[vtkusers] Select a area of a image 2D with the mouse.

[oliwe]

Hello  	 carmencr,

that's the way i do that in a 3D Volume - i'm not sure if there is an easier
way ...
	
1. Picking Points with vtkPicker
2. Creating a Polygon with vtkPolygon
3. Running through the bounding-box of the Polygon and collecting all points
inside the polygon

hope this helps

regards
Oliver 


carmencr wrote:
> 
> Hi user of vtk,
> 
> I would like to ask if someone can help me. I want to know how can I
> select a area of a image with the mouse. After that I want to be able to
> access to the pixels that are in the selected area.
> 
> I hope that someone can help me.
> 
> thanks
> 

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