[vtkusers] How to map 2 scalar attributes simultaneously?

Immo Trinks trinks at esc.cam.ac.uk
Wed Jun 2 13:13:41 EDT 2004


Thank you Mathieu.

How do I tell vtkThreshold which scalar to use?
I use one vtkPolyDataReader and set one scalar name that I want to use.

vtkPolyDataReader dataReader
dataReader SetFileName "data.vtk"
dataReader SetScalarsName "scalar1"

Then the vtkGlyph3d shall use scalar2 for the mapping. Somehow ... 

Immo


On Wednesday 02 Jun 2004 5:49 pm, Mathieu Malaterre wrote:
> Immo,
>
> 	I guess you can do a vtkThresholdPoints on scalar2 followed by a
> vtkGlyph3d on scalar1.
>
> HTH
> Mathieu
>
> Immo Trinks wrote:
> > Hi,
> >
> > I have VTK point data (1500 points) with two attributes (scalar1 and
> > scalar2) assigned to each data point.
> >
> > I would like to display the points as spheres that are coloured relative
> > to scalar1. At the same time, only those spheres shall be visible for
> > which scalar2 is within a given scalar range. How can this be done?
> >
> > Thank you for any help!
> > Immo
> >
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