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From: CXT105@psuvm.psu.edu (Christopher Tate)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Problems with SetLineWidth
Message-ID: <90316.173043CXT105@psuvm.psu.edu>
Date: 12 Nov 90 22:30:43 GMT
References: <1990Nov5.203354.14090@wam.umd.edu> <11125@goofy.Apple.COM>
 <1990Nov10.213656.2583@fennel.cc.uwa.oz.au>
Organization: Penn State University
Lines: 38

In article <1990Nov10.213656.2583@fennel.cc.uwa.oz.au>,
a_dent@fennel.cc.uwa.oz.au asks:

>If I want to change line width to half point and back should I use:
>
>SetLineWidth(half)
>draw my line
>Pensize(1,1)
>
>OR
>
>SetLineWidth(half)
>draw my line
>SetLineWidth(one)
>Pensize(1,1)
>
>OR
>
>SetLineWidth(half)
>draw my line
>SetLineWidth(one)

As I recall, what you really want to do is:

     SetLineWidth(half)
     {draw your lines here}
     SetLineWidth(two)       <-- note!

SetLineWidth() just multiplies the current pen dimensions by the fraction
that you pass in the arguments.  So, when you want to restore the pen
size that you were using before the original SetLineWidth(), you call it
again with the numerator and denominator flipped.

-------
Christopher Tate                       |
cxt105@psuvm.bitnet                    | nobody, not even the rain,
cxt105@psuvm.psu.edu                   |   has such small hands.
 ..!psuvax1!psuvm.bitnet!cxt105        |