[vtkusers] Emulating Paraview 5's Interactive Select Points in VTK

[Utkarsh Ayachit]

ParaView does use a cache for selecting, It capture the full frame buffer
in the vtkHardwareSelector and then reuse that as the mouse moves around.

Utkarsh

On Fri, Jul 15, 2016 at 7:01 PM, Evan Kao <tossin at gmail.com> wrote:

> Hello all,
>
> I'm trying to emulate Paraview 5's Interactive Select Points feature in
> VTK by constantly monitoring the 'MouseMoveEvent' and obtaining the closest
> point on the desired actor.  However, I run into some severe "jitteriness"
> as seen in this video <https://www.youtube.com/watch?v=iXAhbjBCve4> (the
> marker is represented by a green sphere).  In constrast, the marker in
> Interactive Select Points mode in Paraview is predictable and steady.
>
> What can I do to better replicate Paraview?
>
> Thanks,
> Evan Kao
>
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