On Mon, 14 Feb 2011 10:40:31 -0800
Steven Parkes <smparkes@...2812...> wrote:
I need to knockout an interior region of this to an alpha of zero.
It's easy to knockout the alpha=1 object with path difference. However, I can't
figure out how to cut a hole in the underlying glow-producing path. It's easy enough
to do the path difference, but this actually cuts a hole in the glow-producing path which
then blurs into the interior, the part I want to be alpha=0.
Draw a large rectangle over your blurred thing which more than covers it, including the
blur. Make a hole in this rectangle where you want the hole in the object, using path
difference. Then select the blurred object and the rectangle with a hole in it, and do
Object -> Clip -> Set.