[Paraview] one 3d model transparent color + one 3d model normal color for vrml
Chris
chris.schweighofer at gmx.net
Tue Jun 12 15:50:26 EDT 2012
Hello Sebastien,
what do you mean with edit a text file? Can you give an example?
Thx,
Chris
> Can't you just edit a text file ? (meaning replacing the opacity
> inside the VRML file itself by something else ?)
>
> Otherwise, you will have to edit the vtkVRMLExporter.cxx file... And
> find why the opacity is not written properly...
>
> Seb
>
> On Tue, Jun 12, 2012 at 3:11 PM, Chris <chris.schweighofer at gmx.net> wrote:
>> At the moment I installed it new and tried it on windows and mac. It´s not working. I also think there is a bug. VTK only saved the data by using a appended dataset. Anyway do you have probably an idea, how I can remove the bug?
>>
>> Thx,
>> Chris
>>
>>> VTK format is not storing rendering information, but only data. In
>>> VRML it is different. I believe it's a bug of the VRML exporter of VTK
>>> (or it was not a feature of that exporter).
>>>
>>> Therefore, the only solution that I see is to either fix the bug or
>>> change the opacity attribute in the VRML file manually.
>>>
>>> Seb
>>>
>>> On Tue, Jun 12, 2012 at 1:33 PM, Chris <chris.schweighofer at gmx.net> wrote:
>>>> 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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>>>>>>
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