[Paraview-developers] Is it possible to animate representation properties?

[Utkarsh Ayachit]

Alternatively, there's the "Python Animation Cue". You can pretty much
write any Python script to be called on every timestep and there you
can change/animate any/all properties.

Utkarsh

On Thu, Oct 4, 2012 at 9:50 AM, Biddiscombe, John A. <biddisco at cscs.ch> wrote:
> Cory
>
>
>
> I had a long train ride to experiment with this and managed to get the
> basics working.
>
>
>
> Adding an AddCustomProxy(…) method to pqAnimationViewWidget is all that is
> really necessary to allow you to display the new stuff in the animation
> view. For a simple representation I found that all I had to do was in the
> display panel decorator (in this case for my splotch renderer) add the
> following
>
> //
>
> QWidget *mainWindow = pqCoreUtilities::mainWidget();
>
> pqAnimationViewWidget *pqaw =
> mainWindow->findChild<pqAnimationViewWidget*>("animationView");
>
> pqaw->addCustomProxy("Splotch", reprProxy);
>
>
>
> and hey presto all the stuff appears. Unfortunately, pretty much everything
> appears, but for a quick first go this is enough. What needs to be done is
> to modify some of the more in depth code to only display the properties on
> the proxy that are actually marked as animateable. I didn’t try this yet.
>
>
>
> I had a more specific problem when I wanted to animate properties from a
> proxy that I had generated ‘internally’. We parse XML on the fly and create
> dynamic controls based on messages from a simulation, this meant that when I
> added the proxy I had strange effects. I mention this in case you get
> problems.
>
> 1)      You need to make sure the proxy has a domain. If it’s a double
> (say), then it is sufficient to just make sure you have <DoubleRangeDomain
> name="range"/> and that will do. Otherwise the property doesn’t get updated
> properly (or at all).
>
> 2)      You also need to register your proxy with the proxy manager (and
> thereby produce an associated pqProxy). I wasn’t doing this and when the
> track is created with your own proxy property selected, the track had no
> ‘title’. It turned out that the string generation of the name that appears
> needs to get the pqProxy from the servermangermodel in order to fetch the
> string to show (so sphere1 appears as sphere1 etc etc) and then it adds the
> property label string to it of the one you’re animating . Custom renderers
> just appear as DataRepresentation1…, but I didn’t look into tweaking it yet.
> Anyway, for my custom proxy which is completely fabricated, paraview wasn’t
> happy. It turns out when you call RegisterProxy – the group name you use
> affects how the pqProxy associated with it is generated and I had to fool
> paraview into creating a bare pqProxy (as opposed to a pqTimeKeeper or some
> other specialized type) by using the group “layouts” which is of course
> nonsense, but if you skim through the code in
> Qt\Core\pqStandardServerManagerModelInterface.cxx you’ll see why. I think I
> should fix this to allow a “Custom” group so that I don’t need to lie about
> the real group. Either that or allow some other default of pqProxy rather
> than NULL which is current. If Utkarsh is reading this he’ll no doubt
> comment or suggest a sensible default.
>
> pm->RegisterProxy("layouts", "DsmProxyHelper", this->DsmProxyHelper);
>
> pqServerManagerModel* smmodel =
>
> pqApplicationCore::instance()->getServerManagerModel();
>
> this->pqDsmProxyHelper = smmodel->findItem<pqProxy*>(this->DsmProxyHelper);
>
> and then later …
>
> //
>
> QWidget *mainWindow = pqCoreUtilities::mainWidget();
>
> pqAnimationViewWidget *pqaw =
> mainWindow->findChild<pqAnimationViewWidget*>("animationView");
>
> pqaw->addCustomProxy("DSM", this->DsmProxyHelper);
>
>
>
> To get the pqProxy if you need it in your own code, use the findItem shown
> above. Anyway, for what you want, most of this email is unnecessary and you
> can just to the top bit.
>
>
>
> Hope this helps.
>
>
>
> JB
>
>
>
> diff --git a/Qt/Components/pqAnimationViewWidget.cxx
> b/Qt/Components/pqAnimationViewWidget.cxx
>
> index 8ee9eef..4cca0a2 100644
>
> --- a/Qt/Components/pqAnimationViewWidget.cxx
>
> +++ b/Qt/Components/pqAnimationViewWidget.cxx
>
> @@ -75,6 +75,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
> DAMAGE.
>
> #include "vtkSMPropertyHelper.h"
>
> #include "vtkSMProxy.h"
>
> #include "vtkSMRenderViewProxy.h"
>
> +#include "vtkSMProxyManager.h"
>
>
>
> //-----------------------------------------------------------------------------
>
> class pqAnimationViewWidget::pqInternal
>
> @@ -818,6 +819,16 @@ void pqAnimationViewWidget::setActiveView(pqView* view)
>
> }
>
>
>
> //-----------------------------------------------------------------------------
>
> +void pqAnimationViewWidget::addCustomProxy(const char *name, vtkSMProxy*
> pxy)
>
> +{
>
> +  this->Internal->CreateSource->removeProxy(name);
>
> +  if (pxy && this->Internal->CreateSource->findText(name) == -1)
>
> +    {
>
> +    this->Internal->CreateSource->addProxy(0, name, pxy);
>
> +    }
>
> +}
>
> +
>
> +//-----------------------------------------------------------------------------
>
> void pqAnimationViewWidget::setCurrentSelection(pqPipelineSource* pxy)
>
> {
>
>    if (pxy)
>
> diff --git a/Qt/Components/pqAnimationViewWidget.h
> b/Qt/Components/pqAnimationViewWidget.h
>
> index 0b8f38b..ca5270c 100644
>
> --- a/Qt/Components/pqAnimationViewWidget.h
>
> +++ b/Qt/Components/pqAnimationViewWidget.h
>
> @@ -53,6 +53,7 @@ public:
>
>    pqAnimationViewWidget(QWidget* parent=0);
>
>    virtual ~pqAnimationViewWidget();
>
>
>
> +  void addCustomProxy(const char *name, vtkSMProxy* pxy);
>
> public slots:
>
>
>
>    /// set the scene to view
>
> diff --git a/Utilities/Xdmf2 b/Utilities/Xdmf2
>
> index 616fe9f..4cb22f3 160000
>
> --- a/Utilities/Xdmf2
>
> +++ b/Utilities/Xdmf2
>
> @@ -1 +1 @@
>
> -Subproject commit 616fe9f5525c0a39c215837888ef48269fdb83a6
>
> +Subproject commit 4cb22f3e1f3bfed6e8382f689999030055ada4b3-dirty
>
> diff --git a/VTK b/VTK
>
> index 8b0026d..0429b26 160000
>
> --- a/VTK
>
> +++ b/VTK
>
> @@ -1 +1 @@
>
> -Subproject commit 8b0026d1764edfb8dcd3dda3222abc79f100f652
>
> +Subproject commit 0429b26096df318ca1c58cea239d22daa83ed475
>
>
>
>
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