[vtk-developers] vtkImagePlaneWidget fixes before release

[Will Schroeder]

Hi Dean-

Great job communicating.

At 12:16 PM 4/18/2002 -0700, Dean Inglis wrote:
>   I have a problem with the cross
>hairs though: to determine which side of the vtkPlaneSource to plot the
>cross hairs on I take the dot product with the plane normal and the current
>camera's direction of projection. If the plane is zoomed in too closely this
>does not work: either the cross hairs are not plotted or they are plotted on
>the flip side.

To make sure the lines draw on top of the plane, invoke the method 
vtkMapper::SetResolveCoincidentTopologyToPolygonOffset(). You may have to 
change the order in which the line actor is added relative to the plane 
(I'm not sure about this).

Will