[Paraview] How to visualize multipart/multiblock models

[Utkarsh Ayachit]

Jacques,

Is this functionality for a custom application developed over ParaView
or for a plugin extending standard ParaView?

Utkarsh

On Fri, Dec 19, 2008 at 5:00 AM, Jacques Papper <jpapper at ara.co.uk> wrote:
> Hi All,
>
> I have been thinking of a potential improvement for visualization of
> multipart models in ParaView.
> I would really like to develop the following functionality :
>
> Have support for multiple views where you can :
> -> Select one or several blocks and move them to another view (maybe with a
> keyboard shortcut like alt+numberofView)
> -> flip between the views by just typing a number on the keyboard
> -> Have a system where blocks can only be present in one view at a time
>
> Would the structure of ParaView enable me to do this ? If so - where would I
> start ? I know that the pipeline and the extract selections offer somewhat a
> similar capability, but there are still a few things missing ?
>
> Jacques
>
> -----Original Message-----
> From: paraview-bounces at paraview.org [mailto:paraview-bounces at paraview.org]
> On Behalf Of Berk Geveci
> Sent: 18 December 2008 14:23
> To: M. Nawijn
> Cc: paraview at paraview.org
> Subject: Re: [Paraview] How to visualize multipart/multiblock models
>
> Hi Marco,
>
> Which version of ParaView are you using? In 3.4, you can create a vtm file
> that points to the individual vtu files. You can then color the blocks
> separately using the vtkCompositeIndex array (just color by it). You can
> control the color of each block by editing the color map.
> Alternatively, you can add a cell-centered, 3 component, unsigned char array
> (RGB) for each block to the file and then color by that array (make sure to
> turn off the Map Scalar option).
>
> As for turning on/off individual block, I am afraid you have to use the
> Extract Block filter to achieve that. I hope that we will have that option
> in the Display page in the future but it is not currently supported.
>
> What I described here should also work with Xdmf.
>
> -berk
>
> On Wed, Dec 17, 2008 at 11:12 AM, M. Nawijn <nawijn at gmail.com> wrote:
>> Hello,
>>
>> I am trying to find a way to subdivide a structural analysis model in
>> several parts in such a way that I can post-process the results in
> Paraview.
>> The primary objective for me is to be able to hide and show different
>> parts of the structure. The model itself is not too large (say 50.000
>> cells). A bonus for me would be that I can assign a different color
>> (or different properties in general) to each of the parts.
>>
>> I have tried a few things with Paraview:
>>     1. Create a set of individual .VTU files and combine them in a
>> .PVD file. This works very nice for building result sequences of the
>> complete model.
>>     2. Create a set of individual .VTU files and combine them in a
>> .PVM file. This works in the sense that I can import a complete model
>> build up from several pieces, but I cannot assign colors to each of
>> the parts and are unable to hide and show individual parts (tried by
>> using the "extract datasets" filter).
>>     3. Create a XDMF XML file with 2 GRID elements in a single domain.
>> This again allows me to import the model and show hide individual
>> parts. I can still assign only 1 color to the complete model.
>>
>> Is subdivision into multiple showable/hideable parts, including
>> individual color assignment, possible with either XDMF or VTK XML files?
>> If so, can someone post a minimal example?
>>
>> Kind regards,
>>
>> Marco
>>
>>
>>
>>
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>>
>>
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