| | Re: rotation matrices
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I have put the entire curve online at (URL) 200 Kb I think it's pretty nice except for the strange twists in it. Koen (24 years ago, 18-Oct-00, to lugnet.cad.dat.parts)
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| | Re: rotation matrices
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(...) What approach would you take? (24 years ago, 18-Oct-00, to lugnet.cad.dat.parts)
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| | Re: rotation matrices
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(...) I briefly scanned the page you mentioned, it looks like it should be OK for LDraw. Paul Gyugyi uses a general rotation method for LDLite's ROTATE meta-statement, and I've implemented an equivalent in LDAO's LDL2DAT translator. But I don't know (...) (24 years ago, 18-Oct-00, to lugnet.cad.dat.parts)
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| | Re: rotation matrices
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(...) I'm pretty sure that should be: A D G 0 B E H 0 C F I 0 X Y Z 1 So multiplying (used fixed-pitch font for proper viewing): (x y z 1) (A D G 0) (B E H 0) (C F I 0) (X Y Z 1) gives (Ax + By + Cx + X Dx + Ey + Cz + Y Gx + Hy + Iz + Z 1) (...) (...) (24 years ago, 18-Oct-00, to lugnet.cad.dat.parts)
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| | 32308 Technic Liftarm 3 x 7 x 2 Y shape [DAT]
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I am back with new parts. Here is the first one, others are in progress. I am sorry for the large size of that part. My conversion program stl2dat does not recognize many usefull features. But I am working on a new release, so I would perhaps be (...) (24 years ago, 18-Oct-00, to lugnet.cad.dat.parts)
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| | Re: rotation matrices
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"koen" <koen.jordens@studen...ven.ac.be> wrote in message news:G2JIF8.L7o@lugnet.com... (...) They are the upper-left 3x3 matrix of a standard 4x4 transformation matrix used in 3D graphics. I'm not going to give a lesson on 3D transformations, but (...) (24 years ago, 18-Oct-00, to lugnet.cad.dat.parts)
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| | Re: rotation matrices
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(...) Well, I copied the coordinates of one side of the axlehol8 dat. This gives me a plane that is perpendicular to the Y-axis. I then had to position this plane on points of the curves and perpendicular to that curve. To get the direction I (...) (24 years ago, 17-Oct-00, to lugnet.cad.dat.parts)
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| | Re: rotation matrices
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(...) Could you be more specific? (...) Like what? Again, could you be more specific. (...) There's no general limit. (...) That looks very nice. It's not too surprising you're getting a big file. Have you checked your file for duplicate or (...) (24 years ago, 17-Oct-00, to lugnet.cad.dat.parts)
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| | Something I noticed [DAT]
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I noticed that one of the minifig torsos in the official update did not have a back on it. 973p101, The SW Rebel pilot torso. I don't know if this has already been fixed and not included in an update, but here it is. I'm not the original author, so (...) (24 years ago, 17-Oct-00, to lugnet.cad.dat.parts)
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| | 3626b103.dat - Minifig Head - SW Determined w/ Brown Eyebrows/Moustache/Beard (Qui-Gon) pattern [DAT]
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Here's one more... Please LMKWYT. ;-) Thanks, Franklin 0 Minifig Head - SW Determined w/ Brown Eyebrows/Moustache/Beard (Qui-Gon) pattern 0 Unofficial Element 0 Author: Franklin W. Cain (fwcain@yahoo.com) 0 0 KEYWORDS minifig head face serious (...) (24 years ago, 17-Oct-00, to lugnet.cad.dat.parts)
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