134 lines
4.3 KiB
C++
134 lines
4.3 KiB
C++
/****************************************************************************
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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) 2004-2016 \/)\/ *
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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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/****************************************************************************
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History
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$Log: not supported by cvs2svn $
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****************************************************************************/
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#ifndef __VCGLIB_IMPORTER_SMF
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#define __VCGLIB_IMPORTER_SMF
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#include <stdio.h>
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#include <vcg/space/point3.h>
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namespace vcg {
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namespace tri {
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namespace io {
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template<class OpenMeshType>
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/**
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This class encapsulate a filter for opening smf meshes.
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*/
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class ImporterSMF
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{
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public:
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typedef typename OpenMeshType::VertexPointer VertexPointer;
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typedef typename OpenMeshType::ScalarType ScalarType;
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typedef typename OpenMeshType::VertexType VertexType;
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typedef typename OpenMeshType::FaceType FaceType;
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typedef typename OpenMeshType::VertexIterator VertexIterator;
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typedef typename OpenMeshType::FaceIterator FaceIterator;
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// if it is binary there are 80 char of comment, the number fn of faces and then exactly fn*4*3 bytes.
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enum {SMF_LABEL_SIZE=80};
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class SMFFacet
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{
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public:
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vcg::Point3f n;
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vcg::Point3f v[3];
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};
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enum SMFError {
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E_NOERROR, // 0
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// Errori di open
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E_CANTOPEN, // 1
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E_UNESPECTEDEOF // 2
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};
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/// Standard call for knowing the meaning of an error code
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static const char *ErrorMsg(int error)
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{
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static const char * smf_error_msg[] =
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{
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"No errors",
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"Can't open file",
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"Premature End of file",
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};
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if(error>2 || error<0) return "Unknown error";
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else return smf_error_msg[error];
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};
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///Standard call for reading a mesh
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static int Open(OpenMeshType &m, const char * filename )
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{
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VertexType v;
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FaceType f;
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FILE *fp;
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float x,y,z;
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bool one = true;
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std::map<int,VertexPointer> mv;
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fp = fopen(filename,"r");
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if(!fp) return -1;
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char buf[1024];
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while( fgets(buf,1024,fp) )
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{
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char *vf, *comm_pt;
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if((comm_pt = strstr(buf,"#")) != NULL)
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*comm_pt = '\0';
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if( (vf = strstr(buf,"v")) != NULL )
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{
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sscanf(vf+1,"%f %f %f", &x, &y, &z);
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v.P()[0] = x;
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v.P()[1] = y;
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v.P()[2] = z;
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m.vert.push_back(v);
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}
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else if( (vf = strstr(buf,"f")) != NULL)
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{
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if(one)
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{
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VertexIterator vi;
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int ind;
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for(ind=1,vi=m.vert.begin(); vi!=m.vert.end(); ++vi,++ind)
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mv[ind]=&*vi;
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one = false;
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}
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int v1,v2,v3;
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sscanf(vf+1,"%d %d %d", &v1, &v2, &v3);
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f.V(0) = mv[v1];
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f.V(1) = mv[v2];
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f.V(2) = mv[v3];
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m.face.push_back(f);
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}
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}
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m.vn = m.vert.size();
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m.fn = m.face.size();
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return 0;
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}
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};
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}// end of io
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}// end of tri
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}// end of vcg
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#endif
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