 | | LDraw.org's March 2008 Model, Scene and Part of the Month Winners
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| Congratulations to the winners of the March 2008 Model/Scene/Part Of The Month (MOTM/SOTM/POTM) contests: (URL) POTM - Best Part, Propeller 8 Blade 5 Diameter by Philippe Hurbain (Philo) and LEGO Universe Team> (URL) POTM – Most Desired Part, (...) (19 years ago, 1-Apr-08, to lugnet.cad, lugnet.cad.dev.org.ldraw, lugnet.announce, FTX)
| | | | | Re: New primitives?
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| (...) Andrew you are completely right. I was kind of obsessed by the missing triangle so I didn't thought well... I'm a little bit less convinced by the tang primitive that need several adaptation triangles (is it really better than to match (...) (19 years ago, 31-Mar-08, to lugnet.cad)
| | | | | Re: New primitives?
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| (...) I wasn't aware of the tang primitive, and I had forgotten about the chrd primitive. Going from the chrd primitive to the proposed truncated disc requires the addition of one triangle, and the total number of triangles after adding that one is (...) (19 years ago, 30-Mar-08, to lugnet.cad, FTX)
| | | | | Re: New primitives?
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| (...) There are already circle chord and tangent primitives on the parts tracker. You would just need to add a couple of triangles to get the ones you're proposing. See: (2 URLs) (19 years ago, 30-Mar-08, to lugnet.cad, FTX)
| | | | | Re: New primitives?
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| (...) Mathematics to use 1-8tdisk is easy, divide the width by 0.707 and height by 0.293 (1-(sqrt(2)/2) to get size of the tdisk. Move the center accordingly. Yes I have used that trick several times, using regular disc/ndis primitives, inlining (...) (19 years ago, 27-Mar-08, to lugnet.cad)
| | | | | Re: New primitives?
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| (...) I agree with you in all points. But if I see that also you are thinking that capped cylinders are useful maybe there is somebody out who can write a prog for that. I have tried something similar in the past and was not very happy with the (...) (19 years ago, 26-Mar-08, to lugnet.cad, FTX)
| | | | | Re: New primitives?
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| (...) I think I can follow your thoughts. Have you tried that (48/1-8tdisc) already in some items with different curvatures? If yes and you have found out that this can also be used without dramatically mathematics (I prefer to use triangles so I (...) (19 years ago, 26-Mar-08, to lugnet.cad)
| | | | | Re: New primitives?
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| (...) I would use the cylinder as model, with the cap at Y=0 on top and an edge at bottom. But I somehow agree with Steve Bliss that it may be overkill if we decline capped cylinder in all angles... Philo (19 years ago, 26-Mar-08, to lugnet.cad, FTX)
| | | | | Re: New primitives?
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| (...) A few examples where I would use the 48\1-8tdisc (to use Travis naming suggestion): 58135s01 (rounded sides), 464s01, 54096, 61068 For the 48\1-8tndis (less useful I agree), an example would be 3455. In many case you can stretch a bit the (...) (19 years ago, 26-Mar-08, to lugnet.cad)
| | | | | Re: New primitives?
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| (...) One concern about capped cylinders is that they would lead more multiples of cylinders - single-capped cylinders, double-capped cylinders, 1/4 capped cylinders, 2/4 capped cylinders, Hi-res 3/8 double-capped cylinders, etc. etc. And every (...) (19 years ago, 26-Mar-08, to lugnet.cad, FTX)
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