[vtkusers] How to use output of vtkProjectedTerrainPath with vtkTubeFilter

[Amy Squillacote]

Have you verified that you're getting output from 
vtkProjectedTerrainPath? Try calling Update on projectedPaths, and then 
call GetNumberOfCells() on its output.

- Amy

Elvis Dowson wrote:
> Hi,
>         I am trying to pass the output of vtkProjectedTerrainPath to 
> vtkTubeFilter, to extract a thicker projected terrain path, but I just 
> get a blank screen with the following code. What am I doing wrong?
>
>
> vtkProjectedTerrainPath projectedPaths
>   projectedPaths SetInput terrainPaths
>   projectedPaths SetSource [reader GetOutput]
>   projectedPaths SetHeightOffset 25
>   projectedPaths SetHeightTolerance 5
>   projectedPaths SetProjectionModeToNonOccluded
>   projectedPaths SetProjectionModeToHug
>
> vtkTubeFilter pathTube
>   pathTube SetNumberOfSides 8
>   pathTube SetInputConnection [projectedPaths GetOutputPort]
>   pathTube SetRadius .02
>
> vtkPolyDataMapper pathTubeMapper
>   pathTubeMapper SetInputConnection [pathTube GetOutputPort]
>
> vtkActor paths
>   paths SetMapper pathTubeMapper
>   [paths GetProperty] SetColor 1 0 0
>   [paths GetProperty] SetSpecular .3
>   [paths GetProperty] SetSpecularPower 30
>
>
> Best regards,
>
> Elvis Dowson
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-- 
Amy Squillacote                    Phone: (256) 726-4839
Computer Scientist                 Fax: (256) 726-4806
CFD Research Corporation           Web: http://www.cfdrc.com
215 Wynn Drive, Suite 501
Huntsville, AL  35805