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55 lines
1.2 KiB
Plaintext
55 lines
1.2 KiB
Plaintext
## Escher's Circle Limit III
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## Instructions:
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## load this;
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## load Escher's Circle Limit III in the texture mode;
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## "scale/rotate the texture" until centers of octagons coincide with center of Escher's squares;
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## you may "select master triangles" and pick triangles closer to the center;
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## enable the texture
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h2.
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angleunit(2*pi/3)
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distunit(edge(8,3))
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unittile(1,1,1,1,1,1,1,1) # YG
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unittile(1,1,1,1,1,1,1,1) # YB
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unittile(1,1,1,1,1,1,1,1) # YR
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unittile(1,1,1,1,1,1,1,1) # RG
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unittile(1,1,1,1,1,1,1,1) # RB
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unittile(1,1,1,1,1,1,1,1) # GB
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c(0,0,3,1,0)
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c(0,1,5,2,0)
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c(0,2,1,3,0)
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c(0,3,2,2,0)
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c(1,0,5,1,0)
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c(1,1,4,0,0)
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c(1,2,2,3,0)
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c(2,0,4,3,0)
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c(2,1,3,2,0)
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c(3,0,5,3,0)
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c(3,3,4,2,0)
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c(4,1,5,0,0)
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c(0,4,3,5,0)
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c(0,5,5,6,0)
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c(0,6,1,7,0)
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c(0,7,2,6,0)
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c(1,4,5,5,0)
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c(1,5,4,4,0)
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c(1,6,2,7,0)
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c(2,4,4,7,0)
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c(2,5,3,6,0)
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c(3,4,5,7,0)
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c(3,7,4,6,0)
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c(4,5,5,4,0)
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# these lines repeat connections from (0123) to (4567), and also tell the texture mode that four triangles should be repeated twice
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# (put them after specifying connections); however, it works better without them
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# repeat(0, 2)
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# repeat(1, 2)
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# repeat(2, 2)
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# repeat(3, 2)
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# repeat(4, 2)
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# repeat(5, 2)
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