[vtkusers] How to use output of vtkProjectedTerrainPath with vtkTubeFilter

[Amy Squillacote]

Hi Elvis,

The vtkTubeFilter was creating output; you just couldn't see it since 
the tube radius was set to 0.02, considering that the bounds of the DEM 
dataset are 557945 567725 5.10799e+006 5.12197e+006 1364 3225. Try 
setting the radius to something like 10 instead. (I was able to see the 
tubed lines at that radius.)

- Amy

Elvis Dowson wrote:
> Hi Amy,
>                  I just checked it, yes, I am getting 57 cells on the 
> output with the St. Helens DEM data file. Still no tube gets displayed.
>
> I am attaching the script with this email.
>
>
> ------------------------------------------------------------------------
>
>
> if you comment out the following code 
>
> #vtkPolyDataMapper pathMapper
> #  pathMapper SetInputConnection [projectedPaths GetOutputPort]
>
> and change the following line to 
>
> vtkActor pathActor
>   pathActor SetMapper pathMapper
>   [pathActor GetProperty] SetColor 1 0 0
>   [pathActor GetProperty] SetSpecular .3
>   [pathActor GetProperty] SetSpecularPower 30
>
> you can see the regular line that is generated by vtkProjectedTerrainPath.
>
> When I pass it through the tube filter, I get nothing.
>
> Best regards,
>
> Elvis 
>
>
>
> On Nov 11, 2008, at 6:06 PM, Amy Squillacote wrote:
>
>> Have you verified that you're getting output from 
>> vtkProjectedTerrainPath? Try calling Update on projectedPaths, and 
>> then call GetNumberOfCells() on its output.
>>
>> - Amy
>>

-- 
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