[vtkusers] Display 'Transparent' Map

[Dominik Szczerba]

... and/or actor transparency.
- Dominik

jonathan grimm wrote:
> You could try vtkImageThreshhold and vtkImageMask or vtkImageMathematics to
> combine the images in advance.
> For rendering, simple is vtkImageActor.
> 
> On 8/15/07, Janny Dong <janny.dong at gmail.com> wrote:
>> Hello, vtkusers
>>
>> I made a movie with VTK to visualize the temperature changes, as shown in
>> the attached screen shot (map.jpg). The red dots are locations of
>> measurements. What I want to do is display a geographic map ( e.g. US map)
>> over this color map showing the state boundaries. The US map is kind of
>> 'floating' above my temperature map, masking the ocean part but not the
>> color changes (as in usmap.jpg).
>>
>> Could someone shed some lights on which VTK class to use? I was looking at
>> vtkTexture but I don't think it is the right one.
>>
>> Thanks!
>> Janny
>>
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> 
> 
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-- 
Dominik Szczerba, Ph.D.
Computer Vision Lab CH-8092 Zurich
http://www.vision.ee.ethz.ch/~domi