drawCircle
drawing back-end for objects derived from the _Circle class
Methods defined in drawCircle
send current position of the circle's defining attributes - its center,radius,
plane's unit normal, and plane's distance from origin - to render object,
and render in accordance with style attribute
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 triangles to PovRay SDL
See
the source
for more information.