[Paraview] How to pick a point and get it in a plugin?

[burlen]

If you make your filter have two inputs, you might be able to use 
"select points on" and the "extract selection filter" as the second 
input. That will let you get point actually on the surface.


Fred Fred wrote:
> Sorry to put this message up but I suspect there is a way to get the 
> coords or point id of a point picked with "select point on" 
> functionnality, so please may someone give me some hints?
>
> ------------------------------------------------------------------------
> From: stan1313 at hotmail.fr
> To: paraview at paraview.org
> Date: Sat, 16 Jan 2010 19:29:09 +0100
> Subject: [Paraview] How to pick a point and get it in a plugin?
>
> I would like to use the picking functionnality, ie pick a point of a 
> surface, and get it in my plugin, for instance to compute a streamline.
> StreamTracer offers this functionnality but it actually does not work 
> because the pick point is not necessary a point of the dataset, as 
> with the picking functionnality when "select points on" is selected. 
> Thus, in case of a surface, the point does not lie on the surface ad 
> no streamline is computed (I mean with StreamTracer).
> So my question is: is it possible to pick a point of a surface with 
> the "select points on" functionnality and get it back in my filter, 
> connected to the SetOrigin(double [3]) function for instance?
>
>
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