774 lines
24 KiB
C++
774 lines
24 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 \/)\/ *
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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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Revision 1.6 2006/11/28 11:36:25 cignoni
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Removed nonstandard include io.h
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Revision 1.5 2006/11/21 22:34:58 cignoni
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small gcc compiling issues
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Revision 1.4 2006/11/21 19:23:50 e_cerisoli
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Added comments for documentation
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****************************************************************************/
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#ifndef __VCGLIB_IMPORT_PTX
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#define __VCGLIB_IMPORT_PTX
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#include <stdio.h>
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#include <wrap/callback.h>
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#include <vcg/complex/trimesh/allocate.h>
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#include <vcg/complex/trimesh/clean.h>
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#include <vcg/complex/trimesh/update/normal.h>
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#include <vcg/complex/trimesh/update/bounding.h>
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namespace vcg {
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namespace tri {
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namespace io {
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/**
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This class encapsulate a filter for importing ptx meshes.
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*/
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template <class OpenMeshType>
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class ImporterPTX
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{
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public:
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enum PTX_OPEN_MASK_ENUM
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{
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PTX_ONLY_POINTS = 0x08000000, //BIT_27 no add faces (PTX_FLIPFACES and PTX_SWITCHSIDE are ignored!)
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PTX_COLOR = 0x10000000, //BIT_28 must be VertexType::HasColor();
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PTX_COMPUTE_AABBOX = 0x20000000, //BIT_29 compute axis aligned bbox
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PTX_FLIPFACES = 0x40000000, //BIT_30 flip all faces ( PTX_ONLY_POINTS must be false )
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PTX_SWITCHSIDE = 0x80000000 //BIT_31 inverse triangulation order (swaping row->cols) ( PTX_ONLY_POINTS must be false )
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};
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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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struct RANGEMAP_INFO
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{
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fpos_t pos;
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int vn;
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int fn;
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};
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typedef typename std::vector< RANGEMAP_INFO > RANGEMAP_INFO_TABLE;
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struct PTX_HEAD_INFO
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{
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int vn;
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int fn;
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RANGEMAP_INFO_TABLE rmapInfo;
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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 * ptx_error_msg[] =
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{
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"No errors",
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"Can't open file",
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"Header not found",
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"Eof in header",
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"Format not found",
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"Syntax error on header",
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};
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if(error>6 || error<0) return "Unknown error";
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else return ptx_error_msg[error];
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};
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static bool skipmesh(FILE* fp, CallBackPos *cb=NULL)
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{
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PTX_HEAD_INFO tab;
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return skipmesh(fp, cb);
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}
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static bool skipmesh(FILE* fp, PTX_HEAD_INFO & tab, CallBackPos *cb=NULL)
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{
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int colnum;
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int rownum;
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int skiplines;
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char linebuf;
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if(feof(fp)) return false;
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RANGEMAP_INFO ptxInfo;
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fgetpos(fp, &ptxInfo.pos );
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// getting mesh size;
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fscanf(fp,"%i\n",&colnum);
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fscanf(fp,"%i\n",&rownum);
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ptxInfo.vn = rownum*colnum;
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ptxInfo.fn = (rownum-1) * (colnum-1) * 2;
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char tmp[255];
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sprintf(tmp, "PTX Mesh analysis... mesh %i vert %i face %i", (int)tab.rmapInfo.size(), ptxInfo.vn, ptxInfo.fn);
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if ( ( colnum <=0 ) || ( rownum <=0 ) ) return false;
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if(feof(fp)) return false;
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if(cb) cb( rand()%100, tmp);
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skiplines = (colnum * rownum) + 8; // have to skip (col * row) lines plus 8 lines for the header
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for(int ii=0; ii<skiplines; ii++)
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{
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fread(&linebuf,1,1,fp);
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while(linebuf != '\n') fread(&linebuf,1,1,fp);
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}
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if(cb) cb( 100, tmp);
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tab.vn += ptxInfo.vn;
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tab.fn += ptxInfo.fn;
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tab.rmapInfo.push_back( ptxInfo );
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return true;
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}
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static bool Analysis(const char * filename, PTX_HEAD_INFO &info, CallBackPos *cb=NULL)
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{
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info.fn = 0;
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info.vn = 0;
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info.rmapInfo.clear();
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FILE *fp;
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fp = fopen(filename, "rb");
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if(fp == NULL) return false;
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while ( skipmesh( fp, info, cb ) ) {}
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return true;
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};
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static int Open( OpenMeshType &m, const char * filename, int meshNumber, int mask = PTX_ONLY_POINTS, CallBackPos *cb=NULL)
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{
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FILE *fp;
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fp = fopen(filename, "rb");
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if(fp == NULL) return false;
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m.Clear();
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m.vn=0;
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m.fn=0;
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PTX_HEAD_INFO ptxHead;
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if ( meshNumber>0 ) for (int i=0; i!=meshNumber; ++i) skipmesh(fp, ptxHead, cb);
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if (!readPTX( m, fp, mask, meshNumber, cb))
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{
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m.Clear();
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return 1;
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}
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clearBadVertex(m, mask, cb);
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return 0;
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}
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static void clearBadVertex(OpenMeshType &m, int mask, CallBackPos *cb=NULL)
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{
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if(cb) cb(40,"PTX Mesh Loading - remove bad vertex!");
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for(VertexIterator vi = m.vert.begin(); vi != m.vert.end(); vi++)
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{
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if((*vi).P() == Point3f(0.0, 0.0, 0.0))
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Allocator<OpenMeshType>::DeleteVertex(m,*vi);
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}
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if(cb) cb(60,"PTX Mesh Loading - remove bad face!");
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bool onlypoints = ((mask & PTX_ONLY_POINTS) != 0);
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if(! onlypoints)
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{
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for(typename OpenMeshType::FaceIterator fi = m.face.begin(); fi != m.face.end(); fi++)
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{
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if( ((*fi).V(0)->IsD()) || ((*fi).V(1)->IsD()) || ((*fi).V(2)->IsD()) )
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Allocator<OpenMeshType>::DeleteFace(m,*fi);
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}
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// eliminate high angle triangles
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int angle = 88;
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//printf(" culling by angle \n");
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float limit = cos( angle*3.14159265358979323846/180.0 );
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Point3f raggio;
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if(cb) cb(85,"PTX Mesh Loading - remove bad face!");
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vcg::tri::UpdateNormals<OpenMeshType>::PerFaceNormalized(m);
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for(typename OpenMeshType::FaceIterator fi = m.face.begin(); fi != m.face.end(); fi++)
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if(!(*fi).IsD())
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{
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raggio = -((*fi).V(0)->P() + (*fi).V(1)->P() + (*fi).V(2)->P()) / 3.0;
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raggio.Normalize();
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if((raggio * (*fi).N()) < limit)
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Allocator<OpenMeshType>::DeleteFace(m,*fi);
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}
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}
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/*if(cb) cb(60,"PTX Mesh Loading RemoveDuplicateVertex");
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tri::Clean<OpenMeshType>::RemoveDuplicateVertex(m);
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if (!onlypoints)
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{
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if(cb) cb(60,"PTX Mesh Loading RemoveUnreferencedVertex");
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tri::Clean<OpenMeshType>::RemoveUnreferencedVertex(m);
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}*/
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if(cb) cb(100,"PTX Mesh Loading finish!");
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}
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//if numMesh == -1 load all mesh
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static int Open_( OpenMeshType &m, const char * filename, int mask = PTX_ONLY_POINTS, CallBackPos *cb=NULL)
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{
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FILE *fp;
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fp = fopen(filename, "rb");
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if(fp == NULL) return 1;
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m.Clear();
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m.vn=0;
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m.fn=0;
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int vn=0;
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int fn=0;
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//PTX_HEAD_INFO tab;
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//tab.clear();
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//while ( skipmesh( fp, tab, cb ) ) {}
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/*if ( (vn<=0) && (fn<=0) ) return false;
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//VertexIterator vi = Allocator<OpenMeshType>::AddVertices(m,vn);
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//OpenMeshType::FaceIterator fi= Allocator<OpenMeshType>::AddFaces(m,fn);
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VertexIterator vi = Allocator<OpenMeshType>::AddVertices(m, tab[20].vn);
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FaceIterator fi = Allocator<OpenMeshType>::AddFaces(m, tab[20].fn);
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readPTX( m, fp, vi, fi, tab[20], mask, 20, cb);
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fclose(fp);
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/* return true;
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if ( numMesh>0 )
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for (int i=0; i!=numMesh; ++i) if (!skipmesh(fp, vn, fn, tab)) return false;
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int mn=0;
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if ( numMesh == -1 )
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{
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bool next = true;
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while ( next )
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{
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bool r = readPTX(m, fp, mask, mn, cb);
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mn++;
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if ((r==false) && (m.vn==0) ) { fclose(fp); return false; }
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else if (r==false) next = false;
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}
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} else
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{
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bool r = readPTX(m, fp, mask, numMesh, cb);
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if ((r==false) && (m.vn==0) ) { fclose(fp); return false; }
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}
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fclose(fp);
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*/
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// now i delete all points in (0,0,0) that are unsampled points
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for(VertexIterator vi = m.vert.begin(); vi != m.vert.end(); vi++)
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{
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if((*vi).P() == Point3f(0.0, 0.0, 0.0))
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Allocator<OpenMeshType>::DeleteVertex(m,*vi);
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}
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bool onlypoints = ((mask & PTX_ONLY_POINTS) != 0);
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if(! onlypoints)
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{
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for(typename OpenMeshType::FaceIterator fi = m.face.begin(); fi != m.face.end(); fi++)
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{
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if( ((*fi).V(0)->IsD()) || ((*fi).V(1)->IsD()) || ((*fi).V(2)->IsD()) )
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Allocator<OpenMeshType>::DeleteFace(m,*fi);
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}
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// eliminate high angle triangles
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int angle = 88;
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printf(" culling by angle \n");
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float limit = cos( angle*3.14159265358979323846/180.0 );
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Point3f raggio;
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vcg::tri::UpdateNormals<OpenMeshType>::PerFaceNormalized(m);
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for(typename OpenMeshType::FaceIterator fi = m.face.begin(); fi != m.face.end(); fi++)
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if(!(*fi).IsD())
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{
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raggio = -((*fi).V(0)->P() + (*fi).V(1)->P() + (*fi).V(2)->P()) / 3.0;
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raggio.Normalize();
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if((raggio * (*fi).N()) < limit)
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Allocator<OpenMeshType>::DeleteFace(m,*fi);
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}
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}
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/*if(cb) cb(60,"PTX Mesh Loading RemoveDuplicateVertex");
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tri::Clean<OpenMeshType>::RemoveDuplicateVertex(m);
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if (!onlypoints)
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{
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if(cb) cb(60,"PTX Mesh Loading RemoveUnreferencedVertex");
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tri::Clean<OpenMeshType>::RemoveUnreferencedVertex(m);
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}*/
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if(cb) cb(100,"PTX Mesh Loading finish!");
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return 0;
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}
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static bool readPTX( OpenMeshType &m, FILE *fp, VertexIterator &vi, FaceIterator &fi, const RANGEMAP_INFO &ptxInfo, int mask, int mn, CallBackPos *cb=NULL)
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{
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int colnum;
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int rownum;
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int numtokens;
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char linebuf[256];
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int ii;
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float xx,yy,zz; // position
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float rr,gg,bb; // color
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float rf; // reflectance
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Matrix44f currtrasf;
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bool hascolor;
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bool savecolor = ((mask & PTX_COLOR) != 0) && VertexType::HasColor();
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bool computeBbox = ((mask & PTX_COMPUTE_AABBOX) != 0);
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bool onlypoints = ((mask & PTX_ONLY_POINTS) != 0);
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bool switchside = ((mask & PTX_SWITCHSIDE) != 0);
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bool flipfaces = ((mask & PTX_FLIPFACES) != 0);
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int total = 50;
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if ( onlypoints ) total = 100;
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if (fsetpos(fp, &ptxInfo.pos)!=0) return false;
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// getting mesh size;
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fscanf(fp,"%i\n",&colnum);
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fscanf(fp,"%i\n",&rownum);
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if ( ( colnum <=0 ) || ( rownum <=0 ) ) return false;
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// initial 4 lines [still don't know what is this :) :)]
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if ( !fscanf(fp,"%f %f %f\n", &xx, &yy, &zz) ) return false;
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if ( !fscanf(fp,"%f %f %f\n", &xx, &yy, &zz) ) return false;
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if ( !fscanf(fp,"%f %f %f\n", &xx, &yy, &zz) ) return false;
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if ( !fscanf(fp,"%f %f %f\n", &xx, &yy, &zz) ) return false;
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// now the transformation matrix
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if ( !fscanf(fp,"%f %f %f %f\n", &(currtrasf.ElementAt(0,0)), &(currtrasf.ElementAt(0,1)), &(currtrasf.ElementAt(0,2)), &(currtrasf.ElementAt(0,3))) )return false;
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if ( !fscanf(fp,"%f %f %f %f\n", &(currtrasf.ElementAt(1,0)), &(currtrasf.ElementAt(1,1)), &(currtrasf.ElementAt(1,2)), &(currtrasf.ElementAt(1,3))) )return false;
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if ( !fscanf(fp,"%f %f %f %f\n", &(currtrasf.ElementAt(2,0)), &(currtrasf.ElementAt(2,1)), &(currtrasf.ElementAt(2,2)), &(currtrasf.ElementAt(2,3))) )return false;
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if ( !fscanf(fp,"%f %f %f %f\n", &(currtrasf.ElementAt(3,0)), &(currtrasf.ElementAt(3,1)), &(currtrasf.ElementAt(3,2)), &(currtrasf.ElementAt(3,3))) )return false;
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// now the real data begins
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// first line, we should know if the format is
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// XX YY ZZ RF
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// or it is
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// XX YY ZZ RF RR GG BB
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// read the entire first line and then count the spaces. it's rude but it works :)
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ii=0;
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fread(&(linebuf[ii++]),1,1,fp);
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while(linebuf[ii-1] != '\n') if ( fread(&(linebuf[ii++]),1,1,fp)==0 ) return false;
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linebuf[ii-1] = '\0'; // terminate the string
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numtokens=1;
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for(ii=0; ii<(int)strlen(linebuf); ii++) if(linebuf[ii] == ' ') numtokens++;
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if(numtokens == 4) hascolor = false;
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else if(numtokens == 7) hascolor = true;
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else return false;
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Transpose(currtrasf);
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int vn = rownum*colnum;
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//VertexIterator vi = Allocator<OpenMeshType>::AddVertices(m,vn);
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//m.vn += vn;
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// parse the first line....
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if(hascolor)
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{
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printf("\n hascolor ");
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sscanf(linebuf,"%f %f %f %f %f %f %f", &xx, &yy, &zz, &rf, &rr, &gg, &bb);
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}
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else
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{
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printf("\n no color ");
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sscanf(linebuf,"%f %f %f %f", &xx, &yy, &zz, &rf);
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}
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//if (computeBbox) m.bbox.SetNull();
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//addthefirstpoint
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(*vi).P()[0]=xx;
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(*vi).P()[1]=yy;
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(*vi).P()[2]=zz;
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(*vi).P() = currtrasf * (*vi).P();
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if (computeBbox) m.bbox.Add( (*vi).P() );
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if(hascolor && savecolor)
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{
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(*vi).C()[0]=rr;
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(*vi).C()[1]=gg;
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(*vi).C()[2]=bb;
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}
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vi++;
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// now for each line until end of mesh (row*col)-1
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for(ii=0; ii<((rownum*colnum)-1); ii++)
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{
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char tmp[255];
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sprintf(tmp, "PTX Mesh Loading... mesh %i", mn);
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if(cb) cb((ii*total)/vn, tmp);
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// read the stream
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if(hascolor) fscanf(fp,"%f %f %f %f %f %f %f", &xx, &yy, &zz, &rf, &rr, &gg, &bb);
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else fscanf(fp,"%f %f %f %f", &xx, &yy, &zz, &rf);
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// add the point
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(*vi).P()[0]=xx;
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(*vi).P()[1]=yy;
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(*vi).P()[2]=zz;
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(*vi).P() = currtrasf * (*vi).P();
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if (computeBbox) m.bbox.Add( (*vi).P() );
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if(hascolor && savecolor)
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{
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(*vi).C()[0]=rr;
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(*vi).C()[1]=gg;
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(*vi).C()[2]=bb;
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}
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vi++;
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}
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if(! onlypoints)
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{
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// now i can triangulate
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int trinum = (rownum-1) * (colnum-1) * 2;
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//OpenMeshType::FaceIterator fi= Allocator<OpenMeshType>::AddFaces(m,trinum);
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// m.fn += trinum;
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int v0i,v1i,v2i, t;
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for(int rit=0; rit<rownum-1; rit++)
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for(int cit=0; cit<colnum-1; cit++)
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{
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if(cb) cb(50 + (t*50)/(rownum*colnum),"PTX Mesh Loading");
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if(!switchside)
|
|
{
|
|
v0i = (rit ) + ((cit ) * rownum);
|
|
v1i = (rit+1) + ((cit ) * rownum);
|
|
v2i = (rit ) + ((cit+1) * rownum);
|
|
}
|
|
else
|
|
{
|
|
v0i = (cit ) + ((rit ) * colnum);
|
|
v1i = (cit+1) + ((rit ) * colnum);
|
|
v2i = (cit ) + ((rit+1) * colnum);
|
|
}
|
|
|
|
|
|
// upper tri
|
|
(*fi).V(2) = &(m.vert[v0i]);
|
|
(*fi).V(1) = &(m.vert[v1i]);
|
|
(*fi).V(0) = &(m.vert[v2i]);
|
|
|
|
if(flipfaces)
|
|
{
|
|
(*fi).V(2) = &(m.vert[v1i]);
|
|
(*fi).V(1) = &(m.vert[v0i]);
|
|
}
|
|
|
|
//m.fn++;
|
|
fi++;
|
|
|
|
if(!switchside)
|
|
{
|
|
v0i = (rit+1) + ((cit ) * rownum);
|
|
v1i = (rit+1) + ((cit+1) * rownum);
|
|
v2i = (rit ) + ((cit+1) * rownum);
|
|
}
|
|
else
|
|
{
|
|
v0i = (cit+1) + ((rit ) * colnum);
|
|
v1i = (cit+1) + ((rit+1) * colnum);
|
|
v2i = (cit ) + ((rit+1) * colnum);
|
|
}
|
|
|
|
// lower tri
|
|
(*fi).V(2) = &(m.vert[v0i]);
|
|
(*fi).V(1) = &(m.vert[v1i]);
|
|
(*fi).V(0) = &(m.vert[v2i]);
|
|
|
|
if(flipfaces)
|
|
{
|
|
(*fi).V(2) = &(m.vert[v1i]);
|
|
(*fi).V(1) = &(m.vert[v0i]);
|
|
}
|
|
|
|
// m.fn++;
|
|
fi++;
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
}
|
|
///Call that load a mesh
|
|
static bool readPTX( OpenMeshType &m, FILE *fp, int mask, CallBackPos *cb=NULL)
|
|
{
|
|
int numtokens;
|
|
int colnum;
|
|
int rownum;
|
|
float xx,yy,zz; // position
|
|
float rr,gg,bb; // color
|
|
float rf; // reflectance
|
|
Matrix44f currtrasf;
|
|
|
|
bool hascolor;
|
|
bool savecolor = ((mask & PTX_COLOR) != 0) && VertexType::HasColor();
|
|
bool computeBbox = ((mask & PTX_COMPUTE_AABBOX) != 0);
|
|
bool onlypoints = ((mask & PTX_ONLY_POINTS) != 0);
|
|
bool switchside = ((mask & PTX_SWITCHSIDE) != 0);
|
|
bool flipfaces = ((mask & PTX_FLIPFACES) != 0);
|
|
int total = 50;
|
|
if ( onlypoints ) total = 100;
|
|
char linebuf[256];
|
|
|
|
fscanf(fp,"%i\n",&colnum);
|
|
fscanf(fp,"%i\n",&rownum);
|
|
|
|
if ( ( colnum <=0 ) || ( rownum <=0 ) ) return false;
|
|
// initial 4 lines [still don't know what is this :) :)]
|
|
if ( !fscanf(fp,"%f %f %f\n", &xx, &yy, &zz) ) return false;
|
|
if ( !fscanf(fp,"%f %f %f\n", &xx, &yy, &zz) ) return false;
|
|
if ( !fscanf(fp,"%f %f %f\n", &xx, &yy, &zz) ) return false;
|
|
if ( !fscanf(fp,"%f %f %f\n", &xx, &yy, &zz) ) return false;
|
|
// now the transformation matrix
|
|
if ( !fscanf(fp,"%f %f %f %f\n", &(currtrasf.ElementAt(0,0)), &(currtrasf.ElementAt(0,1)), &(currtrasf.ElementAt(0,2)), &(currtrasf.ElementAt(0,3))) )return false;
|
|
if ( !fscanf(fp,"%f %f %f %f\n", &(currtrasf.ElementAt(1,0)), &(currtrasf.ElementAt(1,1)), &(currtrasf.ElementAt(1,2)), &(currtrasf.ElementAt(1,3))) )return false;
|
|
if ( !fscanf(fp,"%f %f %f %f\n", &(currtrasf.ElementAt(2,0)), &(currtrasf.ElementAt(2,1)), &(currtrasf.ElementAt(2,2)), &(currtrasf.ElementAt(2,3))) )return false;
|
|
if ( !fscanf(fp,"%f %f %f %f\n", &(currtrasf.ElementAt(3,0)), &(currtrasf.ElementAt(3,1)), &(currtrasf.ElementAt(3,2)), &(currtrasf.ElementAt(3,3))) )return false;
|
|
|
|
//now the real data begins
|
|
// first line, we should know if the format is
|
|
// XX YY ZZ RF
|
|
// or it is
|
|
// XX YY ZZ RF RR GG BB
|
|
// read the entire first line and then count the spaces. it's rude but it works :)
|
|
int ii=0;
|
|
fread(&(linebuf[ii++]),1,1,fp);
|
|
while(linebuf[ii-1] != '\n') if ( fread(&(linebuf[ii++]),1,1,fp)==0 ) return false;
|
|
linebuf[ii-1] = '\0'; // terminate the string
|
|
numtokens=1;
|
|
for(ii=0; ii<(int)strlen(linebuf); ii++) if(linebuf[ii] == ' ') numtokens++;
|
|
if(numtokens == 4) hascolor = false;
|
|
else if(numtokens == 7) hascolor = true;
|
|
else return false;
|
|
Transpose(currtrasf);
|
|
int vn = rownum*colnum;
|
|
VertexIterator vi = Allocator<OpenMeshType>::AddVertices(m,vn);
|
|
m.vn = vn;
|
|
// parse the first line....
|
|
if(hascolor)
|
|
{
|
|
printf("\n hascolor ");
|
|
sscanf(linebuf,"%f %f %f %f %f %f %f", &xx, &yy, &zz, &rf, &rr, &gg, &bb);
|
|
}
|
|
else
|
|
{
|
|
printf("\n no color ");
|
|
sscanf(linebuf,"%f %f %f %f", &xx, &yy, &zz, &rf);
|
|
}
|
|
if (computeBbox) m.bbox.SetNull();
|
|
|
|
//addthefirstpoint
|
|
(*vi).P()[0]=xx;
|
|
(*vi).P()[1]=yy;
|
|
(*vi).P()[2]=zz;
|
|
|
|
if (computeBbox) m.bbox.Add( (*vi).P() );
|
|
if(hascolor && savecolor)
|
|
{
|
|
(*vi).C()[0]=rr;
|
|
(*vi).C()[1]=gg;
|
|
(*vi).C()[2]=bb;
|
|
}
|
|
vi++;
|
|
// now for each line until end of mesh (row*col)-1
|
|
for(ii=0; ii<((rownum*colnum)-1); ii++)
|
|
{
|
|
char tmp[255];
|
|
sprintf(tmp, "PTX Mesh Loading...");
|
|
if(cb) cb((ii*total)/vn, tmp);
|
|
// read the stream
|
|
if(hascolor) fscanf(fp,"%f %f %f %f %f %f %f", &xx, &yy, &zz, &rf, &rr, &gg, &bb);
|
|
else fscanf(fp,"%f %f %f %f", &xx, &yy, &zz, &rf);
|
|
// add the point
|
|
(*vi).P()[0]=xx;
|
|
(*vi).P()[1]=yy;
|
|
(*vi).P()[2]=zz;
|
|
|
|
if (computeBbox) m.bbox.Add( (*vi).P() );
|
|
if(hascolor && savecolor)
|
|
{
|
|
(*vi).C()[0]=rr;
|
|
(*vi).C()[1]=gg;
|
|
(*vi).C()[2]=bb;
|
|
}
|
|
vi++;
|
|
}
|
|
if(! onlypoints)
|
|
{
|
|
// now i can triangulate
|
|
int trinum = (rownum-1) * (colnum-1) * 2;
|
|
typename OpenMeshType::FaceIterator fi= Allocator<OpenMeshType>::AddFaces(m,trinum);
|
|
m.fn = trinum;
|
|
int v0i,v1i,v2i, t;
|
|
t=0;
|
|
for(int rit=0; rit<rownum-1; rit++)
|
|
for(int cit=0; cit<colnum-1; cit++)
|
|
{
|
|
t++;
|
|
if(cb) cb(50 + (t*50)/(rownum*colnum),"PTX Mesh Loading");
|
|
|
|
if(!switchside)
|
|
{
|
|
v0i = (rit ) + ((cit ) * rownum);
|
|
v1i = (rit+1) + ((cit ) * rownum);
|
|
v2i = (rit ) + ((cit+1) * rownum);
|
|
}
|
|
else
|
|
{
|
|
v0i = (cit ) + ((rit ) * colnum);
|
|
v1i = (cit+1) + ((rit ) * colnum);
|
|
v2i = (cit ) + ((rit+1) * colnum);
|
|
}
|
|
|
|
// upper tri
|
|
(*fi).V(2) = &(m.vert[v0i]);
|
|
(*fi).V(1) = &(m.vert[v1i]);
|
|
(*fi).V(0) = &(m.vert[v2i]);
|
|
if(flipfaces)
|
|
{
|
|
(*fi).V(2) = &(m.vert[v1i]);
|
|
(*fi).V(1) = &(m.vert[v0i]);
|
|
}
|
|
|
|
fi++;
|
|
if(!switchside)
|
|
{
|
|
v0i = (rit+1) + ((cit ) * rownum);
|
|
v1i = (rit+1) + ((cit+1) * rownum);
|
|
v2i = (rit ) + ((cit+1) * rownum);
|
|
}
|
|
else
|
|
{
|
|
v0i = (cit+1) + ((rit ) * colnum);
|
|
v1i = (cit+1) + ((rit+1) * colnum);
|
|
v2i = (cit ) + ((rit+1) * colnum);
|
|
}
|
|
// lower tri
|
|
(*fi).V(2) = &(m.vert[v0i]);
|
|
(*fi).V(1) = &(m.vert[v1i]);
|
|
(*fi).V(0) = &(m.vert[v2i]);
|
|
if(flipfaces)
|
|
{
|
|
(*fi).V(2) = &(m.vert[v1i]);
|
|
(*fi).V(1) = &(m.vert[v0i]);
|
|
}
|
|
|
|
fi++;
|
|
}
|
|
}
|
|
if(cb) cb(40,"PTX Mesh Loading - remove bad vertex!");
|
|
for(typename OpenMeshType::VertexIterator vi = m.vert.begin(); vi != m.vert.end(); vi++)
|
|
{
|
|
if((*vi).P() == Point3f(0.0, 0.0, 0.0))
|
|
Allocator<OpenMeshType>::DeleteVertex(m,*vi);
|
|
}
|
|
if(cb) cb(60,"PTX Mesh Loading - remove bad face!");
|
|
onlypoints = ((mask & PTX_ONLY_POINTS) != 0);
|
|
if(! onlypoints)
|
|
{
|
|
for(typename OpenMeshType::FaceIterator fi = m.face.begin(); fi != m.face.end(); fi++)
|
|
{
|
|
if( ((*fi).V(0)->IsD()) || ((*fi).V(1)->IsD()) || ((*fi).V(2)->IsD()) )
|
|
Allocator<OpenMeshType>::DeleteFace(m,*fi);
|
|
}
|
|
// eliminate high angle triangles
|
|
int angle = 88;
|
|
printf(" culling by angle \n");
|
|
float limit = cos( angle*3.14159265358979323846/180.0 );
|
|
Point3f raggio;
|
|
|
|
vcg::tri::UpdateNormals<OpenMeshType>::PerFaceNormalized(m);
|
|
for(typename OpenMeshType::FaceIterator fi = m.face.begin(); fi != m.face.end(); fi++)
|
|
if(!(*fi).IsD())
|
|
{
|
|
raggio = -((*fi).V(0)->P() + (*fi).V(1)->P() + (*fi).V(2)->P()) / 3.0;
|
|
raggio.Normalize();
|
|
if((raggio * (*fi).N()) < limit)
|
|
Allocator<OpenMeshType>::DeleteFace(m,*fi);
|
|
}
|
|
}
|
|
for(typename OpenMeshType::VertexIterator vi = m.vert.begin(); vi != m.vert.end(); vi++)
|
|
{
|
|
if(!(*vi).IsD())
|
|
(*vi).P() = currtrasf * (*vi).P();
|
|
}
|
|
vcg::tri::UpdateNormals<OpenMeshType>::PerFaceNormalized(m);
|
|
vcg::tri::UpdateBounding<CMeshO>::Box(m);
|
|
if(cb) cb(100,"PTX Mesh Loading finish!");
|
|
return true;
|
|
}
|
|
|
|
///Standard call that reading a mesh
|
|
static int Open( OpenMeshType &m, const char * filename, int mask = PTX_ONLY_POINTS, CallBackPos *cb=NULL)
|
|
{
|
|
FILE *fp;
|
|
fp = fopen(filename, "rb");
|
|
if(fp == NULL) return 1;
|
|
m.Clear();
|
|
m.vn=0;
|
|
m.fn=0;
|
|
if (!readPTX( m, fp, mask,cb))
|
|
{
|
|
m.Clear();
|
|
return 1;
|
|
}
|
|
int endfile,end = 0;
|
|
fscanf(fp,"%i%i",&endfile,&end);
|
|
if(end != 0)
|
|
return 2;
|
|
return 0;
|
|
}
|
|
}; // end class
|
|
|
|
} // end Namespace tri
|
|
} // end Namespace io
|
|
} // end Namespace vcg
|
|
#endif |