simple VB question

i.e.

Dim m as new mesh

...

Dim fList as new List(of meshFace)

fList.addrange(m.faces)

^^^^this works perfectly

but how to add edges, topology edges, vertices, topology vertices to any list without looping ? or what has to be written in list constructor ( of what ?)

When I create List(of point3d) and try to add vertices (m.vertices) I get casting error.

And yes, I know "m.vertices.topoint3darray", but is there any more elegant (like adding faces) way of creating lists ?

Replies to This Discussion

Permalink Reply by David Rutten on March 15, 2012 at 11:29am

Mesh vertices are Point3f, not Point3d. Edges do not have a type associated with them, so you cannot create a list of MeshEdges, because MeshEdge doesn't exist. The same is true of TopologyVertices.

But I'm afraid the Mesh class is still somewhat cumbersome to work with.

David Rutten

david@mcneel.com

Poprad, Slovakia

Permalink Reply by Vicente Soler on March 15, 2012 at 11:36am

I think I read in some v5 release update that double precision meshes are now possible.

At least this code works:

Dim m As New mesh

Dim vertexlist As New list(Of point3d)

vertexlist.add(New point3d(1, 0, 0))

vertexlist.add(New point3d(0, 1, 0))

vertexlist.add(New point3d(1, 1, 0))

m.Vertices.AddVertices(vertexlist.toarray)

m.Faces.AddFace(0, 1, 2)

a = m

Permalink Reply by Mateusz Zwierzycki on March 15, 2012 at 12:24pm

Thanks to both of you.

David - I actually like to work with mesh class, but one thing makes me confused : Which should I operate on - topologyVertices or vertices. (as far as I know vertices and topologyVertices are differently ordered)

Permalink Reply by David Rutten on March 15, 2012 at 1:12pm

TopologyVertices are computed from the Vertices. You never create your own topological classes, they are created by Rhino.

David Rutten

david@mcneel.com

Poprad, Slovakia

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