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

Chris chris.schweighofer at gmx.net
Tue Jun 12 13:33:44 EDT 2012 

Hello Sebastien,

thank you very much, I just realized that I can change the color if I click on the solid button.  For the style options like opacity I tried it to but it does not work to save these parameters neither with vtk nor with vrml files.
Is there a trick how I can save them?
What further possibility exists to modify simple the vrml file for opacity?
 
Thx,
Chris
> 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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