185322a75b
- added all the tutorials except "Using IO::Options" as unittests git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@968 fdac6126-5c0c-442c-9429-916003d36597
72 lines
1.8 KiB
C++
72 lines
1.8 KiB
C++
#include <iostream>
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// --------------------
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#include <OpenMesh/Core/IO/MeshIO.hh>
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#include <OpenMesh/Core/Mesh/TriMesh_ArrayKernelT.hh>
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typedef OpenMesh::TriMesh_ArrayKernelT<> MyMesh;
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int main(int argc, char **argv)
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{
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MyMesh mesh;
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if (argc!=2)
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{
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std::cerr << "Usage: " << argv[0] << " <input>\n";
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return 1;
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}
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// request vertex normals, so the mesh reader can use normal information
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// if available
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mesh.request_vertex_normals();
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// assure we have vertex normals
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if (!mesh.has_vertex_normals())
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{
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std::cerr << "ERROR: Standard vertex property 'Normals' not available!\n";
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return 1;
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}
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OpenMesh::IO::Options opt;
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if ( ! OpenMesh::IO::read_mesh(mesh,argv[1], opt))
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{
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std::cerr << "Error loading mesh from file " << argv[1] << std::endl;
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return 1;
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}
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// If the file did not provide vertex normals, then calculate them
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if ( !opt.check( OpenMesh::IO::Options::VertexNormal ) )
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{
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// we need face normals to update the vertex normals
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mesh.request_face_normals();
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// let the mesh update the normals
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mesh.update_normals();
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// dispose the face normals, as we don't need them anymore
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mesh.release_face_normals();
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}
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// move all vertices one unit length along it's normal direction
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for (MyMesh::VertexIter v_it = mesh.vertices_begin();
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v_it != mesh.vertices_end(); ++v_it)
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{
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std::cout << "Vertex #" << *v_it << ": " << mesh.point( *v_it );
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mesh.set_point( *v_it, mesh.point(*v_it)+mesh.normal(*v_it) );
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std::cout << " moved to " << mesh.point( *v_it ) << std::endl;
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}
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// don't need the normals anymore? Remove them!
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mesh.release_vertex_normals();
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// just check if it really works
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if (mesh.has_vertex_normals())
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{
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std::cerr << "Ouch! ERROR! Shouldn't have any vertex normals anymore!\n";
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return 1;
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}
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return 0;
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}
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