First checkin for OpenMesh 2.0

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@2 fdac6126-5c0c-442c-9429-916003d36597

Doc/Tutorial/03-properties/smooth.cc

@@ -0,0 +1,74 @@
+#include <iostream>
+#include <vector>
+// --------------------
+#include <OpenMesh/Core/IO/MeshIO.hh>
+#include <OpenMesh/Core/Mesh/TriMesh_ArrayKernelT.hh>
+
+typedef OpenMesh::TriMesh_ArrayKernelT<>  MyMesh;
+
+
+int main(int argc, char **argv)
+{
+  MyMesh  mesh;
+
+
+  // check command line options
+  if (argc != 4) 
+  {
+    std::cerr << "Usage:  " << argv[0] << " #iterations infile outfile\n";
+    return 1;
+  }
+
+
+
+  // read mesh from stdin
+  if ( ! OpenMesh::IO::read_mesh(mesh, argv[2]) )
+  {
+     std::cerr << "Error: Cannot read mesh from " << argv[2] << std::endl;
+     return 1;
+  }
+
+
+
+  // this vertex property stores the computed centers of gravity
+  OpenMesh::VPropHandleT<MyMesh::Point> cogs;
+  mesh.add_property(cogs);
+
+  // smoothing mesh argv[1] times
+  MyMesh::VertexIter          v_it, v_end(mesh.vertices_end());
+  MyMesh::VertexVertexIter    vv_it;
+  MyMesh::Point               cog;
+  MyMesh::Scalar              valence;
+  unsigned int                i, N(atoi(argv[1]));
+
+  
+  for (i=0; i < N; ++i)
+  {
+    for (v_it=mesh.vertices_begin(); v_it!=v_end; ++v_it)
+    {      
+      mesh.property(cogs,v_it).vectorize(0.0f);
+      valence = 0;
+      
+      for (vv_it=mesh.vv_iter( v_it ); vv_it; ++vv_it)
+      {
+	mesh.property(cogs,v_it) += mesh.point( vv_it );
+	++valence;
+      }
+      mesh.property(cogs,v_it) /= valence;
+    }
+    
+    for (v_it=mesh.vertices_begin(); v_it!=v_end; ++v_it)
+      if ( !mesh.is_boundary( v_it ) )
+	mesh.set_point( v_it, mesh.property(cogs,v_it) );
+  }
+
+
+  // write mesh to stdout
+  if ( ! OpenMesh::IO::write_mesh(mesh, argv[3]) )
+  {
+    std::cerr << "Error: cannot write mesh to " << argv[3] << std::endl;
+    return 1;
+  }
+
+  return 0;
+}