Opening this to track an issue reported on
the PDL mailing lists. Comparing the new
pnpoly routine against the existing
polyfill/polyfillv routines showed that the
pixels affected/selected are not quite
right in that some of the pixels on the
edge of the polygon are being included.
See the report and discussion at:
The +-1 pixel difference is small but if you
need exact results, use pnpoly over the
polyfill variants. NOTE: pnpoly is slower
and more memory intensive that the polyfill
routines which have less temps and are
all PP implemented.