From 0a02181aa0eb366bef8da7a541a323e54727af0d Mon Sep 17 00:00:00 2001
From: ganovelli <fabio.ganovelli@isti.cnr.it>
Date: Thu, 27 May 2004 13:24:08 +0000
Subject: [PATCH] export_dxf created

---
 wrap/io_edgemesh/export_dxf.h | 108 ++++++++++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 wrap/io_edgemesh/export_dxf.h

diff --git a/wrap/io_edgemesh/export_dxf.h b/wrap/io_edgemesh/export_dxf.h
new file mode 100644
index 00000000..f7e45f49
--- /dev/null
+++ b/wrap/io_edgemesh/export_dxf.h
@@ -0,0 +1,108 @@
+/****************************************************************************
+* VCGLib                                                            o o     *
+* Visual and Computer Graphics Library                            o     o   *
+*                                                                _   O  _   *
+* Copyright(C) 2004                                                \/)\/    *
+* 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 __VCG_LIB_EXPORTER_DXF
+#define __VCG_LIB_EXPORTER_DXF
+
+#include <stdio.h>
+/** 
+This class encapsulate a filter for saving edge meshes ad polyline in DXF format.
+*/
+namespace vcg {
+namespace edge {
+namespace io {
+
+
+
+	template <class EdgeMeshType>
+class ExporterDXF{
+public:
+	typedef typename EdgeMeshType::VertexPointer VertexPointer;
+
+	static bool Save( EdgeMeshType  &em, const char * filename){
+		FILE * o = fopen(filename,"w");
+		if(o==NULL)
+			return false;
+
+		// print header
+		fprintf(o,"999\nVCGLibraryDXF\n0\nSECTION\n2\nENTITIES\n");
+
+		vcg::edge::Pos<typename EdgeMeshType::EdgeType> et;
+		typename typename EdgeMeshType::EdgePointer ep = &*em.edges.begin(),start;
+		typename typename EdgeMeshType::EdgeIterator ei;
+
+		int i=0,maxc=0,n_=0;
+	 
+		for(ei = em.edges.begin(); ei != em.edges.end();++ei){(*ei).ClearS();}
+
+		for(ei = em.edges.begin(); ei != em.edges.end();++ei)
+			{i=1;
+				
+				start = &*ei;
+				et.Set(&*ei,(*ei).V(0));
+				if(!et.e->IsS())
+					{// nuovo contorno: trova il bordo se c'e' e posiziona li' l'hal edge
+					n_++;
+					do{
+						ep = et.e;
+						if(et.e->EEp(et.Z()) == et.e)
+							break;
+						et.NextE();
+						}while (et.e != start);
+					fprintf(o,"0\nPOLYLINE\n10\n0\n70\n0\n");
+					start = et.e;
+					i=0;
+										do{
+							if(i++>maxc)
+								maxc=i;
+								et.e->SetS();
+								ep = et.e;
+								OutVertex(et.e->V(et.Z()), o);
+								et.NextE();
+						}while((et.e != ep)&&(et.e !=start)&&(i<em.en));
+					}
+			}	
+				
+		fprintf(o,"0\nENDSEC\n0\nEOF\n");
+		fclose(o);
+		return 0;
+		}
+
+private:
+	static void OutVertex(const VertexPointer & v, FILE* o){
+					fprintf(o,"0\nVERTEX\n100\nAcDb3dPolylineVertex\n70\n32\n");
+					int i;
+					for(i = 0 ; i < 3; ++i)
+					fprintf(o,"%d\n%f\n",(i+1)*10,v->P()[i]);
+		}
+	};
+
+	};//vcg
+	};//edge
+	};//io
+
+#endif
\ No newline at end of file