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smooth.cc
1 #include <iostream>
2 #include <vector>
3 // --------------------
4 #include <OpenMesh/Core/IO/MeshIO.hh>
5 #include <OpenMesh/Core/Mesh/TriMesh_ArrayKernelT.hh>
6
7 typedef OpenMesh::TriMesh_ArrayKernelT<> MyMesh;
8
9
10 int main(int argc, char **argv)
11 {
12 MyMesh mesh;
13
14
15 // check command line options
16 if (argc != 4)
17 {
18 std::cerr << "Usage: " << argv[0] << " #iterations infile outfile\n";
19 return 1;
20 }
21
22
23
24 // read mesh from stdin
25 if ( ! OpenMesh::IO::read_mesh(mesh, argv[2]) )
26 {
27 std::cerr << "Error: Cannot read mesh from " << argv[2] << std::endl;
28 return 1;
29 }
30
31
32
33 // this vertex property stores the computed centers of gravity
34 OpenMesh::VPropHandleT<MyMesh::Point> cogs;
35 mesh.add_property(cogs);
36
37 // smoothing mesh argv[1] times
38 MyMesh::VertexIter v_it, v_end(mesh.vertices_end());
39 MyMesh::VertexVertexIter vv_it;
40 MyMesh::Point cog;
41 MyMesh::Scalar valence;
42 unsigned int i, N(atoi(argv[1]));
43
44
45 for (i=0; i < N; ++i)
46 {
47 for (v_it=mesh.vertices_begin(); v_it!=v_end; ++v_it)
48 {
49 mesh.property(cogs,*v_it).vectorize(0.0f);
50 valence = 0.0;
51
52 for (vv_it=mesh.vv_iter( *v_it ); vv_it; ++vv_it)
53 {
54 mesh.property(cogs,*v_it) += mesh.point( *vv_it );
55 ++valence;
56 }
57 mesh.property(cogs,*v_it) /= valence;
58 }
59
60 for (v_it=mesh.vertices_begin(); v_it!=v_end; ++v_it)
61 if ( !mesh.is_boundary( *v_it ) )
62 mesh.set_point( *v_it, mesh.property(cogs,*v_it) );
63 }
64
65
66 // write mesh to stdout
67 if ( ! OpenMesh::IO::write_mesh(mesh, argv[3]) )
68 {
69 std::cerr << "Error: cannot write mesh to " << argv[3] << std::endl;
70 return 1;
71 }
72
73 return 0;
74 }
OpenMesh::IO::read_mesh
bool read_mesh(Mesh &_mesh, const std::string &_filename)
Read a mesh from file _filename.
Definition: MeshIO.hh:104
OpenMesh::PolyMeshT::VertexVertexIter
Kernel::VertexVertexIter VertexVertexIter
Circulator.
Definition: PolyMeshT.hh:165
OpenMesh::PolyMeshT::Point
Kernel::Point Point
Coordinate type.
Definition: PolyMeshT.hh:115
OpenMesh::TriMesh_ArrayKernelT
Definition: TriMesh_ArrayKernelT.hh:98
OpenMesh::VPropHandleT
Definition: Property.hh:487
OpenMesh::PolyMeshT::Scalar
Kernel::Scalar Scalar
Scalar type.
Definition: PolyMeshT.hh:113
OpenMesh::IO::write_mesh
bool write_mesh(const Mesh &_mesh, const std::string &_filename, Options _opt=Options::Default, std::streamsize _precision=6)
Write a mesh to the file _filename.
Definition: MeshIO.hh:199