[vtkusers] how to change the color of single picked cell

[Nigel Nunn]

Hi Tracy,

> My application is to display a 3D model with a group of PolyData
> cells. This model is represented by an actor. "vtkCellPicker" is
> used to select a specific cell. My question is how to change the
> colour of the single selected cell without any influence to the
> rest when the cursor is over this cell.

How about a 1-cell "selection" actor -- use the vertices of the
selected cell to define one cell, add a mapper/actor pipeline,
and set the appropriate color.  Then change or hide this actor
as the mouse moves.

Nigel


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