[vtkusers] Active Scalars

Huiqun Zhou zhou_huiqun at hotmail.com
Tue Jul 27 00:56:53 EDT 2004


You'd better give more detail of your code. At least. on the surface your
understanding is not
wrong. How did you set the SetGenerateCutScalars, on or off?

Huiqun Zhou


----- Original Message ----- 
From: "tom fogal" <tfogal at apollo.sr.unh.edu>
To: <vtkusers at vtk.org>
Sent: Tuesday, July 27, 2004 7:08 AM
Subject: [vtkusers] Active Scalars


> I'm curious about what exactly VTK does with the 'Active' scalar values
> in a RectilinearGrid (or maybe it does the same for
> Unstructured-/Structured- Grids, etc). I've been creating 2d cuts of a
> dataset with one set of 'active' scalar values, creating images of
> them, and today I've started using a whole new set but I'm still seeing
> the same resulting images!
>
> I assumed that a 2d cut of a RectilinearGrid would give me a rectangle
> with the color at each location indication the value at that location,
> where higher values are given a color closer to red, lower values
> closer to blue. Perhaps this is not how vtkCutter works when given a
> vtkPlane? Maybe it is using my active vector values... ?
>
> Can anybody clarify how this works?
>
> -tom
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