first version

apps/sample/trimesh_pos_demo/trimesh_vfiter_demo.cpp

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+#include <vector>
+
+#include <vcg/simplex/vertexplus/base.h>   
+#include <vcg/simplex/vertexplus/component.h>   
+#include <vcg/simplex/faceplus/base.h>   
+#include <vcg/simplex/faceplus/component.h>   
+
+#include <vcg/complex/trimesh/base.h>   
+#include<vcg/complex/trimesh/create/platonic.h>
+
+#include<vcg/complex/trimesh/update/topology.h>
+
+#include <vcg/simplex/face/pos.h> 
+
+class MyEdge;
+class MyFace;
+
+class MyVertex: public vcg::VertexSimp2<MyVertex,MyEdge,MyFace, vcg::vert::Coord3d, vcg::vert::Normal3f,vcg::vert::VFAdj>{};
+class MyFace: public vcg::FaceSimp2<MyVertex,MyEdge,MyFace, vcg::face::VertexRef,vcg::face::VFAdj>{};
+class MyMesh: public vcg::tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace> > {};
+
+void OneRingNeighborhoodVF( MyVertex * v)
+{  
+	vcg::face::VFIterator<MyFace> vfi(v); //initialize the iterator tohe first face
+	for(;!vfi.End();++vfi)
+	{
+		MyFace* f = vfi.F();
+		// ...do something with face f
+	}
+}
+
+int main()
+{
+	MyMesh m;
+	vcg::tri::Tetrahedron(m);
+	vcg::tri::UpdateTopology<MyVCGMesh>::FaceFace(mesh);
+	OneRingNeighborhoodVF(&(*m.vert.begin()));
+	return 0;
+}