140 lines
4.6 KiB
C++
140 lines
4.6 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: import_raw.h,v $
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****************************************************************************/
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#ifndef __VCGLIB_IMPORT_ASC
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#define __VCGLIB_IMPORT_ASC
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#include <stdio.h>
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#include <fstream>
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#include <iostream>
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#include <vcg/complex/trimesh/allocate.h>
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#include <vcg/complex/trimesh/create/platonic.h>
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#include <vcg/complex/trimesh/clean.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 raw format pointcloud.
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there exists many raw formats. each one with a particular sintax even if they only contains
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*/
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template <class MESH_TYPE>
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class ImporterASC
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{
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public:
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typedef typename MESH_TYPE::VertexPointer VertexPointer;
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typedef typename MESH_TYPE::ScalarType ScalarType;
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typedef typename MESH_TYPE::VertexType VertexType;
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typedef typename MESH_TYPE::FaceType FaceType;
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typedef typename MESH_TYPE::VertexIterator VertexIterator;
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typedef typename MESH_TYPE::FaceIterator FaceIterator;
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enum RAWError {
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E_NOERROR, // 0
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// Error open
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E_CANTOPEN, // 1
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E_UNESPECTEDEOF, // 2
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};
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static const char *ErrorMsg(int error)
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{
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static const char * raw_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 raw_error_msg[error];
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};
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/*!
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* Standard call for reading a mesh
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* \param m the destination mesh
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* \param filename the name of the file to read from
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* \param triangulate if true, the mesh will be triangulated, otherwise only points will be stored
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* \param lineskip number of lines to be skipped at the begin of the file
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* \return the operation result
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*/
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static int Open( MESH_TYPE &m, const char * filename, CallBackPos *cb=0,bool triangulate=false)
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{
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FILE *fp;
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fp = fopen(filename, "r");
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if(fp == NULL)
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{
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return E_CANTOPEN;
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}
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long currentPos = ftell(fp);
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fseek(fp,0L,SEEK_END);
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long fileLen = ftell(fp);
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fseek(fp,currentPos,SEEK_SET);
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m.Clear();
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Point3f pp;
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int cnt=0;
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int ret;
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/* Read a single facet from an ASCII .STL file */
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while(!feof(fp))
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{
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if(cb && (++cnt)%1000) cb( (ftell(fp)*100)/fileLen, "ASC Mesh Loading");
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if(feof(fp)) break;
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ret=fscanf(fp, "%f, %f, %f\n", &pp.X(), &pp.Y(), &pp.Z());
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if(ret!=3) return E_UNESPECTEDEOF;
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VertexIterator vi=Allocator<MESH_TYPE>::AddVertices(m,1);
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(*vi).P().Import(pp);
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}
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fclose(fp);
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// now try to triangulate.
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// search for the first jump
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float baseY = m.vert[0].P().Y();
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int i;
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for(i=1;i<m.vert.size();++i)
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{
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if(m.vert[i].P().Y()!= baseY) break;
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}
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cnt=m.vert.size();
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qDebug("Grid is %i x %i = %i (%i) ",i,cnt/i,i* (cnt/i),cnt);
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tri::FaceGrid(m,i,cnt/i);
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tri::Clean<CMeshO>::FlipMesh(m);
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return E_NOERROR;
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}
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}; // end class
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} // end Namespace tri
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} // end Namespace io
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} // end Namespace vcg
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#endif
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