[vtkusers] Creating a polydata of edges (lines) from a vtkGraph

[Jeff Baumes]

On Wed, Nov 11, 2009 at 10:41 AM, David Doria
<daviddoria+vtk at gmail.com<daviddoria%2Bvtk at gmail.com>
> wrote:

> Is there a way to either
> 1) associate a coordinate with each vertex in a graph/tree?
> or
> 2) create a polydata from a graph/tree where in the process a
> coordinate gets assigned a vertex?
>
> I would like to visualize a nearest neighbor graph on a set of 3d
> points. Can anyone point me to the right keywords/classes/functions to
> do such a thing?
>


vtkGraphLayout algorithm assigns points to a graph. You can also do this
manually by:

vtkPoints* pts = vtkPoints::New();
pts->SetNumberOfPoints(graph->GetNumberOfVertices());
// Fill in points here
graph->SetPoints(pts);

Jeff
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