[Paraview-developers] GUI not updating for OpenFOAM reader in v4.0.1

[Paul Edwards]

Utkarsh,

I've looked into this a bit more.  The OpenFOAM reader has a
vtkDataArraySelection that is used to store the patches.  This list is
updated in RequestInformation and the list will changed depending on
whether the "Case Type" is "Decomposed" or "Reconstructed" (combobox
in the GUI).  Once decomposed is chosen and apply is clicked it will
rerun the RequestInformation  and the vtkDataArraySelection will be
updated.  The difference is that before this would also update the GUI
but it is not happening now.

Ideally it would be best to make a call to RequestInformation as soon
as the "Case Type" is chosen and update the GUI - is there a way to do
this from the XML?  Alternatively, is there a way to just get it to
update after "Apply" is clicked in the XML (as it used to)?  The only
other solution I can see is to create a custom object panel (where
either of the above options wouldn't be too difficult to
implement....)

What do you think?

Thanks,
Paul

On 11 July 2013 10:17, Paul Edwards <paul.m.edwards at gmail.com> wrote:
> Utkarsh,
>
> Any decomposed OpenFOAM case where the mesh has been generated with
> the hex mesher will be able to reproduce this.  I have sent you a link
> to motorBike example from OpenFOAM which I have decomposed and meshed
> in case you do not have any examples to hand.  Here are the steps to
> reproduce:
>
> * Open the motorBike.foam in ParaView
> * Set "Case Type" to "Decomposed Case"
> [ Now you will be able to see 6 items in "Mesh Regions" but these are
> not the surfaces on the motorBike ]
> * Click "Apply"
> [ Previously you would now see all the motorBike surfaces in addition
> to the original ones in the "Mesh Regions" ]
>
> To make all the surfaces appear, go to the Python Shell and type:
>
>     s = GetActiveSource
>     s.MeshRegions = []
>
> Thanks,
> Paul
>
> On 10 July 2013 17:51, Utkarsh Ayachit <utkarsh.ayachit at kitware.com> wrote:
>> Paul,
>>
>> How do I try to reproduce this? Do you have a sample dataset?
>>
>> Utkarsh
>>
>> On Wed, Jul 10, 2013 at 12:05 PM, Paul Edwards <paul.m.edwards at gmail.com> wrote:
>>> Btw the patch list isn't empty - it just used to update once "Apply"
>>> had been clicked and now it doesn't (for some reason it doesn't have
>>> all the patches until RequestData has been called...).  Does anyone
>>> have any hints where to look in order to fix this?
>>>
>>> Thanks,
>>> Paul
>>>
>>> On 9 July 2013 18:51, Paul Edwards <paul.m.edwards at gmail.com> wrote:
>>>> Hi,
>>>>
>>>> In the latest version of ParaView I do not see all the patches for a
>>>> decomposed OpenFOAM solution.  This used to work in previous versions
>>>> although I am not sure why it used to get called - I can't see any
>>>> obvious changes to the OpenFOAM reader.  Has anything changed with the
>>>> way the ArraySelectionDomains work?:
>>>>
>>>>       <StringVectorProperty information_only="1"
>>>>                             name="PatchArrayInfo">
>>>>         <ArraySelectionInformationHelper attribute_name="Patch" />
>>>>       </StringVectorProperty>
>>>>       <StringVectorProperty animateable="0"
>>>>                             command="SetPatchArrayStatus"
>>>>                             element_types="2 0"
>>>>                             information_property="PatchArrayInfo"
>>>>                             name="MeshRegions"
>>>>                             number_of_elements="0"
>>>>                             number_of_elements_per_command="2"
>>>>                             repeat_command="1">
>>>>         <ArraySelectionDomain name="array_list">
>>>>           <RequiredProperties>
>>>>             <Property function="ArrayList"
>>>>                       name="PatchArrayInfo" />
>>>>           </RequiredProperties>
>>>>         </ArraySelectionDomain>
>>>>       </StringVectorProperty>
>>>>
>>>> A workaround for the moment is to use the python shell - I can see the
>>>> properties by doing:
>>>>
>>>>     s = GetActiveSource()
>>>>     s.GetProperty('PatchArrayInfo')
>>>>
>>>> And, I can even get the GUI to update with:
>>>>
>>>>     s.MeshRegions = []
>>>>
>>>> Any ideas how I can fix this?
>>>>
>>>> Thanks,
>>>> Paul
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