[vtkusers] Adding a vtkPoint

[Jerome Velut]

Hi,

One typical reason could be that your polydata is rebuild by the 
algorithm that produced it. Thus even if you added a point to the output 
of a filter, the next execution of the filter will not take into account 
this addition.

Some solutions:
- write a filter that adds a point to a polydata input
- copy (deepcopy) the output of the filter into a new polydata and 
modify the copy
- build a polydata with one point and use a vtkAppendPolyData filter
- ...

A minimal piece of code that reproduces this issue would be useful for 
understanding...

HTH
Jerome

Le 09/07/2012 02:00, Jack Leigh a écrit :
> What do I need to do to update a pipeline after I have added a new 
> point to vtkPoints?
>
> I have a callback which should add a new point and update the renderer.
> I have tried Modified() on the PolyData and Render() on the RenderWindow.
>
> What am I missing?
>
> Thanks,
> Jack
> _______________________________________________
> 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 VTK FAQ at: 
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers


-- 
Jérôme Velut
R&D Engineer
Kitware SAS
26 rue Louis Guérin
69100 Villeurbanne, France
F: +33 (0)4.37.45.04.15
http://www.kitware.fr