I want to elaborate on winding count issues for segments to the left of the
clip for both winding modes.
All curves have the property that the winding count of any sample point to the right of them is identical to the winding
count of a line from their starting point to their ending point.
Hi Jim,
I am answering your first message:
Area is overkill for this as it tries to find exact intersection points of
arbitrary geometry. You simply need something that will trace accurately
around the outside of a clip to get from an exit point back to an entry
point. That is a much simpler
Hi Laurent,
Area is overkill for this as it tries to find exact intersection points of arbitrary geometry. You simply need
something that will trace accurately around the outside of a clip to get from an exit point back to an entry point.
That is a much simpler operation.
The performance
Jim,
FYI I am working on a more general clipper for filled shapes (only non zero
winding rule) that ignores useless segments on left / right sides but
leaves the path closed for filling primitives.
It is more tricky... to handle turning points (corners) but I think it
could be applied later to
