[vtkusers] SetScalarComponentFromFloat() and Python

[Glen Lehmann]

Hi Lionel,

In python you need to use vtkImageImport to covert a python list of 
values into vtkImageData.

To access individual scalars you can either export the entire image 
using vtkImageExport, or use vtkImageData.GetScalarComponentAsFloat (or 
GetScalarComponentAsDouble for VTK >= 4.4).

HTH,
Glen

On Mar 14, 2005, at 8:33 PM, Lionel Dupuy wrote:

> Dear vtk users
>  
> I am using VTK with python to investigate some basic visualisation 
> tools, and I can't get the SetScalarComponentFromFloat() method to 
> work. Here is a sample of code that does not work. 
>  
> ...
> id = vtk.vtkImageData()
> id.SetDimensions(100,100,1)
> id.SetScalarTypeToUnsignedShort()
> id.SetNumberOfScalarComponents(1)
> id.SetScalarComponentFromFloat (1, 1, 1, 0,1.0)
> ...
>  
>
> Have I missed something? Does the method exist with the python 
> wrapper? Is there any other way to access individual scalars with 
> python?
> Any advice will be appreciate, as I am new in VTK. Thanks all!
>  
> Lionel
>  
>  
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