[vtkusers] Fwd: vtkLookupTable reacts to rotating actor

[Beatrix Schober]

Hi Cory,

yes, that is correct.

Regards,

Bea



-----Ursprüngliche Nachricht-----
Von: vtkusers [mailto:vtkusers-bounces at vtk.org] Im Auftrag von Cory Quammen
Gesendet: Freitag, 8. Dezember 2017 16:14
An: Beatrix Schober <beatrix.schober at gmail.com>
Cc: vtkusers <vtkusers at vtk.org>
Betreff: Re: [vtkusers] vtkLookupTable reacts to rotating actor

Hmm, I'm not sure I understand what you want to see. Do you want the colors
on the polydata to change so that they correspond to the z value after
rotating or translating the actor?

On Fri, Dec 8, 2017 at 9:34 AM, Beatrix Schober <beatrix.schober at gmail.com>
wrote:
> Hi,
>
> I am wondering how to solve following problem:
>
> I have vtkPolyData (with x, y, z values, whereas z values as grayvalue
> defines the "height") and use the vtkLookupTable to display the points
> in colors (heatmap).
>
> If I rotate or translate the actor with the mouse, the data does not
> change, but the lookup table is not correct any more. The same issue
> with calling scale on the actor.
>
> I also thought about changing the z value of vtkPolyData after
> scaling, but still I do not know, how to handle the rotation or
> translation of the actor with the mouse...
>
> How can I adapt the lookup table, which should fit the scale then?
>
> Thank you very much for your hints!
>
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--
Cory Quammen
Staff R&D Engineer
Kitware, Inc.
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