[vtkusers] Using two different colors on top/bottom cell sides

[Bill Lorensen]

Great. So I think you need two datasets. Sounds like a cool application.




On Tue, Dec 10, 2013 at 3:46 PM, Alexandre DARRAU <alex.darrau at gmail.com>wrote:

> Sure. What I am currently doing is generating the geometrical model of my
> thermal system.  I used an UnstructuredGrid object to perform it. Each cell
> corresponds to a thermal node with material and thermal coating properties.
>
> Most often, the thermal coating is the same on the front face and the back
> face of a cell. Now, i would like to take into account that a thermal
> coating (represented with red color) can be applied on the front face,
> another one the backface (blue color) and visualize it on VTK (You can
> image a Satellite wall with MLI on a side and Carbon on the other side).
>
> Thank you for your help and your answer
>
>
>
> 2013/12/10 Bill Lorensen <bill.lorensen at gmail.com>
>
>> VTK cannot do this with one dataset. You can specify a backface property,
>> but that would only permit one color for the front and back of the dataset.
>>
>> It seems you want a different colormap for each side of the data. The
>> only way to do this would be to have two separte datasets.
>>
>> The image you posted is very simple. Can you describe your real-world
>> application?
>>
>>
>>
>> On Tue, Dec 10, 2013 at 3:14 PM, Alexandre DARRAU <alex.darrau at gmail.com>wrote:
>>
>>> This is the first time i am trying to insert a picture, i hope it will
>>> work:
>>>
>>> [image: Images intégrées 1]
>>>
>>>
>>> Does this image help ?
>>>
>>> Thank you
>>>
>>>
>>> 2013/12/10 Bill Lorensen <bill.lorensen at gmail.com>
>>>
>>>> Can you show an image that illustrates what you want?
>>>>
>>>>
>>>> On Tue, Dec 10, 2013 at 2:42 PM, Alexandre DARRAU <
>>>> alex.darrau at gmail.com> wrote:
>>>> > Thanks for your reply. This is not what i mean. I would like to color
>>>> the
>>>> > cell front side in red and the cell back side in blue, is it possible
>>>> ?
>>>> >
>>>> >
>>>> > 2013/12/10 Bill Lorensen <bill.lorensen at gmail.com>
>>>> >>
>>>> >> If you mean a band of red and a band of blue (not a conitnuous
>>>> >> transition), then split the each cell into two cells, color one red,
>>>> >> the other blue.
>>>> >>
>>>> >>
>>>> >>
>>>> >> On Tue, Dec 10, 2013 at 1:28 PM, daralex <alex.darrau at gmail.com>
>>>> wrote:
>>>> >> > Dear all,
>>>> >> >
>>>> >> > I would have a question regarding VTK.
>>>> >> > I have an unstructured grid where i am trying to plot a temperature
>>>> >> > distribution on. I manage to get one color per cell suing lookup
>>>> table
>>>> >> > but i
>>>> >> > would like to color the top of one cell in blue and the bottom in
>>>> red,
>>>> >> > do
>>>> >> > you know if it is possible using VTK ? Can you explain me how to
>>>> deal
>>>> >> > with
>>>> >> > it ?
>>>> >> >
>>>> >> > Thank you in advance for your answer
>>>> >> >
>>>> >> > Alex
>>>> >> >
>>>> >> >
>>>> >> >
>>>> >> > --
>>>> >> > View this message in context:
>>>> >> >
>>>> http://vtk.1045678.n5.nabble.com/Using-two-different-colors-on-top-bottom-cell-sides-tp5724946.html
>>>> >> > Sent from the VTK - Users mailing list archive at Nabble.com.
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>>>> >>
>>>> >>
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>>>>
>>>>
>>>>
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>>>
>>>
>>
>>
>> --
>> Unpaid intern in BillsBasement at noware dot com
>>
>
>


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