C# RhinoCommon Mesh Topological Indentical Vertices

Rhino Developer
1

Hi,

When vertices become topologically identical?
Is it somehow connected with tolerance?
int[] tv0 = mesh.Vertices.GetTopologicalIndenticalVertices(v0);

The reason for asking is that for cylindrical surface mesh subdivision I get 4 identical points, while same surface with some distortion on he right has only two topolgically identical points. (no gaps at surface edge)

Rhinocommon
Rhinocommon865×1155 128 KB

And this tolerance issue results only on at the edges of surfaces, when I detect closed surface condition I reset end points to start ones:

Ends
Ends1462×683 255 KB

2

Hi @Petras_Vestartas,

From openNURBS:

In order to keep the mesh facet definition simple and make the mesh definition easily used in common rendering application, if two facets share a vertex location but have different normals, curvatures, textures, etc., at that common vertex location, then the vertex is duplicated.

No.

– Dale

1 Like
3

Thanks Dale