[vtkusers] Coloring of Iso-Surfaces (vtkContourFilter)

[Sebastien Jourdain]

You have to do something like that

scalarIsoSurfaceMapper->SetLookupTable( cuttingPlaneLUT );

Therefore the mapper will color both outputs with the same color manner.

Seb

On Mon, Mar 15, 2010 at 8:44 AM, Sebastian Gatzka <
sebastian.gatzka at stud.tu-darmstadt.de> wrote:

>  I have a lookuptable I use for a cutting plane, which is set up and
> displaying correctly.
> Concerning the contour filter I did nothing with lookup tables. Just the
> code below.
> Do I have to use one?
>
> Am 15.03.2010 13:38, schrieb Sebastien Jourdain:
>
> Are you using the same lookuptable for all the outputs ? Did you set the
> range properly to that lookuptable and mapper ?
>
> On Mon, Mar 15, 2010 at 7:14 AM, Sebastian Gatzka <
> sebastian.gatzka at stud.tu-darmstadt.de> wrote:
>
>>  No, still blue ...
>>
>> Am 15.03.2010 11:41, schrieb David E DeMarle:
>>
>> scalarIsoSurface->ComputeScalarsOn();
>>
>> On Mon, Mar 15, 2010 at 4:55 AM, Sebastian Gatzka<sebastian.gatzka at stud.tu-darmstadt.de> <sebastian.gatzka at stud.tu-darmstadt.de> wrote:
>>
>>
>>  Hello world.
>>
>> After I have finally found a way of making the vtkContourFilter work I'm now
>> facing how to color them.
>> I want to color them according to the value they are having.
>> Example: The cutting plane displays the "right" color for the scalar data,
>> but the iso-surfaces (contours) are colored identically.
>> Have a look at the screenshot in the attachment.
>>
>> So, what do I have to do, to set up the right coloring?
>>
>> Here is the code I am using to create the contours:
>>
>> vtkContourFilter *scalarIsoSurface = vtkContourFilter::New();
>> scalarIsoSurface->SetInput(sGridPointData->GetOutput());
>> scalarIsoSurface->SetValue(0,3);
>> scalarIsoSurface->SetValue(1,5);
>> scalarIsoSurface->Update();
>>
>> vtkPolyDataNormals *sGridPolyDataNormal = vtkPolyDataNormals::New();
>> sGridPolyDataNormal->SetInput(scalarIsoSurface->GetOutput());
>> sGridPolyDataNormal->Update();
>>
>> vtkPolyDataMapper *scalarIsoSurfaceMapper = vtkPolyDataMapper::New();
>> scalarIsoSurfaceMapper->SetInput(sGridPolyDataNormal->GetOutput());
>> scalarIsoSurfaceMapper->Update();
>>
>> vtkActor *scalarIsoSurfaceActor = vtkActor::New();
>> scalarIsoSurfaceActor->SetMapper(scalarIsoSurfaceMapper);
>>
>> Have a nice day.
>> Sebastian
>>
>>
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