[vtkusers] illustrate a line

[andre at ynic.york.ac.uk]

I find the vtkLineSource easiest to use when I am drawing a line that
passes between just two points:

rake = vtk.vtkLineSource()
rake.SetPoint1(15, -5, 32)
rake.SetPoint2(15, 5, 32)
rake.SetResolution(21)
rakeMapper = vtk.vtkPolyDataMapper()
rakeMapper.SetInputConnection(rake.GetOutputPort())
rakeActor = vtk.vtkActor()
rakeActor.SetMapper(rakeMapper)

(taken directly from the
/Examples/VisualizationAlgorithms/Python/streamSurface.py example at
http://www.vtk.org/doc/nightly/html/c2_vtk_e_3.html#c2_vtk_e_vtkLineSource)

It's probably not the best way .. but it works for me :)

> Hi all,
>
> what is the best way to illustrate a line between - given two space
> points?
> and what is a good way to represent points?
> i.e
> given (1,0,0) and (0,1,0) ==>
> vtkPython script illustrates  the line : (t,1-t,0)
>
> thank you!
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