vcglib/apps/sample/trimesh_base/trimesh_base.cpp

78 lines
3.8 KiB
C++

/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
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* Copyright(C) 2004-2016 \/)\/ *
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* ISTI - Italian National Research Council | *
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* This program is free software; you can redistribute it and/or modify *
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* (at your option) any later version. *
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* This program is distributed in the hope that it will be useful, *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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****************************************************************************/
/*! \file trimesh_base.cpp
\ingroup code_sample
\brief the minimal example of using the lib
This file contain a minimal example of the library, showing how to load a mesh and how to compute per vertex normals on it.
*/
#include<vcg/complex/complex.h>
#include<wrap/io_trimesh/import_off.h>
#include<vcg/complex/algorithms/update/topology.h>
#include<vcg/complex/algorithms/update/normal.h>
class MyVertex; class MyEdge; class MyFace;
struct MyUsedTypes : public vcg::UsedTypes<vcg::Use<MyVertex> ::AsVertexType,
vcg::Use<MyEdge> ::AsEdgeType,
vcg::Use<MyFace> ::AsFaceType>{};
class MyVertex : public vcg::Vertex< MyUsedTypes, vcg::vertex::Coord3f, vcg::vertex::Normal3f, vcg::vertex::BitFlags >{};
class MyFace : public vcg::Face< MyUsedTypes, vcg::face::FFAdj, vcg::face::VertexRef, vcg::face::BitFlags > {};
class MyEdge : public vcg::Edge< MyUsedTypes> {};
class MyMesh : public vcg::tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace> , std::vector<MyEdge> > {};
class MyVertex0 : public vcg::Vertex< MyUsedTypes, vcg::vertex::Coord3f, vcg::vertex::BitFlags >{};
class MyVertex1 : public vcg::Vertex< MyUsedTypes, vcg::vertex::Coord3f, vcg::vertex::Normal3f, vcg::vertex::BitFlags >{};
class MyVertex2 : public vcg::Vertex< MyUsedTypes, vcg::vertex::Coord3f, vcg::vertex::Color4b, vcg::vertex::CurvatureDirf,
vcg::vertex::Qualityf, vcg::vertex::Normal3f, vcg::vertex::BitFlags >{};
int main( int argc, char **argv )
{
if(argc<2)
{
printf("Usage trimesh_base <meshfilename.obj>\n");
return -1;
}
/*!
*/
MyMesh m;
if(vcg::tri::io::ImporterOFF<MyMesh>::Open(m,argv[1])!=vcg::tri::io::ImporterOFF<MyMesh>::NoError)
{
printf("Error reading file %s\n",argv[1]);
exit(0);
}
vcg::tri::RequirePerVertexNormal(m);
vcg::tri::UpdateNormal<MyMesh>::PerVertexNormalized(m);
printf("Input mesh vn:%i fn:%i\n",m.VN(),m.FN());
printf( "Mesh has %i vert and %i faces\n", m.VN(), m.FN() );
return 0;
}