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23 /*! \file trimesh_curvature.cpp
24 \ingroup code_sample
25
26 \brief an example showing the various techniques for computing curvatures
27
28 */
29 #include <vcg/complex/complex.h>
30
31 #include <vcg/complex/algorithms/create/platonic.h>
32 #include <vcg/complex/algorithms/update/curvature.h>
33
34 #include<wrap/io_trimesh/export_off.h>
35
36 class MyEdge;
37 class MyFace;
38 class MyVertex;
39 struct MyUsedTypes : public vcg::UsedTypes< vcg::Use<MyVertex> ::AsVertexType,
40 vcg::Use<MyEdge> ::AsEdgeType,
41 vcg::Use<MyFace> ::AsFaceType>{};
42
43 class MyVertex : public vcg::Vertex<MyUsedTypes, vcg::vertex::Coord3f, vcg::vertex::Normal3f, vcg::vertex::VFAdj, vcg::vertex::CurvatureDirf, vcg::vertex::Curvaturef, vcg::vertex::BitFlags >{};
44 class MyFace : public vcg::Face< MyUsedTypes, vcg::face::FFAdj, vcg::face::VFAdj, vcg::face::VertexRef, vcg::face::BitFlags > {};
45 class MyEdge : public vcg::Edge<MyUsedTypes>{};
46 class MyMesh : public vcg::tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace> , std::vector<MyEdge> > {};
47
main(int,char **)48 int main( int /*argc*/, char **/*argv*/ )
49 {
50 MyMesh m;
51 vcg::tri::Torus(m,30,10);
52
53 vcg::tri::UpdateTopology<MyMesh>::FaceFace(m);
54 vcg::tri::UpdateTopology<MyMesh>::VertexFace(m);
55
56 // Two different techniques for computing Discrete Gaussian and Mean Curvature
57 // they require the presence of the vertex::Curvature component
58 vcg::tri::UpdateCurvature<MyMesh>::PerVertex(m);
59 vcg::tri::UpdateCurvature<MyMesh>::MeanAndGaussian(m);
60
61 // Two different techniques for computing Principal Curvature Directions
62 // they require the presence of the vertex::CurvatureDir component
63 vcg::tri::UpdateCurvature<MyMesh>::PrincipalDirections(m);
64 vcg::tri::UpdateCurvature<MyMesh>::PrincipalDirectionsNormalCycle(m);
65 printf("Input mesh vn:%i fn:%i\n",m.VN(),m.FN());
66
67 return 0;
68 }
69