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Initial revision.

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curt 1997-10-29 23:05:14 +00:00
parent e5cd4c5b9d
commit af4e04b9df
4 changed files with 277 additions and 0 deletions

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#---------------------------------------------------------------------------
# Makefile
#
# Written by Curtis Olson, started October 1997.
#
# 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)
#---------------------------------------------------------------------------
TARGET = tri2obj
CFILES = tri2obj.c
OFILES = $(CFILES:.c=.o)
include ../make.inc
CFLAGS = $(FG_CFLAGS) -g
#---------------------------------------------------------------------------
# Primary Targets
#---------------------------------------------------------------------------
all: $(TARGET)
$(TARGET): $(OFILES)
$(CC) $(OFILES) -o $(TARGET)
clean:
rm -f *.o $(TARGET) lib*.a *.os2 *~ core
realclean: clean
#---------------------------------------------------------------------------
# Secondary Targets
#---------------------------------------------------------------------------
makedepend:
$(CC) -MM *.c > depend
include depend
tri2obj.o: tri2obj.c
$(CC) $(CFLAGS) -c tri2obj.c -o $@
#---------------------------------------------------------------------------
# $Log$
# Revision 1.1 1997/10/29 23:05:14 curt
# Initial revision.
#
# Revision 1.1 1997/10/23 23:12:09 curt
# Initial revision.
#

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triload.o: triload.c triload.h

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Tri2obj/tri2obj.c Normal file
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/* tri2obj.c -- read in a .ele/.node file pair generated by the triangle
* program and output a simple Wavefront .obj file.
*
* Written by Curtis Olson, started October 1997.
*
* 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 <stdio.h>
#include <string.h>
#include "tri2obj.h"
int nodecount, tricount;
double nodes[MAX_NODES][3];
int tris[MAX_TRIS][3];
int new_tris[MAX_TRIS][3];
/* Initialize a new mesh structure */
void triload(char *basename) {
char nodename[256], elename[256];
FILE *node, *ele;
int dim, junk1, junk2;
int i;
strcpy(nodename, basename);
strcat(nodename, ".node");
strcpy(elename, basename);
strcat(elename, ".ele");
printf("Loading node file: %s ...\n", nodename);
if ( (node = fopen(nodename, "r")) == NULL ) {
printf("Cannot open file '%s'\n", nodename);
exit(-1);
}
fscanf(node, "%d %d %d %d", &nodecount, &dim, &junk1, &junk2);
if ( nodecount > MAX_NODES - 1 ) {
printf("Error, too many nodes, need to increase array size\n");
exit(-1);
} else {
printf(" Expecting %d nodes\n", nodecount);
}
for ( i = 1; i <= nodecount; i++ ) {
fscanf(node, "%d %lf %lf %lf %d\n", &junk1,
&nodes[i][0], &nodes[i][1], &nodes[i][2], &junk2);
/* printf("%d %.2f %.2f %.2f\n",
junk1, nodes[i][0], nodes[i][1], nodes[i][2]); */
}
fclose(node);
printf("Loading element file: %s ...\n", elename);
if ( (ele = fopen(elename, "r")) == NULL ) {
printf("Cannot open file '%s'\n", elename);
exit(-1);
}
fscanf(ele, "%d %d %d", &tricount, &junk1, &junk2);
if ( tricount > MAX_TRIS - 1 ) {
printf("Error, too many elements, need to increase array size\n");
exit(-1);
} else {
printf(" Expecting %d elements\n", tricount);
}
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]);*/
}
fclose(ele);
}
/* dump in WaveFront .obj format */
void dump_obj(char *basename) {
char objname[256];
FILE *obj;
int i;
strcpy(objname, basename);
strcat(objname, ".obj");
printf("Dumping to file: %s ...\n", objname);
obj = fopen(objname, "w");
/* dump vertices */
for ( i = 1; i <= nodecount; i++ ) {
fprintf(obj, "v %.2f %.2f %.2f\n",
nodes[i][0], nodes[i][1], nodes[i][2]);
}
/* dump faces */
for ( i = 1; i <= tricount; i++ ) {
fprintf(obj, "f %d %d %d\n", tris[i][0], tris[i][1], tris[i][2]);
}
fclose(obj);
}
int main(int argc, char **argv) {
char basename[256];
strcpy(basename, argv[1]);
/* load the input data files */
triload(basename);
/* dump in WaveFront .obj format */
dump_obj(basename);
return(0);
}
/* $Log$
/* Revision 1.1 1997/10/29 23:05:15 curt
/* Initial revision.
/*
*/

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/* tri2obj.h -- read in a .ele/.node file pair generated by the triangle
* program and output a Wavefront .obj file.
*
* Written by Curtis Olson, started October 1997.
*
* 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)
*/
#ifndef TRI2OBJ_H
#define TRI2OBJ_H
#include <stdio.h>
#include <string.h>
#define MAX_NODES 100000
#define MAX_TRIS 200000
extern int nodecount, tricount;
extern double nodes[MAX_NODES][3];
extern int tris[MAX_TRIS][3];
extern int new_tris[MAX_TRIS][3];
/* Initialize a new mesh structure */
void triload(char *basename);
#endif /* TRI2OBJ_H */
/* $Log$
/* Revision 1.1 1997/10/29 23:05:15 curt
/* Initial revision.
/*
*/