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RE: Showing thick lines - a problem?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg39501] RE: [mg39484] Showing thick lines - a problem?
  • From: "David Park" <djmp at earthlink.net>
  • Date: Thu, 20 Feb 2003 05:13:32 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Uri,

Add the option PlotRange -> All. Otherwise Mathematica shows what it thinks
is "the most interesting" part of the plot, which might not be what you
intend.

David Park
djmp at earthlink.net
http://home.earthlink.net/~djmp/

From: Uri Zwick [mailto:zwick at tau.ac.il]
To: mathgroup at smc.vnet.net

Hi,

The following draws two thick blue lines, one of length 1
and the other of length "len" using an image size of "size":

sl[len_,size_] :=
  Show[ Graphics[ {RGBColor[0,0,1],Thickness[0.01],Line[{{0,0},{len,0}}],
        Line[{{0,1},{1,1}}]}],ImageSize->size,AspectRatio->1/10]

On my machine:

sl[1/1000,450]

Shows a long thick line and
a very short thick line underneath it.

sl[1/1000,500]

Only the long line is visible, even tough the image is larger!

sl[1/1000,600]

The short line reappears.

The problem disappears when "Thickness[0.01]" is removed.

Do others have the same problem?

I would expect larger images to show more, and not less, details.
Also, it seems to me that thick lines should be visible whenever
thin lines are.

Uri




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