-/* splittris.c -- read in a .ele/.node file pair generated by the
- * triangle program and output a simple Wavefront .obj
- * file for the north, south, east, and west edge
- * verticies ... including the normals.
- *
- * Written by Curtis Olson, started January 1998.
- *
- * Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * $Id$
- * (Log is kept at end of this file) */
+// splittris.cxx -- read in a .ele/.node file pair generated by the
+// triangle program and output a simple Wavefront .obj
+// file for the north, south, east, and west edge
+// verticies ... including the normals.
+//
+// Written by Curtis Olson, started January 1998.
+//
+// Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+// (Log is kept at end of this file)
#include <math.h>
#include <stdio.h>
-#include <stdlib.h> /* for atoi() */
+#include <stdlib.h> // for atoi()
#include <string.h>
-#include <sys/stat.h> /* for stat() */
-#include <unistd.h> /* for stat() */
+#include <sys/stat.h> // for stat()
+#include <unistd.h> // for stat()
#include "splittris.hxx"
static double nodes_orig[MAX_NODES][3];
static int tris[MAX_TRIS][3];
-/* static int new_tris[MAX_TRIS][3]; */
+// static int new_tris[MAX_TRIS][3];
static fgPoint3d nodes_cart[MAX_NODES];
fgBUCKET ne_index, nw_index, sw_index, se_index;
fgBUCKET north_index, south_index, east_index, west_index;
-/* convert a geodetic point lon(arcsec), lat(arcsec), elev(meter) to
- * a cartesian point */
+// convert a geodetic point lon(arcsec), lat(arcsec), elev(meter) to a
+// cartesian point
fgPoint3d geod_to_cart(double geod[3]) {
fgPoint3d cp;
fgPoint3d pp;
double gc_lon, gc_lat, sl_radius;
- /* printf("A geodetic point is (%.2f, %.2f, %.2f)\n",
- geod[0], geod[1], geod[2]); */
+ // printf("A geodetic point is (%.2f, %.2f, %.2f)\n",
+ // geod[0], geod[1], geod[2]);
gc_lon = geod[0]*ARCSEC_TO_RAD;
fgGeodToGeoc(geod[1]*ARCSEC_TO_RAD, geod[2], &sl_radius, &gc_lat);
- /* printf("A geocentric point is (%.2f, %.2f, %.2f)\n", gc_lon,
- gc_lat, sl_radius+geod[2]); */
+ // printf("A geocentric point is (%.2f, %.2f, %.2f)\n", gc_lon,
+ // gc_lat, sl_radius+geod[2]);
pp.lon = gc_lon;
pp.lat = gc_lat;
pp.radius = sl_radius + geod[2];
cp = fgPolarToCart3d(pp);
- /* printf("A cart point is (%.8f, %.8f, %.8f)\n", cp.x, cp.y, cp.z); */
+ // printf("A cart point is (%.8f, %.8f, %.8f)\n", cp.x, cp.y, cp.z);
return(cp);
}
-/* given three points defining a triangle, calculate the normal */
+// given three points defining a triangle, calculate the normal
void calc_normal(fgPoint3d p1, fgPoint3d p2,
fgPoint3d p3, double normal[3])
{
MAT3cross_product(normal, v1, v2);
MAT3_NORMALIZE_VEC(normal,temp);
-/* printf(" Normal = %.2f %.2f %.2f\n", normal[0], normal[1], normal[2]); */
+ // printf(" Normal = %.2f %.2f %.2f\n", normal[0], normal[1], normal[2]);
}
-/* return the file base name ( foo/bar/file.ext = file.ext ) */
+// return the file base name ( foo/bar/file.ext = file.ext )
void extract_file(char *in, char *base) {
int len, i;
}
-/* return the file path name ( foo/bar/file.ext = foo/bar ) */
+// return the file path name ( foo/bar/file.ext = foo/bar )
void extract_path(char *in, char *base) {
int len, i;
}
-/* return the index of all triangles containing the specified node */
+// return the index of all triangles containing the specified node
void find_tris(int n, int *t1, int *t2, int *t3, int *t4, int *t5) {
int i;
}
-/* Initialize a new mesh structure */
+// Initialize a new mesh structure
void triload(char *basename) {
char nodename[256], elename[256];
FILE *node, *ele;
for ( i = 1; i <= nodecount; i++ ) {
fscanf(node, "%d %lf %lf %lf %d\n", &junk1,
&nodes_orig[i][0], &nodes_orig[i][1], &nodes_orig[i][2], &junk2);
- /* printf("%d %.2f %.2f %.2f\n", junk1, n[0], n[1], n[2]); */
+ // printf("%d %.2f %.2f %.2f\n", junk1, n[0], n[1], n[2]);
nodes_cart[i] = geod_to_cart(nodes_orig[i]);
- /* printf("%d %.2f %.2f %.2f\n",
- junk1, nodes_cart[i].x, nodes_cart[i].y, nodes_cart[i].z); */
+ // printf("%d %.2f %.2f %.2f\n",
+ // junk1, nodes_cart[i].x, nodes_cart[i].y, nodes_cart[i].z);
if ( i == 1 ) {
xmin = xmax = nodes_orig[i][0];
for ( i = 1; i <= tricount; i++ ) {
fscanf(ele, "%d %d %d %d\n", &junk1,
&tris[i][0], &tris[i][1], &tris[i][2]);
- /* printf("%d %d %d %d\n", junk1, tris[i][0], tris[i][1], tris[i][2]);*/
+ // printf("%d %d %d %d\n", junk1, tris[i][0], tris[i][1], tris[i][2]);
}
fclose(ele);
}
-/* check if a file exists */
+// check if a file exists
int file_exists(char *file) {
struct stat stat_buf;
int result;
result = stat(file, &stat_buf);
if ( result != 0 ) {
- /* stat failed, no file */
+ // stat failed, no file
printf("not found.\n");
return(0);
} else {
- /* stat succeeded, file exists */
+ // stat succeeded, file exists
printf("exists.\n");
return(1);
}
}
-/* check to see if a shared object exists */
+// check to see if a shared object exists
int shared_object_exists(char *basepath, char *ext) {
char file[256], scene_path[256];
long int index;
}
-/* my custom file opening routine ... don't open if a shared edge or
- * vertex alread exists */
+// my custom file opening routine ... don't open if a shared edge or
+// vertex alread exists
FILE *my_open(char *basename, char *basepath, char *ext) {
FILE *fp;
char filename[256];
- /* create the output file name */
+ // create the output file name
strcpy(filename, basename);
strcat(filename, ext);
- /* check if a shared object already exist from a different tile */
+ // check if a shared object already exist from a different tile
if ( shared_object_exists(basepath, ext) ) {
- /* not an actual file open error, but we've already got the
- * shared edge, so we don't want to create another one */
+ // not an actual file open error, but we've already got the
+ // shared edge, so we don't want to create another one
printf("not opening\n");
return(NULL);
} else {
- /* open the file */
+ // open the file
fp = fopen(filename, "w");
printf("Opening %s\n", filename);
return(fp);
}
-/* dump in WaveFront .obj format */
+// dump in WaveFront .obj format
void dump_obj(char *basename, char *basepath) {
double n1[3], n2[3], n3[3], n4[3], n5[3], norm[3], temp;
FILE *fp, *sw, *se, *ne, *nw, *north, *south, *east, *west, *body;
printf("Dumping edges file basename: %s ...\n", basename);
- /* dump vertices */
+ // dump vertices
printf(" writing vertices\n");
for ( i = 1; i <= nodecount; i++ ) {
}
printf(" calculating and writing normals\n");
- /* calculate and generate normals */
+ // calculate and generate normals
for ( i = 1; i <= nodecount; i++ ) {
-/* printf("Finding normal\n"); */
+ // printf("Finding normal\n");
find_tris(i, &t1, &t2, &t3, &t4, &t5);
count = 5;
}
-/* printf(" norm[2] = %.2f %.2f %.2f\n", n1[2], n2[2], n3[2]); */
+ // printf(" norm[2] = %.2f %.2f %.2f\n", n1[2], n2[2], n3[2]);
norm[0] = ( n1[0] + n2[0] + n3[0] + n4[0] + n5[0] ) / (double)count;
norm[1] = ( n1[1] + n2[1] + n3[1] + n4[1] + n5[1] ) / (double)count;
norm[2] = ( n1[2] + n2[2] + n3[2] + n4[2] + n5[2] ) / (double)count;
-/* printf(" count = %d\n", count); */
-/* printf(" Ave. normal = %.4f %.4f %.4f\n", norm[0], norm[1], norm[2]);*/
+ // printf(" count = %d\n", count);
+ // printf(" Ave. normal = %.4f %.4f %.4f\n", norm[0], norm[1],
+ // norm[2]);
MAT3_NORMALIZE_VEC(norm, temp);
-/* printf(" Normalized ave. normal = %.4f %.4f %.4f\n", */
-/* norm[0], norm[1], norm[2]); */
+ // printf(" Normalized ave. normal = %.4f %.4f %.4f\n",
+ // norm[0], norm[1], norm[2]);
fp = NULL;
strcpy(basename, argv[1]);
- /* find the base path of the file */
+ // find the base path of the file
extract_path(basename, basepath);
extract_path(basepath, basepath);
extract_path(basepath, basepath);
printf("%s\n", basepath);
- /* find the index of the current file */
+ // find the index of the current file
extract_file(basename, temp);
len = strlen(temp);
if ( len >= 2 ) {
fgBucketParseIndex(index, &p);
printf("bucket = %d %d %d %d\n", p.lon, p.lat, p.x, p.y);
- /* generate the indexes of the neighbors */
+ // generate the indexes of the neighbors
fgBucketOffset(&p, &ne_index, 1, 1);
fgBucketOffset(&p, &nw_index, -1, 1);
fgBucketOffset(&p, &se_index, 1, -1);
fgBucketOffset(&p, &east_index, 1, 0);
fgBucketOffset(&p, &west_index, -1, 0);
- /*
- printf("Corner indexes = %ld %ld %ld %ld\n",
- ne_index, nw_index, sw_index, se_index);
- printf("Edge indexes = %ld %ld %ld %ld\n",
- north_index, south_index, east_index, west_index);
- */
+ // printf("Corner indexes = %ld %ld %ld %ld\n",
+ // ne_index, nw_index, sw_index, se_index);
+ // printf("Edge indexes = %ld %ld %ld %ld\n",
+ // north_index, south_index, east_index, west_index);
+
- /* load the input data files */
+ // load the input data files
triload(basename);
- /* dump in WaveFront .obj format */
+ // dump in WaveFront .obj format
dump_obj(basename, basepath);
return(0);
}
-/* $Log$
-/* Revision 1.1 1998/07/08 14:59:13 curt
-/* *.[ch] renamed to *.[ch]xx
-/*
- * Revision 1.11 1998/07/04 00:56:40 curt
- * typedef'd struct fgBUCKET.
- *
- * Revision 1.10 1998/05/02 01:54:37 curt
- * Converting to polar3d.h routines.
- *
- * Revision 1.9 1998/04/18 04:01:20 curt
- * Now use libMath rather than having local copies of math routines.
- *
- * Revision 1.8 1998/04/14 02:26:08 curt
- * Code reorganizations. Added a Lib/ directory for more general libraries.
- *
- * Revision 1.7 1998/04/08 23:21:13 curt
- * Adopted Gnu automake/autoconf system.
- *
- * Revision 1.6 1998/03/03 15:36:13 curt
- * Tweaks for compiling with g++
- *
- * Revision 1.5 1998/03/03 03:37:04 curt
- * Cumulative tweaks.
- *
- * Revision 1.4 1998/01/31 00:41:26 curt
- * Made a few changes converting floats to doubles.
- *
- * Revision 1.3 1998/01/27 18:37:04 curt
- * Lots of updates to get back in sync with changes made over in .../Src/
- *
- * Revision 1.2 1998/01/14 15:54:43 curt
- * Initial revision completed.
- *
- * Revision 1.1 1998/01/14 02:11:31 curt
- * Initial revision.
- *
- */
+// $Log$
+// Revision 1.2 1998/09/21 23:16:23 curt
+// Converted to c++ style comments.
+//
+// Revision 1.1 1998/07/08 14:59:13 curt
+// *.[ch] renamed to *.[ch]xx
+//
+// Revision 1.11 1998/07/04 00:56:40 curt
+// typedef'd struct fgBUCKET.
+//
+// Revision 1.10 1998/05/02 01:54:37 curt
+// Converting to polar3d.h routines.
+//
+// Revision 1.9 1998/04/18 04:01:20 curt
+// Now use libMath rather than having local copies of math routines.
+//
+// Revision 1.8 1998/04/14 02:26:08 curt
+// Code reorganizations. Added a Lib/ directory for more general libraries.
+//
+// Revision 1.7 1998/04/08 23:21:13 curt
+// Adopted Gnu automake/autoconf system.
+//
+// Revision 1.6 1998/03/03 15:36:13 curt
+// Tweaks for compiling with g++
+//
+// Revision 1.5 1998/03/03 03:37:04 curt
+// Cumulative tweaks.
+//
+// Revision 1.4 1998/01/31 00:41:26 curt
+// Made a few changes converting floats to doubles.
+//
+// Revision 1.3 1998/01/27 18:37:04 curt
+// Lots of updates to get back in sync with changes made over in .../Src/
+//
+// Revision 1.2 1998/01/14 15:54:43 curt
+// Initial revision completed.
+//
+// Revision 1.1 1998/01/14 02:11:31 curt
+// Initial revision.
+//
+
projects / flightgear.git / commitdiff