source: git/NEWS @ 66b555d

Last change on this file since 66b555d was 66b555d, checked in by Olly Betts <olly@…>, 8 months ago

Update for 1.2.38

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File size: 126.6 KB
Line 
1Changes in 1.2.38 (2019-03-02):
2
3* cavern:
4
5  + Deprecate MILS as angular units.  Survex has long support MILS as an alias
6    for GRADS.  However, this seems to be a bogus definition of a "mil" which
7    is unique to Survex (except that Therion has since copied it) - there are
8    several different definitions of a "mil" but they vary from 6000 to 6400 in
9    a full circle, not 400.  Reported by Andy Edwards.
10
11  + Fix segfault for *include "".  This isn't useful, but shouldn't crash.  It
12    now reports "file not found" instead.
13
14  + Use isnan() to check for not-a-number.  This is cleaner, more robust and
15    more efficient than formatting the number as a string and checking for
16    "NaN" or "nan" in the result.
17
18* Avoid unused variable warning when compiling from source with modern ffmpeg.
19
20* Drop support for wxWidgets < 3.0.  3.0.0 was released over 5 years ago and
21  should be easily available everywhere by now.  I'm no longer easily able to
22  test with wxWidgets 2.8, and this allows a significant amount of cruft to be
23  removed.
24
25* (Linux version): survex.spec: Fedora have removed gcc from the default build
26  environment so need to explicitly list it in the BuildRequires tag.  See
27  https://fedoraproject.org/wiki/Changes/Remove_GCC_from_BuildRoot for more
28  information.  Patch from James Begley.
29
30Changes in 1.2.37 (2018-11-18):
31
32* aven:
33
34  + Add basic "Colour by Survey" feature.  The colours used aren't currently
35    controllable.
36
37  + Fix export of splays.  Patch from Thomas Holder.
38
39  + Fix KML export to avoid invalid geometry when a tube intersects itself.
40    Patch from Robert Jones.
41
42  + (Unix version): Fix to work under Wayland by forcing the x11 GDK backend
43    for now.  This is a workaround until wxWidgets OpenGL support is updated
44    to work under Wayland.  Reported by Philip Balister.
45
46  + Fix warnings about using deprecated functions when building movie export
47    code using FFmpeg 4.0.
48
49* cavern:
50
51  + Compass MAK files: Handle fixed point coordinates in feet - previously the
52    units were ignored and the coordinates assumed to be in metres.
53
54  + Previously the first byte in a MAK file was ignored.  Typically MAK files
55    start with a comment, and since cavern currently ignores lines that start
56    with characters it doesn't understand the meaning of, this bug would often
57    go unnoticed.
58
59* survexport:
60
61  + Fix exporting of passages, walls and cross-sections by running the code
62    aven uses to decide how much to rotate each cross-section.  Previously all
63    cross-sections were aligned West-East.  Reported by Robert Jones.
64
65  + Default to .pos output if the program name is 3dtopos, and install a second
66    copy (or hardlink under Unix) as 3dtopos.  This provides compatibility with
67    current releases of Tunnel.  Reported by Becka Lawson, Wookey and
68    Stephen Crabtree.
69
70* Fix some German translations.  Patch from Thomas Holder.
71
72* (MacOS X version): Fix aven-create-app to not delete converted icons.
73  Typo spotted by Robert Jones.
74
75* Improve documentation for *team.  Document the requirement to quote names
76  unless a person is identified by just one name.  Document that the roles are
77  optional, as that information may not have been recorded, and to align with
78  therion's team command.
79
80Changes in 1.2.36 (2018-07-18):
81
82* aven:
83
84  + Add support for exporting as a CSV (Comma-Separated Values) file.
85
86  + Support exporting KML with altitude mode "clamp to ground".  In this mode,
87    the altitude in the data is ignored and it's rendered on the surface of the
88    terrain.  This is useful if your KML viewer renders the terrain as opaque
89    so underground data isn't visible.  Rendering cave passages on the surface
90    isn't great, but is better than not being able to see them at all.  This
91    option may also be helpful if you want to see where to look on the surface
92    for new entrances.
93
94  + Highlight surveys with a white loop as the mouse is moved over them in
95    the survey tree.  This is akin to how we highlight a station with a
96    white ring, and allows restoring "double-click survey in tree to zoom"
97    which temporarily required a quadruple-click in 1.2.35.
98
99  + Only show checkboxes in the survey tree for surveys not stations.
100
101  + Fix wxWidgets assertion if the user tried to select additional surveys
102    to show via the right-click menu.
103
104  + Fix multiple survey filtering when both a parent and child survey are
105    selected.  In this case it makes most sense to show all child surveys of
106    the parent, but we actually showed a slightly arbitrary subset of the
107    child surveys of the parent.
108
109  + The checkbox area in the survey tree is now included in the area which
110    is considered by mouse-over updates such as highlighting the station or
111    survey.
112
113  + Fix display of double quotes in cavern log window (they were being replaced
114    with control character 0x16 due to a typo in the code).
115
116  + Add shortcuts to buttons in cavern log window.
117
118  + Eliminate use of gluErrorString() function which eliminates some
119    deprecation warnings when building on macOS.
120
121  + Reject multiple --survey command line options for now (only the last has
122    been used for a long time, but now we actually support multiple survey
123    filtering this matters more).
124
125* survexport:
126
127  + Report a useful error when trying to convert a .3d file without coordinate
128    system information to GPS.  Reported by Mark Shinwell.
129
130  + Handle multiple redundant --survey command line options correctly.
131
132* dump3d: Report station flag "WALL", which was added in 1.2.7.
133
134* Minor translation updates.
135
136* Update manual for Microsoft Windows changes.
137
138* tests/: Add test coverage for warnings about suspect readings
139
140* Fix warning when compiling with clang.
141
142Changes in 1.2.35 (2018-07-03):
143
144* aven:
145
146  + Viewing can now be restricted to multiple surveys.  Use the right-button
147    menu on a survey in the survey tree and select "Show" to enable checkboxes
148    for that survey and all its siblings.  Only the selected surveys are shown
149    on screen, printed and exported.
150
151  + Don't open a survey when its name is double clicked.  This was happening
152    due to code added to "allow double-clicking to work on wxMSW >= 2.8.11".
153    However, reverting that change still seems to allow double-clicking to work
154    on both wxMSW and wxGTK, but fixes the unwanted additional opening of the
155    survey.
156
157  + Pick initial survey scaling based on whichever of the window width or
158    height gives the smaller scale.  Previously we always used the window
159    width, which can result in parts of the cave being outside the initial
160    view.  Reported by Wookey.
161
162  + Drop ability to specify a PROJ string in the export dialog.  This was added
163    to allow exporting to formats such as GPX before we added support for
164    specifying the projection in .svx files, and that support is now mature.
165
166  + DXF export now uses 2 decimal places (was 6) for the bounding box, for
167    consistency with the precision used for coordinates.
168
169  + Fix handling of surface flag during export.  In formats which discriminate,
170    legs could previously have got assigned the wrong status.
171
172  + Fix bug which probably prevented aven starting when OpenGL double buffering
173    is unavailable.  This is unlikely to affect any common configurations.
174
175  + (Microsoft Windows version): Fix loading of 3d files with non-ASCII
176    filenames.  Issue reported by Matic.
177
178  + (Microsoft Windows version): Fix incorrect display of some toolbar icons.
179    Probably broken since 1.2.17.
180
181* survexport: New command-line export program which uses aven's export code.
182  Replaces 3dtopos, cad3d and findentrances, since it can do all that these
183  tools could do, plus much more.
184
185* Merge more Spanish i18n updates from Evaristo Quiroga.
186
187* Minor updates to various other translations.
188
189* img library:
190
191  + Now supports reading from and writing to an existing FILE*.
192
193  + Improve API documentation.
194
195* (Microsoft Windows version): Fix packaging to include wxWidgets translation
196  files like it was supposed to, which fixes a few missing translations.  This
197  was probably broken by changes in 1.2.8.  Reported by Evaristo Quiroga.
198
199* (Microsoft Windows version): Drop two options from explorer bindings.
200  "Convert to DXF" and "Convert for hand plotting" have both been supported via
201  aven for a while, and that's a more useful way to access them as you can
202  control what gets exported.
203
204Changes in 1.2.34 (2018-03-24):
205
206* aven:
207
208  + (Microsoft Windows version): Fix error on startup in the pre-built version
209    of 1.2.33.
210
211  + (Microsoft Windows version): Now using wxWidgets 3.0.4 (was 3.0.2).
212
213Changes in 1.2.33 (2018-03-22):
214
215* aven:
216
217  + Reliably disable scale bar in perspective view.  This is supposed to happen
218    (because the scale across the screen varies in perspective view) but
219    actually the scale bar stayed around until an update was forced for another
220    reason.  Spotted thanks to Pedro Silva Pinto.
221
222  + Make "no date"/"not in loop" colour grey.  The white was a bit bright and
223    made it harder to see the legs that had colours.  The grey now used is
224    within the brightness range of the other colours.  Fixes #94, reported by
225    Erin Lynch.
226
227  + Fix KML export - exporting both survey legs and station names resulted in a
228    malformed KML file.  This bug was introduced in 1.2.30 when support for
229    exporting passages and walls was added.  Reported by Erin Lynch in #90.
230
231  + Consistently use 2 decimal places for altitude in KML output.  Some places
232    used 8 decimal places which is appropriate for lat and long, but clearly
233    overkill for an altitude in metres and increases the file size
234    unnecessarily.
235
236  + Right-align bearing widget in print/export dialog.  The change to allow the
237    value to wrap round from 360 to 0 in 1.2.27 inadvertently made this control
238    left-aligned (due to incorrect wxWidgets documentation of the default style
239    for this control).
240
241  + (Unix version): Work around wxWidgets bug so that custom cursors work
242    under GTK3.
243
244  + (Unix version): Update GTK version reporting - report GTK3, and don't
245    bother to report subversions of GTK2 (it seems to be fairly arbitrary
246    which subversions wxWidgets defines constants for).
247
248  + Update code to work without warnings when using wxWidgets 3.1.0 (the
249    current development version).
250
251  + Make movie export code compatible with upcoming FFmpeg 3.5 release.
252    It should still work with the older versions that worked before this
253    change.  Reported by James Cowgill in https://bugs.debian.org/888334
254
255* cavern:
256
257  + Warn about 2 digit years.  We can't change the assumption that these are
258    19xx without risking breaking existing datasets, but the further we get
259    into this century, the more likely such an assumption is to catch someone
260    out.  The warning can easily be quashed by explicitly adding the assumed
261    "19".
262
263* The Spanish translation is now up to date once more, thanks to updates from
264  Evaristo Quiroga.
265
266* Merge French translation updates from Jean-Marc.
267
268* Fix transposed German Northing and Easting labels.  Fixes #95, reported by
269  milosch.
270
271* Fill in missing translations of "Easting", "Northing", "E" and "N" for
272  Bulgarian, Greek, Hungarian, Polish and Russian based on other existing
273  translated messages.
274
275* Align .pos file headings better with columns of coordinates below for
276  Indonesian and Polish.
277
278* Fix handling of the message string "error" before messages loaded.  If
279  there's an error loading messages, we need this message to report it.
280  Reported by Martin Sluka.
281
282* Fix a few compiler warnings.
283
284* img library: Fix extracting leaf survey name for survey title.  When there
285  are three or more levels of survey, we were taking everything after the first
286  dot rather than everything after the last dot.
287
288* Fix problems with testsuite on macOS:
289
290  + cavern.tst: Skip "ONELEG" testcase on case-insensitive filing systems
291    - this test isn't meaningful unless the filing system is case-sensitive,
292    but happens to fail if it isn't.
293
294  + cavern.tst: Workaround limitations of Apple's sed.
295
296  + aven.tst: Fix not to hang on macOS.
297
298  + smoke.tst: Remove aven testcases which duplicate those in aven.tst.
299
300* Clean up handling of support files in relocatable installs - this is now
301  detected at run time on macOS.
302
303* Split out macOS Aven.app creation into a make rule so it can be easily used
304  by the homebrew formula.
305
306* buildmacosx.sh:
307
308  + Fix when WX_CONFIG not specified - this was giving a confusing error like:
309    ./buildmacosx.sh: line 163: --cc: command not found
310
311  + Use wxWidgets 3.0.4.
312
313* Stop checking wx-config --ldflags as this option was removed in wxWidgets 2.6
314  and we currently require 2.8 or newer.
315
316Changes in 1.2.32 (2017-07-08):
317
318* aven:
319
320  + Make splays on printouts a darker shade of grey.  Reported by Erin Lynch
321    and Anthony Day.
322
323  + In export formats which include 3 dimensions (DXF, PLT, GPX, KML, JSON,
324    POS), the value in the Z dimension was negated.  Bug introduced by fixes
325    for export of rotated plans and tilted elevations in 1.2.27.  Reported by
326    Erin Lynch in #89.
327
328  + Ignore viewing angles for export formats which work in 3D.  When the
329    rotation and tilt controls are hidden in the export dialog we were still
330    using their values to transform the data, so if you set them with for one
331    export format which support them, then switched to an export format which
332    doesn't, you'd get bogus coordinates in the exported file.  Bug probably
333    introduced in 1.2.27 by fixes for exports of rotated plans and tilted
334    elevations.
335
336  + Fix exporting to skencil and Survex .pos formats.  When aven's export to
337    .pos was added in 1.2.19, the ordering didn't match up and since then .pos
338    export has produced skencil files and vice versa.
339
340  + Don't leave terrain on if loading terrain data fails.  Previously if you
341    clicked the terrain icon (or via the menu) with no terrain loaded, but no
342    terrain got loaded (e.g. because the survey data lacks an explicit
343    coordinate system, or because the file failed to load, or because you
344    cancelled the dialog) then the terrain icon/menu item was still changed to
345    "on".
346
347  + Disable texturing while drawing terrain.  Previously the terrain got a bit
348    darker when "Textured Walls" were enabled.
349
350  + Force a refresh when "Textured Walls" are enabled or disabled.  Previously
351    the display wouldn't update right away.
352
353* Manual:
354
355  + Document how to specify fixed point altitude in feet.
356
357  + Explain why *fix warns about unused fixed points
358
359* Building from source now requires a compiler with decent support for C++11.
360  If you're using GCC, then GCC 4.7 should suffice.  This should not be an
361  onerous requirement - e.g. Debian wheezy and Ubuntu trusty both have a recent
362  enough GCC.  If special options are needed, these should get probed for and
363  automatically.  Fixes building 1.2.31 with GCC < 6, reported by Wookey.
364
365Changes in 1.2.31 (2017-07-01):
366
367* aven:
368
369  + Use superscript 'g' symbol instead of word 'grads' in status bar.  This
370    conserves the limited space available, and we already do this in the
371    compass and clino indicators so it's more consistent too.
372
373  + Show one decimal place on measure line bearing.  Pointed out by Benedikt
374    Hallinger on the therion list, though I'm sure this has been asked for
375    before by others.
376
377  + Show gradient of the measuring line when both ends are stations.
378
379  + Allow selection of text in cavern log window.  Selection was disabled in
380    1.2.28 because it seemed you couldn't actually copy selected text to the
381    clipboard, but retesting this now actually works fine for me, both with
382    current git master with the change reverted, and with code just before the
383    original change.
384
385  + More robust parsing of cavern output (cleanly handle context highlighting
386    which extends beyond the end of the line).
387
388  + Allow showing duplicate legs as dashed lines or hiding them entirely,
389    with dashed now being the default.  Implemented by Patrick Warren.
390
391  + Also allow "Dashed" for splays and "Faded" for duplicate legs.
392
393  + Splay legs in surface data are also shown faded.
394
395  + Check environment variables VISUAL and EDITOR when looking for editor to
396    use when a warning or error is clicked on in the cavern log window.  The
397    specified editor may have a GUI or need to run in a terminal, so we have to
398    special-case each editor supported, and that means we can pass extra
399    options needed to position the cursor on the appropriate line/column.
400    Currently these editors are supported: gvim, nvim, vim, gedit, pluma,
401    emacs, nano, jed, kate.  Suggested by Wookey.
402
403  + Fix handling of non-square terrain data files - the X and Y dimensions were
404    swapped.  Reported by detrito.
405
406  + Improve parsing of DEM data with .hdr file.  Use documented defaults for
407    more values, and where we only support a subset of values (or a particular
408    value) check for unsupported values in more cases.
409
410  + When colouring by depth, fix colouring and texturing of polygons which
411    cross depth bands.  The previous problems were most obvious with high
412    chambers and long legs down deep pitches, especially in for surveys without
413    much vertical range.
414
415  + Support for drawing blobs using point sprites was added in 1.2.28,
416    but caching that this worked wasn't hooked up properly so the test to
417    see if this worked would happen at the start of each run.  This is now
418    cached as intended which should reduce start up time a little when blobs
419    are drawn in this way.
420
421  + Fix drawing of crosses with lines.  This is a fall-back case which is
422    rarely used as most OpenGL setups will handle a better method, but it was
423    resulting in crosses with a four-pixel square in the centre - now the
424    centre should be a single pixel.
425
426* cavern:
427
428  + Allow *data with no arguments to reset the current style - useful for
429    entering passage data where there are side passages.
430
431  + Fix hang processing file without newline at end.  This bug was introduced
432    by changes in 1.2.28.  Reported by Mark Brown.
433
434  + (Mac OS X and Microsoft Windows versions): Build with newer version of
435    PROJ library which fixes buggy handling of *fix with lat-long coordinates.
436    Also add a testcase to the testsuite to alert users building for themselves
437    with an affected PROJ version on any platform.  Reported by Ross Davidson.
438
439  + Fix cavern to handle Compass .DAT with no survey team.  Previously this
440    resulted in the bogus error: Expecting numeric field, found "FROM"
441    Reported by Erin Lynch.
442
443  + Handle UTF-8 "BOM" at start of .svx files.  Unicode doesn't recommend its
444    use, but Microsoft stuff seems to like to create files with it in, and the
445    error cavern currently reports for such files is very confusing, so it
446    seems best to just handle it.  Reported by Rob Eavis.
447
448  + Change a couple of messages to use double quotes for consistency with all
449    other messages.
450
451* extend:
452
453  + Now runs a bit faster.
454
455  + Splays are now carried over the extended survey.  The current handling
456    is simplistic, but should do a good enough job to be more useful than
457    discarding splays.  The splays at each station are all rotated together
458    based on the bearing between the stations either side of the current one
459    along the first path extended through that station.  This nicely handles
460    dead ends and the situation at the top or bottom of a pitch, and should
461    tend to pick an angle close to the passage orientation along a traverse.
462    It's weakest at junctions.  Feedback (especially examples which could
463    be handled better) most welcome.
464
465* French translation is now up to date again, thanks to Jean-Marc.
466
467* Remove erroneous menu shortcut markers from Polish translations.
468
469* Fill in some missing translations in several languages by using message
470  translations from therion.
471
472* Add note to *fix documentation to clarify the coordinate order with *cs
473  long-lat.  Issue raised by Ross Davidson.
474
475* Fix errors in documentation of *units: "DEG" should be "DEGS", and
476  "MINUTES" has been supported for ages but wasn't documented.  Reported by
477  Footleg.
478
479* Fix a few typos in the documentation.
480
481* Fix compilation warning with recent GCC.
482
483Changes in 1.2.30 (2016-10-03):
484
485* aven:
486
487  + (Microsoft Windows version): Fix crash when trying to print or export
488    (probably introduced in 1.2.28).  Reported by Brian Clipstone.
489
490  + Report error if terrain file contains no terrain data in area of survey.
491    Suggested by detrito.
492
493  + Errors when writing an export file were reported with the wrong filename
494    - the .3d file, not the filename we were trying to write to.
495
496  + Export to KML now supports exporting passages, walls and cross-sections.
497    Addresses the remainder of ticket #4.
498
499* Add man page for dump3d.
500
501Changes in 1.2.29 (2016-09-27):
502
503* aven:
504
505  + Fix SVG output with non-ASCII characters (the charset in the SVG file
506    is now set to UTF-8 not ISO-8859-1).
507
508  + (Microsoft Windows version): Fix error dialog on startup in pre-built
509    version.  Reported by Brian Clipstone.
510
511* Manual: Add link to TerrainData wiki page.  Omission highlighted by Erin
512  Lynch and "detrito".
513
514* Fix to build without FFmpeg/libav and with older versions, broken by changes
515  in 1.2.28.  Reported by James Begley.
516
517Changes in 1.2.28 (2016-09-24):
518
519* cavern:
520
521  + Show the contents of the line after error and warning messages while
522    processing survey data, and indicate the region of the line in many cases
523    in the same style that compilers such as GCC and clang use (using the
524    column number we already have, plus new width information).  Based on a
525    patch from Mateusz Golicz.
526
527  + Add column and width information for many more error and warning messages.
528
529  + Fix column for "Separator in survey name" warning.
530
531  + Improve warnings when using a backclino with range 0-180 degrees (reusing
532    the same machinery we already have for a forward clino with range 0-180
533    degrees).
534
535* aven:
536
537  + Include LRUD in printout/export of extended elevations, broken by
538    improvements to export of tilted elevations in 1.2.27.  Reported by Anthony
539    Day.
540
541  + Name <trk> tags in GPX output, so Garmin GPS units name the imported track
542    usefully.  Reported by Anthony Day.
543
544  + Remember scale from previous print or export operation in the same run of
545    aven.  Suggested by Stuart Bennett.
546
547  + Convert range indication below shown line to a highlight on that region
548    of the line in cavern log window.
549
550  + Fix colouring of error/warning without column in cavern log window.
551
552  + Fix click on error/warning without column in cavern log window.
553
554  + Fix highlight of translations of "error" or "warning" containing non-ASCII
555    characters.  This fix for this only works with a Unicode build of
556    wxWidgets, but as of wxWidgets 3.0, all builds are Unicode, so this
557    shouldn't be much of a problem as wxWidgets 2.x is close to obsolete now.
558    Reported by Mateusz Golicz.
559
560  + Disable selection of text in cavern log window - you can't currently copy
561    it to the clipboard, so until that's implemented it seems better to disable
562    the ability to select it.  Reported by Wookey.
563
564  + Avoid special "1000" scale entry when exporting.
565
566  + Show 1 page when "One Page" selected.
567
568  + Reload processed data when restricting view.  Fixes failure when
569    restricting view on data just processed via aven.  Spotted by Andrew
570    Atkinson and myself.
571
572  + Don't hide blobs and crosses behind terrain.  Reported by Jenny Black.
573
574  + Fix rendering of crosses using point sprites.  The texture being used was
575    misaligned relative to the image used for the visual fidelity check, so the
576    check always failed and point sprites would never be used.  Where point
577    sprites are supported, they're probably the fastest option - on my netbook
578    this change improves FPS by ~6 fold when displaying crosses for a large
579    survey.
580
581  + Support drawing blobs using point sprites.  About 5 times faster than using
582    lines on my netbook.
583
584  + Recheck how best to draw crosses and blobs on the first run after Survex
585    is upgraded (or downgraded) as the rendering code may have changed (we
586    already recheck when the OpenGL hardware or driver changes).
587
588  + Change "MPEG" export to be MPEG4 (.mp4) rather than MPEG1 (.mpg).
589    MPEG4 produces smaller output of higher quality, and should be widely
590    supported these days.  And I can't get the MPEG1 output to work without
591    buffer underflows, resulting in a file which doesn't play without
592    glitches.
593
594  + Add OGG video to the list of formats - it's more compact than the others
595    we currently list, though slower to write.
596
597  + Fix export to movie formats for which libav/FFmpeg needs to seek the file
598    being written.  This was broken by changes in 1.2.27.
599
600  + Overhaul movie export for the current FFmpeg API, fixing deprecation
601    warnings when building against a recent version.
602
603  + (Microsoft Windows version): Fix corrupted exported movie files.  1.2.27
604    changed the movie export code to allow writing to files with non-ASCII
605    characters in the names, but the new code failed to open the file in binary
606    mode, leading to corrupt output.  Fixes #81, reported by Erin Lynch.
607
608  * (Microsoft Windows version): Pre-built version now uses FFmpeg 3.1.3 for
609    movie export.
610
611  * (Mac OS X version): Pre-built version now uses FFmpeg 3.1.3 for movie
612    export.
613
614* Fix to build without FFmpeg/libav, broken by changes in 1.2.27.  Reported by
615  James Begley.
616
617* The Polish translation is now very close to being complete, thanks to a
618  substantial update from Mateusz Golicz.
619
620* Merge catalan translation updates from Adolfo Jayme.
621
622* (Microsoft Windows version): Map LANG_CHINESE to zh_CN not zh so Chinese
623  messages get used automatically.
624
625* cavern.tst: Remove random : from after ] - dash ignores the extra character,
626  but it causes this test to fail if /bin/sh is a different shell (e.g. bash).
627
628* cavern.tst: Add expected output for more testcases.
629
630* Remove unwanted execute bit from some testcase data.
631
632* Use https for more URLs which support it.
633
634Changes in 1.2.27 (2016-06-06):
635
636* aven:
637
638  + Right click on a survey in the survey tree now gives a pop-up menu
639    with "Hide others", which restricts the view to just that survey
640    and any subsurveys.  Right click on the root of the survey tree
641    gives a menu with "Show all" to undo any restriction in effect.
642    (Currently these are implemented by reloading the file and using
643    the same machinery as the --survey= command line option, but that will
644    probably change in the future).
645
646  + If there's a sub-survey restriction (from the --survey= command line
647    option or the new UI described above) it is now shown in brackets after
648    the survey tree root.
649
650  + When reloading a survey, preserve the current view position (previously
651    the view was recentred).
652
653  + When reloading a survey, actually preserve the current scale factor
654    (this was meant to happen, but the adjustment was applied in the
655    wrong direction).
656
657  + New "File->Extended Elevation..." menu item provides a way to generate
658    extended elevations for simple cases without having to use the command
659    line.  Suggested by Fleur Loveridge.
660
661  + Don't process key presses if accompanied by an unexpected modifier key.
662    In particular, this means that aven no longer interferes with Alt+<function
663    key> (which is typically handled by the desktop) and Alt+<letter> (which is
664    typically a menu short cut).  Reported by Владимир Георгиев.
665
666  + Reduce file loading time by ~5%.  The station name compare function was
667    something of a hot spot, and optimising it yielded a nice improvement.
668
669  + Allow splay legs to be disabled in when printing and exporting.  Mostly
670    addresses #60.
671
672  + SVG export now shows splay legs thinner and in grey.  See #60.
673
674  + Fix export of rotated plans and tilted elevations - previously plans were
675    always aligned with North up, and elevations which weren't exactly side on
676    were exported as plans.  Reported by Stuart Bennett.
677
678  + Fix offset bounding box for exported elevations.
679
680  + In print/export dialog the bearing value now wraps if you scroll up past
681    360 or down past 0.
682
683  + Fix greying out of LRUD-based controls in the print/export dialog when the
684    view is tilted (i.e. not plan or elevation).  This stopped working in
685    1.2.18 when the pan and tilt spin controls were changed from integer- to
686    real-valued ones.
687
688  + Printouts now show LRUD as pale grey arrows from the station they are
689    measured from.  Based on patch from Michael Sargent.  Closes #65.
690
691  + Take LRUD into account for printout size.  Fixes #72, reported by Erin
692    Lynch.
693
694  + Update movie export code to work with latest version of FFmpeg.
695
696  + Make "Show Log" a toggle, so you can click on the button to take a look at
697    the log, and a second click returns you to the survey view.
698
699  + (Microsoft Windows version): Open the font file in binary mode - it looks
700    like we were lucky and the font file (or at least its current version)
701    would have loaded OK in text mode despite being binary data.
702
703  + (Microsoft Windows version): Exporting to files with non-ASCII filenames
704    should now work.
705
706* cavern:
707
708  + Allow tape or backtape to be omitted.  Reported by Erin Lynch.
709
710  + Grid convergence is now corrected for when using automatically
711    calculated declinations (*declination auto <X> <Y> <Z>).  Requested
712    by Mateusz Golicz on the mailing list.
713
714  + Clear any cached calculated declination upon another *declination auto
715    with different coordinates.  Previously if the date stayed the same,
716    a previously cached declination for the old coordinates was used.
717
718  + Fix check for end of version number array in *required.   We would check up
719    to 12 version components, the last 9 being bogus.  In practice, *require is
720    only likely to be used with up to three components, so this wouldn't be an
721    issue.
722
723  + *begin with an invalid prefix could cause a crash in some cases.  Fixed
724    by patch from Colin Watson.
725
726  + Report column locations for errors to do with readings.
727
728* Merge translation updates from Jean-Marc.
729
730* img library: Better document which members can be set when writing.
731  Highlighted by email query about use of img API from Владимир Георгиев.
732
733* Document how *declination interacts with *calibrate declination if both are
734  used in the same dataset.
735
736* doc/3dformat.htm: Update details of how changes to the current label buffer
737  are encoded to reflect changes in v8.  Reported by Angus Sawyer.
738
739* Use docbook2man instead of docbook-to-man to generated Unix man pages
740  from SGML source.  The latter seems to be no longer actively maintained, and
741  docbook2man now does a similarly good job.
742
743* Use https for survex.com links, and for other sites which support it.
744
745Changes in 1.2.26 (2016-01-07):
746
747* aven:
748
749  + (Microsoft Windows version): Fix to be able to process .svx files with
750    cavern again.
751
752* (Microsoft Windows version): Simplify upgrading process with innosetup
753  installer - if Survex is already installed, we now just install to the same
754  location and use the same start menu folder.
755
756* (Linux version): survex.spec: Update for filetype metadata change in 1.2.25.
757  Fixes #79, reported by James Begley.
758
759* (Linux version): survex.spec: Fix to work with RPM 4.13.  Fixes #79, reported
760  by James Begley.
761
762Changes in 1.2.25 (2016-01-05):
763
764* aven:
765
766  + Drop broken code which attempts to fix 2D pitches.  Fixes #73, reported by
767    Erin Lynch.  #76 tracks the issue the removed code was trying (but failing)
768    to address.
769
770  + When animating, don't try to update station info based on mouse movement
771    over the survey tree.
772
773  + Further improve code to handle cavern subprocess in aven.
774
775  + Fix jump to error for filenames containing colons when the error location
776    doesn't have a column number.  Bug noted by Jenny Black.
777
778  + If we encounter bad UTF-8 in cavern output, replace it with a red and white
779    ? in a diamond (previously we gave up showing output at the first bad
780    sequence).  This can happen if you process a .svx file which isn't UTF-8
781    encoded.
782
783  + (Unix version): Don't try to set the terminal window title when opening an
784    editor from the cavern log window - gnome-terminal no longer supports this,
785    and there doesn't seem to be a portable option for specifying the title for
786    terminals which do still support this.
787
788  + (Microsoft Windows version): Also quote for cmd.exe so that paths with
789    spaces in work reliably.  Reported by Marco Cotto.
790
791* cavern:
792
793  + Improve error for mismatched fore/back-sight plumbs, reported by Andy
794    Edwards (see #78).
795
796  + Fix to use correct sd for backcompass.  We were using zero instead, the
797    most obvious effect of which was that the threshold for warning about
798    differing COMPASS and BACKCOMPASS was about 71% of what it should have
799    been, so we were warning in more cases than we should have been.
800
801  + Implement support for specifying a length on backsights - if you're using
802    something like a disto-x, you'll get a distance reading for the backsight
803    too.  Fixes #71, reported by Erin Lynch.
804
805  + Make line counting more robust to mixed line ends.  Noticed in example file
806    from Pete Smart (see #69).
807
808* extend: New --show-breaks option which adds a leg flagged as surface survey
809  between each points at which a loop has been broken.  Suggested by Jenny
810  Black.
811
812* (Unix version): Update filetype metadata to work with modern desktops.
813
814* Fix incorrect reporting of errors reading and writing processed survey data.
815  Since 1.2.8, the error strings corresponding to IMG_CANTOPENOUT,
816  IMG_BADFORMAT and IMG_DIRECTORY have been mixed up (this doesn't affect
817  external programs using the img library, only Survex).  Reported by Jenny
818  Black.
819
820* Add missing options to extend man page and --help output.  Noted by Jenny
821  Black.
822
823* Document Document Ctrl+cursor keys for rotating and tilting in aven man page.
824
825* Fix broken SGML markup in manual.
826
827* Fix typo in manual reported by Jenny Black.
828
829* Update vim syntax file for newer commands, etc.
830
831* Minor translation updates.  Thanks to Piotr Strębski and Jean-Marc.
832
833* Fix to compile with FFmpeg 2.9.  Reported by Andreas Cadhalpun in
834  https://bugs.debian.org/803863
835
836* Stop maintaining ChangeLog files.  They make merging patches harder, and stop
837  'git cherry-pick' from working as it should.  The git repo history should be
838  sufficient for complying with GPLv2 2(a).
839
840* (Microsoft Windows version): The installer requires admin privileges on Vista
841  and later and OS versions older than Vista are past end of life, so drop code
842  which tries to set up the registry differently depending if we have admin
843  privileges or not.
844
845Changes in 1.2.24 (2015-09-23):
846
847* aven:
848
849  + (Microsoft Windows version): Fix the cavern log window.  Reported by Brian
850    Clipstone.
851
852  + (Microsoft Windows version): Add workaround to avoid breakage in Therion.
853    Reported by Jenny Black.
854
855  + If wx was built with thread support, aven now runs cavern from a separate
856    thread, which works much better under wxMSW (where we can't use select),
857    and also seems a bit smoother on Linux.
858
859  + Fix handling of encoding of filenames when the operating system has no
860    locale installed corresponding to the language selected for Survex's
861    messages.
862
863  + Undo accidentally committed debugging code which was sending message to
864    the terminal in 1.2.23.
865
866* (Linux version): configure now looks first for wx-config-3.0, which Fedora's
867  wx3 packages have.  Reported by James Begley.
868
869* Indonesian translation fully up to date again.
870
871* Manual: Document anonymous stations, based on the text from NEWS.  Reported
872  by Wookey.
873
874Changes in 1.2.23 (2015-09-06):
875
876* aven:
877
878  + Updating the cavern log window is now much smoother, especially on slower
879    machines.
880
881  + Show "busy" mouse cursor while processing survey data.
882
883  + Fix an assertion if you try to start processing a survex file while one is
884    already being processed.
885
886  + Processing a .svx file with an error now still adds it to the file history.
887    Reported by Martin Green.
888
889  + Fix the orientation of the starting end of tubes.
890
891* cavern:
892
893  + New *ref command to allow specifying an external reference (e.g. where to
894    find the original survey notes).
895
896  + Drop support for showing percentage progress in cavern.  It's confusing in
897    a multiple-file dataset as it shows progress in the current file so jumps
898    around.  It also slows down processing, and on a slow machine you'd don't
899    want that, while on a fast machine processing isn't slow enough for the
900    progress display to be useful.
901
902* French translation is now completely up to date, thanks to Michel Bovey.
903
904* Bundle proj's EPSG and ESRI code lists in the installers for MS Windows and
905  OS X so that things like "*cs EPSG:29903" work.  Reported by Graham Mullan.
906
907* (Microsoft Windows version): Process survey data with aven rather than
908  running cavern.
909
910* (Microsoft Windows version): Installer built with InnoSetup 5.5.6 (recent
911  releases have been built with 5.5.3) to see if that solves Ray Duffy's
912  reported issue with not having file associations for .svx files created.
913
914Changes in 1.2.22 (2015-08-17):
915
916* aven:
917
918  + Ensure that the window has a depth buffer.  Whether it does by default
919    seems to vary depending on OS and maybe graphics card.  Fixes #55 (terrain
920    is no longer visible through itself), and also the rendering of passage
921    tubes.  Thanks to Martin Green for pointing me in the right direction for
922    finding this fix.
923
924* cavern:
925
926  + Fix *declination with an angle to actually work.
927
928  + Fix assertion if we try to identify a hanging survey by an anonymous
929    station.
930
931  + Improve errors for invalid survey names in *begin, *end, *equate and
932    *export.
933
934Changes in 1.2.21 (2015-07-28):
935
936* aven:
937
938  + Fix exporting to KML and other text-based formats to always use "." for the
939    decimal separator - previously "," would be used when the user's locale
940    specified this for the decimal separator.  Reported by Jan Schorn.
941
942  + Implement exporting of survey legs in KML format.
943
944  + Put "paddle" placemarker icons on stations in exported KML files, using the
945    same colour coding for entrances, fixed points and exported points as aven
946    does.
947
948  + Remove the "Coordinate projection" field from the print dialog, as it isn't
949    relevant there.  Reported by Wookey.
950
951  + Fix the initial scale for small caves (since 1.2.18 the initial scale has
952    been too small).  Reported by Wookey.
953
954  + Don't rescale if the same file is reloaded, but adjust the volume diameter
955    as appropriate.
956
957  + Use wxGetenv() to read the SURVEXEDITOR variable, so we can accept Unicode
958    values on Windows.
959
960* cavern:
961
962  + Fix coordinate systems using latitude and longitude - PROJ.4 wants these in
963    radians, but we were passing degrees, which would generally cause the
964    conversion to the output coordinate system to fail.  Reported by Wookey.
965
966  + Fix *fix with standard deviations when *cs is in use, give an error for use
967    of *fix with standard deviations before *cs.
968
969  + Add new *declination command with support for setting the declination
970    automatically from the IGRF model based on the survey date.  Thanks to the
971    Therion developers for the IGRF support code, which we're reusing.
972    Fixes #54, reported by Wookey.
973
974  + Allow the units for the zero error to be specified, making it easier to
975    specify calibration with a scale if you measure the zero error externally
976    (rather than using the instrument itself).  Fixes #61, reported by Andrew
977    Atkinson.
978
979  + Report the error from PROJ when coordinate conversion fails as part of the
980    actual error rather than on a separate line.
981
982  + Fix use after free after *solve.  This only occurs if a leg between the two
983    exact same stations appears right before and right after the *solve, which
984    is unlikely in real data, but the testsuite has an instance of this.  This
985    was introduced by the repeat leg averaging added in 1.2.17.
986
987  + Fix small memory leak when solving network.  This doesn't really matter
988    when solving at the end of processing as cavern will exit after that, but
989    if *solve is used we continue processing after solving.
990
991* Remove compatibility handling for specifying a country variant of a language
992  in SURVEXLANG using "-" with a lower case country code (e.g. "en-us") - we
993  changed to the standard "en_US" way back in 2001.  This code was mangling
994  character sets with a "-" in, and is no longer useful.
995
996* Ignore any "@<something>" modifier in the language code.
997
998* Improve documentation of magnetic declination handling, and cover the new
999  "*DECLINATION" command.
1000
1001* Document aven's command line options in the manual and its man page.
1002  Reported by Jenny Black.
1003
1004* Point to '*case' and '*truncate' from the 'SEE ALSO' sections of each other's
1005  documentation.
1006
1007* Remove references to SpeleoGen from the documentation - it hasn't been
1008  updated for many years, and can't read recent versions of the .3d format.
1009
1010* Strip documentation references to obsolete versions of MS Windows.
1011
1012* doc/HACKING.htm: Update list of debian packages to install to build from git.
1013
1014Changes in 1.2.20 (2015-06-26):
1015
1016* aven:
1017
1018  + When printing, use the top margin rather than the right margin to calculate
1019    the height of the printable area.  In practice, the two values seem to be
1020    the same or very similar by default.
1021
1022  + Avoid assertion if the about dialog image fails to load.  Reported by Phil
1023    Maynard.
1024
1025  + Optimise the size of the about dialog images.
1026
1027  + Add support for reading terrain data which isn't in a .zip file.
1028
1029  + Force a refresh after loading terrain data so that it gets displayed right
1030    away.
1031
1032  + Make checks for terrain data extensions in zip files case insensitive.
1033
1034  + If reading terrain data fails, always report an error and never try to
1035    display it.
1036
1037* cavern: Allow clino readings in diving style data, suggested by Andrew
1038  Atkinson.  Currently these readings are ignored, but a future version will
1039  check that they're consistent with the angle given by the depth gauge and
1040  tape, and perform suitable averaging.
1041
1042* Remove lingering traces of svxedit.
1043
1044* configure: Fix to allow compiling without libav/ffmpeg, as was possible
1045  before 1.2.19.
1046
1047* (Unix version): Install the filetype and aven application icons under
1048  /usr/share/icons/hicolor, which is where they're expected to be these days.
1049
1050* (Unix version): Add %f to Exec in survex-aven.desktop.
1051
1052* (Mac OS X version): Remove useless extra copy of about box images from OS X
1053  disk image.
1054
1055* (Mac OS X version): Only ship one copy of each of the translations.
1056
1057* (Mac OS X version): Reduce the size of the aven binary by disabling a load of
1058  libav features we don't use.
1059
1060* (Microsoft Windows version): Reduce the size of the aven binary by disabling
1061  a load of libav features we don't use.
1062
1063* (Microsoft Windows version): Update message files to fix a missing Chinese
1064  message in the installer.
1065
1066Changes in 1.2.19 (2015-06-18):
1067
1068* aven:
1069
1070  + Fix exporting to GPX, KML and HPGL, which all failed to write the header to
1071    the exported file in 1.2.18.
1072
1073  + Add exporting to Survex .pos format.
1074
1075  + If the measuring line isn't currently active, pressing "Escape" will now
1076    exit full screen mode.
1077
1078  + (Mac OS X version): Change the shortcut for full screen mode to be the
1079    standard Ctrl+Command+F (rather than Shift+Command+F which we have been
1080    using since 1.2.7).
1081
1082  + (Mac OS X version): When we centre the view on the station this can
1083    generate a mouse move event, so clear the variable which says we are
1084    dragging before we process a left click on a station.  This avoids random
1085    rotations of the survey when clicking on a station, reported in #47 by Hugh
1086    St. Lawrence.
1087
1088  + (Mac OS X version): Force use of a non-native toolbar to stop the toolbar
1089    icons from being rescaled and looking fuzzy.
1090
1091  + (Mac OS X version): Remove code added in 1.2.18 which tries to set stop the
1092    toolbar icons from being rescaled, but which requires an unreleased version
1093    of wxWidgets, had a typo in, and doesn't actually seem to work anyway.
1094
1095  + (Mac OS X version): Drop out of full screen mode if the mouse is mode to
1096    the top of the screen, since we can't seem to display the menu bar in this
1097    case like we do on other platforms.
1098
1099  + (Mac OS X version): Enable aven's movie export feature.
1100
1101  + (Mac OS X version): Enable wxDisplay when building wxWidgets to better
1102    support multi-monitor setups.
1103
1104  + (Mac OS X version): Silence warning visible when aven is run from a
1105    terminal about a missing CFBundleTypeRole.
1106
1107  + When reading terrain data from a .zip file, report an error if the .zip
1108    file is bad, or if it doesn't contain any terrain data we recognise.
1109
1110  + Tweak error message in terrain reading code to distinguish two failure
1111    cases.
1112
1113  + Add viewing angles and scale to footer, and shorten some of the other items
1114    to make room for this extra information.  (Fixes ticket #52, reported by
1115    Erin Lynch)
1116
1117  + If the footer is wider than the printout width, scale down the font used
1118    so that it exactly fits; if the footer is narrower, than space out the
1119    items in in so it uses the full width.
1120
1121  + If the saved size for aven's window exceeds the current display size
1122    (mostly likely because we're now plugged into a smaller monitor), then
1123    reduce the size of the window to fit the display.  If the saved size is <
1124    (480x320), increase it to at least that, as aven isn't usable in a smaller
1125    window.
1126
1127  + Remove crude bodge which tries to pick a nicer initial window size when
1128    using wxWidgets without wxDisplay on a multi-monitor setup - aven now opens
1129    with the same size window it had when it was closed, so the initial size is
1130    only relevant on the first ever run.
1131
1132* Assorted translation updates.  Notably Indonesian is at 100% again.
1133
1134* Stop trying to catch and report signals.  The only real reason to do it is so
1135  we can say "Bug in program detected! Please report this to the authors"
1136  before we exit, but when the program crashes that's pretty obvious.  In aven
1137  we try to pop up a message box for this message, which may fail due to
1138  whatever caused the signal, while with the command line tools there's no
1139  great benefit over just letting the shell report the signal.
1140
1141* Use pkg-config to probe for libav and proj, which sorts out the correct flags
1142  for building on OS X against a static install of libav.
1143
1144Changes in 1.2.18 (2015-06-03):
1145
1146* aven:
1147
1148  + Add support for reading terrain data (from a zip file containing either an
1149    SRTM .hgt file, or an ESRI .bil file and associated metadata files), and
1150    rendering it as a transparent surface.
1151
1152  + Remove actions from 'Orientation' and 'Rotation' menus which you wouldn't
1153    sanely want to perform from the menu.
1154
1155  + Create a "Colour by" submenu of the "View" menu to house the various
1156    colouring options.
1157
1158  + Add "Colour by Gradient" and "Colour by Length".
1159
1160  + Make the button to dismiss the "About" dialog "OK" rather than "Close",
1161    which seems more logical, and also allows the dialog to be closed by
1162    pressing "Escape".
1163
1164  + Destroy any existing clipping region before we write the page footer.
1165    Hopefully solves ticket #52, reported by Erin Lynch.
1166
1167  + Don't round bearing and tilt angles to integers when printing and
1168    exporting.
1169
1170  + Add passage export for EPS format.  (Partly addresses ticket #4)
1171
1172  + Add JSON export.  This should be regarded as experimental, and the format
1173    is quite likely to change.
1174
1175  + Pressing F6 now toggles the display of rendering stats, currently FPS
1176    (Frames Per Second) and the number of triangles in the terrain mesh.
1177
1178  + Add a menu item and toolbar button to show the cavern log window if the
1179    currently shown survey data was processed by aven.  Reported by Hugh St
1180    Lawrence in #47, and by Dave Clucas and others previously on the list.
1181
1182  + Add "Save Log" button to Aven's cavern log window.
1183
1184  + In cavern log window, highlight "error" markers in red and "warning"
1185    markers in orange.
1186
1187  + Rework code to read cavern's output.  In particular, we no longer mix
1188    buffered and non-buffered system calls.
1189
1190  + Aven's support for reading colours and font sizes for printouts from
1191    print.ini has never worked - the contents of the ini files are ignored due
1192    to a bug which has been there since the code was added in 2005 - but nobody
1193    has ever complained.  So just strip out that code entirely - we should
1194    support setting the colours and font sizes, but a GUI interface for setting
1195    them would be better.
1196
1197  + Fix to compile with a Unicode build of wxWidgets 2.8.  Reported by Bill
1198    Gee.
1199
1200  + Take the width of the messages used above the compass and clino into
1201    account when calculating how much space to allow for them - now the labels
1202    won't overlap or be cut off in translations where they are long.
1203
1204  + (Mac OS X version): Attempt to address the size of the toolbar icons.
1205
1206* cavern:
1207
1208  + Reject *fix with SDs which aren't all positive.  (fixes#2, reported by
1209    susscorfa).
1210
1211  + Use the currently set units when outputting measurements in warnings,
1212    errors, and the stats at the end of the run.  Requested by Bill Gee.
1213
1214  + Include column number when a *include file isn't found.
1215
1216  + Show 'error' in front of error messages, like we show 'warning' in front of
1217    warnings.  Fixes #48, reported by Wookey.
1218
1219  + Increase the threshold for warning that fore and back measurements differ
1220    from 2 SDs to 3 SDs.
1221
1222* findentrances: If the 3d file specifies the coordinate system, use it.
1223
1224* svxedit: Remove svxedit - while an editor with built-in knowledge of survex
1225  would be nice to have, svxedit doesn't really offer that, and it looks ugly
1226  in a modern desktop.
1227
1228* If we run out of memory while reading a processed survey data file, include
1229  the filename in the error message.
1230
1231* Many translation updates - notably Indonesian and Russian are now the two
1232  most complete translations.
1233
1234* (Microsoft Windows version): Add code page 1252 mappings for fancy quotes.
1235
1236* Transliterate gradient and infinity symbols if the current character set
1237  lacks them.
1238
1239* Add SVG version of .plt icon.
1240
1241* Manual:
1242
1243  + Add complete list of quantities you can set SDs for.  Thanks for Wookey for
1244    highlighting that the previous list was incomplete.
1245
1246  + Document averaging of a group of repeated readings.
1247
1248  + Add a link to the sample data from the manual.
1249
1250  + Remove references to contact addresses which are no longer there.  Remove
1251    offer to post people floppies, and references to a CD image which isn't
1252    available for download.
1253
1254* Remove non-breaking spaces from the diffpos and extend manual pages, as they
1255  actually make the output formatting worse (presumably these used to work
1256  around a since-fixed bug in one of the docbook processing tools).
1257
1258* doc/TODO.htm: Update.
1259
1260* Fix to compile without warnings with 'g++ --std=gnu++11'.
1261
1262Changes in 1.2.17 (2015-02-24):
1263
1264* MacOS X version:
1265
1266  + Update INSTALL file with current status.
1267
1268  + Aven.app now has a custom icon.
1269
1270  + Add icons for all the filetypes supported.
1271
1272  + Add Finder actions for .svx, .3d, .plt and .pos files.
1273
1274  + aven: Hide the status bar and tool bar in Full Screen mode, as wx doesn't
1275    currently do this for us.
1276
1277  + aven: Fix short-cut for toggling Full Screen mode.
1278
1279  + aven: Make "About" menu item appear.
1280
1281  + aven: Fix "Close" button in about dialog.
1282
1283  + aven: Make custom cursors black with a white outline to match the standard
1284    OS X cursor.
1285
1286  + svxedit: Now wrapped up in an application bundle as svxedit.app.  It
1287    still doesn't really work like a standard app though - e.g. you can't load
1288    files from Finder (instead run svxedit.app and use File->Open), the font
1289    size of most menu items is wrong, the icon for the app is the wish icon
1290    rather than the svxedit icon, shortcuts use Ctrl not the Cmd key, and
1291    probably more.  I'd probably recommend using another editor (OS X comes
1292    with TextEdit.app for example).
1293
1294  + The documentation is now in a "Docs" directory alongside the apps, rather
1295    than in the rather less obvious "share/doc/survex" directory.
1296
1297  + Default to building for x86_64, since all modern Macs are 64 bit.
1298
1299  + Disable use of liblzma when building wxWidgets for OS X, which was
1300    preventing the build from working on OS X 10.6.8.
1301
1302  + Download wx sources from SF via redirecting link.  Thanks to David A.
1303    Riggs.
1304
1305  + buildmacosx.sh: Handle the mount point for the disk image containing a
1306    space.
1307
1308  + Link with a static build of PROJ for doing coordinate system conversions.
1309
1310  + Build wx with --disable-webview to avoid a compilation failure on OS X
1311    10.10.1.
1312
1313  + Use wx-config --cc and --cxx to get the compilers to use for building
1314    everything else, as wx adds options to them which otherwise cause linking
1315    errors.
1316
1317  + The diskimage (.dmg) file is now compressed with bzip2, which gives a
1318    smaller download.  This means OS X 10.4 is required, but we probably
1319    already need at least 10.5 because that's the minimum version which the
1320    wxWidgets build supports by default.
1321
1322  + Remove unused files and copies of files from the diskimage.
1323
1324* cavern: If the same leg is repeated consecutively, average the readings and
1325  treat as a single leg.
1326
1327* dump3d: Report SEPARATOR used by the file being read.
1328
1329* aven.svg: Fix visual glitch in SVG icon for aven.  Noted by David A. Riggs.
1330
1331* aven:
1332
1333  + Greatly reduce flicker when mouse is moved to the top of the screen in full
1334    screen mode and the menu bar reappears.
1335
1336  + For export formats where scaling is supporting, aven now actually uses the
1337    scale specified in the export dialog (previously it ignored this and used
1338    1:500).
1339
1340  + Reimplement animation so that it's based on angular change per unit of
1341    elapsed time, rather than averaging the time take for the last two scene
1342    redraws.  This gives smoother animation in the face of variable load and
1343    scene redraw time, and should be more consistent between platforms.
1344
1345  + Switching to a point of the compass during auto-rotation now jumps straight
1346    there rather than the two animations fighting.
1347
1348  + Reduce the maximum auto-rotation speed, as the previous limit was uselessly
1349    fast.
1350
1351  + Disable stepping the rotation angle when animating (previously we only did
1352    when rotating).
1353
1354  + Speed up start-up a bit - rather than loading icons from individual PNG
1355    files on disk, compile them into the aven binary.
1356
1357* (Unix version): Add "MimeType" field to desktop files so that file
1358  associations work out of the box with modern desktop environments.
1359
1360* Add start of Hungarian translation from Imre Balogh.
1361
1362* Merge in many updates to the Russian translation from "vsuhachev".
1363
1364* Assorted minor updates to other translations.
1365
1366* Create scalable (SVG) versions of file type icons.
1367
1368* doc/manual.sgml: Remove $Id and $Date markers, as they don't get expanded now
1369  we're using git.
1370
1371* tests/: Improve test coverage in a few places:
1372
1373  + Extend tests of fore and back sights to test calibration of the back
1374    compass.
1375
1376  + Test "Can't calibrate angular and length quantities together" error.
1377
1378  + Check that "*set names ." works when "." is also the decimal point.
1379
1380Changes in 1.2.16 (2014-10-17):
1381
1382* aven: Add KML export (stations only currently).
1383
1384* aven: Allow measuring line to measure from anonymous stations.  (Fixes #44)
1385
1386* aven: Fix corrupted names in exported files.
1387
1388* aven: Fix error log window under wxWidgets >= 2.9 to include the system
1389  information before the first log message like it does under wxWidgets 2.8.
1390
1391* cavern: Add support for "*cs JTSK" and "*cs JTSK03".
1392
1393* tests/: Improve test coverage.
1394
1395* Translation updates for many languages, plus the start of translations to
1396  Greek and Polish.
1397
1398* Fix to build against wxWidgets 3.0 built with assertions disabled.  Reported
1399  by Martin Sluka.
1400
1401* Fix warnings when compiling with clang (which is the default compiler on
1402  Mac OS X).  Reported by Martin Sluka.
1403
1404Changes in 1.2.15 (2014-08-14):
1405
1406* cavern: The *cs command now also supports "long-lat", "s-merc" (for "Web
1407  Mercator"), EPSG and ESRI codes, "eur79z30", "ijtsk" and "ijtsk03".  This
1408  means that we now support all the coordinates systems which Therion does,
1409  except for a few which don't have X=East and Y=North.  The documentation
1410  for *cs has also been improved.
1411
1412* aven: We no longer persist full screen mode between runs - it's not a
1413  standard behaviour of desktop programs, and it's too easy to go into full
1414  screen mode from the menu and then not be able to get out again because you
1415  don't know the required key shortcut. (ticket#39)
1416
1417* aven: When in full screen mode, moving the mouse to the top of the screen now
1418  makes the menu bar appear.  This provides a non-shortcut way out of full
1419  screen mode, as well as making it easier to perform other operations while in
1420  full screen mode.  The current implementation gives an annoyingly flickery
1421  transition, but hopefully we can improve this in future. (ticket#39)
1422
1423* (MacOS X version): If built with wxWidgets >= 3.1.0 (which is still in
1424  development), we now call EnableFullScreenView() which improves the full
1425  screen mode experience on OS X 10.7 and later.
1426
1427* img library: Improve documentation for img_ERROR_INFO.
1428
1429* tests/: Ship some missing .out files and compare.tst.
1430
1431* tests/: cavern.tst testcase back2 is now actually used.  Fix a bug in this
1432  testcase, and extend it to cover a variant of the situation reported as a bug
1433  in therion by Bill Gee to the therion list.
1434
1435* (Linux version) survex.spec: Add run-time requirement on proj and proj-epsg
1436  for the survex package and on tk for the svxedit package.
1437
1438Changes in 1.2.14 (2014-07-05):
1439
1440* img library: Add ability to store a PROJ4 string describing the coordinate
1441  system in use in 3d v8 files.
1442
1443* aven: If the 3d file specifies a coordinate system, then use it for exporting
1444  to formats which need to know (currently GPX).  If the input file doesn't
1445  specify the coordinate system, allow the user to enter a PROJ4 string in the
1446  export dialog.
1447
1448* aven: You can now quickly zoom to a particular area by holding down the
1449  "Shift" key and dragging with the left mouse button to create a rectangular
1450  "rubber band box" around the area you wish to zoom to.  If you release the
1451  "Shift" key while still dragging, the box is centred on the start point
1452  rather than having one corner there.
1453
1454* aven: Fix exporting of passage tubes in elevations and extended elevations
1455  - previously up and down were getting drawn across the page!
1456
1457* aven: Fix "Cancel" to work on the print/export dialog, broken by changes in
1458  1.2.13.  (Reported by Brian Clipstone)
1459
1460* aven: Fix the conditions on which the menu item "Cancel measuring line" is
1461  enabled - previously it was hard to actually cancel it via the menu.
1462  Reported by Hugh St Lawrence.
1463
1464* aven: Fix wx assertion failures when showing hit test debug view on platforms
1465  such as 64-bit Linux.
1466
1467* aven: When viewing from above, show "Plan" above the "clino" which indicates
1468  the tilt angle (instead of "Elevation -90°").
1469
1470* aven: The extended font data now loads faster, and also uses less memory on
1471  64-bit platforms.
1472
1473* aven: Dragging the vertical divider between the side panel and the 3D view
1474  now only updates when you finish the drag, as redrawing continuously just
1475  looks clunky except on an ultra-fast machine.
1476
1477* aven: (German translation) Abbreviate "Blickrichtung" so it doesn't overfill
1478  the space available in the aven UI.
1479
1480* cavern: Add a *cs command to allow setting the coordinate system for *fix
1481  commands, and the coordinate system used for processed survey data.  The
1482  latter is now stored in 3d v8 format files.
1483
1484* cavern: Add support for 'L' flag (exclude from length) in Compass .dat files
1485  and handle it in the same way as the "DUPLICATE" flag in .svx files.
1486
1487* cavern: If there's more than one *fix command with coordinates, still
1488  actually fix the second and subsequent ones, to avoid triggering bogus errors
1489  about unconnected surveys.
1490
1491* cavern: If there's more than one *fix command with coordinates, report the
1492  station name of the previous one, plus the file and line number where it was.
1493
1494* cavern: Fix handling of the rather contrived case of *fix with no coordinates
1495  followed by *solve and then another *fix with no coordinates not to access
1496  freed memory.
1497
1498* dump3d: Report any specified coordinate system.
1499
1500* doc/3dformat.htm: Update to document how the coordinate system is stored.
1501
1502* (Microsoft Windows version): Include dump3d in the installer.
1503
1504* Fix a compiler warning.
1505
1506* Improve test coverage.
1507
1508Changes in 1.2.13 (2014-05-15):
1509
1510* aven: Fix --print option to wait for printing to happen before exiting
1511  (previously it would exit right after opening the print dialog, so you
1512  couldn't actually print anything out using it).
1513
1514* aven: Increase the threshold for how close the pointer needs to be to a
1515  station from 5 pixels to 7 to try to help touchscreen users.  Reported by
1516  Hugh St Lawrence.
1517
1518* aven: Add "fat finger" mode, toggled by pressing F2, to allow investigating
1519  if increasing the minimum pointer to station threshold helps Hugh's problems
1520  with using aven on a touch screen device.
1521
1522* aven: The measuring line was unable to see stations which had just been
1523  revealed by toggling surface or underground legs on - this is now fixed.
1524
1525* aven: Add "hit test grid debug" mode, which shows the hit test grid and how
1526  many entries are in each box (toggled by F3).
1527
1528* aven: Pressing F4 now allows the user to toggle wxWidgets assertion messages
1529  off and back on.
1530
1531* aven: Create the empty hit-test grid data structure lazily, to reduce start
1532  up time a little.
1533
1534* cavern: Improve messages which talk about "tags" and/or "prefixes" in *begin
1535  and *end commands to instead talk about "survey names".
1536
1537* cavern: For ages cavern has warned if you reentered a survey, but this
1538  warning was suppressed if it occurred at the same line of the same file as
1539  the survey was first entered, but this can only happen if you include the
1540  same survey file more than once, which isn't a sensible thing to do for a
1541  file with actual survey data in (you might reasonably do it to set up survey
1542  grade details or something like that).  The warning is now given in this
1543  situation too.
1544
1545* cavern: After 5 warnings about reentering a survey we give up warning about
1546  it, but we used to keep reporting where the survey was originally entered -
1547  this secondary diagnostic message is now silenced when the main message is.
1548
1549* (Microsoft Windows version): Compile C code with optimisation on.
1550
1551* Add the start of a Russian translation, with messages take from therion.
1552
1553* Minor translation updates to French.
1554
1555* Fix compiler warning from GCC.
1556
1557* Testsuite improvements:
1558
1559  + Test that "..." anon station works.
1560
1561  + cavern.tst: Check number of errors returned by all testcases which should
1562    fail and give an error count.
1563
1564  + cavern.tst: Fix to actually fully test everything when builddir != srcdir.
1565
1566Changes in 1.2.12 (2014-04-14):
1567
1568* aven: Fix measuring line to show change in altitude rather than altitude
1569  itself (accidentally broken by changes in 1.2.11).  Reported by Brian
1570  Clipstone.
1571
1572* aven: Fix printing when built with wxWidgets 3.0.
1573
1574* aven: Several visual improvements to printouts:
1575
1576  + Move the numbers below the scale bar down a little so that they don't
1577    overlap the scale bar ticks.
1578
1579  + Set the clipping region after we draw the page border and info box to avoid
1580    clipping the border in print preview.
1581
1582  + Tidy up the appearance of the compass and elevation arrow.
1583
1584* aven: Fix to build with libav 10.  Reported by Moritz Muehlenhoff in
1585  <http://bugs.debian.org/739332>.
1586
1587* aven: Fix to build with older libav where avcodec_free_frame() isn't
1588  available.
1589
1590* (Linux version) survex.spec: Update spec file used for building RPM packages.
1591
1592* (Unix version): Add "Keywords:" entry to .desktop files.
1593
1594* (Unix version): Enable large file support, mostly to support filing systems
1595  which return 64 bit inode values, such as CIFS mounts.
1596
1597* (Microsoft Windows version): Only allow "A-Z" or "a-z" for driver letters,
1598  rather than any character which is a letter in the current locale.
1599
1600* Various translation updates.
1601
1602Changes in 1.2.11 (2014-01-28):
1603
1604* aven: Fix wxWidgets assertion when double clicking on an anonymous station.
1605  Reported by Kevin Dixon.
1606
1607* aven: Embed the font data for the first 256 Unicode characters for use in the
1608  survey pane into the compiled aven binary to reduce start up overhead.  Any
1609  additional characters needed are loaded from a data file only if/when a
1610  character >= U+100 is actually needed (as before).
1611
1612* aven: Fix display of Unicode characters above 256 when there's a character
1613  <= 256 earlier in the same string.
1614
1615* aven: Use the actual width of Unicode characters above 256 rather than
1616  assuming they are 16 pixels wide.
1617
1618* aven: If full screen, don't show the side panel when a new file is opened
1619  (e.g. via Ctrl+O).
1620
1621* aven: Don't give an assertion failure when showing passages for a cave with
1622  no vertical extent.  Reported by Jonny Prouty.
1623
1624* aven: Change terminology in print dialog - say "legend" instead of "info
1625  box".
1626
1627* aven: Add option to show the tilt angle as a percentage gradient.
1628
1629* aven: Show the units (degrees, grads, or percent) for the tilt and bearing
1630  indicators.
1631
1632* aven: All length units are now translatable.
1633
1634* aven: Split log_fl_error helper function out of CHECK_GL_ERROR macro, which
1635  will reduce code size and also the number of deprecation warnings about
1636  gluErrorString on Mac OS X 10.9.
1637
1638* (Microsoft Windows version): aven: Try to work around redraw issues related
1639  to the measuring line by redrawing the whole window, which doesn't seem to be
1640  measurably slower.
1641
1642* cavern: If *units is used to try to set units for LEVEL, PLUMB, or POSITION,
1643  give an error rather than quietly ignoring the attempt.
1644
1645* cad3d: Make cad3d remap control characters and spaces in station names when
1646  generating PLT output in the same way aven does.
1647
1648* Various translation updates (particular thanks to Eric Madelaine and Dennis
1649  Baudys), including the start of a Bulgarian translation, with messages taken
1650  from Therion and elsewhere.
1651
1652* (Microsoft Windows version): On Microsoft Windows 2000 and newer, use
1653  GetUserDefaultUILanguage() to get the UI language to use.  For older
1654  versions, continue to use GetUserDefaultLCID().
1655
1656* (Microsoft Windows version): The Indonesian translation will now be used
1657  automatically when the system language is set to Indonesian.
1658
1659* (Mac OS X version): Fix to build with wx 3.0.0 on OS X 10.9.  Thanks to David
1660  A. Riggs for his work on this.
1661
1662* (Mac OS X version): Update buildmacosx.sh script to use wx 3.0.0, and add a
1663  checksum check for the downloaded wx sources.
1664
1665* Fix a lot of the compiler warnings when building with clang.
1666
1667* doc/manual.sgml: Add missing quantities to the list documented as accepted by
1668  *units: LEFT, RIGHT, UP/CEILING, DOWN/FLOOR (missing entirely);
1669  BACKCOMPASS/BACKBEARING, BACKCLINO/BACKGRADIENT (missing from the main list,
1670  mentioned in list of the units that can be set for them); COUNT (missing
1671  alternative name for COUNTER); DX/EASTING, DY/NORTHING, DZ/ALTITUDE
1672  (incorrectly listed as X, Y, Z).  Reported by Jonny Prouty.
1673
1674* Test suite: Improve test coverage for cavern.
1675
1676Changes in 1.2.10 (2014-01-15):
1677
1678* aven: Fix assertion if two mouse buttons are held down at the same time.
1679  If dragging with more than one mouse button held down, releasing one causes
1680  another which is still held down to take effect.  Reported by Brian
1681  Clipstone.
1682
1683* aven: If we fail to start the external editor when the user clicks on an
1684  error or warning from cavern, show an error box.
1685
1686* aven: If the survey has a title, add it as a top-level <title> element to
1687  exported SVG files.
1688
1689* aven: Escape '<', '>', and '&' in labels in exported SVG files.
1690
1691* aven: In GPX export, set the <time> element to the datestamp from the 3d
1692  file.
1693
1694* aven: Don't try to write the title if it isn't set or is empty when exporting
1695  GPX files.
1696
1697* aven: Don't bother looking up the printer page setup info when exporting.
1698
1699* (Microsoft Windows version): aven: Fix crash on "File->Print" or
1700  "File->Export" under Windows XP, reported by Brian Clipstone.
1701
1702* (Microsoft Windows version): aven: Fix error dialog about an incorrectly
1703  encoded filename which could occur if run without being asked to load a file
1704  on startup.
1705
1706* (Microsoft Windows version): aven: Compile with optimisation on.
1707
1708* img library, aven: Although processed CMAP data files are often referred to
1709  as "CMAP .XYZ files", it seems that actually, the extension .XYZ isn't used,
1710  rather .SHT (shot variant, produced by CMAP v16 and later), .UNA (unadjusted)
1711  and .ADJ (adjusted) extensions are.  Since we've long checked for .XYZ, we
1712  continue to do so in case anyone is relying on it, but also check for the
1713  other extensions.
1714
1715* img library: Add new "datestamp_numeric" field to struct img giving the
1716  datestamp as a time_t in UTC (or (time_t)-1 if there's no datestamp or we
1717  failed to convert it).  For .3d >= v8, this field is reliable.  We attempt to
1718  convert date strings in .3d <= v7 and CMAP XYZ files, but may get the
1719  timezone wrong.
1720
1721* img library: Fix my_strcasecmp() to handle top-bit set characters better.
1722
1723* cavern: Fix NULL pointer dereference when processing Compass DAT file without
1724  'SURVEY DATE:'.
1725
1726* doc/manual.sgml: Update references to Survex 1.1 which should be to 1.2.
1727
1728* doc/manual.sgml: Note the station length limit Smaps used.
1729
1730* Fix some compiler warnings if built with glibc's fortify source feature
1731  enabled.
1732
1733Changes in 1.2.9 (2014-01-08):
1734
1735* Document --3d-version in cavern man page and the manual.
1736
1737* aven: Fix compilation error in movie export code with recent libavi.
1738
1739* aven: Fix warning on stderr when export a movie as MPEG.
1740
1741* img library: In non-hosted mode, don't define GETC and PUTC if they're
1742  already defined, to allow easy overriding with getc_unlocked() and
1743  putc_unlocked() (which are significantly faster on Linux).
1744
1745* img library: In non-hosted mode, check that int is at least 32 bits,
1746  and if not, use long.  In practice, platforms with 16 bit int are mostly
1747  obsolete, but it's not hard to be portable here.
1748
1749* img library: Add test that img.c and img.h compile in non-hosted mode
1750  (regression test for issue fixed in 1.2.8).
1751
1752* (Microsoft Windows version): aven is now built with wxWidgets 3.0.0.
1753
1754* Update translations from launchpad and from existing similar messages.
1755
1756* Fix some compiler warnings.
1757
1758Changes in 1.2.8 (2013-10-29):
1759
1760* cavern: Fix handling of anonymous wall stations ('..' by default) to
1761  implicitly set the SPLAY leg flag, as was intended.  Reported by Thomas
1762  Holder.
1763
1764* cavern: Tweak .err file output not to lose the space in front of certain
1765  statistics when the value gets large.
1766
1767* cavern: Eliminate redundant progress message when solving simultaneous
1768  equations.
1769
1770* aven: Add a format drop down to the export dialog, and only show fields which
1771  are meaningful and supported for the currently selected export format.  The
1772  format defaults to that used most recently.  The "Elements" and "View" boxes
1773  have been swapped in the print and export dialogs as that layout works much
1774  better when the "View" box is hidden.
1775
1776* aven: Changing checkboxes in the print or export dialog didn't work in 1.2.7
1777  - now works again.  Reported by Anthony Day.
1778
1779* aven: Add GPX export (based on findentrances patch from Olaf Kähler).  In
1780  this release the projection which the survey coordinates are in defaults
1781  to the BMN M31 grid used in the Totes Gebirge in Austria.  On Unix, you
1782  can edit ~/.aven and add a new line setting 'input_projection' to a PROJ
1783  projection string.  The ability to specify this projection in a better
1784  way is coming soon.
1785
1786* aven: New export options "Origin in centre" and "Full coordinates" - the
1787  latter fixes #10.  GPX and PLT output implicitly force "full coordinates".
1788
1789* aven: The "Sketch" vector drawing program got renamed to "Skencil" some
1790  time ago, so update references.
1791
1792* aven: Make the Presentation->Play menu item a checkbox, to avoid a warning
1793  with wxMSW 2.9.5.  Reported by Brian Clipstone.
1794
1795* aven: Make right click in an empty presentation mark the current position and
1796  open it to edit, instead of crashing.
1797
1798* aven: Update movie export code to work with latest libav API.  Reported by
1799  Sebastian Ramacher.
1800
1801* aven: Improve reporting of errors during the process of exporting a movie.
1802
1803* aven: Don't try to close the movie if we aren't producing one.
1804
1805* aven: Fix assertion failure when double-clicking on the survey with wx2.9.
1806
1807* aven: Fix to build with wxMSW 2.9.5.
1808
1809* aven: Fix to build with wx 2.9.5 with wx2.8 compatibility disabled.
1810
1811* cad3d: The "Sketch" vector drawing program got renamed to "Skencil" some time
1812  ago, so add a new --skencil option to specify this output format.  The old
1813  name (--sketch) is still recognised for compatibility.
1814
1815* cad3d: Make --marker-size work for Skencil and SVG output.
1816
1817* dump3d: Make --show-dates option show dates for XSECT.
1818
1819* img library:
1820
1821  + Fix to work once more when used outside of Survex (missing definition of
1822    max() macro and a bad call to free() in img_close() for a file opened for
1823    reading).
1824
1825  + Use lround() instead of round(), and make the tests around whether we use
1826    the library function or the our fallback implementation saner.
1827
1828  + Fix // comments in C code for portability to pre-C99 compilers which don't
1829    support these as an extension.
1830
1831  + Can now be compiled as C++ as well as as C.
1832
1833* (Microsoft Windows version): The installer is now built with a newer version
1834  of Innosetup, and includes translations for all the languages which Survex
1835  itself has any translations for.
1836
1837* (Microsoft Windows version): aven is now built with wxWidgets 2.9.5.
1838
1839* Minor translation updates.
1840
1841* tests/Makefile.am: Distribute files for "normal_bad" testcase.
1842
1843Changes in 1.2.7 (2013-07-27):
1844
1845* Add support for anonymous stations, which are indicated by one, two or three
1846  separator characters - with the default separator of '.', that means '.',
1847  '..', and '...' are anonymous stations.  Single separator ('.' by default)
1848  is an anonymous non-wall point, double separator ('..' by default)
1849  is an anoymous wall point at the end of an implicit splay), and triple
1850  separator ('...' by default) is an anoymous point (with nothing special about
1851  the leg).  A new *alias command allows '-' to be mapped to '..' for
1852  compatibility with pocket topo: *alias station - ..
1853
1854* New version 8 of the 3d format:
1855
1856  + Supports new flags img_SFLAG_ANON and img_SFLAG_WALL.
1857
1858  + New explicit file-wide flag for 'this is an extended elevation', rather
1859    than modifying the survey title to indicate this.
1860
1861  + The survey prefix is often unchanged from one leg to the next, so use a
1862    spare flag to compactly indicate when there's no label change.
1863
1864  + The data style of each leg is now stored.
1865
1866  + The "processed at" time is stored as seconds since 1970 rather than a
1867    human-readable string.
1868
1869  + Since 3d v8 features significant changes to the format, the format
1870    documentation for v7 and earlier has been split off into 3dformat-old.htm.
1871
1872* img library:
1873
1874  + New station flags img_SFLAG_ANON and img_SFLAG_WALL.
1875
1876  + Handle .pos files containing unnamed stations - don't suck the next line in
1877    as the station name, and set img_SFLAG_ANON for them.
1878
1879  + Repurpose the long unused fBinary parameter to img_open_write() as a flags
1880    parameter, and add img_FFLAG_EXTENDED to specify that this is an extended
1881    elevation, in place of appending " (extended)" to the title.  Internally we
1882    still append this to the title (and remove it upon reading) when writing
1883    3d v7 or earlier, but for the new 3d v8 format, this flag is stored
1884    explicitly in the file.
1885
1886  + img.h: Add comments for the lists of "Leg flags" and "Station flags".
1887
1888* aven:
1889
1890  + We now require at least wxWidgets 2.8.0 - it was released over 6 years ago
1891    now, and the wx developers consider even 2.8 to be rather long in the
1892    tooth.  We stopped testing building with wxWidgets 2.6 some time ago, and
1893    formally dropping support for older versions allows a number of workarounds
1894    to be removed from the aven source code.  Also, features deprecated in
1895    wxWidgets 2.9 are no longer used in our code.
1896
1897  + Don't run incremental search on every key-press, as on a slow machine the
1898    short initial search(es) will take a while but not be useful.  Instead only
1899    actually run the search when we're told there are no more key-presses
1900    queued up.
1901
1902  + Implement support for including cross-section information in exported SVG
1903    and DXF files (ticket#4).  The DXF export is untested currently.
1904
1905  + Show splay legs faded by default, with menu options to hide them or show
1906    them like other legs.
1907
1908  + Speed up loading a .3d file with cross-sections by using a map to convert
1909    station names to positions.
1910
1911  + In the cavern log window, don't highlight a file:linenumber if there's no
1912    message after it, which avoids highlighting the "Included from" lines
1913    wrongly.
1914
1915  + Fix not to crash when trying to report an error while starting up.
1916
1917  + (MacOS X version): Change the menu shortcut for "Full Screen Mode" to be
1918    the OS X standard shortcut Shift-Command-F (previously we used F11, but
1919    that's used by the desktop).
1920
1921  + Add checks for errors when reading the font file.
1922
1923  + Remove useless extra quoting when invoking vim to show the location of an
1924    error from cavern.
1925
1926  + Include GL/gl.h before GL/glext.h (needed on Debian wheezy).
1927
1928  + Use wxValidator to simplify keeping svxPrintDlg member variables and fields
1929    in the dialog in sync.
1930
1931* cavern:
1932
1933  + Demote errors about invalid dates to warnings, since we've accepted *date
1934    for ages without any checks on the value, and so existing datasets
1935    probably contain invalid dates and dates in other formats.  (ticket#19)
1936
1937  + New *alias command allows '-' to be mapped to '..' for compatibility with
1938    pocket topo: *alias station - ..
1939
1940  + We want to warn if there's a clino reading which it would be impossible to
1941    have read from the instrument (e.g. on a -90 to 90 degree scale you can't
1942    read "93" (it's probably a typo e.g. for "39").  However, the gradient
1943    reading from a topofil is typically in the range 0 to 180, with 90 being
1944    horizontal.  Really we should allow the valid range to be explicitly
1945    specified, but for now we infer it from the zero error - if this is within
1946    45 degrees of 90 then we assume the instrument can read between 0 and 180
1947    degrees.
1948
1949  + If the survey isn't all connected, still run survey tree checks and report
1950    errors and/or warnings which might suggest typo locations.  Thanks to Kevin
1951    Dixon for the report which highlighted this issue.
1952
1953  + Report a warning if *begin SURVEY has a separator character in SURVEY.
1954
1955  + Report column numbers as well as line numbers for some cavern errors and
1956    warnings.
1957
1958  + Adjust width of node stats table to fit longest count when there are more
1959    than 9999 of a particular order of node.
1960
1961  + If the argument to *include has an opening double quote but the closing
1962    double quote is missing, then skip trying to open the file.
1963
1964  + Move "Station X referred to just once" warning after non-existent survey
1965    check - if both fire, the non-existent survey error is likely to be more
1966    relevant.
1967
1968  + We no longer follow an error for a bad reading in passage data with a bogus
1969    "End of line not blank" error, but instead check the remaining readings on
1970    the same line.
1971
1972  + We no longer follow an error about OMIT for a required reading with a bogus
1973    "End of line not blank" error.
1974
1975  + Report an error if the scale factor in *calibrate is zero - it doesn't make
1976    sense and probably means someone reversed the arguments to *calibrate.
1977
1978  + Report the parent include files starting from the outermost, as that's more
1979    logical when there are multiple levels involved.
1980
1981  + If we were expecting a numeric field and instead get something which starts
1982    with '+', '-', or '.' but which isn't a number, then fix the error to
1983    include that character in the token reported.
1984
1985  + Simplify handling of quantity lists to only recognise 'DEFAULT' as the
1986    first item.
1987
1988* cad3d: Check for errors from img_rewind() and report them.
1989
1990* dump3d:
1991
1992  + Build, install and package dump3d as standard - it's useful for grabbing
1993    info from 3d files in scripts.
1994
1995  + Add --show-dates option.
1996
1997  + Show only 2 decimal places on coordinates and passage dimensions.
1998
1999  + Report the data style of legs.
2000
2001  + Report if the file is an extended elevation.
2002
2003  + Report img_STOP as STOP rather than CODE_0xffffffff.
2004
2005* Test suite:
2006
2007  + cavern.tst: Fix equatenosuchstn testcase (added in 1.2.6) to normalise the
2008    expected output so it passes reliably.
2009
2010  + cavern.tst: Run diffpos <expected> <actual> so the reports of 'Added' and
2011    'Deleted' stations upon failure are the more natural way round.
2012
2013  + Add more testcases, expand some existing testcases, and add expected output
2014    for more.
2015
2016* (Microsoft Windows version): Use wx-config's --cc and --cxx flags to find the
2017  appropriate C and C++ compilers to use, and link mingw build statically to
2018  avoid needing the libgcc DLL (which newer GCC seems to have by default).
2019
2020* (Unix version): When determining the character set for command-line tools,
2021  check environmental variable LANG after LC_ALL and LC_CTYPE.
2022
2023* When determining the language, check environmental variable LC_ALL before
2024  LC_MESSAGES and LANG (but after SURVEXLANG).
2025
2026* If we don't find the message file, only give an error if it was specified
2027  with SURVEXLANG, since that is an explicit instruction to Survex, whereas
2028  LANG, LC_ALL and LC_MESSAGES are essentially system "preferred locale"
2029  settings.
2030
2031* There are a handful of hard-coded English message strings for reporting
2032  errors trying loading message files, etc.  These are all now ASCII, as if we
2033  fail trying to open a message file, it's more likely the encoding isn't
2034  set correctly.
2035
2036* Prune strings we are no longer using and are probably unlikely to use again
2037  into a new file po_codes_dead, so that translators don't get presented with
2038  them to translate.
2039
2040* Merge lots of translation updates.  Most translations are now complete or
2041  close to complete.
2042
2043* Add start of Indonesian translation from Arief Setiadi Wibowo.
2044
2045* Fix various compiler warnings when building from source.
2046
2047* Include scripts gdtconvert and gen_img2aven in the source distribution.
2048
2049Changes in 1.2.6 (2012-02-23):
2050
2051* (Mac OS X version): Fix so that cavern finds its messages when run by aven.
2052
2053* (Microsoft Windows version): Include JPEG images for aven in the installer
2054  package (ticket#35).
2055
2056* cavern: If we have a reference to a station in a non-existent survey, give a
2057  helpful error rather than saying the station hasn't been exported from the
2058  survey.  (Bug reported by Martin Green via email)
2059
2060* aven: Fix to build with a non-Unicode wxWidgets library.  Patch from Olaf
2061  Kahler.
2062
2063* findentrances: Add findentrances utility from Olaf Kahler which produces a
2064  .gpx file with waypoints for entrances.  This needs libproj so is disabled
2065  by default for this release - to enable it install the development stuff for
2066  libproj and build survex with:
2067
2068      make FINDENTRANCES=findentrances
2069      make install FINDENTRANCES=findentrances
2070
2071* dump3d: Add support for showing img_ERROR_INFO items.
2072
2073* doc/3dformat.htm: Merge in some improvements from Mike McCombe.
2074
2075* Incorporate a French translation from launchpad I'd previously copied the
2076  English version of by mistake.  Attempt to correct mistranslation of "survey
2077  file".
2078
2079Changes in 1.2.5 (2012-01-03):
2080
2081* aven:
2082
2083  + The survey tree in the left panel is now in sorted order once more.
2084
2085  + No longer fails with an assertion if used for a long time (we were leaking
2086    an OpenGL list each time one had to be regenerated).
2087
2088  + Now builds with newer FFmpeg library.
2089
2090  + Draw measuring line in front of the indicators rather than behind them.
2091
2092  + Loading a new file (or reloading the current one) no longer invalidates
2093    the OpenGL lists for the compass and clino, so will be a fraction faster.
2094
2095* Improve handling of attempts to look up translated messages before the
2096  message subsystem is fully initialised (which only happens if there's an
2097  error early on).
2098
2099* Improve the survex(7) man page text, and fix it to be marked as section 7 in
2100  the man page source as well as in the filename.
2101
2102Changes in 1.2.4 (2012-01-01):
2103
2104* aven:
2105
2106  + A change in 1.2.3 meant that aven tried to use OpenGL before it was
2107    initialised, which doesn't cause problems in some machines, but causes aven
2108    to abort on others.  This is now fixed, and there's a check in place to
2109    help avoid similar issues in future. (ticket#34)
2110
2111  + Always use metres or feet for the depth colour key, and chose a consistent
2112    precision by looking at the depth range. (ticket#30)
2113
2114  + Show the depth units below the colour bar rather than after every value.
2115
2116  + When zooming way in, stay in metres rather than switching to cm.
2117
2118  + On the scale bar, say “1 mile” rather than “1 miles”.
2119
2120* Translation updates for Catalan, French and Slovak.
2121
2122Changes in 1.2.3 (2011-12-31):
2123
2124* Fix to build with wxWidgets 2.9.2.
2125
2126* (Mac OS X version):
2127
2128  + Processing .svx files from aven now works.
2129
2130  + Remove spurious blank lines from the licence text in "Get Info".
2131
2132  + Don't create the help menu at all, as it is empty (because the "About"
2133    entry goes elsewhere) and sometimes seems to appear in the UI.
2134
2135  + INSTALL.OSX: Update to reflect current status.
2136
2137* aven:
2138
2139  + Fix Y coordinates of surface surveys on printouts.  (Closes #32)
2140
2141  + Improvements to text plotted on the survey pane:
2142
2143    - Support plotting Unicode character points > 256 by lazily loading the
2144      data for them from the font file and plotting them with a direct call to
2145      glBitmap(), which is slower but doesn't require a display list per
2146      character.
2147
2148    - Adjust the spacing from fixed width to putting a one pixel gap either
2149      side of each one character (so two between adjacent glyphs).  Mostly this
2150      reduces the horizontal width, but it adds a pixel for characters like "m"
2151      and two in a few cases.
2152
2153    - Fix .pixelfont file generation to correctly handle characters wider than
2154      8 pixels.
2155
2156  + Fix expected cross shape so don't always reject using texture mapping to
2157    draw crosses.
2158
2159  + As we read a survey file, eliminate tubes consisting of zero XSECTs as well
2160    as those consisting of just one.  Previously we would trip over the empty
2161    tube later.  Such tubes can for example be created by extend if a splay shot
2162    is the start or end of a tube.
2163
2164  + Make the green colour used for entrances in the survey tree the same
2165    (slightly darker than before) green used for the entrance blobs.
2166
2167  + Report the version of the library we're actually running with if built
2168    against wx >= 2.9.2.  Make it clear that the version reported is the
2169    version *built* with for wx < 2.9.2.
2170
2171* extend:
2172
2173  + Copy the end markers for passage tubes.
2174
2175  + Preserve left and right data for tubes (previously they were set to -1.0
2176    which means "no info").
2177
2178* img library: Fix incorrect comment in img.h which claimed that img_XFLAG_END
2179  was no longer used - it certainly is!
2180
2181* Use curly double quotes instead of "`" and "'" to quote filenames, etc in
2182  messages, and curly single right quote instead of straight ASCII apostrophe.
2183  Fall back to using straight ASCII versions if we can't represent them in the
2184  current character set.
2185
2186* Translation updates for Catalan, French, Slovak and Spanish.
2187
2188* Test suite:
2189
2190  + Add test coverage for interleaved diving data.
2191
2192  + Add testcase for diving data with topofil-style distance.
2193
2194Changes in 1.2.2 (2011-10-06):
2195
2196* aven:
2197
2198  + Replace the textured-mapped font drawing with an approach based on
2199    glBitmap.  This doesn't suffer from the character alignment issues which
2200    the textured-mapped fonts had, and is actually significantly faster on some
2201    machines.  The current font used is (mostly) fixed-width, but this isn't an
2202    inherent limitation - it was just the easiest font data to convert to a
2203    usable format.
2204
2205  + Fix assertion failure due to rounding differences on loading certain .3d
2206    files.  (ticket#26)
2207
2208  + Fix assertion failure when turning on 3D passages if they stick out higher
2209    or lower than any station.  (ticket#29)
2210
2211  + Fix grid not to disappear when blobs are turned on and blobs are drawn
2212    using lines.
2213
2214  + If a degree sign isn't available in the character set in use, transliterate
2215    it to 'dg' rather than skipping it.
2216
2217  + Fix message which should have been a degree sign but got lost in the format
2218    change for 1.2.0 and then got reassigned in 1.2.1.  Externally, this means
2219    that bearings in the status bar now have a degree sign after them if they
2220    are in degrees rather than nothing (1.2.0) or "&Hide Compass" (1.2.1).
2221
2222  + Fix print dialog to calculate the scale required for "One page" right
2223    before it calculates how many pages are required, so we don't end up
2224    something other than 1x1 being shown when the user changes settings.
2225
2226  + Update the calculations for picking a scale and for deciding how many
2227    pages are needed to take into account the change in info box height made
2228    in 1.2.1.
2229
2230Changes in 1.2.1 (2011-10-04):
2231
2232* Translation updates for US English.
2233
2234* aven:
2235
2236  + Rename the "depth bar" to "colour key" in documentation, menus, etc since
2237    it now shows colours for dates and errors as well as depths.
2238
2239  + In the colour key for "colour by date", change "No info" to "Undated".
2240
2241  + Remove the dark grey background from the colour key and just put a single
2242    pixel black border around the colours.  This is more in keeping with the
2243    other controls, and means the colours are now on a black background so more
2244    visually similar to the survey legs.
2245
2246  + Move the colour key's "Undated"/"Not in loop" entry down a little to
2247    improve the appearance.  Make each section a pixel taller.
2248
2249  + Allow "Colour by X" to be selected even if there's no data for X or only a
2250    single value of X used (the colour key is much smaller in these cases, and
2251    does still provide some useful information).
2252
2253  + Fix incorrect calculation of depth colouring for survey legs which straddle
2254    a depth band boundary.
2255
2256  + The scale bar, compass, clino, and colour key now all have right click
2257    menus which allow related actions to be performed (especially handy in
2258    full-screen mode).
2259
2260  + Improve the font used on the survey pane - it now contains the '-'
2261    character (so the clino now shows negative angles as negative, and dates
2262    in the colour key are now hyphenated).  Also the spacing and alignment
2263    are a little better, though still not perfect.
2264
2265  + PLT file export now handles spaces and control characters in station names
2266    by escaping them with '%' as in URLs.
2267
2268  + Pressing "Enter" on a station in the tree control now centres the view on
2269    that station.
2270
2271  + The scale bar is now cached in an OpenGL display list since it often gets
2272    redrawn exactly the same - for example, when rotating, panning, etc.
2273
2274  + Pressing "F5" forces all cached OpenGL drawing lists to be invalidated and
2275    then forces a refresh of the survey pane.  This is intended as a debugging
2276    aid - if pressing F5 changes the display at all then there's a missing case
2277    where a list should have been invalidated (please report if you find such
2278    a case as it is a bug).
2279
2280  + We now automatically track which OpenGL display lists need to be
2281    invalidated on window width or height changes.
2282
2283  + Increase scale bar maximum width from 65% of the window width to 75% as it
2284    was in 1.0.x (except that if that would overlap the clino we now reduce
2285    that proportion down until it reaches 50%).  Make the limit of zooming in
2286    the same as in 1.0.x.  (ticket#23)
2287
2288  + (Linux version): Previously wxGTK didn't really handle showing a dialog if
2289    the application was fullscreen (the dialog got opened under the main
2290    window!)  To work around this, aven would switch out of full screen mode
2291    temporarily while showing a dialog.  This case works properly with recent
2292    wxGTK, so disable our workaround with versions we know work.  Also, apply
2293    the workaround only for wxGTK, not everywhere except on Microsoft Windows
2294    as there's no reason to think we need it for other platforms.
2295
2296  + Grey out the "View North" action when we're already viewing North, and
2297    similarly for other compass points.
2298
2299  + (Mac OS X and Microsoft Windows versions): Fix missing newline to OpenGL
2300    info in the "About" dialog.
2301
2302  + Fix to set the correct filename on the root of the survey tree - previously
2303    the filename of the previous file loaded was used!
2304
2305  + The movie export code now works with newer versions of the FFmpeg libraries
2306    as well as still working with older versions.
2307
2308  + Fix mixed up messages - the print dialog now says "View" on the left
2309    subgroup of controls rather than some unrelated message.
2310
2311  + On printouts, combine the "Plan View"/"Elevation" info box field with the
2312    field which gives the bearing and reduce the height on the info box by the
2313    removed field, so it's now 3cm for plans and elevations, as for extended
2314    elevations.  Report the tilt angle for tilted elevations which it seems has
2315    been missing for ages (it's not in recent 1.0.x either).
2316
2317  + Tweak the exact positioning of informational text on printouts to look
2318    nicer and make better use of the available space.
2319
2320  + Add keyboard mnemonics to the "Plan" and "Elevation" buttons in the print
2321    dialog.
2322
2323  + Make the sign of the tilt angle for printouts consistent with the sign
2324    shown by the "clino" in the survey pane.
2325
2326  + In the "Print" dialog, when in plan view disable the "Plan view" button,
2327    and similarly for the "Elevation" button.
2328
2329  + (Microsoft Windows version): Sort out appearance of custom cursors.
2330
2331  + If a label isn't valid UTF-8 or CP1252, fall back to ISO8859-1.
2332
2333  + (Mac OS X version): F11 puts aven into full screen mode, but apparently
2334    you can't get out again easily, so add code to explicitly check for F11
2335    being pressed and toggle full screen.
2336
2337* (Linux version): Fix the RPM .spec file for where man pages now get installed
2338  and package aven.svg and the vim support files.  (Fixes from James Begley)
2339
2340* "make check" now performs several checks on the translation files.
2341
2342* More messages are now available to be translated.
2343
2344* cavern: Fix reporting of ranges of survey coordinates, which was broken by
2345  the message handling changes in 1.2.0.
2346
2347* Fix warning when compiling with GCC.
2348
2349* INSTALL: Mention building wxWidgets with --enable-unicode.  Mention using
2350  sudo for installing on Unix.
2351
2352* In the manual, replace the instructions for building from source with a
2353  pointer to the clearer instructions in INSTALL.
2354
2355* In the manual, make it clear that installing with administrator rights
2356  also applies to newer platforms than XP.
2357
2358* doc/TODO.htm: Update.
2359
2360Changes in 1.2.0 (2011-09-20):
2361
2362* Translation updates for Catalan, French, Romanian, Spanish, Slovak, and US
2363  English.
2364
2365* tests/smoke.tst: aven no longer requires an X display for --help or
2366  --version, so replace skip of this check with a check that this remains the
2367  case.
2368
2369* We now use the standard .po and .pot file formats for storing translations
2370  (rather than the Survex-specific messages.txt format), and then translate
2371  these into Survex's .msg format.
2372
2373* (Unix version): Move survex man page to section 7 (since it isn't documenting
2374  an actual command).
2375
2376* (Unix version): Write each generated man page to a temporary file, then
2377  atomically rename, to avoid leaving an empty or partial man page behind if
2378  docbook-to-man dies (1.1.16 had an empty cad3d.1, and we want to avoid a
2379  recurrence of that).
2380
2381* (Unix version): Default to installing docs into /usr/share/doc/survex rather
2382  than /usr/doc/survex.
2383
2384* aven:
2385
2386  + Fix handling of accented characters in the survey pane.
2387
2388  + Aven icon redrawn in SVG format - it's now a vector image which looks
2389    nicer at larger sizes.
2390
2391  + Explicitly request double-buffering, which seems to be needed for systems
2392    with GLX >= 1.3.
2393
2394  + Fix crash while trying to load certain .3d files.
2395
2396  + Movie export code updated to work with more recent versions of FFmpeg.
2397    Currently this is disabled in Microsoft Windows builds, pending getting the
2398    required libraries set up for building releases.
2399
2400  + Reporting of errors during movie export improved.
2401
2402  + Force playback speed to "x1" during movie export.
2403
2404  + Use stock IDs for buttons where appropriate - such buttons may now be
2405    rendered with icons on some platforms.
2406
2407  + If a label isn't valid UTF-8, treat it as CP1252 (the Microsoft superset of
2408    ISO8859-1).
2409
2410  + (Unix version): Remove special handling for toggling "full screen" on wxGTK
2411    as it's no longer required with modern versions.
2412
2413  + Don't redraw the survey on every mouse movement in the survey pane unless
2414    the measuring line is (or just was) active.  (ticket #17)
2415
2416* cavern:
2417
2418  + Drop "non-fatal" from the report of how many errors there were at the end
2419    of the run - it just confuses users - we won't even get here if there's a
2420    fatal error!
2421
2422  + Add --3d-version option to allow the user to specify the version of the 3d
2423    format to output.  (ticket#21)
2424
2425* img library:
2426
2427  + Make the highest and lowest valid values for img_output_version available
2428    in img.h as IMG_VERSION_MIN and IMG_VERSION_MAX.
2429
2430* (Mac OS X version): Fix buildmacosx.sh script to check where the temporary
2431  volume actually gets mounted.  Fix URL for downloading wxWidgets.
2432
2433Changes in 1.1.16 (2011-05-16):
2434
2435* Translation updates for German, Spanish, Italian, Portuguese, Brazilian
2436  Portuguese, and US English.
2437
2438* Use horizontal ellipses character rather than '...' and right arrow character
2439  rather than '->' where these characters are available.
2440
2441* (Unix version): Link with -lGL, if it exists, to support linking with gold or
2442  GNU ld --as-needed (Debian bug #615781).
2443
2444* img.c:
2445
2446  + Fix code typo for IMG_API_VERSION == 0 case.
2447
2448  + Fix code typo in code used when IMG_HOSTED isn't defined.
2449
2450* doc/TODO.htm: Remove entries which have now been done.
2451
2452* (Microsoft Windows version): aven: We now include all the available
2453  translations for messages from wxWidgets, which means that standard widgets
2454  will appear translated where available even if Survex messages aren't
2455  translated.
2456
2457Changes in 1.1.15 (2010-10-15):
2458
2459* aven:
2460
2461  + In the cavern log window, change the "Rerun" button to "Reprocess" to
2462    follow terminology in manual and elsewhere.  Fixes ticket#15.
2463
2464  + When displaying output from cavern, don't update the window after every
2465    line, but only when we don't have data from cavern pending.  Hopefully
2466    addresses ticket#12.
2467
2468  + If we aren't using GL_POINTS for blobs, draw them using a series of
2469    abutting lines rather than with gluDisk which is faster and gives a
2470    consistent shape.
2471
2472  + Check whether blobs and crosses actually render correctly as points/point
2473    sprites, and if they don't, fall back to drawing them with lines.  The
2474    best method is cached on disk, and rechecked automatically if the graphics
2475    hardware is changed or the drivers upgraded.
2476
2477  + Fix non-USE_FNT case to work again (it's limited to ISO-8859-1 characters
2478    though, so we still enable USE_FNT by default).
2479
2480  + Don't offer "All files" wildcard in presentation save dialog.
2481
2482  + (Microsoft Windows): Handle filenames with non-Latin1 characters in in
2483    more places.
2484
2485  + (Microsoft Windows): Quote filenames with spaces and metacharacters in
2486    when running cavern from aven.  Fixes ticket#11.
2487
2488* editwrap: (Microsoft Windows): Handle filenames with non-Latin1 characters.
2489
2490* diffpos: Handle files with duplicate labels in better - extend generates
2491  duplicate labels when it breaks a loop.
2492
2493* Enable eswap-break testcase now that diffpos handles duplicate station names.
2494
2495* New v7 of .3d format which stores survey dates as number of days since
2496  January 1st 1900, so we now support dates from 1900-2078 (rather than
2497  1970-2037) with a smaller file size.  The img API is now versioned - you
2498  can select the new "version 1" by compiling with -DIMG_API_VERSION=1, which
2499  gives the survey dates in days in days1 and days2 instead of as time_t
2500  values in date1 and date2.  Fixes ticket#14.
2501
2502* Consistently use http://survex.com/ rather than http://www.survex.com/ - the
2503  former has been the canonical name for some time, with www.survex.com just
2504  redirecting to it.
2505
2506* (Unix version): Use unlocked file I/O if available, which can be much faster
2507  in some cases (we don't need the locking as we don't do multithreaded file
2508  I/O).
2509
2510* (Mac version): Fix compilation failure due to clash with Point in Mac OS X
2511  headers.
2512
2513* (Mac version): buildmacosx.sh now works again.
2514
2515* Most tests weren't actually running any testcases (looks like a sh
2516  portability issue).  This is now fixed, and fortunately all tests still pass.
2517
2518* Include the extra .isl translation files for Innosetup in the source archive.
2519
2520Changes in 1.1.14 (2010-07-26):
2521
2522* Restore compatibility with wxWidgets 2.6 (1.1.13 required wxWidgets 2.8).
2523
2524* aven:
2525
2526  + After processing survey data, if there were warnings or errors, add a
2527    "Rerun" button to allow easy reprocessing after fixing problems.  If there
2528    were only warnings, also add an "OK" button to allow moving on to viewing
2529    the processed survey data (fixes ticket#13).
2530
2531  + Optimise updating of the cavern log window (hopefully fixes ticket#12).
2532
2533  + Fix links in cavern log window to link from exactly '<file>:<line>' (and
2534    not the ': ' after), and to make the title for the terminal the
2535    warning/error message.  Avoid false positives by checking that '<line>' is
2536    a number.
2537
2538  + Don't double escape the contents of href and target in links in the cavern
2539    log window.
2540
2541  + Improve handling of the splitter window, fixing behavioural glitches in
2542    various cases.
2543
2544  + Highlight stations matching any current search when a file is loaded.
2545    (ticket#9)
2546
2547  + (Mac version): Fix build issue due to Mac OS X polluting the global
2548    namespace with its own "Point" class.
2549
2550  + (Unix version): The Gnome print dialog has its own preview window so
2551    suppress ours if using the Gnome one.
2552
2553  + (Unix version): Link aven with -lGLU which SuSE Linux needs.
2554
2555  + (Microsoft Windows version): Fix handling of a double-click on the survey
2556    tree when built with wxWidgets >= 2.8.11.
2557
2558* cavern: Report relevant file and line number for three warnings which didn't
2559  give them before.
2560
2561* (Unix and Mac versions): configure: Update the wx-config probing code -
2562  wxmac-config etc aren't present with newer wxWidgets versions so there's no
2563  point looking for them now.
2564
2565* (Mac version): buildmacosx.sh: This script builds a diskimage with Survex in
2566  for easy installation.  Update it to work with the latest Survex versions
2567  (use WX_CONFIG not WXCONFIG; use a Unicode build of wxWidgets; if building a
2568  private wxWidgets, use 2.8.11 not 2.7.0-1).
2569
2570* manual:
2571
2572  + Correctly capitalise "GTK".
2573
2574  + Note that on Linux we only regularly test builds with the GTK+ version
2575    (change taken from 1.0).
2576
2577* Fixed the cad3d man page, which was an empty file in 1.1.13.
2578
2579Changes in 1.1.13 (2010-06-16):
2580
2581* Say "wxWidgets" instead of "wxWindows" consistently.
2582
2583* img.c: Fix small memory leak (filename_opened member).
2584
2585* cad3d, aven: Fix export to SVG when a label contains a '%' character.
2586
2587* aven:
2588
2589  + wxWidgets 2.6.0 or newer is now required.
2590
2591  + A "Unicode" build of wxWidgets is now supported.  An "ANSI" build may still
2592    work but hasn't been tested recently (all packaged versions of wxWidgets
2593    seem to be Unicode now).
2594
2595  + Fix potential uses of uninitialised variables which may have been causing
2596    occasional glitches when loading a file on start-up.
2597
2598  + Improvements to the handling of the font used for plotting labels and other
2599    text on the survey pane:
2600
2601    - Loading the font file is more efficient.
2602
2603    - Character spacing is improved.
2604
2605    - Default font is now anti-aliased.
2606
2607  + "About" dialog:
2608
2609    - Add "Copy" button to copy the system info to the clipboard for easier
2610      bug reporting.
2611
2612    - List OpenGL extensions last, since there are usually lots of them with a
2613      modern gfx card.
2614
2615    - Fix 100% CPU usage while the "About" dialog is open.
2616
2617  + Processing .svx files:
2618
2619    - Passing a .svx file on the command line now works better.
2620
2621    - Put the survey data log window in a splitter in the usual frame rather
2622      than opening a separate frame for it.
2623
2624    - Auto-scroll the log window until we've reported a warning or error.
2625
2626    - Fix small memory leak.
2627
2628  + The presentation filename now defaults to using the basename of the
2629    currently loaded dataset, but we always prompt before we first save with
2630    such a name.
2631
2632  + Reduce memory usage when saving a screenshot.
2633
2634  + Allow "Toggle Fullscreen" to work even if no survey is loaded now that we
2635    persist the window size (and maximised or fullscreen state) between
2636    invocations.
2637
2638  + Fix reporting of OpenGL errors.
2639
2640  + Fix glitches when tilting while looking East.
2641
2642  + Added Portuguese and Slovak translations of wxWidgets messages.
2643
2644* Documentation:
2645
2646  + Rationalise manual formats - replace PostScript with PDF and drop RTF.
2647
2648  + Drop the "alternative manual formats" self-extracting zip file - people
2649    will generally just want one of the formats, so downloading several
2650    together isn't very useful.
2651
2652  + 3dformat.htm: Update for v6 format (thanks to Mike McCombe).
2653
2654  + GPL.htm: Replace HTML version of licence with a link to the version on
2655    the FSF website.
2656
2657  + ChngeLog.htm: Stop generating an HTML version of the ChangeLog - it's too
2658    low level to be of interest to non-developers, and developers can look at
2659    the source code.
2660
2661* (Unix version): configure: New preferred name for specifying wx-config script
2662  is WX_CONFIG.  WXCONFIG still supported for compatibility.
2663
2664* (Linux version): Source RPM package dropped as you can just build an RPM
2665  package from the source tarball.
2666
2667* (Microsoft Windows version): The installer is now created with a newer
2668  version of InnoSetup, which gives a 10% smaller download.
2669
2670Changes in 1.1.12 (2007-02-07):
2671
2672* aven:
2673
2674  + Remember the window size or maximised/fullscreen state between invocations.
2675
2676  + Add options dialog to "Export" similar to the one for "Print".
2677
2678  + The "number of pages required" in the print dialog now updates when you
2679    change what is to be shown (underground legs/surface legs/station
2680    names/crosses).
2681
2682Changes in 1.1.11 (2006-11-25):
2683
2684* Updated Czech, Spanish, and Slovak translations.
2685
2686* (MacOS X version): Assorted OS X specific tweaks and fixes.
2687
2688* aven:
2689
2690  + Pick a smaller and clearer font for labels.
2691
2692  + Fix character spacing.
2693
2694  + Tweak display of bearing and elevation angles to look nicer with
2695    proportional fonts.
2696
2697  + Use the title from the 3d (or plt, etc) file for the window title
2698    rather than the filename.
2699
2700  + Show distances to 2 decimal places rather than the nearest integer.
2701
2702  + Only consider underground legs when calculating the depth bands and
2703    depth colouring.
2704
2705  + Add "Colour by Error".
2706
2707  + Add entry for "white" in date and error keys.
2708
2709  + When setting the view to a single point, don't change the scale.
2710
2711  + If reloading the same file, don't change the view
2712
2713  + Fix filetypes selector in open dialog.
2714
2715  + Fix the charset we use for aven in certain cases.
2716
2717  + Call msg_init before using msg_lang or it won't ever be set!
2718
2719  + Pass wx the full language code to initialise the C library locale.
2720
2721  + Fix bug in generating prefix tree view which could lead to a bogus
2722    leading dot on some survey names (bug probably introduced in 1.1.10).
2723
2724  + "New Presentation" now ensures that the side panel is open
2725
2726  + Fix updating of cached opengl lists when the view is reset to the
2727    default.
2728
2729* Ignore LANG if it starts with a digit to avoid problems with bogus value for
2730  LANG which AutoCAD installation seems to set on MS Windows.
2731
2732* (Unix version): configure: Allow SGMLTOOLS and DOCBOOK_TO_MAN to be
2733  specified.  Either/both can be set to ":".
2734
2735* dump3d: Report unknown (to dump3d) codes returned by img.
2736
2737* img library: Flag all stations as underground in the old "ASCII" .3d format.
2738
2739Changes in 1.1.10 (2006-07-14):
2740
2741* aven: Clicking on a survey name in the survey tree now highlights it in
2742  the map view.  Double-clicking zooms the view to show the clicked survey
2743  highlighted.  Clicking the root clears the highlighting and double-clicking
2744  the root restores the default view.  To expand/collapse a branch, click
2745  on the "[+]" or "[-]" icon to the left of the survey name.
2746
2747* aven: The measuring line can now measure to anywhere in plan or elevation
2748  view (not just to a station!)  In plan view the horizontal distance and
2749  bearing are shown, while in elevation view the vertical distance is shown.
2750
2751* aven: Moving the mouse over a station in the survey view now highlights
2752  that station in the survey tree (though it may not be visible if the
2753  survey(s) it is in aren't expanded).
2754
2755* aven: Clicking on a station to centre the view now moves the mouse pointer
2756  to the new location of the station (except on Mac OS X where this isn't
2757  allowed).
2758
2759* aven: Fix which presentation toolbar buttons are shown as depressed.
2760
2761* Fix infinite loop reading 3d files with LRUD data (bug introduced in 1.1.9).
2762
2763* vim files are now installed with the correct paths (bug introduced in 1.1.9).
2764
2765Changes in 1.1.9 (2006-07-04):
2766
2767* (Unix version): Install desktop files for aven and svxedit contributed to the
2768  Ubuntu package by Phil Bull, and corresponding pixmaps.
2769
2770* Fix img to filter out cross-sections which don't match the subsurvey (if
2771  specified).  The API now returns img_XSECT_END to mark the end of a
2772  passage rather than setting a flag on the last img_XSECT of the passage.
2773
2774* Enhance integration with the vim editor - this can now colour .err files, run
2775  cavern from vim and parse error output, and run aven from vim.  Tweak the
2776  existing vim mode for .svx files to fix a few minor bugs and add support for
2777  the new "*data passage" style.
2778
2779* aven: fix drawing of the "blob" end of the measuring line on graphics cards
2780  which can't draw large enough blobs for us.
2781
2782* aven: sort out confusion about what encoding everything is in which means
2783  that the distance measured by the measuring line actually gets displayed
2784  and also fixes problems with empty menu items in non-English locales in
2785  some cases.
2786
2787* aven: redraw grey background after a menu is closed over the aven window
2788  with no survey loaded.
2789
2790* aven: fix bug which caused printing to crash (introduced in 1.1.8).
2791
2792* aven: avoid crash on some machines when opening "About" dialog before having
2793  loaded a survey.
2794
2795* aven: Translate "Plan" and "Elevation" buttons in print view dialog.
2796
2797* (Unix version): aven: Fix character set handling of cavern output.
2798
2799* cavern: Report an error if a cross-section is specified for a station which
2800  doesn't exist.
2801
2802* Updated French and Italian translations.
2803
2804* (Unix version): aven: Fix "Can't open message file `en_US' using path
2805  `${prefix}/share/survex'" error.
2806
2807* Fix bug in 3d file reading on 64 bit platforms when used in STANDALONE mode
2808  (doesn't affect Survex itself, but other applications which use img.c should
2809  update their copy).
2810
2811* (Unix version): Add checks that wxWidgets is a non-unicode version (wx 2.6
2812  and later are caught by configure, whereas older wx versions are caught when
2813  trying to compile).
2814
2815Changes in 1.1.8 (2006.06.30):
2816
2817* Drop support for building with wxWidgets versions prior to 2.4.0
2818  (which was released on 2003-01-07).
2819
2820* aven: Printing through aven now uses settings from the "[aven]" section
2821  of print.ini, and support for hierarchical sections (using "like=")
2822  has been disabled.
2823
2824* aven: Change mouse actions to be compatible with those in Survex 1.0.
2825  The mousewheel now zooms in/out (it doesn't do anything in 1.0) and
2826  left drag is now smart about not rotating and zooming at the same
2827  time.
2828
2829* aven: Highlighting stations now happens as you type, and pressing
2830  "Enter" or clicking the "Find" button now pans and zooms to show the
2831  highlighted stations.
2832
2833* aven: Left-clicking away from a station now cancels measuring line.
2834
2835* aven: Setting view to North, South, East, or West is now animated like
2836  the tilt from plan to elevation.
2837
2838* aven: Fix presentation saving to also write "." for decimal points and
2839  presentation loading to accept either "." or ",".
2840
2841* (Unix version): aven: Add text for all toolbar items so that aven
2842  will work with the Gnome desktop preference for displaying toolbars as
2843  icons with text or just text (wxWidgets needs fixing first though).
2844
2845* (Unix version): aven: Remove the ability to detach the menu bar (yell
2846  if you actually used it and I'll restore it!)
2847
2848* aven: Add "all survey files" option to the "open file" dialog.
2849
2850* (MS Windows version): aven: Fix cursor keys to pan survey.
2851
2852* (MS Windows version): Built with wxWidgets 2.6.3 instead of 2.6.2.
2853
2854* (MS Windows version): Fix installer to work on Windows 2000 or XP if
2855  run by an unprivileged user.
2856
2857* (MS Windows version): Upgrade to the latest version of InnoSetup (the
2858  installer builder we use) and include new installer translations for
2859  UK English, Spanish, Brazilian Portuguese, Italian, Romanian, and Slovak.
2860
2861* (MS Windows version): aven: Include Catalan and Brazilian Portuguese
2862  translations of messages for wxWidgets (the GUI library we use).
2863
2864* aven: Disable "Highlight exported points" if there aren't any.
2865
2866* Updates to French translation from Michel Bovey.  Also updates to German,
2867  Italian, Catalan, Spanish, and Romanian translations.
2868
2869* (Unix version): test suite: fix smoke test to pass even without X running
2870  (it was meant to but the code had a bug).
2871
2872* aven: Check if OpenGL is available and exit cleanly with a helpful error
2873  if it isn't.
2874
2875* (Unix version): aven: Fix --help and --version to work without a working
2876  X display (provided it's built with wxWidgets 2.5.1 or newer).
2877
2878* aven: Automatically select the presentation tab of the notebook when the user
2879  selects "New Presentation" or "Open Presentation".
2880
2881* aven: Fix "Delete" in the presentation list to not get passed on (and so not
2882  reset to default view as well).
2883
2884* aven: Fix Ctrl+Insert in the presentation list not to segfault if the list is
2885  empty.
2886
2887* aven: Fix Cursor Up and Down in the presentation list to move the highlight
2888  up and down instead of being passed on and moving the survey.
2889
2890* aven: Improve SVG output compatibility.  Tested with Mozilla Firefox 1.5,
2891  Adobe's SVG browser plugin, Gimp 2.2.8, Gqview 2.0.0, Opera 8.5,
2892  Safari 2.0.3, and InkScape 0.42.
2893
2894* aven: Put a 5mm border around exported SVG files to allow for station markers
2895  and non-zero width lines.
2896
2897* aven: Fix crash when exporting as SVG or Sketch if labels or surface data
2898  was turned on.
2899
2900* aven: Actually close the file we're exporting which fixes problems with it
2901  not always being fully written.
2902
2903Changes in 1.1.7 (2005.10.18):
2904
2905* cavern: Add validity checking for dates in *date commands (with feature
2906  test in testsuite).  A date entered as just "year" or "year.month" now
2907  becomes a date range for the relevant period (previously it became a single
2908  date near the middle of that period).
2909
2910* extend: Fixed 2 uninitialised flags (should fix erratic behaviour on
2911  with MS Windows).
2912
2913* extend: Default output name for a file called input.3d is now input_extend.3d
2914  rather than just extend.3d (which was annoying if you wanted to extend
2915  several surveys in the same directory).
2916
2917* aven: OpenGL 2.0 always includes support for point sprites so rework
2918  our check for them to include that knowledge.
2919
2920* aven: Regenerate depth bar if user switches to/from metric units.
2921
2922* aven: Don't clear the "there" mark just because the mouse pointer has
2923  moved off a station.
2924
2925* aven: When processing a .svx file, put the resultant .3d file in the
2926  same directory (since that's where we then try to load it from).
2927
2928* aven: Fix labelling of date colouring on 32 bit platforms.
2929
2930* aven: If "colour by date" is on and we load a survey with no date info
2931  (or all surveyed on the same date) then set "colour by none".
2932
2933* aven: Make the error dialog modal and remove a signal handler once it
2934  has fired to prevent endless (or seemingly endless) cascades of error
2935  dialogs.
2936
2937* aven: Enforce a minimum object volume diameter of 1m to avoid problems
2938  if a survey file with only one station in is loaded.
2939
2940* aven: Fix problems with indicators disappearing when we're drawing
2941  blobs and/or crosses the slow (but always supported) way.  (Problem
2942  introduced in 1.1.6).
2943
2944* (Unix version): aven: Really stop setting extra toolbar margin when using
2945  GTK2.0.  The attempt to fix this in 1.1.3 failed because __WXGTK12__ is
2946  set for GTK+ 1.2 or *any later release* so is true for GTK+ 2.0 too!
2947
2948* (Unix version): aven: Add details of which of wxGTK, wxMotif, and wxX11
2949  we've been compiled with, and which GTK+/Motif version where appropriate.
2950
2951* (Unix version): Fixed build on Fedora Core 3.
2952
2953* documentation: Updates to 3d file format specification from Mike McCombe.
2954
2955Changes in 1.1.6 (2005.10.10):
2956
2957* (MS Windows version): Distribution is about a third smaller than 1.1.5
2958  (mostly because mingwm10.dll is no longer required).
2959
2960* aven: If aven is asked to load a .svx, .dat, or .mak file, run cavern on
2961  it, showing cavern's output in a window (with errors and warnings clickable
2962  to load the offending file into an editor), and then loading the resulting
2963  3d file.
2964
2965* aven: Added "Colour by Date" option.
2966
2967* aven: Disable "Colour by Depth" option if there's no elevation variation.
2968
2969* aven: Don't crash if trying to load a survey with no elevation variation.
2970  Instead turn off depth colouring.
2971
2972* aven: Export as HPGL added.
2973
2974* aven: Improved update of mouse coordinates and measuring line (thanks to
2975  Martin Green).
2976
2977* aven: Show the coordinates of either the mouse pointer or the nearest
2978  survey station to it (if there is one near enough).  Showing both was
2979  confusing and meant the status bar overflowed on smaller displays.
2980
2981* aven: When printing an extended elevation, don't show bearing and elevation.
2982
2983* aven: Don't lock "flat" surveys which aren't extended elevations - a
2984  flat survey with LRUD data isn't flat any more!
2985
2986* aven: When we have to draw blobs and crosses the slow way (because the
2987  graphics hardware doesn't support the fast way), draw them so that they
2988  should appear at the correct depth into the 3D scene instead of on top
2989  of everything else.
2990
2991* aven: Make "play presentation backwards" icon green to match the other
2992  presentation icons.
2993
2994* (MS Windows version): aven: Mouse clicks on the survey view now set the
2995  keyboard focus there.
2996
2997* (MS Windows version): aven: Fix first redraw of a newly loaded survey.
2998
2999* (MS Windows version): aven: Fix redrawing of measuring line.
3000
3001* cavern: Store dates for img_XSECT.
3002
3003* cavern: Fixed small one-off memory leak if you specify -o more than once.
3004
3005* (Unix version): Check environmental variable LC_MESSAGES when deciding what
3006  language to use for messages.
3007
3008* (MS Windows version): "Print" on a 3d file now prints through aven rather
3009  than the separate printer driver (Unix has done this for some time).
3010
3011* Removed old printer drivers.
3012
3013* img library: When creating a 3d file, ignore img_XSECT if we've been asked
3014  to write a file format version which doesn't support it.
3015
3016Changes in 1.1.5 (2005.09.20):
3017
3018* (MS Windows version): aven: Fixed crash on start-up (introduced in 1.1.4).
3019
3020* aven: Make blobs round like they are in Survex 1.0.
3021
3022* aven: If the graphics drivers don't support drawing blobs using OpenGL
3023  point markers, fall back to drawing filled circles.
3024
3025* aven: If the graphics drivers support it, draw crosses as texture mapped
3026  OpenGL point markers which is much faster.
3027
3028* aven: Cross size increased to match Survex 1.0.
3029
3030* aven: We must update which blobs are displayed if display of surface or
3031  underground legs is toggled.
3032
3033* cavern: Fix handling of a *solve followed by survey data, none of which is
3034  attached to the previous data.
3035
3036* cavern: Fixed "No survey data" error when a *solve is followed by another
3037  *solve (or the implicit solve at the end of processing) with no data between
3038  them.
3039
3040Changes in 1.1.4 (2005.09.19):
3041
3042* aven: Added Aven's icon to the "About" dialog.
3043
3044* aven: Use localised character for the decimal point (e.g. "," in most
3045  continental European countries).
3046
3047* aven: Previously the survey tree would get focus and then take keypresses
3048  (e.g. "P", "L", "Delete").  Now we pass most keypresses across so they
3049  operate on the cave, and transfer the input focus across when we do.
3050
3051* aven: Make pressing "Return" in the tree control expand/collapse a subtree.
3052
3053* aven: Speed up intialisation by delaying creation of OpenGL lists until
3054  they're needed.
3055
3056* aven: Added Mark Shinwell's bounding box with shadow of the survey.
3057
3058* aven: Disable the "Tubes" button/menu item when there's no LRUD data.
3059
3060* aven: Reworded "Restore Default Settings" as "Restore Default View".
3061
3062* (Unix version): aven: Set sensible default margins for printing and preserve
3063  any margin values the user specifies between runs (previously margins
3064  defaulted to 0 each time aven was run).
3065
3066* Documentation: Document *DATA PASSAGE in the manual.
3067
3068Changes in 1.1.3 (2005.09.07):
3069
3070* (Microsoft Windows version): Fixed build problems.
3071
3072* cavern: Allow OMIT character (-) for left/right/up/down.
3073
3074* aven: Remove an unnecessary menu separator.
3075
3076* aven: Fix "Find" and "Hide" toolbar buttons to work with GTK2.0.
3077
3078* aven: Make the tooltip for "Hide" show the number of found stations.
3079
3080* aven: If * or ? is used in a glob-style pattern, force a non-substring match.
3081
3082* aven: Enable "New Presentation" when there's a 3d file loaded, rather than
3083  when there's a presentation loaded.
3084
3085* aven: Make entrances green in side panel tree list to match green blobs used
3086  in cave view.
3087
3088* aven: Don't show surface labels if we're not showing surface data, etc.
3089
3090* aven: Merge "Start Rotation" and "Stop Rotation" into "Toggle Rotation" and
3091  make "Space" the key for this.  Keep Return working "Stop Rotation" so
3092  existing users are happy, but don't advertise it.
3093
3094* aven: Normalise filename by adding any extension used, and use the normalised
3095  filename for file history and window title.
3096
3097* (Unix version): aven: Stop setting extra toolbar margin when using GTK2.0
3098  as the toolbar buttons already have a sensible margin - the extra margin is
3099  only needed with GTK1.2.
3100
3101* aven: Fix handling of plumb legs in tube model.
3102
3103* aven: Fixed swapped L and R in tube model.
3104
3105* extend: Preserve UD cross-section information in extended elevation.
3106
3107* extend: Add new messages for John Pybus' enhancements.
3108
3109Changes in 1.1.2 (never formally released):
3110
3111* Added support for LRUD data in .svx files, in .3d files, and aven can
3112  now load and display it on screen and on printouts.  The ability to "fake"
3113  LRUD data in aven is gone for now but will reappear in some form later.
3114
3115* cavern: Removed support for writing Chasm's 3dx format.  We're going to
3116  fold any desirable missing chasm functionality into aven.
3117
3118* aven: Rearranged mouse actions as discussed on the mailing list.  Added
3119  cursors for each different mouse action to help the user learn what each
3120  does.  Also added cursors for the "compass" and "clino" as well as the
3121  scalebar to suggest to the user that they can be dragged to change the view.
3122
3123* (Unix version): aven: Don't segfault if LANG isn't a known language.
3124
3125* tests/smoketest.tst: If X windows is running, check that we can run aven
3126  with --help and --version.
3127
3128* tests/cavern.tst: Fixed cavern.tst to warn if it is skipping a test because
3129  no results are listed for it.  This revealed that there was a "newline" test
3130  which should have been called "badnewline", and was a broken testcase too!
3131  Fixed all these problems.
3132
3133* cavern: Applied Simeon Warner's patch for handling backcompass, backclino,
3134  and omitted forward compass/clino readings in Compass DAT files.  Added
3135  a feature test for this to the testsuite.
3136
3137* It no longer makes sense to have an option not to build aven or to build aven
3138  without OpenGL so remove old machinery for this from configure and the
3139  sources.
3140
3141* (Unix version): configure: Check if "-lXxf86vm" is needed.
3142
3143* configure: Better output for strcasecmp test.
3144
3145* aven: Fix crosses to work much better.  Not a total fix - their position
3146  in the Z buffer isn't correct and they're rather slow to plot.
3147
3148* aven: Don't regenerate the hittest grid every time the mouse moves while
3149  animating, which solves the mysterious pausing effect (thanks go to Martin
3150  Green for spotting this!)  Also clear all the status bar coordinates when
3151  animating.
3152
3153* aven: Sort out clashing menu shortcuts in some languages.
3154
3155* aven: Fixed compilation problem on x86_64
3156
3157* SPUD: Pruned out stuff which has been done or which is not actually relevant
3158  to this branch.
3159
3160* Merge various changes from 1.0 branch:
3161
3162  + aven: Port over "printing from aven" functionality.
3163
3164  + aven: Port over "export as" functionality,
3165
3166  + Add David Loeffler's vim mode for .svx files.
3167
3168* aven: Fix check for whether a label is behind us in perspective view.
3169
3170* aven: Don't use an opengl list for drawing the indicators - we typically make
3171  a new list each time we plot them anyway.
3172
3173* Remove lingering traces of support for RISC OS and pre-386 MSDOS
3174
3175* aven: Set icon on non-Windows platforms too.  This means that with
3176  WindowMaker on Unix you get an icon on the AppIcon by default.
3177
3178* configure: Update wxWindows checks to handle newer wx versions.
3179
3180* Make all maintainer perl scripts "use bytes;" to avoid utf-8 double encoding
3181  problems.  They also all require Perl 5.8 now (hopefully this isn't an issue
3182  for anyone building from CVS).
3183
3184* acinclude.m4: Quote macro name for fix autotools warning.
3185
3186* Documentation: "tilt up" is "'" not ",".
3187
3188* aven: Add support for mousewheels (to tilt the cave).
3189
3190* aven: Fixed twisted transitions to and from pitches in certain cases.
3191
3192* aven: Pick a sensible initial window size when the user's desktop is spread
3193  over more than one monitor (works best with wx2.5 or newer, but try to do
3194  better with wx2.4 or earlier as well).
3195
3196* aven: Initialise GfxCore slightly later to avoid visual glitch from notebook
3197  contents being visible before any survey is loaded.
3198
3199* aven: Allow a coloured texture to be used
3200
3201* aven: Don't initialise until we have data (to the user, this means the window
3202  is default colour (grey for most systems) not black until a survey is
3203  loaded).
3204
3205* aven: Fixed weird "shadowed" icons.
3206
3207Changes in 1.1.1 (2004-10-06):
3208
3209* (Microsoft Windows version): aven: Hopefully fix loading a survey file at
3210  startup.
3211
3212* aven: Delay loading the bitmap for the "About" dialog until it is first
3213  needed.  We want start up to be as quick as possible.
3214
3215Changes between 1.0.32 and 1.1.0 (never formally released):
3216
3217* NOTE: Survex 1.1.X releases are development snapshots made available for
3218  the purposes of allowing wider testing and getting more user feedback.  Once
3219  the code has stabilised the version number will be raised to 1.2.0.
3220
3221* aven: Now uses OpenGL for 3d rendering - you may need to install drivers if
3222  you're using Windows 95 - these can be obtained from:
3223  http://download.microsoft.com/download/win95upg/info/1/W95/EN-US/Opengl95.exe
3224
3225* aven: Solid passages - passage dimensions are currently inferred from
3226  the leg length (pretty effective as you can measure longer legs in
3227  larger passages).  Use of real LRUD data coming soon...
3228
3229* aven: Depth colouring is now continuously varying.
3230
3231* aven: Colour by depth can now be turned off (and there's the start of a
3232  framework for properly implementing colour by date, error, etc).
3233
3234* aven: Find stations moved onto the toolbar and now uses a simple wildcarded
3235  match (? matches any character, * matches any number of characters).
3236
3237* aven: We now use the status bar for coordinates, distances, etc to make
3238  better use of screen space.
3239
3240* aven: Full screen mode (F11).
3241
3242* aven: Perspective view.
3243
3244* aven: Context sensitive cursor shape - needs more work.
3245
3246* aven: Mouse actions changed (hopefully they're now more natural, but
3247  you may find the change disorientating - feedback wanted on this).
3248
3249* aven: Added "presentations" which allow you to set up fly-through paths
3250  and load/save/run them.
3251
3252* aven: A presentation can be exported as a movie file.
3253
3254* aven: Added Save screenshot facility.
3255
3256* aven: Depth fogging option.
3257
3258* aven: Added Smooth Lines option.
3259
3260* aven: Added Textured Walls option.
3261
3262* aven: If a survey has surface legs but no underground legs, default to
3263  showing the surface legs.
3264
3265* cavern: Dates given to *date are now stored in the 3d file.
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