zdrawCircle
drawing back-end for objects derived from the _zCircle class
Methods defined in zdrawCircle
send current position of circle's center position and radius based of the circle's
defining Hermitian matrix
the circle object is represented either by a convex polygon or as curve -
we take advantage of the cvisual frame object, assigning the drawing primitives to one
frame, so that further manipulation is of the frame, not the primtives themselves
export the scene's circles to PovRay SDL
See
the source
for more information.