[vtkusers] PLEASE HELP: creating vtkImage programmatically

[Richard.Bridge at tessella.com]

Hi,

I am [still] having problems with creating a surface/ carpet plot 
correctly in java with vtk4.2. 

Is there an example of, or can anyone tell me how to:

1. programatically create a vtkImage  (or similar data container) to 
contain x y and z values from an array (x.length == y.length ==z.length). 
I can only find examples of doing this from a file.

2. use the vtkWarpScalar filter to create a carpet plot distorting the X-Y 
surface by the Z-Values.

I am sure this must be fairly easy,but whichever way I try to construct 
the data I get an error from the vtkWarpScalar Filter saying there are no 
Scalars to warp by.

The only way I have been able to get an output is by using the 
vtkSurfaceReconstructionFIlter with a contourFilter  and a programatically 
created polyData but this appears to "spread" the edges of my dataset and 
requires preprocessing of the data to scale the Z values.

Please help, I am totally stuck on this and its the last bit I need to 
finish my app.

Richard

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