[Paraview] PV4.1, Custom Dock Widget: How to automatically add a glyph3d filter after loading data ?

[Utkarsh Ayachit]

It's under "ParaVIewCore/ServerManager/Rendering/" in the ParaVIew source[1]

Utkarsh

[1] https://github.com/Kitware/ParaView/blob/master/ParaViewCore/ServerManager/Rendering/vtkSMParaViewPipelineControllerWithRendering.h

On Tue, Sep 16, 2014 at 8:11 AM, Florian Hoffmann
<florian.hoffmann at inutech.de> wrote:
> Dear Utkarsh,
>
> thank you very much for your fast reply and the provided example.
> I compiled PV4.2RC2 from source and just tried to compile your example.
> Nevertheless I receive a compilation error complaining that the file
>
> vtkSMParaViewPipelineControllerWithRendering.h
>
> cannot be found.
> Where is this file supposed to be residing ?
>
> Thank you.
>
> Best regards,
>
> Florian
>
>
>
> Am 15.09.2014 um 17:16 schrieb Utkarsh Ayachit
> <utkarsh.ayachit at kitware.com>:
>
> Attached is an example based on ParaView 4.2-RC1. As it shows, you
> cannot directly use VTK objects to create visualization pipelines in
> ParaView. While this can surely be done with 4.1 or earlier, I'd
> suggest basing off 4.2, if possible since it simplified a lot of this
> initialization.
>
> Utkarsh
>
> On Mon, Sep 15, 2014 at 10:23 AM, Florian Hoffmann
> <florian.hoffmann at inutech.de> wrote:
>
> I would like to automatically add a glyph filter and render the correctly
> scaled spheres after the user has opened a file in my custom dock widget.
> I created a DockWidget using the example in /examples/Plugins/DockWidget.
> When pressing a button a specific file is being opened for the user by the
> following calls:
>
> void on_button_clicked()
> {
>        QString xdmfFile = "C:\\..\\unknown_case.xdmf";
>
>    QStringList visuFiles;
>
>    visuFiles.append(xdmfFile);
>
>    pqPipelineSource* pqPlinesource =
> pqLoadDataReaction::loadData(visuFiles);
>
>    pqPlinesource->updatePipeline();
>
>   // TODO:
>   // add spherical glyph for loaded polyData
>   // scale spherical glyphs by a scalar attribute/property
>   // render glyphs
>
> }
>
> I would like to include that the code automatically adds spherical glyphs
> and renders them for the data just loaded.
>
> I tried the following code but I am not sure if it works
>
>                vtkSMProxy *myProxy = pqPlinesource->getProxy();
>
>        vtkObjectBase *myObject = myProxy->GetClientSideObject();
>
>        vtkAlgorithm *myvtkAlgo = vtkAlgorithm::SafeDownCast(myObject);
>
>        vtkGlyph3D *myspheres =  vtkGlyph3D::New();
>
>        myspheres->SetSourceConnection(myvtkAlgo->GetOutputPort());
>
>
>
> In case this is supposed to work, how can I now update the pipeline and
> render the spheres using C++ PV core functionality ? (The user should also
> see the result in the pipeline browser dock of the GUI).
>
> In case my approach is totally wrong, what would be the right way of
> handling this situation ?
>
> Thank you.
>
> Best regards,
>
> Florian
>
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> <DockWidget.tar.gz>
>
>
>