 | | Very small triangle and a quad that thinks its a tri —William Howard
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| | | Whilst working out the non-right-angled cylinder intersection sub-parts for the Boat Rigging pieces I have run into two related problems 1) I have a triangle A-B-C that is so tiny that L3P reports it as co-linear and L3Lab doesn't render it (it (...) (20 years ago, 7-Jan-05, to lugnet.cad.dev)
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| | | | | Re: Very small triangle and a quad that thinks its a tri —Ross Crawford
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| | | | (...) I'm guessing this is a limitation of the accuracy of the l3p -check, so probably ignorable. Does the -dist option affect this test too, or just the coplanar quad test? Maybe there could be another option in l3p to adjust the accuracy of the (...) (20 years ago, 8-Jan-05, to lugnet.cad.dev)
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| | | | | | Re: Very small triangle and a quad that thinks its a tri —Lars C. Hassing
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| | | | | (...) I think so too. William, could you please e-mail me the actual coordinates of A, B, etc., and perhaps the whole file. (...) Good question! (...) The colinearity test currently has a hardcoded threshold of 0.01. The colinearity test is carried (...) (20 years ago, 8-Jan-05, to lugnet.cad.dev)
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| | | | | | | Re: Very small triangle and a quad that thinks its a tri —William Howard
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| | | | | | (...) I'll send you the whole file (its not complete yet), but the values for the tri are A (0.989107, -1, 0) B (0.997785, -0.98677, 0.06652) C (0.997785, -1, 0.06652) William (20 years ago, 8-Jan-05, to lugnet.cad.dev)
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| | | | | | | | Re: Very small triangle and a quad that thinks its a tri —Lars C. Hassing
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| | | | | | (...) That's a small triangle! Side lengths: 0.0684 0.0671 0.0132 The reason it doesn't show in L3Lab is that you have color coded it in your file! Back in 1998 PovRay would crash if it was given a triangle with collinear vertices and a texture (...) (20 years ago, 14-Jan-05, to lugnet.cad.dev)
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| | | | | | | | Re: Very small triangle and a quad that thinks its a tri —William Howard
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| | | | | | (...) Silly question time. Where can I download the latest versions from. My usual place (the zip files on your web site) are still dated sometime in 2001! thanks William (20 years ago, 14-Jan-05, to lugnet.cad.dev)
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| | | | | | RE: *** SPAM *** Re: Very small triangle and a quad that thinks its a tri —William Howard
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| | | | (...) Only at 5dp (ie -det/-dist of 0.00001), but then as the values are only to 5dp this is not surprising! The co-linear vertices are reported for any -det/dist values from 1 to 0.00001 William (20 years ago, 8-Jan-05, to lugnet.cad.dev)
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