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

Tue Jun 12 17:02:14 EDT 2012

What program would you recommend to adopt vrml 3D models?

Thx,
Chris 
Am 12.06.2012 um 22:51 schrieb Sebastien Jourdain:

> ParaView do not read or write any opacity information in VRML.
> 
> On Tue, Jun 12, 2012 at 4:50 PM, Chris <chris.schweighofer at gmx.net> wrote:
>> Hello Sebastien,
>> 
>> I used ParaView 3.8.1 and ParaView 3.14.1.
>> 
>> Furthermore I uploaded the vrml dataset here:
>> http://www.bestaltmed.at/slicer/Model22.vrml.zip
>> 
>> Thx,
>> Chris
>> 
>> Which viewer did you used ?
>> 
>> On Tue, Jun 12, 2012 at 4:35 PM, Chris <chris.schweighofer at gmx.net> wrote:
>> 
>> Okay I tried it and it does not work. :-( I tried it with transparency 0.1,
>> 0.5 and 0.9.
>> 
>> Maybe I also have to change another parameter?
>> 
>> 
>> Thx,
>> 
>> Chris
>> 
>> 
>> vi, vim, emacs, textedit, wordpad...
>> 
>> 
>> On Tue, Jun 12, 2012 at 4:14 PM, Chris <chris.schweighofer at gmx.net> wrote:
>> 
>> Yeah thanks that makes sense. :) Just one more question. Which program can I
>> use to open the VRML script?
>> 
>> 
>> 
>> 
>> If you open the VRML file that you generated you will see inside
>> 
>> something like that:
>> 
>> 
>> material Material {
>> 
>>   ambientIntensity 0
>> 
>>   diffuseColor 1 1 1
>> 
>>   specularColor 0 0 0
>> 
>>   shininess 0.0078125
>> 
>>   transparency 0
>> 
>> }
>> 
>> 
>> just replace "transparency 0" by "transparency 0.5"
>> 
>> 
>> Does that make sense to you now ?
>> 
>> 
>> Seb
>> 
>> 
>> On Tue, Jun 12, 2012 at 3:50 PM, Chris <chris.schweighofer at gmx.net> wrote:
>> 
>> 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
>> 
>> 
>> 
>> _______________________________________________
>> 
>> 
>> 
>> 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
>> 
>> 
>> 
>> 
>> Follow this link to subscribe/unsubscribe:
>> 
>> 
>> 
>> http://www.paraview.org/mailman/listinfo/paraview
>> 
>> 
>> 
>> 
>> 
>> _______________________________________________
>> 
>> 
>> 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
>> 
>> 
>> 
>> Follow this link to subscribe/unsubscribe:
>> 
>> 
>> http://www.paraview.org/mailman/listinfo/paraview
>> 
>> 
>> 
>> _______________________________________________
>> 
>> 
>> 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
>> 
>> 
>> 
>> Follow this link to subscribe/unsubscribe:
>> 
>> 
>> http://www.paraview.org/mailman/listinfo/paraview
>> 
>> 
>> _______________________________________________
>> 
>> 
>> 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
>> 
>> 
>> 
>> Follow this link to subscribe/unsubscribe:
>> 
>> 
>> http://www.paraview.org/mailman/listinfo/paraview
>> 
>> 
>> 
>> 
>> _______________________________________________
>> 
>> 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
>> 
>> 
>> Follow this link to subscribe/unsubscribe:
>> 
>> http://www.paraview.org/mailman/listinfo/paraview
>> 
>> 
>> 
>> _______________________________________________
>> 
>> 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
>> 
>> 
>> Follow this link to subscribe/unsubscribe:
>> 
>> http://www.paraview.org/mailman/listinfo/paraview
>> 
>> 
>> _______________________________________________
>> 
>> 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
>> 
>> 
>> Follow this link to subscribe/unsubscribe:
>> 
>> http://www.paraview.org/mailman/listinfo/paraview
>> 
>> 
>> 
>> _______________________________________________
>> 
>> 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
>> 
>> 
>> Follow this link to subscribe/unsubscribe:
>> 
>> http://www.paraview.org/mailman/listinfo/paraview
>> 
>> 
>> 
>> _______________________________________________
>> 
>> 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
>> 
>> 
>> Follow this link to subscribe/unsubscribe:
>> 
>> http://www.paraview.org/mailman/listinfo/paraview
>> 
>> 