[vtkusers] Color actor based on scalars of points on mesh (not vertices)

Thu Feb 16 10:23:19 EST 2017

Can you describe what you expect to see?

On Feb 16, 2017 10:05 AM, "Tharun" <tharun160190 at gmail.com> wrote:

> Thanks for the heads up.
>
> But i have  0 ~ many points in each triangle (cell) not just one and a
> scalar is associated with each point.
>
> Really appreciate the follow up.
>
> Regards,
> P Tharun Kumar
>
> On Thu, Feb 16, 2017 at 11:50 PM, Cory Quammen-2 [via VTK] <[hidden email]
> <http:///user/SendEmail.jtp?type=node&node=5742209&i=0>> wrote:
>
>> I see, thanks for the explanation. In VTK, we call that kind of data
>> cell-associated data, or just cell data.
>>
>> In the vtkMapper you use, you'll want to call
>>
>> mapper->SetScalarModeToUseCellData();
>>
>> It may be helpful to consult this example:
>> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/Assig
>> nColorsFromLUT
>>
>> - Cory
>>
>> On Thu, Feb 16, 2017 at 9:40 AM, Tharun <[hidden email]
>> <http:///user/SendEmail.jtp?type=node&node=5742208&i=0>> wrote:
>>
>> > sorry for not being clear.
>> >
>> > The polydata consists of triangles. I mean those points are inside
>> triangles
>> > of mesh not the vertices of triangles.
>> >
>> > Hope I am clear.
>> >
>> > Regards,
>> > P Tharun Kumar
>> >
>> > On Thu, Feb 16, 2017 at 11:04 PM, Cory Quammen-2 [via VTK] <[hidden
>> email]>
>> > wrote:
>>
>> >>
>> >> Okay, I'm curious. What is the difference between points on the mesh
>> >> and vertices?
>> >>
>> >> On Wed, Feb 15, 2017 at 9:28 PM, Tharun <[hidden email]> wrote:
>> >>
>> >> > Thank you for the prompt reply.
>> >> >
>> >> > Unfortunately no. I have scalar values associated with points(not
>> >> > vertices)
>> >> > on the mesh. Where as in your example, color or scalar value is
>> >> > associated
>> >> > with vertices.
>> >> >
>> >> >
>> >> >
>> >> > --
>> >> > View this message in context:
>> >> > http://vtk.1045678.n5.nabble.com/Color-actor-based-on-scalar
>> s-of-points-on-mesh-not-vertices-tp5742197p5742199.html
>> >> > Sent from the VTK - Users mailing list archive at Nabble.com.
>> >> > _______________________________________________
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>> > --
>> > Cory Quammen
>> > Staff R&D Engineer
>> > Kitware, Inc.
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>> > ________________________________
>> > View this message in context: Re: Color actor based on scalars of
>> points on
>> > mesh (not vertices)
>> >
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>>
>> >
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>
>
> --
> Cory Quammen
> Staff R&D Engineer
> Kitware, Inc.
> _______________________________________________
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> View this message in context: Re: Color actor based on scalars of points
> on mesh (not vertices)
> <http://vtk.1045678.n5.nabble.com/Color-actor-based-on-scalars-of-points-on-mesh-not-vertices-tp5742197p5742209.html>
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