the scale.
3194
3195  + If reloading the same file, don't change the view
3196
3197  + Fix filetypes selector in open dialog.
3198
3199  + Fix the charset we use for aven in certain cases.
3200
3201  + Call msg_init before using msg_lang or it won't ever be set!
3202
3203  + Pass wx the full language code to initialise the C library locale.
3204
3205  + Fix bug in generating prefix tree view which could lead to a bogus
3206    leading dot on some survey names (bug probably introduced in 1.1.10).
3207
3208  + "New Presentation" now ensures that the side panel is open
3209
3210  + Fix updating of cached opengl lists when the view is reset to the
3211    default.
3212
3213* Ignore LANG if it starts with a digit to avoid problems with bogus value for
3214  LANG which AutoCAD installation seems to set on MS Windows.
3215
3216* (Unix version): configure: Allow SGMLTOOLS and DOCBOOK_TO_MAN to be
3217  specified.  Either/both can be set to ":".
3218
3219* dump3d: Report unknown (to dump3d) codes returned by img.
3220
3221* img library: Flag all stations as underground in the old "ASCII" .3d format.
3222
3223Changes in 1.1.10 (2006-07-14):
3224
3225* aven: Clicking on a survey name in the survey tree now highlights it in
3226  the map view.  Double-clicking zooms the view to show the clicked survey
3227  highlighted.  Clicking the root clears the highlighting and double-clicking
3228  the root restores the default view.  To expand/collapse a branch, click
3229  on the "[+]" or "[-]" icon to the left of the survey name.
3230
3231* aven: The measuring line can now measure to anywhere in plan or elevation
3232  view (not just to a station!)  In plan view the horizontal distance and
3233  bearing are shown, while in elevation view the vertical distance is shown.
3234
3235* aven: Moving the mouse over a station in the survey view now highlights
3236  that station in the survey tree (though it may not be visible if the
3237  survey(s) it is in aren't expanded).
3238
3239* aven: Clicking on a station to centre the view now moves the mouse pointer
3240  to the new location of the station (except on Mac OS X where this isn't
3241  allowed).
3242
3243* aven: Fix which presentation toolbar buttons are shown as depressed.
3244
3245* Fix infinite loop reading 3d files with LRUD data (bug introduced in 1.1.9).
3246
3247* vim files are now installed with the correct paths (bug introduced in 1.1.9).
3248
3249Changes in 1.1.9 (2006-07-04):
3250
3251* (Unix version): Install desktop files for aven and svxedit contributed to the
3252  Ubuntu package by Phil Bull, and corresponding pixmaps.
3253
3254* Fix img to filter out cross-sections which don't match the subsurvey (if
3255  specified).  The API now returns img_XSECT_END to mark the end of a
3256  passage rather than setting a flag on the last img_XSECT of the passage.
3257
3258* Enhance integration with the vim editor - this can now colour .err files, run
3259  cavern from vim and parse error output, and run aven from vim.  Tweak the
3260  existing vim mode for .svx files to fix a few minor bugs and add support for
3261  the new "*data passage" style.
3262
3263* aven: fix drawing of the "blob" end of the measuring line on graphics cards
3264  which can't draw large enough blobs for us.
3265
3266* aven: sort out confusion about what encoding everything is in which means
3267  that the distance measured by the measuring line actually gets displayed
3268  and also fixes problems with empty menu items in non-English locales in
3269  some cases.
3270
3271* aven: redraw grey background after a menu is closed over the aven window
3272  with no survey loaded.
3273
3274* aven: fix bug which caused printing to crash (introduced in 1.1.8).
3275
3276* aven: avoid crash on some machines when opening "About" dialog before having
3277  loaded a survey.
3278
3279* aven: Translate "Plan" and "Elevation" buttons in print view dialog.
3280
3281* (Unix version): aven: Fix character set handling of cavern output.
3282
3283* cavern: Report an error if a cross-section is specified for a station which
3284  doesn't exist.
3285
3286* Updated French and Italian translations.
3287
3288* (Unix version): aven: Fix "Can't open message file `en_US' using path
3289  `${prefix}/share/survex'" error.
3290
3291* Fix bug in 3d file reading on 64 bit platforms when used in STANDALONE mode
3292  (doesn't affect Survex itself, but other applications which use img.c should
3293  update their copy).
3294
3295* (Unix version): Add checks that wxWidgets is a non-unicode version (wx 2.6
3296  and later are caught by configure, whereas older wx versions are caught when
3297  trying to compile).
3298
3299Changes in 1.1.8 (2006.06.30):
3300
3301* Drop support for building with wxWidgets versions prior to 2.4.0
3302  (which was released on 2003-01-07).
3303
3304* aven: Printing through aven now uses settings from the "[aven]" section
3305  of print.ini, and support for hierarchical sections (using "like=")
3306  has been disabled.
3307
3308* aven: Change mouse actions to be compatible with those in Survex 1.0.
3309  The mousewheel now zooms in/out (it doesn't do anything in 1.0) and
3310  left drag is now smart about not rotating and zooming at the same
3311  time.
3312
3313* aven: Highlighting stations now happens as you type, and pressing
3314  "Enter" or clicking the "Find" button now pans and zooms to show the
3315  highlighted stations.
3316
3317* aven: Left-clicking away from a station now cancels measuring line.
3318
3319* aven: Setting view to North, South, East, or West is now animated like
3320  the tilt from plan to elevation.
3321
3322* aven: Fix presentation saving to also write "." for decimal points and
3323  presentation loading to accept either "." or ",".
3324
3325* (Unix version): aven: Add text for all toolbar items so that aven
3326  will work with the Gnome desktop preference for displaying toolbars as
3327  icons with text or just text (wxWidgets needs fixing first though).
3328
3329* (Unix version): aven: Remove the ability to detach the menu bar (yell
3330  if you actually used it and I'll restore it!)
3331
3332* aven: Add "all survey files" option to the "open file" dialog.
3333
3334* (MS Windows version): aven: Fix cursor keys to pan survey.
3335
3336* (MS Windows version): Built with wxWidgets 2.6.3 instead of 2.6.2.
3337
3338* (MS Windows version): Fix installer to work on Windows 2000 or XP if
3339  run by an unprivileged user.
3340
3341* (MS Windows version): Upgrade to the latest version of InnoSetup (the
3342  installer builder we use) and include new installer translations for
3343  UK English, Spanish, Brazilian Portuguese, Italian, Romanian, and Slovak.
3344
3345* (MS Windows version): aven: Include Catalan and Brazilian Portuguese
3346  translations of messages for wxWidgets (the GUI library we use).
3347
3348* aven: Disable "Highlight exported points" if there aren't any.
3349
3350* Updates to French translation from Michel Bovey.  Also updates to German,
3351  Italian, Catalan, Spanish, and Romanian translations.
3352
3353* (Unix version): test suite: fix smoke test to pass even without X running
3354  (it was meant to but the code had a bug).
3355
3356* aven: Check if OpenGL is available and exit cleanly with a helpful error
3357  if it isn't.
3358
3359* (Unix version): aven: Fix --help and --version to work without a working
3360  X display (provided it's built with wxWidgets 2.5.1 or newer).
3361
3362* aven: Automatically select the presentation tab of the notebook when the user
3363  selects "New Presentation" or "Open Presentation".
3364
3365* aven: Fix "Delete" in the presentation list to not get passed on (and so not
3366  reset to default view as well).
3367
3368* aven: Fix Ctrl+Insert in the presentation list not to segfault if the list is
3369  empty.
3370
3371* aven: Fix Cursor Up and Down in the presentation list to move the highlight
3372  up and down instead of being passed on and moving the survey.
3373
3374* aven: Improve SVG output compatibility.  Tested with Mozilla Firefox 1.5,
3375  Adobe's SVG browser plugin, Gimp 2.2.8, Gqview 2.0.0, Opera 8.5,
3376  Safari 2.0.3, and InkScape 0.42.
3377
3378* aven: Put a 5mm border around exported SVG files to allow for station markers
3379  and non-zero width lines.
3380
3381* aven: Fix crash when exporting as SVG or Sketch if labels or surface data
3382  was turned on.
3383
3384* aven: Actually close the file we're exporting which fixes problems with it
3385  not always being fully written.
3386
3387Changes in 1.1.7 (2005.10.18):
3388
3389* cavern: Add validity checking for dates in *date commands (with feature
3390  test in testsuite).  A date entered as just "year" or "year.month" now
3391  becomes a date range for the relevant period (previously it became a single
3392  date near the middle of that period).
3393
3394* extend: Fixed 2 uninitialised flags (should fix erratic behaviour on
3395  with MS Windows).
3396
3397* extend: Default output name for a file called input.3d is now input_extend.3d
3398  rather than just extend.3d (which was annoying if you wanted to extend
3399  several surveys in the same directory).
3400
3401* aven: OpenGL 2.0 always includes support for point sprites so rework
3402  our check for them to include that knowledge.
3403
3404* aven: Regenerate depth bar if user switches to/from metric units.
3405
3406* aven: Don't clear the "there" mark just because the mouse pointer has
3407  moved off a station.
3408
3409* aven: When processing a .svx file, put the resultant .3d file in the
3410  same directory (since that's where we then try to load it from).
3411
3412* aven: Fix labelling of date colouring on 32 bit platforms.
3413
3414* aven: If "colour by date" is on and we load a survey with no date info
3415  (or all surveyed on the same date) then set "colour by none".
3416
3417* aven: Make the error dialog modal and remove a signal handler once it
3418  has fired to prevent endless (or seemingly endless) cascades of error
3419  dialogs.
3420
3421* aven: Enforce a minimum object volume diameter of 1m to avoid problems
3422  if a survey file with only one station in is loaded.
3423
3424* aven: Fix problems with indicators disappearing when we're drawing
3425  blobs and/or crosses the slow (but always supported) way.  (Problem
3426  introduced in 1.1.6).
3427
3428* (Unix version): aven: Really stop setting extra toolbar margin when using
3429  GTK2.0.  The attempt to fix this in 1.1.3 failed because __WXGTK12__ is
3430  set for GTK+ 1.2 or *any later release* so is true for GTK+ 2.0 too!
3431
3432* (Unix version): aven: Add details of which of wxGTK, wxMotif, and wxX11
3433  we've been compiled with, and which GTK+/Motif version where appropriate.
3434
3435* (Unix version): Fixed build on Fedora Core 3.
3436
3437* documentation: Updates to 3d file format specification from Mike McCombe.
3438
3439Changes in 1.1.6 (2005.10.10):
3440
3441* (MS Windows version): Distribution is about a third smaller than 1.1.5
3442  (mostly because mingwm10.dll is no longer required).
3443
3444* aven: If aven is asked to load a .svx, .dat, or .mak file, run cavern on
3445  it, showing cavern's output in a window (with errors and warnings clickable
3446  to load the offending file into an editor), and then loading the resulting
3447  3d file.
3448
3449* aven: Added "Colour by Date" option.
3450
3451* aven: Disable "Colour by Depth" option if there's no elevation variation.
3452
3453* aven: Don't crash if trying to load a survey with no elevation variation.
3454  Instead turn off depth colouring.
3455
3456* aven: Export as HPGL added.
3457
3458* aven: Improved update of mouse coordinates and measuring line (thanks to
3459  Martin Green).
3460
3461* aven: Show the coordinates of either the mouse pointer or the nearest
3462  survey station to it (if there is one near enough).  Showing both was
3463  confusing and meant the status bar overflowed on smaller displays.
3464
3465* aven: When printing an extended elevation, don't show bearing and elevation.
3466
3467* aven: Don't lock "flat" surveys which aren't extended elevations - a
3468  flat survey with LRUD data isn't flat any more!
3469
3470* aven: When we have to draw blobs and crosses the slow way (because the
3471  graphics hardware doesn't support the fast way), draw them so that they
3472  should appear at the correct depth into the 3D scene instead of on top
3473  of everything else.
3474
3475* aven: Make "play presentation backwards" icon green to match the other
3476  presentation icons.
3477
3478* (MS Windows version): aven: Mouse clicks on the survey view now set the
3479  keyboard focus there.
3480
3481* (MS Windows version): aven: Fix first redraw of a newly loaded survey.
3482
3483* (MS Windows version): aven: Fix redrawing of measuring line.
3484
3485* cavern: Store dates for img_XSECT.
3486
3487* cavern: Fixed small one-off memory leak if you specify -o more than once.
3488
3489* (Unix version): Check environmental variable LC_MESSAGES when deciding what
3490  language to use for messages.
3491
3492* (MS Windows version): "Print" on a 3d file now prints through aven rather
3493  than the separate printer driver (Unix has done this for some time).
3494
3495* Removed old printer drivers.
3496
3497* img library: When creating a 3d file, ignore img_XSECT if we've been asked
3498  to write a file format version which doesn't support it.
3499
3500Changes in 1.1.5 (2005.09.20):
3501
3502* (MS Windows version): aven: Fixed crash on start-up (introduced in 1.1.4).
3503
3504* aven: Make blobs round like they are in Survex 1.0.
3505
3506* aven: If the graphics drivers don't support drawing blobs using OpenGL
3507  point markers, fall back to drawing filled circles.
3508
3509* aven: If the graphics drivers support it, draw crosses as texture mapped
3510  OpenGL point markers which is much faster.
3511
3512* aven: Cross size increased to match Survex 1.0.
3513
3514* aven: We must update which blobs are displayed if display of surface or
3515  underground legs is toggled.
3516
3517* cavern: Fix handling of a *solve followed by survey data, none of which is
3518  attached to the previous data.
3519
3520* cavern: Fixed "No survey data" error when a *solve is followed by another
3521  *solve (or the implicit solve at the end of processing) with no data between
3522  them.
3523
3524Changes in 1.1.4 (2005.09.19):
3525
3526* aven: Added Aven's icon to the "About" dialog.
3527
3528* aven: Use localised character for the decimal point (e.g. "," in most
3529  continental European countries).
3530
3531* aven: Previously the survey tree would get focus and then take keypresses
3532  (e.g. "P", "L", "Delete").  Now we pass most keypresses across so they
3533  operate on the cave, and transfer the input focus across when we do.
3534
3535* aven: Make pressing "Return" in the tree control expand/collapse a subtree.
3536
3537* aven: Speed up intialisation by delaying creation of OpenGL lists until
3538  they're needed.
3539
3540* aven: Added Mark Shinwell's bounding box with shadow of the survey.
3541
3542* aven: Disable the "Tubes" button/menu item when there's no LRUD data.
3543
3544* aven: Reworded "Restore Default Settings" as "Restore Default View".
3545
3546* (Unix version): aven: Set sensible default margins for printing and preserve
3547  any margin values the user specifies between runs (previously margins
3548  defaulted to 0 each time aven was run).
3549
3550* Documentation: Document *DATA PASSAGE in the manual.
3551
3552Changes in 1.1.3 (2005.09.07):
3553
3554* (Microsoft Windows version): Fixed build problems.
3555
3556* cavern: Allow OMIT character (-) for left/right/up/down.
3557
3558* aven: Remove an unnecessary menu separator.
3559
3560* aven: Fix "Find" and "Hide" toolbar buttons to work with GTK2.0.
3561
3562* aven: Make the tooltip for "Hide" show the number of found stations.
3563
3564* aven: If * or ? is used in a glob-style pattern, force a non-substring match.
3565
3566* aven: Enable "New Presentation" when there's a 3d file loaded, rather than
3567  when there's a presentation loaded.
3568
3569* aven: Make entrances green in side panel tree list to match green blobs used
3570  in cave view.
3571
3572* aven: Don't show surface labels if we're not showing surface data, etc.
3573
3574* aven: Merge "Start Rotation" and "Stop Rotation" into "Toggle Rotation" and
3575  make "Space" the key for this.  Keep Return working "Stop Rotation" so
3576  existing users are happy, but don't advertise it.
3577
3578* aven: Normalise filename by adding any extension used, and use the normalised
3579  filename for file history and window title.
3580
3581* (Unix version): aven: Stop setting extra toolbar margin when using GTK2.0
3582  as the toolbar buttons already have a sensible margin - the extra margin is
3583  only needed with GTK1.2.
3584
3585* aven: Fix handling of plumb legs in tube model.
3586
3587* aven: Fixed swapped L and R in tube model.
3588
3589* extend: Preserve UD cross-section information in extended elevation.
3590
3591* extend: Add new messages for John Pybus' enhancements.
3592
3593Changes in 1.1.2 (never formally released):
3594
3595* Added support for LRUD data in .svx files, in .3d files, and aven can
3596  now load and display it on screen and on printouts.  The ability to "fake"
3597  LRUD data in aven is gone for now but will reappear in some form later.
3598
3599* cavern: Removed support for writing Chasm's 3dx format.  We're going to
3600  fold any desirable missing chasm functionality into aven.
3601
3602* aven: Rearranged mouse actions as discussed on the mailing list.  Added
3603  cursors for each different mouse action to help the user learn what each
3604  does.  Also added cursors for the "compass" and "clino" as well as the
3605  scalebar to suggest to the user that they can be dragged to change the view.
3606
3607* (Unix version): aven: Don't segfault if LANG isn't a known language.
3608
3609* tests/smoketest.tst: If X windows is running, check that we can run aven
3610  with --help and --version.
3611
3612* tests/cavern.tst: Fixed cavern.tst to warn if it is skipping a test because
3613  no results are listed for it.  This revealed that there was a "newline" test
3614  which should have been called "badnewline", and was a broken testcase too!
3615  Fixed all these problems.
3616
3617* cavern: Applied Simeon Warner's patch for handling backcompass, backclino,
3618  and omitted forward compass/clino readings in Compass DAT files.  Added
3619  a feature test for this to the testsuite.
3620
3621* It no longer makes sense to have an option not to build aven or to build aven
3622  without OpenGL so remove old machinery for this from configure and the
3623  sources.
3624
3625* (Unix version): configure: Check if "-lXxf86vm" is needed.
3626
3627* configure: Better output for strcasecmp test.
3628
3629* aven: Fix crosses to work much better.  Not a total fix - their position
3630  in the Z buffer isn't correct and they're rather slow to plot.
3631
3632* aven: Don't regenerate the hittest grid every time the mouse moves while
3633  animating, which solves the mysterious pausing effect (thanks go to Martin
3634  Green for spotting this!)  Also clear all the status bar coordinates when
3635  animating.
3636
3637* aven: Sort out clashing menu shortcuts in some languages.
3638
3639* aven: Fixed compilation problem on x86_64
3640
3641* SPUD: Pruned out stuff which has been done or which is not actually relevant
3642  to this branch.
3643
3644* Merge various changes from 1.0 branch:
3645
3646  + aven: Port over "printing from aven" functionality.
3647
3648  + aven: Port over "export as" functionality,
3649
3650  + Add David Loeffler's vim mode for .svx files.
3651
3652* aven: Fix check for whether a label is behind us in perspective view.
3653
3654* aven: Don't use an opengl list for drawing the indicators - we typically make
3655  a new list each time we plot them anyway.
3656
3657* Remove lingering traces of support for RISC OS and pre-386 MSDOS
3658
3659* aven: Set icon on non-Windows platforms too.  This means that with
3660  WindowMaker on Unix you get an icon on the AppIcon by default.
3661
3662* configure: Update wxWindows checks to handle newer wx versions.
3663
3664* Make all maintainer perl scripts "use bytes;" to avoid utf-8 double encoding
3665  problems.  They also all require Perl 5.8 now (hopefully this isn't an issue
3666  for anyone building from CVS).
3667
3668* acinclude.m4: Quote macro name for fix autotools warning.
3669
3670* Documentation: "tilt up" is "'" not ",".
3671
3672* aven: Add support for mousewheels (to tilt the cave).
3673
3674* aven: Fixed twisted transitions to and from pitches in certain cases.
3675
3676* aven: Pick a sensible initial window size when the user's desktop is spread
3677  over more than one monitor (works best with wx2.5 or newer, but try to do
3678  better with wx2.4 or earlier as well).
3679
3680* aven: Initialise GfxCore slightly later to avoid visual glitch from notebook
3681  contents being visible before any survey is loaded.
3682
3683* aven: Allow a coloured texture to be used
3684
3685* aven: Don't initialise until we have data (to the user, this means the window
3686  is default colour (grey for most systems) not black until a survey is
3687  loaded).
3688
3689* aven: Fixed weird "shadowed" icons.
3690
3691Changes in 1.1.1 (2004-10-06):
3692
3693* (Microsoft Windows version): aven: Hopefully fix loading a survey file at
3694  startup.
3695
3696* aven: Delay loading the bitmap for the "About" dialog until it is first
3697  needed.  We want start up to be as quick as possible.
3698
3699Changes between 1.0.32 and 1.1.0 (never formally released):
3700
3701* NOTE: Survex 1.1.X releases are development snapshots made available for
3702  the purposes of allowing wider testing and getting more user feedback.  Once
3703  the code has stabilised the version number will be raised to 1.2.0.
3704
3705* aven: Now uses OpenGL for 3d rendering - you may need to install drivers if
3706  you're using Windows 95 - these can be obtained from:
3707  http://download.microsoft.com/download/win95upg/info/1/W95/EN-US/Opengl95.exe
3708
3709* aven: Solid passages - passage dimensions are currently inferred from
3710  the leg length (pretty effective as you can measure longer legs in
3711  larger passages).  Use of real LRUD data coming soon...
3712
3713* aven: Depth colouring is now continuously varying.
3714
3715* aven: Colour by depth can now be turned off (and there's the start of a
3716  framework for properly implementing colour by date, error, etc).
3717
3718* aven: Find stations moved onto the toolbar and now uses a simple wildcarded
3719  match (? matches any character, * matches any number of characters).
3720
3721* aven: We now use the status bar for coordinates, distances, etc to make
3722  better use of screen space.
3723
3724* aven: Full screen mode (F11).
3725
3726* aven: Perspective view.
3727
3728* aven: Context sensitive cursor shape - needs more work.
3729
3730* aven: Mouse actions changed (hopefully they're now more natural, but
3731  you may find the change disorientating - feedback wanted on this).
3732
3733* aven: Added "presentations" which allow you to set up fly-through paths
3734  and load/save/run them.
3735
3736* aven: A presentation can be exported as a movie file.
3737
3738* aven: Added Save screenshot facility.
3739
3740* aven: Depth fogging option.
3741
3742* aven: Added Smooth Lines option.
3743
3744* aven: Added Textured Walls option.
3745
3746* aven: If a survey has surface legs but no underground legs, default to
3747  showing the surface legs.
3748
3749* cavern: Dates given to *date are now stored in the 3d file.
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