[vtkusers] How to update coordinates of one vtkPlane if coordinates of another vtkPlane change?

[Bill Lorensen]

And here is an example that uses ModifiedEvent...
http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/BillboardTextActor3D


On Wed, Mar 8, 2017 at 9:51 AM, Cory Quammen <cory.quammen at kitware.com> wrote:
> See http://www.vtk.org/Wiki/VTK/Examples/Cxx/Interaction/ClientData
> for an example of how to set up an event observer. This is the pattern
> you can follow to have plane B observe modified events from plane A.
> You'll want B to observe vtkCommand::ModifiedEvent instead of
> vtkCommand::KeyPressEvent.
>
> HTH,
> Cory
>
> On Wed, Mar 8, 2017 at 9:27 AM, Sophonet <vtk12af6bc42 at kant.sophonet.de> wrote:
>> Hi list,
>>
>> in my VTK app, I need two vtkPlanes (A and B) for different purposes.
>> However, their information depends on each other. If coordinates of plane A
>> change, I would like to automatically B recalculate its parameters, based on
>> indirectly derived information from A.
>>
>> Currently, I am manually triggering the update of B when I change the
>> information of A, but for that "hack", I have to provide an interface
>> through a few software layers, which I would like to avoid.
>>
>> I have not found a way to listen to "modify" - events of A, since it seems
>> that there is no "modified()" - command.
>>
>> Any suggestions?
>>
>> Thanks,
>>
>>      Sophonet
>>
>>
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>
>
> --
> Cory Quammen
> Staff R&D Engineer
> Kitware, Inc.
> _______________________________________________
> Powered by www.kitware.com
>
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>
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