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/ ) {
110 # return the file name root (ending at last ".")
115 $pos = rindex($file, ".");
116 return substr($file, 0, $pos);
120 # 1. dem2node work_dir dem_file tolerance^2 (meters)
122 # - dem2node .. dem_file 160000
124 # splits dem file into 64 file.node's which contain the
125 # irregularly fitted vertices
128 $command = "Dem2node/dem2node $work_dir $dem_file $error";
129 $command = fix_command($command);
130 print "Running '$command'\n";
132 open(OUT, "$command |");
137 $subdir =~ s/^Dir = //;
140 if ( m/Quad name field/ ) {
143 $quad_name =~ s/.*Quad name field: //;
144 # crunch consequetive spaces
145 $quad_name =~ s/ +/ /g;
147 print "QUAD NAME = $quad_name\n";
154 # 2. triangle -q file (Takes file.node and produces file.1.node and
157 print "Subdirectory for this dem file is $subdir\n";
160 @FILES = `ls $subdir`;
161 foreach $file ( @FILES ) {
164 if ( ($file =~ m/\.node$/) && ($file !~ m/\.\d\.node$/) ) {
165 # special handling is needed if .poly file exists
167 $fileroot =~ s/\.node$//;
168 print "$subdir/$fileroot\n";
169 $command = "Triangle/triangle";
170 if ( -r "$subdir/$fileroot.poly" ) {
173 $command .= " -a$max_area -q10 $subdir/$file";
174 $command = fix_command($command);
175 print "Running '$command'\n";
176 open(OUT, "$command |");
182 # remove input file.node
183 if ( $remove_tmps ) {
184 unlink("$subdir/$file");
191 # 3. fixnode file.dem subdir
193 # Take the original .dem file (for interpolating Z values) and the
194 # subdirecotry containing all the file.1.node's and replace with
198 $command = "FixNode/fixnode $dem_file $subdir";
199 $command = fix_command($command);
200 print "Running '$command'\n";
201 open(OUT, "$command |") || die "cannot run command\n";
209 # 4.1 splittris file (.1.node) (.1.ele)
211 # Extract the corner, edge, and body vertices (in original
212 # geodetic coordinates) and normals (in cartesian coordinates) and
213 # save them in something very close to the .obj format as file.se,
214 # file.sw, file.nw, file.ne, file.north, file.south, file.east,
215 # file.west, and file.body. This way we can reconstruct the
216 # region using consistant edges and corners.
218 # Arbitration rules: If an opposite edge file already exists,
219 # don't create our matching edge. If a corner already exists,
220 # don't create ours. Basically, the early bird gets the worm and
221 # gets to define the edge verticies and normals. All the other
222 # adjacent tiles must use these.
225 @FILES = `ls $subdir`;
226 foreach $file ( @FILES ) {
228 if ( $file =~ m/\.1\.node$/ ) {
229 $file =~ s/\.node$//; # strip off the ".node"
231 $command = "SplitTris/splittris $subdir/$file";
232 $command = fix_command($command);
233 print "Running '$command'\n";
234 open(OUT, "$command |");
240 if ( $remove_tmps ) {
241 unlink("$subdir/$file.node");
242 unlink("$subdir/$file.node.orig");
243 unlink("$subdir/$file.ele");
250 # 4.2 read in the split of version of the tiles, reconstruct the tile
251 # using the proper shared corners and edges. Save as a node file
252 # so we can retriangulate.
255 @FILES = `ls $subdir`;
256 foreach $file ( @FILES ) {
258 if ( $file =~ m/\.1\.body$/ ) {
259 $file =~ s/\.1\.body$//; # strip off the ".body"
261 $command = "AssemTris/assemtris $subdir/$file";
262 $command = fix_command($command);
263 print "Running '$command'\n";
264 open(OUT, "$command |");
270 if ( $remove_tmps ) {
271 unlink("$subdir/$file.body");
277 # 4.3 Retriangulate reassembled files (without -q option) so no new
278 # nodes are generated.
281 @FILES = `ls $subdir`;
282 foreach $file ( @FILES ) {
285 if ( ($file =~ m/\.node$/) && ($file !~ m/\.\d\.node$/) ) {
287 $base =~ s/\.node$//;
288 print("Test for $subdir/$base.q\n");
290 $command = "Triangle/triangle";
292 if ( -r "$subdir/$base.q" ) {
293 # if triangle hangs, we can create a filebase.q for
294 # the file it hung on. Then, we test for that file
295 # here which causes the incremental algorithm to run
296 # (which shouldn't ever hang.)
300 if ( -r "$subdir/$base.poly" ) {
301 $command .= " -pc $subdir/$base";
303 $command .= " $subdir/$file";
306 $command = fix_command($command);
307 print "Running '$command'\n";
308 open(OUT, "$command |");
314 # remove input file.node
315 if ( $remove_tmps ) {
316 unlink("$subdir/$file");
323 # 5. tri2obj file (.1.node) (.1.ele)
325 # Take the file.1.node and file.1.ele and produce file.1.obj
327 # Extracts normals out of the shared edge/vertex files, and uses
328 # the precalcuated normals for these nodes instead of calculating
329 # new ones. By sharing normals as well as vertices, not only are
330 # the gaps between tiles eliminated, but the colors and lighting
331 # transition smoothly across tile boundaries.
334 @FILES = `ls $subdir`;
335 foreach $file ( @FILES ) {
337 if ( $file =~ m/\.1\.node$/ ) {
338 $file =~ s/\.node$//; # strip off the ".node"
340 $command = "Tri2obj/tri2obj $subdir/$file";
341 $command = fix_command($command);
342 print "Running '$command'\n";
343 open(OUT, "$command |");
349 if ( $remove_tmps ) {
350 unlink("$subdir/$file.node");
351 unlink("$subdir/$file.node.orig");
352 unlink("$subdir/$file.ele");
359 # 6. strip file.1.obj
361 # Strip the file.1.obj's. Note, strips doesn't handle the minimal
362 # case of striping a square correctly.
364 # 7. cp stripe.objf file.2.obj
366 # strips produces a file called "stripe.objf" ... copy this to file.2.obj
369 @FILES = `ls $subdir`;
370 foreach $file ( @FILES ) {
372 if ( $file =~ m/\.1\.obj$/ ) {
374 $newfile =~ s/\.1\.obj$//;
375 $command = "Stripe_w/strips $subdir/$file $subdir/$newfile.2.obj";
376 $command = fix_command($command);
377 print "Running '$command'\n";
379 open(OUT, "$command |");
385 # copy to destination file
387 # $newfile =~ s/\.1\.obj$//;
388 # print "Copying to $subdir/$newfile.2.obj\n";
389 # open(IN, "<bands.d");
390 # open(IN, "<stripe.objf");
391 # open(OUT, ">$subdir/$newfile.2.obj");
398 if ( $remove_tmps ) {
399 unlink("$subdir/$file");
408 # Sort file.2.obj by strip winding
411 @FILES = `ls $subdir`;
412 foreach $file ( @FILES ) {
414 if ( $file =~ m/\.2\.obj$/ ) {
416 $newfile =~ s/\.2\.obj$/.obj/;
418 $command = "FixObj/fixobj $subdir/$file $subdir/$newfile";
419 $command = fix_command($command);
420 print "Running '$command'\n";
421 open(OUT, "$command |");
427 if ( $remove_tmps ) {
428 unlink("$subdir/$file");
437 # rename, compress, and install scenery files
441 $tmp =~ s/$work_dir//;
442 # print "Temp dir = $tmp\n";
443 $install_dir = "$fg_root/$tmp";
445 # try to get rid of double //
446 $install_dir =~ s/\/+/\//g;
447 print "Install dir = $install_dir\n";
449 if ( $system !~ m/CYGWIN32/ ) {
450 $command = "mkdir -p $install_dir";
452 $command = "Makedir/makedir $install_dir";
453 $command = fix_command($command);
458 open(OUT, "$command |");
465 # write out version and info record
466 open(VERSION, ">$install_dir/VERSION") ||
467 die "Cannot open $install_dir/VERSION for writing\n";
468 print VERSION "FGFS Scenery Version $scenery_format_version\n";
469 $date = `date`; chop($date);
470 print VERSION "Created by $ENV{LOGNAME} on $date\n";
472 print VERSION "DEM File Name = $dem_file\n";
473 print VERSION "DEM Label = $quad_name\n";
474 print VERSION "Error Tolerance = $error (this value is squared)\n";
477 @FILES = `ls $subdir`;
478 foreach $file ( @FILES ) {
480 if ( $file =~ m/\d\d.obj$/ ) {
481 $new_file = file_root($file);
484 "gzip -v --best < $subdir/$file > $install_dir/$new_file.gz";
485 $command = fix_command($command);
487 # $command = fix_command($command);
488 print "Running '$command'\n";
489 open(OUT, "$command |");
495 if ( $remove_tmps ) {
496 unlink("$subdir/$file");
498 } elsif ( $file =~ m/\d\d.apt$/ ) {
499 $command = "cp $subdir/$file $install_dir/$file";
500 # $command = fix_command($command);
501 print "Running '$command'\n";
502 open(OUT, "$command |");
512 #---------------------------------------------------------------------------
514 # Revision 1.29 1998/10/02 21:41:56 curt
515 # Added Makedir + fixes for win32.
517 # Revision 1.28 1998/09/17 18:40:15 curt
518 # Changes to allow multiple copies of the scenery processing tools
519 # to be run concurrently.
521 # Revision 1.27 1998/09/09 20:58:35 curt
522 # Fixes and tweaks to handle area cutouts for airports.
524 # Revision 1.26 1998/08/26 22:31:29 curt
525 # Write out version and "meta" info into each dem's subdirectory containing
528 # Revision 1.25 1998/07/22 21:46:09 curt
531 # Revision 1.24 1998/07/21 04:33:47 curt
532 # More tweaks for sub-area cutouts.
534 # Revision 1.23 1998/07/20 12:55:35 curt
535 # Several tweaks to start incorporating area cutouts into the pipeline.
537 # Revision 1.22 1998/07/08 14:49:13 curt
540 # Revision 1.21 1998/06/08 17:18:37 curt
541 # Mods to test new Stripe fixes from Wilbur Streett.
543 # Revision 1.20 1998/06/05 18:20:24 curt
544 # Added DemInfo to dump out "A" record DEM info.
545 # Modified process-dem.pl to work in a temp directory and compress/copy the
546 # result to the final destination.
548 # Revision 1.19 1998/05/27 02:25:26 curt
549 # Added a flag to the first run of "triangle" to impose a maximum triangle
550 # size. This forces really flat areas to be subdivided a certain amount
551 # anyways. This makes for slightly more interesting scenery.
553 # Revision 1.18 1998/05/20 20:55:40 curt
556 # Revision 1.17 1998/04/28 01:23:25 curt
557 # Added a work around so that we can get past the "triangle" program
558 # hanging, by aborting and rerunning with that tile marked to use the "-i"
561 # Revision 1.16 1998/04/18 03:57:53 curt
562 # Added zlib library support.
564 # Revision 1.15 1998/04/08 23:24:07 curt
565 # Adopted Gnu automake/autoconf system.
567 # Revision 1.14 1998/04/06 21:09:38 curt
568 # Additional win32 support.
569 # Fixed a bad bug in dem file parsing that was causing the output to be
570 # flipped about x = y.
572 # Revision 1.13 1998/03/19 02:52:52 curt
573 # Updated to reflect some minor tool reorganization and the creation of class
574 # to handle DEM processing needs.
576 # Revision 1.12 1998/03/19 01:48:35 curt
577 # Added gpc-2.01 (generic polygon clipping library)
579 # Revision 1.11 1998/03/03 03:36:57 curt
582 # Revision 1.10 1998/02/01 03:42:26 curt
583 # Modifications to handle compressed dem files.
585 # Revision 1.9 1998/01/27 18:36:54 curt
586 # Lots of updates to get back in sync with changes made over in .../Src/
588 # Revision 1.8 1998/01/21 17:59:05 curt
589 # Uncomment lines to remove several intermediate files.
591 # Revision 1.7 1998/01/19 19:51:06 curt
592 # A couple final pre-release tweaks.
594 # Revision 1.6 1998/01/15 21:33:33 curt
595 # Assembling triangles and building a new .node file with the proper shared
596 # vertices now works. Now we just have to use the shared normals and we'll
599 # Revision 1.5 1998/01/15 02:50:08 curt
600 # Tweaked to add next stage.
602 # Revision 1.4 1998/01/14 15:55:34 curt
603 # Finished splittris, started assemtris.
605 # Revision 1.3 1998/01/14 02:15:52 curt
606 # Updated front end script to keep plugging away on tile fitting.
608 # Revision 1.2 1998/01/12 20:42:08 curt
609 # Working on fitting tiles together in a seamless manner.
611 # Revision 1.1 1998/01/09 23:06:46 curt