# ScaleVertices

VTKExamples/Python/Graphs/ScaleVertices

Other Languages

See (Cxx)

### Code

ScaleVertices.py

    #!/usr/bin/env python
    import vtk

    def main():
        g = vtk.vtkMutableUndirectedGraph()

        v1 = g.AddVertex()
        v2 = g.AddVertex()

        g.AddEdge(v1, v2)
        g.AddEdge(v1, v2)

        scales = vtk.vtkFloatArray()
        scales.SetNumberOfComponents(1)
        scales.SetName("Scales")
        scales.InsertNextValue(1.0)
        scales.InsertNextValue(4.0)

        g.GetVertexData().AddArray(scales)

        layoutView = vtk.vtkGraphLayoutView()
        layoutView.AddRepresentationFromInput(g)
        layoutView.ScaledGlyphsOn()
        layoutView.SetScalingArrayName("Scales")
        rGraph = vtk.vtkRenderedGraphRepresentation()
        gGlyph = vtk.vtkGraphToGlyphs()
        rGraph.SafeDownCast(layoutView.GetRepresentation()).SetGlyphType(gGlyph.CIRCLE)
        layoutView.ResetCamera()
        layoutView.Render()
        layoutView.GetInteractor().Start()

    if __name__ == '__main__':
        main()