[Paraview] one 3d model transparent color + one 3d model normal color for vrml

Tue Jun 12 11:45:40 EDT 2012

Hello Chris,

I don't understand how you can't choose any color that you want.
Basically on my Mac, I have access to the 16 Billions choices... Do
you need more ?
For the opacity, scroll down in the display tab and change the opacity slider.

For the opacity in VRML, I don't know, but I think that should be the
case ? If not, you can simply fix the generated VRML.

Seb

On Tue, Jun 12, 2012 at 11:38 AM, Chris <chris.schweighofer at gmx.net> wrote:
> Hello Sebastien,
>
> thx for your help. You are right it works great with a solid color. I only would like to have a bigger selection for them. Cann´t I take a color table? Or can I import colors?
> I tried to add a scalar but the scalar disappears  after the export.
> Is there a opportunity to save the opacity as well in the vrml file?
>
> Have a good day,
> Chris
>
>> What you try to do is the most complex solution, in the case you
>> really need a single mesh node inside your VRML file.
>> If you don't need that, then the actions are load the files, set
>> colors, export and done.
>>
>> Seb
>>
>> Action 1: In the menu: File > Open + In the "Properties" tab click on "Apply
>> Action 2: To change the color, go in the "Display" tab and click on
>> "Color by" = "Solid Color", the "Set Solid Color..." => The color
>> apply to the object that is selected in the pipeline browser.
>> Action 3: In the menu: File > Export + choose the VRML format and you
>> should be done...
>>
>> On Mon, Jun 11, 2012 at 6:31 PM, Chris <chris.schweighofer at gmx.net> wrote:
>>> Thx, I think it would be great in the way you described it. But I am still a
>>> beginner in Paraview and therefore it sounds a bit complicated for me.
>>>
>>> I added the color filter, selected color by scalars and pressed the button
>>> edit color map. There I tried to adjust range, scalars, lookup tables (color
>>> space) and the opacity.
>>> Anyway the scalar does not change and still stays the same. I tried it now
>>> 50 times.
>>>
>>> I would be really happy, if you could tell me what I did wrong?
>>>
>>> Chris
>>>
>>>
>>>
>>>
>>>
>>> What I try to say, is if you load all the files in ParaView and export
>>> the scene as VRML you will have a single VRML file the way you want.
>>> So I'm not sure why this solution doesn't fit your needs.
>>>
>>> Seb
>>>
>>> On Mon, Jun 11, 2012 at 1:51 PM, Christoph Schweigi
>>> <chris.schweighofer at gmx.net> wrote:
>>>
>>> Thx, I want to fuse two structures of radiologic datasets. Both are from
>>> brain vessels. The embeded model is the fluidic pattern (solid color) and
>>> the other outer model is the morphology (transparent with less opacity) one.
>>>
>>>
>>> Thx,
>>>
>>> Chris
>>>
>>> Ps: I am currently texting from my phone but if u want I can give u
>>> afterwards a link with the datasets?
>>>
>>>
>>>
>>>
>>> Am 11.06.2012 um 19:37 schrieb Sebastien Jourdain
>>> <sebastien.jourdain at kitware.com>:
>>>
>>>
>>> That's the tricker part, because your scalar + the lookup table will
>>>
>>> determine the color.
>>>
>>> That's also the reason why I asked you why you just export your scene
>>>
>>> in VRML with the correct settings color+opacity of all you objects ?
>>>
>>>
>>> Do you need them to be defined as a single mesh inside the VRML ?
>>>
>>>
>>> Seb
>>>
>>>
>>> On Mon, Jun 11, 2012 at 1:29 PM, Christoph Schweigi
>>>
>>> <chris.schweighofer at gmx.net> wrote:
>>>
>>> Hello Sebastien,
>>>
>>>
>>> Thx for the answer, but how could I add a color to each model if I merge it?
>>> Furthermore how could I make one model transparent and one a solid color?
>>>
>>>
>>> Thx, Chris
>>>
>>>
>>> Von meinem iPhone gesendet
>>>
>>>
>>> Am 11.06.2012 um 19:21 schrieb Sebastien Jourdain
>>> <sebastien.jourdain at kitware.com>:
>>>
>>>
>>> It seems that on of your dataset is a multi block. So before appending
>>>
>>> it you should merge those block in order to make a single dataset.
>>>
>>> Then you should be able to append it.
>>>
>>>
>>> On Mon, Jun 11, 2012 at 10:50 AM, Chris <chris.schweighofer at gmx.net> wrote:
>>>
>>>
>>>
>>>
>>>
>>> Hello Sebastien,
>>>
>>>
>>> thx for your answer. I tried to do so and tried to save it in a vrml.
>>>
>>> However I have troubles if I import the geometric structure from vtk with
>>>
>>> two colors or if I want to create a geometric structure with two colors.
>>>
>>>
>>> The colors stay always the same and if I want to do a appended geometry I
>>>
>>> only get an error message:
>>>
>>>
>>> ERROR: In
>>>
>>> /Users/partyd/Kitware/ParaView-3.8/src/VTK/Filtering/vtkDemandDrivenPipeline.cxx,
>>>
>>> line 827
>>>
>>> vtkCompositeDataPipeline (0x30cacf10): Input for connection index 1 on input
>>>
>>> port index 0 for algorithm vtkAppendPolyData(0x3022e260) is of type
>>>
>>> vtkMultiBlockDataSet, but a vtkPolyData is required.
>>>
>>>
>>>
>>> Please can you explain me why that happens?
>>>
>>>
>>> Thx,
>>>
>>> Chris
>>>
>>>
>>>
>>>
>>> Am 11.06.2012 um 05:42 schrieb Sebastien Jourdain:
>>>
>>>
>>> Hi Chris,
>>>
>>>
>>> If the point is to have the VRML to contains both, by loading the 2
>>>
>>> objects in the scene, exporting the scene will do the trick.
>>>
>>>
>>> If not that will be trickier but still doable. You will need to
>>>
>>> generate a given scalar across the 2 datasets and merge the geometry.
>>>
>>> Then use your custom scalar to apply the right color and opacity
>>>
>>> across the whole geometry.
>>>
>>>
>>> Seb
>>>
>>>
>>> On Sun, Jun 10, 2012 at 1:17 PM, Chris <chris.schweighofer at gmx.net> wrote:
>>>
>>>
>>> Hello people,
>>>
>>>
>>>
>>> I would like to know if it is possible to fuse two 3d models, one with a
>>>
>>> solid and one with a transparent color. This dataset should be afterwards
>>>
>>> saved within a vrml file for a rapid prototype printer.
>>>
>>>
>>>
>>> Is this possible?
>>>
>>>
>>> How?
>>>
>>>
>>>
>>> Thx,
>>>
>>>
>>> Chris
>>>
>>>
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>
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