84 lines
3.4 KiB
C
84 lines
3.4 KiB
C
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/****************************************************************************
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* VCGLib o o *
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* Visual and Computer Graphics Library o o *
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* _ O _ *
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* Copyright(C) 2004 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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bool Save_STL(const char * filename , bool binary =true, const char *objectname=0)
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{
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FILE *fp;
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fp = fopen(filename,"wb");
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if(fp==0)
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return false;
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if(binary)
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{
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// Write Header
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char *header="VCG ";
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if(objectname) strncpy(header,objectname,80);
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fwrite(header,80,1,fp);
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// write number of facets
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fwrite(&fn,1,sizeof(int),fp);
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face_iterator fi;
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Point3f p;
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unsigned short attributes=0;
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for(fi=face.begin(); fi!=face.end(); ++fi) if( !(*fi).IsD() )
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{
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// For each triangle write the normal, the three coords and a short set to zero
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p.Import(vcg::NormalizedNormal((*fi).V(0)->P(), (*fi).V(1)->P(), (*fi).V(2)->P()));
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fwrite(p.V(),3,sizeof(float),fp);
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for(int k=0;k<3;++k){
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p.Import((*fi).V(k)->P());
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fwrite(p.V(),3,sizeof(float),fp);
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}
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fwrite(&attributes,1,sizeof(short),fp);
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}
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}
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else
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{
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if(objectname) fprintf(fp,"solid %s\n",objectname);
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else fprintf(fp,"solid vcg\n");
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Point3f p;
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face_iterator fi;
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for(fi=face.begin(); fi!=face.end(); ++fi) if( !(*fi).IsD() )
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{
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// For each triangle write the normal, the three coords and a short set to zero
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p.Import(vcg::NormalizedNormal((*fi).V(0)->P(), (*fi).V(1)->P(), (*fi).V(2)->P()));
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fprintf(fp," facet normal %13e %13e %13e\n",p[0],p[1],p[2]);
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fprintf(fp," outer loop\n");
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for(int k=0;k<3;++k){
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p.Import((*fi).V(k)->P());
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fprintf(fp," vertex %13e %13e %13e\n",p[0],p[1],p[2]);
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}
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fprintf(fp," endloop\n");
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fprintf(fp," endfacet\n");
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}
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fprintf(fp,"endsolid vcg\n");
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}
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fclose(fp);
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return true;
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}
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//@}
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