source: git/NEWS @ 9fe70e44

1.2.39
Last change on this file since 9fe70e44 was 9fe70e44, checked in by Olly Betts <olly@…>, 4 months ago

Update for 1.2.39

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