[vtkusers] Implementing a EdgePicker ...

[Will Schroeder]

Here are some hints:
- use vtkExtractEdges to extract the edges of your data
- take these edges and render them via a separate actor
- make all actors PickableOff except the edge actor
- then use the standard pickers to pick the edges

Will

At 03:50 PM 1/30/2003 -0500, Sebastien Auclair wrote:
>Greeding !
>
>We'd like to be able to pick our objects only by their edge (lines).
>
>We though of implementing a specific picker but we're a bit lost amount all
>the different funtions that we can use to achieve our goal.
>We don't want to re-invent the weel and someone must have had the same need
>...
>
>Any suggestions would be appriciated !!
>
>Thanks in advance !
>
>_________________________________
>Seb
>
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