/**************************************************************************** * VCGLib o o * * Visual and Computer Graphics Library o o * * _ O _ * * Copyright(C) 2004-2016 \/)\/ * * Visual Computing Lab /\/| * * ISTI - Italian National Research Council | * * \ * * All rights reserved. * * * * 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 (http://www.gnu.org/licenses/gpl.txt) * * for more details. * * * ****************************************************************************/ /**************************************************************************** History $Log: not supported by cvs2svn $ ****************************************************************************/ #ifndef __VCGLIB_EXPORT_DXF #define __VCGLIB_EXPORT_DXF namespace vcg { namespace tri { namespace io { template /** This class encapsulate a filter for save dxf meshes. */ class ExporterDXF { typedef typename SaveMeshType::CoordType CoordType; public: ///Standard call for saving a mesh static int Save(SaveMeshType &m, const char * filename) { if(m.fn==0 && m.en != 0) return SaveEdge(m,filename); FILE * o = fopen(filename,"w"); if(o==NULL) return 1; writeHeader(o, m); fprintf(o,"0\n"); fprintf(o,"SECTION\n"); fprintf(o,"2\n"); fprintf(o,"ENTITIES\n"); typename SaveMeshType::FaceIterator fi; for(fi=m.face.begin(); fi!=m.face.end(); ++fi) { if (!fi->IsD()) { typename SaveMeshType::CoordType v0 = (*fi).V(0)->P(); typename SaveMeshType::CoordType v1 = (*fi).V(1)->P(); typename SaveMeshType::CoordType v2 = (*fi).V(2)->P(); fprintf(o,"0\n"); fprintf(o,"3DFACE\n"); fprintf(o,"8\n"); fprintf(o,"0\n"); fprintf(o,"10\n"); fprintf(o,"%f\n", v0[0]); //X fprintf(o,"20\n"); fprintf(o,"%f\n", v0[1]); //Y fprintf(o,"30\n"); fprintf(o,"%f\n", v0[2]); //Z fprintf(o,"11\n"); fprintf(o,"%f\n", v1[0]); //X fprintf(o,"21\n"); fprintf(o,"%f\n", v1[1]); //Y fprintf(o,"31\n"); fprintf(o,"%f\n", v1[2]); //Z fprintf(o,"12\n"); fprintf(o,"%f\n", v2[0]); //X fprintf(o,"22\n"); fprintf(o,"%f\n", v2[1]); //Y fprintf(o,"32\n"); fprintf(o,"%f\n", v2[2]); //Z fprintf(o,"13\n"); fprintf(o,"%f\n", v2[0]); //X fprintf(o,"23\n"); fprintf(o,"%f\n", v2[1]); //Y fprintf(o,"33\n"); fprintf(o,"%f\n", v2[2]); //Z } } fprintf(o,"0\n"); fprintf(o,"ENDSEC\n"); fprintf(o,"0\n"); fprintf(o,"EOF\n"); fclose(o); return 0; } /// Standard call for knowing the meaning of an error code static const char *ErrorMsg(int error) { static std::vector dxf_error_msg; if(dxf_error_msg.empty()) { dxf_error_msg.resize(2 ); dxf_error_msg[0]="No errors"; dxf_error_msg[1]="Can't open file"; } if(error>1 || error<0) return "Unknown error"; else return dxf_error_msg[error].c_str(); } static bool SaveEdge(SaveMeshType &m, const char * filename) { FILE * o = fopen(filename,"w"); if(o==NULL) return 1; writeHeader(o, m); fprintf(o,"0\n"); fprintf(o,"SECTION\n"); fprintf(o,"2\n"); fprintf(o,"ENTITIES\n"); typename SaveMeshType::EdgeIterator ei; for(ei=m.edge.begin(); ei!=m.edge.end();++ei) { CoordType p1 = (*ei).V(0)->P(); CoordType p2 = (*ei).V(1)->P(); fprintf(o,"0\n"); fprintf(o,"LINE\n"); fprintf(o,"8\n"); fprintf(o,"0\n"); fprintf(o,"10\n"); fprintf(o,"%f\n", p1[0]); //X fprintf(o,"20\n"); fprintf(o,"%f\n", p1[1]); //Y fprintf(o,"30\n"); fprintf(o,"%f\n", p1[2]); //Z fprintf(o,"11\n"); fprintf(o,"%f\n", p2[0]); //X fprintf(o,"21\n"); fprintf(o,"%f\n", p2[1]); //Y fprintf(o,"31\n"); fprintf(o,"%f\n", p2[2]); //Z } fprintf(o,"0\n"); fprintf(o,"ENDSEC\n"); fprintf(o,"0\n"); fprintf(o,"EOF\n"); fclose(o); return true; } static bool writeHeader(FILE* o, SaveMeshType &mp) { // standard DXF header // most of data is meaningless, but required by a lot of importers fprintf(o, "999\n"); fprintf(o, "DXF created by VCGLib\n"); fprintf(o, "0\n"); fprintf(o, "SECTION\n"); fprintf(o, "2\n"); fprintf(o, "HEADER\n"); // Version of the dxf specs, most reader need version 12 or above (AC1009) fprintf(o, "9\n"); fprintf(o, "$ACADVER\n"); fprintf(o, "1\n"); fprintf(o, "AC1009\n"); // Insertion base set by BASE command (in WCS) fprintf(o, "9\n"); fprintf(o, "$INSBASE\n"); fprintf(o, "10\n"); fprintf(o, "0.0\n"); fprintf(o, "20\n"); fprintf(o, "0.0\n"); fprintf(o, "30\n"); fprintf(o, "0.0\n"); // extents for draw space and line drawing... // I will just use the data from the boundingbox (largest bbox value in all directions) double emin = std::min(mp.bbox.min[0], std::min(mp.bbox.min[1], mp.bbox.min[2])); double emax = std::max(mp.bbox.max[0], std::max(mp.bbox.max[1], mp.bbox.max[2])); fprintf(o, "9\n"); fprintf(o, "$EXTMIN\n"); fprintf(o, "10\n"); fprintf(o, "%f\n",emin); fprintf(o, "20\n"); fprintf(o, "%f\n",emin); fprintf(o, "9\n"); fprintf(o, "$EXTMAX\n"); fprintf(o, "10\n"); fprintf(o, "%f\n", emax); fprintf(o, "20\n"); fprintf(o, "%f\n", emax); fprintf(o, "9\n"); fprintf(o, "$LINMIN\n"); fprintf(o, "10\n"); fprintf(o, "%f\n", emin); fprintf(o, "20\n"); fprintf(o, "%f\n", emin); fprintf(o, "9\n"); fprintf(o, "$LINMAX\n"); fprintf(o, "10\n"); fprintf(o, "%f\n", emax); fprintf(o, "20\n"); fprintf(o, "%f\n", emax); fprintf(o, "0\n"); fprintf(o, "ENDSEC\n"); return true; } }; // end class } // end Namespace io } // end Namespace tri } // end Namespace vcg #endif