vcglib/apps/sample/trimesh_select/trimesh_select.cpp

64 lines
3.2 KiB
C++

/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004-2016 \/)\/ *
* Visual Computing Lab /\/| *
* ISTI - Italian National Research Council | *
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* All rights reserved. *
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* 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) *
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****************************************************************************/
/*! \file trimesh_select.cpp
\ingroup code_sample
\brief the minimal example of using the selection functionality
*/
#include<vcg/complex/complex.h>
#include<vcg/complex/algorithms/create/platonic.h>
using namespace vcg;
using namespace std;
class MyFace;
class MyVertex;
struct MyUsedTypes : public UsedTypes< Use<MyVertex>::AsVertexType, Use<MyFace>::AsFaceType>{};
class MyVertex : public Vertex< MyUsedTypes, vertex::VFAdj, vertex::Coord3f, vertex::Normal3f, vertex::BitFlags >{};
class MyFace : public Face < MyUsedTypes, face::VFAdj, face::Normal3f, face::VertexRef, face::BitFlags > {};
class MyMesh : public vcg::tri::TriMesh<vector<MyVertex>, vector<MyFace> > {};
int main(int ,char ** )
{
MyMesh m;
// build a 10x10 grid of 100 vertices and 200 faces.
tri::Grid(m,10,10,1.0f,1.0f);
tri::UpdateFlags<MyMesh>::VertexBorderFromNone(m);
int cornerNum = tri::UpdateSelection<MyMesh>::VertexCornerBorder(m,math::ToRad(100.0f));
printf("Mesh has %i vertexes %i faces and %i corners\n",m.VN(),m.FN(),cornerNum);
int borderNum = tri::UpdateSelection<MyMesh>::VertexFromBorderFlag(m);
int internalNum = tri::UpdateSelection<MyMesh>::VertexInvert(m);
int faceNotOnBoundaryNum = tri::UpdateSelection<MyMesh>::FaceFromVertexStrict(m);
printf("%i vertexes are on the boundary and %i internal and internal faces are %i \n",borderNum,internalNum,faceNotOnBoundaryNum);
int innerFacesNum = tri::UpdateSelection<MyMesh>::FaceErode(m);
printf("Eroding the face selection of on ring of faces bring it to %i faces\n",innerFacesNum);
return 0;
}