NetNews Usenet Archive 1992 #27/NN_1992_27.iso/spool/comp/lang/postscri/5562

Internet Message Format | 1992-11-17 | 1.5 KB

Path: sparky!uunet!charon.amdahl.com!pacbell.com!decwrl!spool.mu.edu!sdd.hp.com!cs.utexas.edu!swrinde!gatech!rutgers!uwvax!astroatc!vidiot!brown
From: [e-mail] (Vidiot)
Newsgroups: comp.lang.postscript
Subject: Re: Text that erases background
Message-ID: <[e-mail]>
Date: 17 Nov 92 02:49:53 GMT
References: <lg7203INNs5k@cronkite> <[e-mail]>
Reply-To: [e-mail] (Vidiot)
Organization: Vidiot's Hangout
Lines: 23

In article <[e-mail]> [e-mail] (Bill Pringle) writes:
<What you want to do is to draw a thick white line over the area where
<the string will be written.  Set the line width to the point size,
<then use setgray to create a white line.  You can use stringwidth to
<determine how long to make the line.  Something like:
<
<    % assume you are at the position to draw the text
<    % and the text string is on top of the stack
<    gsave
<        12 setlinewidth    % assume 10 or 12 pt. font
<        0 setgray    % drawing a white line
<        dup stringwidth pop    % get width to draw
<        0 exch rlineto stroke    % draw the line
<    grestore

You are forgetting that the width of the line is determined from the center
of the line, not the bottom edge.  You will have to move the start of the line
to the center of the text box.
--
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