Hi Cory,
that's fine, I have some experience developing Qt UIs. But there is one
difficulty with ParaView: I couldn't find any examples or documentation how
to extend the existing widgets? Where do I plug in the additional elements,
is it possible in some xml plugin description, or do I have to har
Hi Corinna,
Utkarsh addressed the updating of properties in his earlier response
about the directionality of property changes in ParaView:
"
2. ParaView's properties are not bi-directional. They are only
intended to be set on the UI side and pushed to the VTK side. There
are of course exceptions
Dear Cory,
I wonder, if you still have an idea how to implement a filter that
initializes its properties from upstream objects and updates these
properties when those objects change.
Isn't the whole ParaView designed such that changes are propagated along
the pipeline? Why is it so complicated to r
Dear Cory, dear all,
sorry for not getting back to this topic earlier. Your solution works
perfectly for the described problem. When I create e.g. a SphereSource and
attach the TestProperty filter with its NPoints property, this property is
initialized with the correct number of points in the spher
Corinna,
Looking at the ParaView source code, I believe that vector properties
with information properties must have a domain associated with them.
In your case, you can add an IntRangeDomain with only a minimum
defined:
0 seems like a reasonable minimum in your case.
Keep your informati
Cory, thanks for mentioning the TIFFReader proxy. I tried to modify my
previously attached code such that the NPoints property links to a
NPointsInfo property. Plus, I have removed the call
"this->SetNPoints(nset);" inside vtkTestProperty::RequestData as suggested
by Utkarsh. The NPoints property i
Corinna,
Take a look at the TIFFReader SourceProxy in
ParaViewCore/ServerManager/SMApplication/Resources/readers.xml. It has
a CustomDataSpacing property that enables you to set voxel spacing,
and has an associated information property CustomDataSpacingInfo that
should initially populate the spaci
On Thu, Jul 14, 2016 at 4:40 PM, Utkarsh Ayachit <
utkarsh.ayac...@kitware.com> wrote:
> There are a couple of things wrong with your plugin :).
>
I was expecting this, because I am only starting to learn plugin
programming right now :)
>
> 1. A RequestData() implementation should never change
> I'll check the meaning of MTime.
See the implementation of vtkSetMacro() in vtkSetGet.h. Every time the
value changes, it call this->Modified() which updates the MTime. Since
VTK is a demand-driven pipeline, changes to MTime is what tells the
pipeline that the algorithm has been modified and nee
There are a couple of things wrong with your plugin :).
1. A RequestData() implementation should never change MTime of the
filter. You code call SetNPoints() which changes MTime.
2. ParaView's properties are not bi-directional. They are only
intended to be set on the UI side and pushed to the VTK
Hello,
I would like to work on a filter that updates some of its properties from
the filter input. As a demonstration, I attach a (quite minimal)
"vtkTestProperty" filter algorithm, which takes vtkPolyData input, and
which is supposed to copy input->GetNumberOfPoints() into the filter's
"NPoints" p
11 matches
Mail list logo
