Parts Primitives : 310


CAD / LDraw Files / Parts / Primitives / 310

"Clusters" of Studs? —Tore Eriksson

Inspired by parts\s\4186a.dat, I would like to see "clusters" of studs, say 6 x 6 and 8 x 8. That would make a lot of part files *much* smaller. Maybe we could call them Stud36.dat and Stud64.dat? /Tore (22 years ago, 18-Oct-02, to lugnet.cad.dat.parts.primitives)

Re: "Clusters" of Studs? —Chris Dee

(...) In principle this sounds OK to me, but I would want to be somewhat restrictive about how many new files we have - 4x4, 6x6, 8x8 sound good combinations. What others? Regarding a naming convention, though, do we know how all renderers recognise (...) (22 years ago, 20-Oct-02, to lugnet.cad.dat.parts.primitives)

Re: "Clusters" of Studs? —Tore Eriksson

(...) I thought of 4x4, too. First I rejected the idea as I thought it would only save 15 lines in a file but then I realized that it can be used more than once in a file. I can't find any other sombinations that I would like to have. Maybe, maybe a (...) (22 years ago, 20-Oct-02, to lugnet.cad.dat.parts.primitives)

Re: "Clusters" of Studs? —Dave Schuler

(...) Hey, thanks for thinking of me! At present, I believe the only "official unofficial" stud primitives for the clone.dat project are studc.dat and stud2cl.dat. I'll have to double-check the studc2z.dat, though. In the interest of diplomacy and (...) (22 years ago, 21-Oct-02, to lugnet.cad.dat.parts.primitives)

Re: "Clusters" of Studs? —Tore Eriksson

(...) Maybe it's better to call the Groups instead of Clusters. The file names would be less confusing that way. /Tore (22 years ago, 21-Oct-02, to lugnet.cad.dat.parts.primitives)

New Primitive: stug8-8.dat - Stud Group 8 x 8 (Was: "Clusters" of Studs?) —Tore Eriksson

0 Stud Group 8 x 8 0 Name: stug8-8.dat 0 Author: Tore Eriksson 0 Unofficial Primitive 1 16 -70 0 -70 1 0 0 0 1 0 0 0 1 stud.dat 1 16 -50 0 -70 1 0 0 0 1 0 0 0 1 stud.dat 1 16 -30 0 -70 1 0 0 0 1 0 0 0 1 stud.dat 1 16 -10 0 -70 1 0 0 0 1 0 0 0 1 (...) (21 years ago, 11-Nov-03, to lugnet.cad.dat.parts.primitives)

New Primitive: stug6-6.dat - Stud Group 6 x 6 —Tore Eriksson

0 Stud Group 6 x 6 0 Name: stug6-6.dat 0 Author: Tore Eriksson 0 Unofficial Primitive 1 16 -50 0 -50 1 0 0 0 1 0 0 0 1 stud.dat 1 16 -30 0 -50 1 0 0 0 1 0 0 0 1 stud.dat 1 16 -10 0 -50 1 0 0 0 1 0 0 0 1 stud.dat 1 16 10 0 -50 1 0 0 0 1 0 0 0 1 (...) (21 years ago, 11-Nov-03, to lugnet.cad.dat.parts.primitives)

New Primitive: stug4-4.dat - Stud Group 4 x 4 —Tore Eriksson

0 Stud Group 4 x 4 0 Name: stug4-4.dat 0 Author: Tore Eriksson 0 Unofficial Primitive 1 16 -30 0 -30 1 0 0 0 1 0 0 0 1 stud.dat 1 16 -10 0 -30 1 0 0 0 1 0 0 0 1 stud.dat 1 16 10 0 -30 1 0 0 0 1 0 0 0 1 stud.dat 1 16 30 0 -30 1 0 0 0 1 0 0 0 1 (...) (21 years ago, 11-Nov-03, to lugnet.cad.dat.parts.primitives)

New Primitive: stug1-8.dat - Stud Group 1 x 8 —Tore Eriksson

0 Stud Group 1 x 8 0 Name: stug1-8.dat 0 Author: Tore Eriksson 0 Unofficial Primitive 1 16 0 0 -70 1 0 0 0 1 0 0 0 1 stud.dat 1 16 0 0 -50 1 0 0 0 1 0 0 0 1 stud.dat 1 16 0 0 -30 1 0 0 0 1 0 0 0 1 stud.dat 1 16 0 0 -10 1 0 0 0 1 0 0 0 1 stud.dat 1 (...) (21 years ago, 11-Nov-03, to lugnet.cad.dat.parts.primitives)

New Primitive: stug8-1.dat - Stud Group 8 x 1 —Tore Eriksson

0 Stud Group 8 x 1 0 Name: stug8-1.dat 0 Author: Tore Eriksson 0 Unofficial Primitive 1 16 -70 0 0 1 0 0 0 1 0 0 0 1 stud.dat 1 16 -50 0 0 1 0 0 0 1 0 0 0 1 stud.dat 1 16 -30 0 0 1 0 0 0 1 0 0 0 1 stud.dat 1 16 -10 0 0 1 0 0 0 1 0 0 0 1 stud.dat 1 (...) (21 years ago, 11-Nov-03, to lugnet.cad.dat.parts.primitives)

Re: New Primitive: stug8-1.dat - Stud Group 8 x 1 —Orion Pobursky

(...) Why stug8-1 and stug1-8? These are the same with the exception of rotation. Why not just have one? -Orion (21 years ago, 11-Nov-03, to lugnet.cad.dat.parts.primitives)

Re: New Primitive: stug8-1.dat - Stud Group 8 x 1 —Tore Eriksson

(...) You can't rotate the 1x8 90 or 270 degrees to get 8x1; stud logo will turn up wrong in hi-q pov renderings. /Tore (21 years ago, 11-Nov-03, to lugnet.cad.dat.parts.primitives)

Re: New Primitive: stug8-1.dat - Stud Group 8 x 1 —Orion Pobursky

(...) Ahh, the old stud logo problem. I won't go there for now. -Orion (21 years ago, 12-Nov-03, to lugnet.cad.dat.parts.primitives)

Updated Part: 700.dat - Brick 10 x 20 —Tore Eriksson

As an example, this part got a third as large as before with the new group primitives. 0 Brick 10 x 20 0 Name: 700.dat 0 Author: Tore Eriksson 0 Unofficial Updated Part 0 2003-11-12 TE Replaced lots of studs with stug primitives 0 2003-11-12 TE BFC (...) (21 years ago, 12-Nov-03, to lugnet.cad.dat.parts.primitives)

Re: Updated Part: 700.dat - Brick 10 x 20 —John Riley

(...) <SNIP> It looks like there could be significant use of stud4 groups as well. I'm also thinking that 1 x n rows of stud2 and stud 3 could be useful. Not as high in demand, but the stud4 groups would be really nice. (The version of 700.dat (...) (21 years ago, 17-Nov-03, to lugnet.cad.dat.parts.primitives)

Re: Updated Part: 700.dat - Brick 10 x 20 —Tore Eriksson

(...) I've been thinking about groups of stud3 and stud4, but found it not too commonly used as the stud.dat. Baseplates for example have no bottom studs. There is also a little problem with the odd numbers - four top studs corresponds to three (...) (21 years ago, 17-Nov-03, to lugnet.cad.dat.parts.primitives)

Re: Updated Part: 700.dat - Brick 10 x 20 —John Riley

(...) Well, that's 3 lines per instance. It takes 3 calls of a group of 4 to get to the same line savings as the group of 8. And 1 x 4 and 2 x 2 groups are common enough to get at least 7 lines saved. In the 700.dat you posted, just using 1 x 4 (...) (21 years ago, 18-Nov-03, to lugnet.cad.dat.parts.primitives)

Re: Updated Part: 700.dat - Brick 10 x 20 —Steve Bliss

(...) One other thought: every time you add a subfile, it takes time for the renderer to render it. So every call to your 4-stud primitive is going to process more slowly than the equivalent 4 lines encoded directly. So if an added subfile only (...) (21 years ago, 18-Nov-03, to lugnet.cad.dat.parts.primitives)

Re: Updated Part: 700.dat - Brick 10 x 20 —Don Heyse

(...) Actually this might be faster for rendering. If you use a display list (or similar construct) for each subfile you'll be using less display list memory overall, which might lead to faster rendering. If your renderering time is constrained by (...) (21 years ago, 19-Nov-03, to lugnet.cad.dat.parts.primitives)

Re: "Clusters" of Studs? —Damien Guichard

(...) A 3x3, 3x4 and 4x4 trilogy : * is only 3 files which satisfies the demanded compactness * is 9 to 16 times faster than individual studs which satisfies the demanded speed & size gain * covers any rectangle >= 6x6 which satisfies the demanded (...) (22 years ago, 27-Oct-02, to lugnet.cad.dat.parts.primitives)

Re: "Clusters" of Studs? —Steve Bliss

(...) Wow! Has it really been 2 years since we had this discussion? Either that, or I missed something in my newsgroup searching... Since I'm not seeing any stug*.dat files in the parts library, I'd like to revive this topic. I'd also like to (...) (20 years ago, 25-Oct-04, to lugnet.cad.dat.parts.primitives)

Re: "Clusters" of Studs? —Travis Cobbs

Since I haven't authored any parts, I'm not going to go into this too deeply, but I think that square groups is a good idea. One minor note. Going from one group size to the next gives you 2 * sqrt(N) + 1 new studs, not 2N + 1. --Travis (20 years ago, 25-Oct-04, to lugnet.cad.dat.parts.primitives)

Re: "Clusters" of Studs? —David Laswell

(...) From the way Steve explained it, it sounds like stug4 would be a 4x4 square, not a 2x2 square, in which case going from stugN to stugN+1 actually does give you another 2N+1 studs. When you think about it, by your reasoning, you'd never (...) (20 years ago, 25-Oct-04, to lugnet.cad.dat.parts.primitives)

Re: "Clusters" of Studs? —Travis Cobbs

(...) ... Whoops; you're right. --Travis (20 years ago, 25-Oct-04, to lugnet.cad.dat.parts.primitives)

Re: "Clusters" of Studs? —Franklin W. Cain

Steve, I say, "Go for it." ;) Franklin (20 years ago, 25-Oct-04, to lugnet.cad.dat.parts.primitives)

Re: "Clusters" of Studs? —Ross Crawford

(...) Just to clarify, would these include the surface between the studs, or just the studs? I think logically they should include just the studs but just wanted to make sure. (...) Maybe, if that is a future possibility, the square ones should be (...) (20 years ago, 25-Oct-04, to lugnet.cad.dat.parts.primitives)

Re: "Clusters" of Studs? —Steve Bliss

(...) Yeah, they'd be just the studs. (...) I'm not opposed to that; I don't see a compelling choice between stug* and stus*. Because I had files that used them, I went ahead and submitted stug3, stug4, stug6 and stug8 to the PT. If people want (...) (20 years ago, 26-Oct-04, to lugnet.cad.dat.parts.primitives)