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241 commits

Author SHA1 Message Date
curt
47771c9bb4 Several changes related to [trying to] make more effective use of the global 
land cover/land use raster data, but there seem to be some very significant
issues no matter how you cut it ....
 2003-08-22 19:46:28 +00:00
curt
460d6349b0 Add a check for additional degeneracy. 2003-08-22 19:15:48 +00:00
curt
0dc39b1911 Try to be just a bit smarter about how to assign an area type to a triangle. 2003-08-20 17:18:50 +00:00
curt
5943155bad Try an idea that is hopefully slightly more intelligent about what land 
cover area to assign a "default cover" triangle to.
 2003-08-19 02:51:08 +00:00
curt
4ff5acb28c Still support a minimum angle threshold for quality refinement in the 
trangulator wrapper, but this isn't used by the calling layer any more.
 2003-08-19 02:38:08 +00:00
curt
fe6ff15206 Remove --min-angle option. 2003-08-19 02:36:10 +00:00
curt
730c454320 - Test a different approach for assigning land cover attributes to "default' 
cover" areas.  Rather than artificially cut in polygon areas, just lookup
  a land cover type for unassigned triangles.  I think this has potential, but
  it needs more work to eliminate some odd artifacts.

- Revove --min-angle= option.

- Don't re-fit() triangle array to try to achieve a particular range of
  node quantities ... this is all pre-computed with a much smarter, much
  more efficient algorithm.
 2003-08-19 02:35:35 +00:00
curt
f5f961b8c0 Remove support for a "minimum triangle angle" quality constraint when 
triangulating a tile.  A better strategy is to have better input that doesn't
need to hide behind this trick.
 2003-08-19 02:32:11 +00:00
curt
eb3a3a4fa2 Update examples. 2003-08-19 02:30:05 +00:00
curt
efbe6af104 calc_tex_coords() -> sgCalcTexCoords() 2003-08-19 02:29:44 +00:00
curt
0cbbe80488 Changes to track libArray api tweaks. 2003-03-19 22:52:04 +00:00
curt
06985ebabd Changes corresponding to API changes in libArray.a 2003-03-17 04:50:40 +00:00
curt
9f73338a1f Minor tweaks for scenery building process. 2003-03-14 22:22:48 +00:00
curt
aa37052182 Check point ... 2003-03-14 01:51:18 +00:00
curt
d05fd4a8ff Big round of cascading FG -> TG name cleanups (once you get going it's hard 
to stop.) :-)

Also save elevations of 3d polygons into a separate lookup list when they
are loaded by the clipper.
 2003-03-13 21:20:46 +00:00
curt
4abf503817 Rewrite for loops with out iterators so they are more readable. 2003-03-13 20:47:58 +00:00
curt
b66f8ce695 Minor tweaks. 2003-03-13 20:47:31 +00:00
curt
ccde971251 Added support for loading 3d polygons. 2003-03-13 20:37:51 +00:00
curt
c5ab6678f2 Added support for including height information in the intermediate polygon 
format.  The big trick was that the polygon clipper is completely 2d.  So
I needed to add code to preserve the elevations in the clipped output and
fill in plausible elevations for any new points created as a result of the
clipping.
 2003-03-12 21:25:35 +00:00
curt
9c85f16b5f Working towards the ability to specify elevations for a polygon in it's 
intermediate mode.  The goal then is that these elevations would be
preserved throughout the tile construction process and the surrounding
geometry would fill in without gaps.  This has potential applications for
airports and runways of course as well as roads, rivers, streams, railroads,
or any other object where we might want to control the final elevation in
advance.
 2003-03-12 18:23:31 +00:00
curt
b3935db989 Add back code to clip polygons against land mass. This temporarily breaks 
the ability for roads/railways to bridge ocean, but I hope to get that fixed
soon.
 2003-03-11 20:19:09 +00:00
curt
1a46456fbd Use .arr as the intermediate height field rather than .dem since .dem 
implies a different format.
 2003-02-27 21:19:00 +00:00
curt
bd1b254506 Rename: FGPolygon to TGPolygon 2003-02-26 20:59:34 +00:00
curt
7709953518 Rename: FGGenFans -> TGGenFans 2003-02-26 20:36:15 +00:00
curt
61445e9af6 Renaming: 
- FGContourNode -> TGContourNode
 - FGTriNodes    -> TGTriNodes
 - FGTriSeg      -> TGTriSeg
 - FGTriSegments -> TGTriSegments
 2003-02-26 20:25:29 +00:00
curt
0a1108e494 Rename: FGArray -> TGArray 2003-02-26 19:59:25 +00:00
curt
8b269dc000 Erik Hofman: 
A big honkin' set of minor tweaks to bring TerraGear into Irix compliance.
 2003-01-07 22:46:51 +00:00
curt
27a068f721 Various fixes and tweaks. 2003-01-07 19:48:32 +00:00
curt
5bb24ff286 Julian Foad: 
- Put a space between arguments and redirection operator: looks nicer
  and may be necessary in some circumstances.
- Add missing option "--min-angle" to help text.
 2002-11-11 15:19:34 +00:00
curt
65d6f9c623 Tweaks to bring the automake/conf scripts into compliance. 2002-08-29 22:12:43 +00:00
david
7e959be9e8 Modified to clip a runway clearing against water, so that extra land 
isn't created.
 2002-08-02 20:52:04 +00:00
david
90fe08a7c0 Cygwin patches from Dave Luff. 2002-01-30 14:10:00 +00:00
david
d2b2afc33d Cleaned up errors and warnings, mostly namespace problems with cout 
and cerr, but also some SimGear linking problems.
 2002-01-30 13:52:37 +00:00
david
a4e1215761 Ignore files for autogenerated files. 2001-12-30 02:16:03 +00:00
curt
c0b4508955 - fixes to support clamping to a small grid (improves triangulation) 
(These are not yet enabled by default because we haven't addressed what
  happens when snapping a hole boundary, but not the original object to
  fit in the hole.)
 2001-09-18 21:51:24 +00:00
curt
d1424d75c7 - add --height and --width options to build an area less than 10x10 2001-09-18 21:50:18 +00:00
curt
d8dc110d99 - don't clip against landmass (no longer suitable with new poly types) 
- reduce the minimum area for a non-sliver by two orders of magnitude,
  to allow small road, river, and railroad segments
 2001-09-18 21:50:06 +00:00
curt
7a4bac978e Various Irix fixes. Thanks Erik! 2001-07-31 20:14:54 +00:00
curt
8506a3f4d5 - modified landcover code to borrow a cover type from an adjoining 
tile if it ends up as default -- this will help avoid resolution
  errors near rivers, urban areas, etc.
 2001-07-30 19:58:10 +00:00
curt
19d9392863 Renamed libgpc to libgenpolyclip to avoid a conflict with the gnu pascal 
compiler.
 2001-07-11 00:43:55 +00:00
curt
a812248191 Modified to use the master .stg file standard. 
Fixed a bug in triangulating that was potentially overwriting other
  memory when creating the hole list to pass to the triangulator.  This
  fixes a lot of glitches!
 2001-06-22 19:28:29 +00:00
curt
2272a29287 Minor tweaks to track changes in simgear. 2001-05-16 12:27:48 +00:00
curt
abf4e0ad08 Tweaks for Photo inserter util. 2001-05-15 02:03:00 +00:00
curt
472ac57338 More work on photo inserter. 2001-05-03 22:20:38 +00:00
curt
b452149e06 Working on a utility for inserting some simple photo-real scenery into 
terragear scenery.
 2001-05-03 02:00:50 +00:00
curt
483708977a Various reshufflings of directory layout. 2001-04-25 18:55:19 +00:00
curt
587763000e Small tweaks. 2001-04-25 15:06:17 +00:00
curt
0283cdf05b Added support (contributed by David Luff) for UK OSBG36 coordinate systems as 
it impacts texture coordinates.
 2001-04-24 21:10:27 +00:00
curt
522bff9911 Initial revision. 2001-04-24 21:09:49 +00:00
curt
f6e553a1b6 SGD_PI. 2001-03-25 12:10:21 +00:00