File:4crossings-square.png
From Knot Atlas
4crossings-square.png (600 × 600 pixels, file size: 567 B, MIME type: image/png)
Self-made, declared to be in public domain, generated from the following PostScript source code:
%! 1 setgray 30 setlinewidth/X{.5 add 120 mul exch .5 add 120 mul exch}def/l{X lineto}def 1 0 X moveto 4 0 l 4 4 l 2 4 l 2 1 l 0 1 l 0 2 l 3 2 l 3 3 l 1 3 l 1 0 l closepath gsave 0 setgray 60 setlinewidth stroke grestore stroke/r{120 mul exch 120 mul exch rlineto}def 60 setlinewidth 0 setgray 1.5 3 X moveto 1 0 r stroke .5 2 X moveto 1 0 r stroke 2 1.5 X moveto 0 1 r stroke 1 .5 X moveto 0 1 r stroke 1 setgray 30 setlinewidth 1.48 3 X moveto 1.04 0 r stroke .48 2 X moveto 1.04 0 r stroke 2 1.48 X moveto 0 1.04 r stroke 1 .48 X moveto 0 1.04 r stroke showpage %EOF
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 07:27, 10 February 2010 | 600 × 600 (567 B) | AnonMoos (Talk | contribs) | add color | |
09:24, 4 February 2010 | 600 × 600 (365 B) | AnonMoos (Talk | contribs) | Self-made, declared to be in public domain, generated from the following PostScript source code: <pre>%! 1 setgray 30 setlinewidth/X{.5 add 120 mul exch .5 add 120 mul exch}def/l{X lineto}def 1 0 X moveto 4 0 l 4 4 l 2 4 l 2 1 l 0 1 l 0 2 l 3 2 l 3 3 l 1 |
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