vcglib/apps/sample/trimesh_curvature/trimesh_curvature.cpp

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* Visual and Computer Graphics Library                            o     o   *
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/*! \file trimesh_curvature.cpp
\ingroup code_sample

\brief an example showing the various techniques for computing curvatures

This file contain a minimal example of the library

*/
#include <vcg/complex/complex.h>

#include <vcg/complex/algorithms/create/platonic.h>
#include <vcg/complex/algorithms/update/curvature.h>

#include<wrap/io_trimesh/export_off.h>

class MyEdge;
class MyFace;
class MyVertex;
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>  > {};

int main( int /*argc*/, char **/*argv*/ )
{
  MyMesh m;
  vcg::tri::Torus(m,30,10);
  vcg::tri::io::ExporterOFF<MyMesh>::Save(m,"torus.off");

  vcg::tri::UpdateTopology<MyMesh>::FaceFace(m);
//  vcg::tri::UpdateCurvature<MyMesh>::VertexCurvature(m);
  vcg::tri::UpdateCurvature<MyMesh>::MeanAndGaussian(m);
  vcg::tri::UpdateCurvature<MyMesh>::PrincipalDirections(m);
  //vcg::tri::UpdateCurvature<MyMesh>::PrincipalDirectionsNormalCycles(m);
  vcg::tri::UpdateCurvature<MyMesh>::PrincipalDirectionsPCA(m,m.bbox.Diag()/100);

  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;
}