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MathGroup Archive 1995

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BUGGY Graphics

  • To: mathgroup at
  • Subject: [mg1184] BUGGY Graphics
  • From: Xah Y Lee <xyl10060 at>
  • Date: Mon, 22 May 1995 01:02:42 -0400

Hi, ya all.

Cameron Smith and Nancy Blachman reported several 
graphics bugs in their book, here I'll add one more.

When a circle is way larger then the PlotRange, there is a problem.
The one below will beep. The error dialog
says something about a PostScript error. 

                Circle[{0,0},20], PlotRange->{{0,6},{-1,1}}

This problem is especially annoying. I am writing a program that will 
plot osculating circles of a curve, this bug made it impossible.


FullOptions do not return explicit 
value for some options. 
(this is mentioned in Smith/Blachman book, p.292)

ParametricPlot[{t, Sin@t}, {t, 0, 6 Pi},
        Background->GrayLevel[.8], Frame->True

FullOptions[%, { ColorOutput, DefaultColor,PlotRegion }]

 Xah Lee      74631.731 at
 Quote of the day:
 Read this sentence and follow its instruction until
 it tells you to do what you are doing.

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