I would like to draw some of my wireframe graphics based on the view direction. For example, when drawing a cylinder I would like to draw the silhouette edges. I am deriving my own class from AIS_Shape, and I'm planning on overriding the Compute() method. However, based on the parameters being passed to Compute(), I don't see any way to find the view direction.
I would also like to draw some graphics based on the current scale of the view window, so I'd like to find that too.
Any help would be appreciated.