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(...) I'm not sure if I understand this properly - if the second "test" point is down the line where the cylinder joint (between two rects) would be if it was attached to a cylinder, won't that work? It'll mean the same line may occasionally be (...) (23 years ago, 5-May-02, to lugnet.cad.dev)
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| | Re: Type 5 lines at the edge of primitives
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(...) Hmm... Good point; I hadn't thought of that. But I'll have to check to be sure (it's hard to visualize). The way I currently have my sphere, the joins between the segments are always drawn either twice or not at all. If this does work, though, (...) (23 years ago, 5-May-02, to lugnet.cad.dev)
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| | Re: Type 5 lines at the edge of primitives
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(...) There was a discussion on this very issue in cad.dat.parts about 2 months ago. This one includes a link to a picture. (URL) don't think it was completely resolved though, as fixing it probably requires changing quite a few primitives and/or (...) (23 years ago, 5-May-02, to lugnet.cad.dev)
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| | Re: Type 5 lines at the edge of primitives
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(...) Well, I did as you suggested, and it solved the problem without introducing any new ones. I was also able to then visualize why it worked on a continuing sphere once I had it working. --Travis Cobbs (tcobbs@REMOVE.halibut.com) (23 years ago, 5-May-02, to lugnet.cad.dev)
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| | Re: Type 5 lines at the edge of primitives
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(...) Cool! Glad I could help! And after looking at the discussion Don linked to, I'm wondering if a similar thing could be done for type 5s on cylinder edges - make the second test point on the plane where a rectangle would be if it was butted up (...) (23 years ago, 6-May-02, to lugnet.cad.dev)
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| | Re: Type 5 lines at the edge of primitives
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(...) Yeah; I actually posted a response to that thread suggesting just this. (...) Well, it's only a problem if you don't add another type 5 line to the edge. And I agree that it's probably rare. --Travis Cobbs (23 years ago, 6-May-02, to lugnet.cad.dev)
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| | Re: Type 5 lines at the edge of primitives
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(...) Wow! This is so cool! These cooperating type 5 control points give us both first order continuity between the cylinder and the tangent plane, AND 2nd order continuity between adjacent cylinder parts. All with just a few small changes to a (...) (23 years ago, 6-May-02, to lugnet.cad.dev, lugnet.cad.dat.parts)
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| | Re: Type 5 lines at the edge of primitives [DAT]
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(...) Here is a model that demonstrates some of the problems with placing type 5 lines at the edge of the cylinder primitive. 0 1 16 0 0 0 10 0 0 0 10 0 0 0 10 1-4cyli.dat 1 16 0 0 20 10 0 0 0 10 0 0 0 0 -10 1-4cyli.dat 1 16 -20 0 20 10 0 0 0 10 0 0 (...) (23 years ago, 7-May-02, to lugnet.cad.dev)
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| | Re: Type 5 lines at the edge of primitives [DAT]
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(...) lines (...) And then there is matching a sphere with a torus Which is demonstrated with this file. 0 1 16 0 0 0 78 0 0 0 -78 0 0 0 78 1-8sphe.dat 1 16 0 0 0 90 0 0 0 90 0 0 0 90 t04i1333.dat 0 (23 years ago, 7-May-02, to lugnet.cad.dev)
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| | Re: Type 5 lines at the edge of primitives
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(...) I'm not following the problem with this one. Then again, I'm not sure where lines are supposed to be, and where they aren't--the construct is a bit abstract. (...) Hmm. The only way to avoid this problem is to not include the edge lines in the (...) (23 years ago, 7-May-02, to lugnet.cad.dev)
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| | Re: Type 5 lines at the edge of primitives [DAT]
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(...) There are too many numbers in the 2nd cylinder line. Cut and paste error? Give this one a spin. I think what he's trying to show is the type 5 line where the 2 quarter cylinders meet. 0 1 16 0 0 0 10 0 0 0 10 0 0 0 10 1-4cyli.dat 1 16 0 0 20 0 (...) (23 years ago, 7-May-02, to lugnet.cad.dev)
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