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From: thrapp@noscvax.UUCP (Gary R. Thrapp)
Newsgroups: net.works
Subject: Sun graphics
Message-ID: <614@noscvax.UUCP>
Date: Fri, 7-Sep-84 16:23:44 EDT
Article-I.D.: noscvax.614
Posted: Fri Sep  7 16:23:44 1984
Date-Received: Fri, 14-Sep-84 02:59:41 EDT
Organization: Naval Ocean Systems Center
Lines: 31

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I am a new user of 100U Sun workstations and am wondering if anyone
has answers to the following two questions:

1.  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?

2.  Has anyone succeeded in getting some sort of video output
    from the monochrome monitor to drive a large screen display?


Any help with these questions will be greatly appreciated.


Gary R. Thrapp
Naval Ocean Systems Center
San Diego, CA  92109
(619) 225-7196

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