Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site noscvax.UUCP Path: utzoo!watmath!clyde!burl!hou3c!hocda!houxm!ihnp4!zehntel!dual!amd!decwrl!decvax!ittvax!dcdwest!sdcsvax!noscvax!thrapp From: thrapp@noscvax.UUCP Newsgroups: net.graphics Subject: SunCore question Message-ID: <615@noscvax.UUCP> Date: Wed, 12-Sep-84 09:28:52 EDT Article-I.D.: noscvax.615 Posted: Wed Sep 12 09:28:52 1984 Date-Received: Tue, 25-Sep-84 01:41:19 EDT Organization: Naval Ocean Systems Center Lines: 30 - 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