CGAL users discussion list

[Shrabani Ghosh <>]

Hi,

I am interested to convert a mesh from vtk space to cgal space.
In my vtk mesh, let's say two different information exists for vertices. I
used the same vertex id to assign a color to the CGAL mesh, but the CGAL
mesh does not look like the same. 
<http://cgal-discuss.949826.n4.nabble.com/file/t376134/36.png>  
<http://cgal-discuss.949826.n4.nabble.com/file/t376134/37.png> 

The first picture is the vtk file. Here, all the vertices of one side of the
mesh are red. I assigned the same for the CGAL but I got the mesh look like
this. 
I think, there is a is difference between CGAL and vtk vertex. 

In my code, I used property_map.
Mesh::Property_map<vertex_descriptor,CGAL::Color> vcolors;
And assigned value something like this,
if(vtkFileVertexValue[i] == 2)
vcolors[vd] = CGAL::RED;    // here i and vd are the same value

I have tried all the patterns, but could not get a pattern where
vtkFilevertex will be exactly the same place of CGAL vertex. 

Another question, is it possible to increase the vertex_descriptor by more
than one in the loop? Like below here
BOOST_FOREACH( vertex_descriptor vd, m.vertices())
how can I increase the vd by 5 in the loop?


Regards
Shrabani Ghosh








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