[Paraview] Get value of a vtkintarray object by the filed name

[Shayan Nikoohemat]

Hi David,

Thanks for the reply, it works now, but I can't see the original RGB colors
in renderview. In color map editor, I changed the settings to RGB but still
the color scale is scaled based on color pallet. Is there any other
settings that I missed?

Thanks.

On Tue, Aug 8, 2017 at 1:46 PM, David E DeMarle <dave.demarle at kitware.com>
wrote:

> Try:
>
> inRArray = ids.GetPointData().GetArray("R")
> inGArray = ids.GetPointData().GetArray("G")
> inBArray = ids.GetPointData().GetArray("B")  for x in range(0, ids.GetNumberOfPoints()):
>   rF = inRArray.GetValue(x)
>   gF = inGArray.GetValue(x)
>   bF = inBArray.GetValue(x)
>
>
> David E DeMarle
> Kitware, Inc.
> Principal Engineer
> 21 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-881-4909
>
> On Tue, Aug 8, 2017 at 7:08 AM, Shayan Nikoohemat <
> shayan.nikoohemat at gmail.com> wrote:
>
>> I have a Paraview programmable filter written in python, that I am
>> running on a table of points to assign RGB colors as UnsignedCharArray.
>> I'm just stuck in one part of the code to get the value of R, G, B fields
>> in the range. Here is the table example:
>>
>> [image: Inline image 1]
>>
>> ids = self.GetInput()
>> ods = self.GetOutput()
>>
>> ocolors = vtk.vtkUnsignedCharArray()
>> ocolors.SetName("colors")
>> ocolors.SetNumberOfComponents(3)
>> ocolors.SetNumberOfTuples(ids.GetNumberOfPoints())
>>
>> inArray = ids.GetPointData().GetArray(0)for x in range(0, ids.GetNumberOfPoints()):
>>   rF = inArray.GetValue(x) # here I need something like GetValue(x, "R")
>>   gF = inArray.GetValue(x) # here I need something like GetValue(x, "G")
>>   bF = inArray.GetValue(x) # here I need something like GetValue(x, "B")
>>
>>   ocolors.SetTuple3(x, rF,gF,bF)
>>
>> ods.GetPointData().AddArray(ocolors)
>>
>> Can anyone help me to fix this.
>>
>> The code source is from an old post from 2012.
>>
>> Thanks.
>>
>> Shayan
>>
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the ParaView Wiki at:
>> http://paraview.org/Wiki/ParaView
>>
>> Search the list archives at: http://markmail.org/search/?q=ParaView
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/paraview
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://public.kitware.com/pipermail/paraview/attachments/20170808/daad95cd/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 11808 bytes
Desc: not available
URL: <http://public.kitware.com/pipermail/paraview/attachments/20170808/daad95cd/attachment.png>