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12 lines
334 B
Plaintext
12 lines
334 B
Plaintext
2dbsplinecurve b1 3 5 0 4 1 1 2 1 3 1 4 4 0 0 0.8 1 0.5 0.6 2 1 0.5 2 2 1 3 1.5 1 4 1.5 1 5 2 1
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2dcvalue b1 2.0 x y dx dy
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set delta 0.01
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set yvalue [dval y]
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repeat 100 {
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cmovetangent b1 2.0 x $yvalue dx dy 1
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set yvalue [expr $yvalue + $delta ]
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repaint }
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copy b1 result
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set length 6.9832866524628034
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