thrapp@noscvax.UUCP (09/12/84)
-
I am a new user of SunCore on 100U Sun workstations and am wondering
if anyone can help with this question:
I have not yet succeeded in "picking" some arcs I form by
consecutive small lines. Even if I make the line_width so
large that the cursor can be essentially completely enveloped
by the lines in the arc, the pick device will not detect it.
I can easily pick filled polygons and can pick up figures with
longer (>0.25 inch) lines only with some difficulty. I cannot
put a "background" polygon around these arcs because there can
be an arbitrary number of them very close together, even overlapping
and I must use NORMAL rasterop or else the individual arc lines
overwrite each other, resulting in a washed-out arc.
Why can't these arcs be picked and what can I do to make them
detectable?
Any help with this question will be greatly appreciated.
Gary R. Thrapp
Naval Ocean Systems Center
San Diego, CA 92109
(619) 225-7196
..!sdcsvax!noscvax!thrapp