[vtkusers] creating a solid object from 3D points

[Clare Fitzpatrick]

Hi,

I have a set of x,y,z points which i want to convert to a solid object.
I am reading them into vtk using vtkParticleReader:

vtkParticleReader reader
  reader SetFileName "C:/points3D.txt"
  reader SetDataByteOrderToBigEndian

vtkPolyDataMapper mapper
    mapper SetInputConnection [reader GetOutputPort]

vtkActor actor
    actor SetMapper mapper
    [actor GetProperty] SetPointSize 1

ren1 AddActor actor


The points in my .txt file are in a random order. Is it possible to create a solid object (the shape you'd get if you shrink-wrapped something around all the points) directly from these points, or do i have to arrange them into a particlar order so that i can use vtkDelaunay2D or vtkCellArray and vtkPolyData to create the surface?

Thanks

Clare

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