Hi Andrzej, On Thu, Jan 28, 2016 at 8:25 AM, Andrzej Peczak <apec...@ara.co.uk> wrote:
> Hi Yumin, > > I used your snippet and it is working fine. I also tried to change the > properties of the upstream filter in addition to the active one but it put > me into trouble. I am modifying the properties with the following code > where I want to change the visibility, surface representation and input > array of the upstream. When I execute the code the widgets get changed but > nothing happens in the view with regards to the changes I made to the > upstream, that is the upstream object stays invisible. To make the object > visible I have to manually click on the active object. > You may be missing a render call. Try adding the following at the end myView->render(); > After that the upstream object becomes visible but then its colour mapping > does not change in accordance with the input array I set to the upstream. > You have to also set the same "LookupTable" to the upstream representation. > The other issue I have is when I delete my object from the pipeline after > modifying the lookup table. Paraview displays "vtkSMPVRepresentationProxy > (0x2f6c8c0): Failed to determine the LookupTable being used." message. > > Which object? how did you delete it? Normally this message means you have an empty "LookupTable". HTH Yumin vtkSMProxy* repProxy = repr->getProxy(); > const char * arrayName = vtkSMPropertyHelper(repProxy, > "ColorArrayName").GetInputArrayNameToProcess(); > int association = vtkSMPropertyHelper(repProxy, > "ColorArrayName").GetInputArrayAssociation(); > > pqDataRepresentation * uRepr = > repr->getRepresentationForUpstreamSource(); > vtkSMProxy* uRepProxy = uRepr->getProxy(); > vtkSMPropertyHelper( uRepProxy, "ColorArrayName" > ).SetInputArrayToProcess( association, arrayName ); > vtkSMPropertyHelper( uRepProxy, "ColorArrayName" ).Set( arrayName > ); > vtkSMPropertyHelper( uRepProxy, "Visibility" ).Set( 1 ); > vtkSMPropertyHelper( uRepProxy, "Representation" ).Set( "Surface" > ); > > repProxy->UpdateVTKObjects(); > uRepProxy->UpdateVTKObjects(); > > > Andrzej > > ------------------------------ > *From:* Yumin Yuan [yumin.y...@kitware.com] > *Sent:* 27 January 2016 14:41 > *To:* Andrzej Peczak > *Cc:* paraview@paraview.org > *Subject:* Re: [Paraview] Changing values of property panel > > Hi Andrzej, > > The representation has its own SM proxy, > > vtkSMProxy* repProxy = repr->getProxy(); > vtkSMPropertyHelper(repProxy, "Representation").Set("Surface With > Edges"); > vtkSMPropertyHelper(repProxy, "LineWidth").Set(2); > > HTH, > Yumin > > > On Wed, Jan 27, 2016 at 7:36 AM, Andrzej Peczak <apec...@ara.co.uk> wrote: > >> >> Hi >> >> I am trying to find a way to modify property values of a filter. I >> figured out how to change values of the lookup table through its proxy >> after which the changes are visible in the colour map editor panel widgets. >> >> I can do it with the following snippet code, however I have not found yet >> the way to change properties of the filter property panel. I need to >> change the view representation of the filter to Surface With Edges and the >> line width. Where do I acquire required proxy objects from ? >> >> pqPipelineRepresentation* repr = qobject_cast< >> pqPipelineRepresentation* >( >> pqActiveObjects::instance().activeRepresentation() ); >> if ( repr ) { >> vtkSMProxy * lutProxy = >> repr->getLookupTable()->getProxy(); >> if ( lutProxy ) { >> vtkSMPropertyHelper( lutProxy, >> "NumberOfTableValues" ).Set( this->scalars().count() - 1 ); >> lutProxy->UpdateVTKObjects(); >> } >> } >> >> Andrzej >> >> ********************************************************************** >> Please consider the environment. 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_______________________________________________ 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 Search the list archives at: http://markmail.org/search/?q=ParaView Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview