[vtkusers] How to show a 3D scalar dataset on a polygon?

[AGPX]

Hi,

thanks for reply. What I need is to show the scalar field using colors (through a lookup table) on a polygonal surface. If I'm not wrong with vtkGlyph3D you cannot achieve this, am I right? Somebody have tried to extend vtkOpenGLTexture class to support 3D texture? Any hints on how I can do it? Alternatively I can render this polygonal surfaces using OpenGL directly.... I can mix vtk rendering with direct OpenGL commands?

Thanks,

- AGPX




________________________________
Da: Jérôme <jerome.velut at gmail.com>
A: AGPX <agpxnet at yahoo.it>
Cc: vtk vtk <vtkusers at vtk.org>
Inviato: Dom 14 marzo 2010, 10:55:36
Oggetto: Re: [vtkusers] How to show a 3D scalar dataset on a polygon?

Hi,
My understanding is that you have a 3D vector defined at each point of your volume. If I am not wrong, you may want to use vtkGlyph3D. 

HTH
Jerome


2010/3/14 AGPX <agpxnet at yahoo.it>

Hi,
>
>>I have a volume dataset of scalars that represent an electromagnetic field. I need show this field on a set of polygon. This could be solved easily IF vtk support 3D texture, but very sadly 3D textures aren't supported. There's another way to show the field on the polygons?
>
>Please help, I'm stucked! Thanks.
>
>- AGPX
>
>
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