48245 and 92586


Re: 48245 and 92586
#26
Max Martin Richter Wrote:What a long thread...
Yup Wink
Actually this is a direct result of rounding in primitives!
The most outer point of the torus lies at x=1+1/14=1.0714285714285714285714285714286 but primitives are rounded to 4dp so you get 1.0714. Once scaled by 24.5, the error is -0.0007. So you get 26.2493 instead of 26.25. But this error is less than 1/1000 ldu, completely invisible. And even smooth shading in LDview accounts for some rounding errors between polygon vertices and condlines endpoints. That's also the reason why in Edger2 has a "precision" option to allow some discrepancy between matching coordinates. This precision defaults to 0.001, but it may be changed if necessary.
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Messages In This Thread
48245 and 92586 - by Max Martin Richter - 2012-11-07, 11:09
Re: 48245 and 92586 - by Stan Isachenko - 2012-11-07, 12:02
Re: 48245 and 92586 - by Max Martin Richter - 2012-11-07, 12:19
Re: 48245 and 92586 - by Philippe Hurbain - 2012-11-07, 13:38
Re: 48245 and 92586 - by Stan Isachenko - 2012-11-07, 13:50
Re: 48245 and 92586 - by Philippe Hurbain - 2012-11-07, 13:53
Re: 48245 and 92586 - by Philippe Hurbain - 2012-11-07, 16:38
Re: 48245 and 92586 - by Max Martin Richter - 2012-11-07, 19:07
Re: 48245 and 92586 - by Max Martin Richter - 2012-11-11, 22:27
Re: 48245 and 92586 - by Philippe Hurbain - 2012-11-12, 15:32
Re: 48245 and 92586 - by Max Martin Richter - 2012-11-12, 17:51
Re: 48245 and 92586 - by Michael Heidemann - 2012-11-12, 19:31
Re: 48245 and 92586 - by Philippe Hurbain - 2012-11-12, 19:42
Re: 48245 and 92586 - by Philippe Hurbain - 2012-11-12, 20:17
Re: 48245 and 92586 - by Max Martin Richter - 2012-11-12, 20:46
Re: 48245 and 92586 - by Philippe Hurbain - 2012-11-13, 6:08
Re: 48245 and 92586 - by Max Martin Richter - 2012-11-13, 16:23
Re: 48245 and 92586 - by Philippe Hurbain - 2012-11-13, 16:38
Re: 48245 and 92586 - by Max Martin Richter - 2012-11-13, 16:49
Re: 48245 and 92586 - by Philippe Hurbain - 2012-11-13, 18:42
Re: 48245 and 92586 - by Max Martin Richter - 2012-11-13, 19:00
Re: 48245 and 92586 - by Philippe Hurbain - 2012-11-13, 19:34
Re: 48245 and 92586 - by Max Martin Richter - 2012-11-13, 20:29
Re: 48245 and 92586 - by Philippe Hurbain - 2012-11-13, 20:35
Re: 48245 and 92586 - by Max Martin Richter - 2012-11-13, 20:42
Re: 48245 and 92586 - by Philippe Hurbain - 2012-11-14, 9:09
Re: 48245 and 92586 - by Max Martin Richter - 2012-11-14, 10:21

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