3 #---------------------------------------------------------------------------
4 # Toplevel script to automate DEM file processing and conversion
6 # Written by Curtis Olson, started January 1998.
8 # Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
10 # This program is free software; you can redistribute it and/or modify
11 # it under the terms of the GNU General Public License as published by
12 # the Free Software Foundation; either version 2 of the License, or
13 # (at your option) any later version.
15 # This program is distributed in the hope that it will be useful,
16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 # GNU General Public License for more details.
20 # You should have received a copy of the GNU General Public License
21 # along with this program; if not, write to the Free Software
22 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 # (Log is kept at end of this file)
26 #---------------------------------------------------------------------------
29 # format version number
30 $scenery_format_version = "0.1";
32 $max_area = 10000; # maximum triangle area
35 $| = 1; # flush buffers after every write
52 die "Usage: $0 <fg-root-dir> <work-dir> <error^2> dem-file(s)\n";
57 $fg_root = shift(@ARGV);
58 $work_dir = shift(@ARGV);
59 $error = shift(@ARGV);
62 while ( $dem_file = shift(@ARGV) ) {
63 print "Source file = $dem_file Error tolerance = $error\n";
66 die "I doubt you'll be happy with an error tolerance as " .
74 $subdir = "./work/Scenery/w120n030/w111n033";
75 print "WARNING: Hardcoding subdir = $subdir\n";
78 triangle_1() if ( $do_triangle_1 );
79 fixnode() if ( $do_fixnode );
80 splittris() if ( $do_splittris );
81 assemtris() if ( $do_assemtris );
82 triangle_2() if ( $do_triangle_2);
83 tri2obj() if ( $do_tri2obj );
84 strips() if ( $do_strips );
85 fixobj() if ( $do_fixobj );
86 install() if ( $do_install );
94 # fix command to work with windoze, replaces first "/" with "\\"
101 if ( $system =~ m/CYGWIN32/ ) {
109 # return the file name root (ending at last ".")
114 $pos = rindex($file, ".");
115 return substr($file, 0, $pos);
119 # 1. dem2node work_dir dem_file tolerance^2 (meters)
121 # - dem2node .. dem_file 160000
123 # splits dem file into 64 file.node's which contain the
124 # irregularly fitted vertices
127 $command = "Dem2node/dem2node $work_dir $dem_file $error";
128 $command = fix_command($command);
129 print "Running '$command'\n";
131 open(OUT, "$command |");
136 $subdir =~ s/^Dir = //;
139 if ( m/Quad name field/ ) {
142 $quad_name =~ s/.*Quad name field: //;
143 # crunch consequetive spaces
144 $quad_name =~ s/ +/ /g;
146 print "QUAD NAME = $quad_name\n";
153 # 2. triangle -q file (Takes file.node and produces file.1.node and
156 print "Subdirectory for this dem file is $subdir\n";
159 @FILES = `ls $subdir`;
160 foreach $file ( @FILES ) {
163 if ( ($file =~ m/\.node$/) && ($file !~ m/\.\d\.node$/) ) {
164 # special handling is needed if .poly file exists
166 $fileroot =~ s/\.node$//;
167 print "$subdir/$fileroot\n";
168 $command = "Triangle/triangle";
169 if ( -r "$subdir/$fileroot.poly" ) {
172 $command .= " -a$max_area -q10 $subdir/$file";
173 $command = fix_command($command);
174 print "Running '$command'\n";
175 open(OUT, "$command |");
181 # remove input file.node
182 if ( $remove_tmps ) {
183 unlink("$subdir/$file");
190 # 3. fixnode file.dem subdir
192 # Take the original .dem file (for interpolating Z values) and the
193 # subdirecotry containing all the file.1.node's and replace with
197 $command = "FixNode/fixnode $dem_file $subdir";
198 $command = fix_command($command);
199 print "Running '$command'\n";
200 open(OUT, "$command |") || die "cannot run command\n";
208 # 4.1 splittris file (.1.node) (.1.ele)
210 # Extract the corner, edge, and body vertices (in original
211 # geodetic coordinates) and normals (in cartesian coordinates) and
212 # save them in something very close to the .obj format as file.se,
213 # file.sw, file.nw, file.ne, file.north, file.south, file.east,
214 # file.west, and file.body. This way we can reconstruct the
215 # region using consistant edges and corners.
217 # Arbitration rules: If an opposite edge file already exists,
218 # don't create our matching edge. If a corner already exists,
219 # don't create ours. Basically, the early bird gets the worm and
220 # gets to define the edge verticies and normals. All the other
221 # adjacent tiles must use these.
224 @FILES = `ls $subdir`;
225 foreach $file ( @FILES ) {
227 if ( $file =~ m/\.1\.node$/ ) {
228 $file =~ s/\.node$//; # strip off the ".node"
230 $command = "SplitTris/splittris $subdir/$file";
231 $command = fix_command($command);
232 print "Running '$command'\n";
233 open(OUT, "$command |");
239 if ( $remove_tmps ) {
240 unlink("$subdir/$file.node");
241 unlink("$subdir/$file.node.orig");
242 unlink("$subdir/$file.ele");
249 # 4.2 read in the split of version of the tiles, reconstruct the tile
250 # using the proper shared corners and edges. Save as a node file
251 # so we can retriangulate.
254 @FILES = `ls $subdir`;
255 foreach $file ( @FILES ) {
257 if ( $file =~ m/\.1\.body$/ ) {
258 $file =~ s/\.1\.body$//; # strip off the ".body"
260 $command = "AssemTris/assemtris $subdir/$file";
261 $command = fix_command($command);
262 print "Running '$command'\n";
263 open(OUT, "$command |");
269 if ( $remove_tmps ) {
270 unlink("$subdir/$file.body");
276 # 4.3 Retriangulate reassembled files (without -q option) so no new
277 # nodes are generated.
280 @FILES = `ls $subdir`;
281 foreach $file ( @FILES ) {
284 if ( ($file =~ m/\.node$/) && ($file !~ m/\.\d\.node$/) ) {
286 $base =~ s/\.node$//;
287 print("Test for $subdir/$base.q\n");
289 $command = "Triangle/triangle";
291 if ( -r "$subdir/$base.q" ) {
292 # if triangle hangs, we can create a filebase.q for
293 # the file it hung on. Then, we test for that file
294 # here which causes the incremental algorithm to run
295 # (which shouldn't ever hang.)
299 if ( -r "$subdir/$base.poly" ) {
300 $command .= " -pc $subdir/$base";
302 $command .= " $subdir/$file";
305 $command = fix_command($command);
306 print "Running '$command'\n";
307 open(OUT, "$command |");
313 # remove input file.node
314 if ( $remove_tmps ) {
315 unlink("$subdir/$file");
322 # 5. tri2obj file (.1.node) (.1.ele)
324 # Take the file.1.node and file.1.ele and produce file.1.obj
326 # Extracts normals out of the shared edge/vertex files, and uses
327 # the precalcuated normals for these nodes instead of calculating
328 # new ones. By sharing normals as well as vertices, not only are
329 # the gaps between tiles eliminated, but the colors and lighting
330 # transition smoothly across tile boundaries.
333 @FILES = `ls $subdir`;
334 foreach $file ( @FILES ) {
336 if ( $file =~ m/\.1\.node$/ ) {
337 $file =~ s/\.node$//; # strip off the ".node"
339 $command = "Tri2obj/tri2obj $subdir/$file";
340 $command = fix_command($command);
341 print "Running '$command'\n";
342 open(OUT, "$command |");
348 if ( $remove_tmps ) {
349 unlink("$subdir/$file.node");
350 unlink("$subdir/$file.node.orig");
351 unlink("$subdir/$file.ele");
358 # 6. strip file.1.obj
360 # Strip the file.1.obj's. Note, strips doesn't handle the minimal
361 # case of striping a square correctly.
363 # 7. cp stripe.objf file.2.obj
365 # strips produces a file called "stripe.objf" ... copy this to file.2.obj
368 @FILES = `ls $subdir`;
369 foreach $file ( @FILES ) {
371 if ( $file =~ m/\.1\.obj$/ ) {
373 $newfile =~ s/\.1\.obj$//;
374 $command = "Stripe_w/strips $subdir/$file $subdir/$newfile.2.obj";
375 $command = fix_command($command);
376 print "Running '$command'\n";
378 open(OUT, "$command |");
384 # copy to destination file
386 # $newfile =~ s/\.1\.obj$//;
387 # print "Copying to $subdir/$newfile.2.obj\n";
388 # open(IN, "<bands.d");
389 # open(IN, "<stripe.objf");
390 # open(OUT, ">$subdir/$newfile.2.obj");
397 if ( $remove_tmps ) {
398 unlink("$subdir/$file");
407 # Sort file.2.obj by strip winding
410 @FILES = `ls $subdir`;
411 foreach $file ( @FILES ) {
413 if ( $file =~ m/\.2\.obj$/ ) {
415 $newfile =~ s/\.2\.obj$/.obj/;
417 $command = "FixObj/fixobj $subdir/$file $subdir/$newfile";
418 $command = fix_command($command);
419 print "Running '$command'\n";
420 open(OUT, "$command |");
426 if ( $remove_tmps ) {
427 unlink("$subdir/$file");
436 # rename, compress, and install scenery files
440 $tmp =~ s/$work_dir//;
441 # print "Temp dir = $tmp\n";
442 $install_dir = "$fg_root/$tmp";
443 print "Install dir = $install_dir\n";
444 system("mkdir -p $install_dir");
446 # write out version and info record
447 open(VERSION, ">$install_dir/VERSION") ||
448 die "Cannot open $install_dir/VERSION for writing\n";
449 print VERSION "FGFS Scenery Version $scenery_format_version\n";
450 $date = `date`; chop($date);
451 print VERSION "Created by $ENV{LOGNAME} on $date\n";
453 print VERSION "DEM File Name = $dem_file\n";
454 print VERSION "DEM Label = $quad_name\n";
455 print VERSION "Error Tolerance = $error (this value is squared)\n";
458 @FILES = `ls $subdir`;
459 foreach $file ( @FILES ) {
461 if ( $file =~ m/\d\d.obj$/ ) {
462 $new_file = file_root($file);
464 $command = "gzip -v --best < $subdir/$file > $install_dir/$new_file.gz";
465 # $command = fix_command($command);
466 print "Running '$command'\n";
467 open(OUT, "$command |");
473 if ( $remove_tmps ) {
474 unlink("$subdir/$file");
476 } elsif ( $file =~ m/\d\d.apt$/ ) {
477 $command = "cp $subdir/$file $install_dir/$file";
478 # $command = fix_command($command);
479 print "Running '$command'\n";
480 open(OUT, "$command |");
490 #---------------------------------------------------------------------------
492 # Revision 1.28 1998/09/17 18:40:15 curt
493 # Changes to allow multiple copies of the scenery processing tools
494 # to be run concurrently.
496 # Revision 1.27 1998/09/09 20:58:35 curt
497 # Fixes and tweaks to handle area cutouts for airports.
499 # Revision 1.26 1998/08/26 22:31:29 curt
500 # Write out version and "meta" info into each dem's subdirectory containing
503 # Revision 1.25 1998/07/22 21:46:09 curt
506 # Revision 1.24 1998/07/21 04:33:47 curt
507 # More tweaks for sub-area cutouts.
509 # Revision 1.23 1998/07/20 12:55:35 curt
510 # Several tweaks to start incorporating area cutouts into the pipeline.
512 # Revision 1.22 1998/07/08 14:49:13 curt
515 # Revision 1.21 1998/06/08 17:18:37 curt
516 # Mods to test new Stripe fixes from Wilbur Streett.
518 # Revision 1.20 1998/06/05 18:20:24 curt
519 # Added DemInfo to dump out "A" record DEM info.
520 # Modified process-dem.pl to work in a temp directory and compress/copy the
521 # result to the final destination.
523 # Revision 1.19 1998/05/27 02:25:26 curt
524 # Added a flag to the first run of "triangle" to impose a maximum triangle
525 # size. This forces really flat areas to be subdivided a certain amount
526 # anyways. This makes for slightly more interesting scenery.
528 # Revision 1.18 1998/05/20 20:55:40 curt
531 # Revision 1.17 1998/04/28 01:23:25 curt
532 # Added a work around so that we can get past the "triangle" program
533 # hanging, by aborting and rerunning with that tile marked to use the "-i"
536 # Revision 1.16 1998/04/18 03:57:53 curt
537 # Added zlib library support.
539 # Revision 1.15 1998/04/08 23:24:07 curt
540 # Adopted Gnu automake/autoconf system.
542 # Revision 1.14 1998/04/06 21:09:38 curt
543 # Additional win32 support.
544 # Fixed a bad bug in dem file parsing that was causing the output to be
545 # flipped about x = y.
547 # Revision 1.13 1998/03/19 02:52:52 curt
548 # Updated to reflect some minor tool reorganization and the creation of class
549 # to handle DEM processing needs.
551 # Revision 1.12 1998/03/19 01:48:35 curt
552 # Added gpc-2.01 (generic polygon clipping library)
554 # Revision 1.11 1998/03/03 03:36:57 curt
557 # Revision 1.10 1998/02/01 03:42:26 curt
558 # Modifications to handle compressed dem files.
560 # Revision 1.9 1998/01/27 18:36:54 curt
561 # Lots of updates to get back in sync with changes made over in .../Src/
563 # Revision 1.8 1998/01/21 17:59:05 curt
564 # Uncomment lines to remove several intermediate files.
566 # Revision 1.7 1998/01/19 19:51:06 curt
567 # A couple final pre-release tweaks.
569 # Revision 1.6 1998/01/15 21:33:33 curt
570 # Assembling triangles and building a new .node file with the proper shared
571 # vertices now works. Now we just have to use the shared normals and we'll
574 # Revision 1.5 1998/01/15 02:50:08 curt
575 # Tweaked to add next stage.
577 # Revision 1.4 1998/01/14 15:55:34 curt
578 # Finished splittris, started assemtris.
580 # Revision 1.3 1998/01/14 02:15:52 curt
581 # Updated front end script to keep plugging away on tile fitting.
583 # Revision 1.2 1998/01/12 20:42:08 curt
584 # Working on fitting tiles together in a seamless manner.
586 # Revision 1.1 1998/01/09 23:06:46 curt