 | | Re: Quick way to mirror-image a model?
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(...) Take a peek at the MLCAD.INI file for minifig posing. Could you use a config file like this to handle the exceptions? I'd imagine if you pick one axis for mirroring that works best with most parts, (I think Travis said most were symmetric (...) (20 years ago, 18-Jun-04, to lugnet.cad)
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| | Re: Quick way to mirror-image a model?
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(...) Now that I've done that, I agree with you. The true proper thing to do is to adjust the rotation matrix of all parts by -a d -g (x, y, z) * -b e -h = (-ax-by-cz, dx+ey+fz, -gx-hy-iz) -c f -i and create a list of exceptions that would be a (...) (20 years ago, 18-Jun-04, to lugnet.cad)
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| | Re: Quick way to mirror-image a model?
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(...) When you ask a stupid question, I'll let you know! 8^) You're right--it would rotate the brick 180 degrees, but I think that's necessary sometimes (like for the 2x2 slope bricks mirrored left-to-right). But you're also right that this isn't (...) (20 years ago, 18-Jun-04, to lugnet.cad)
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| | Complex scenes and .mpd to .ldr conversion
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OK, here's my problem: I'm trying to make a pretty complex metropolis scene (40+ submodels) and insert some of my crafts into it. The problem is that these models are made as .mpd files, and importing such, is rather difficult: Working in MLcad, I (...) (20 years ago, 18-Jun-04, to lugnet.cad, FTX)
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| | LMirror 1.0
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In response to my question earlier, about mirroring a model, I wrote a little app that I oh-so-creatively call LMirror to do a left-to-right and/or front-to-back reflection, or a top-to-bottom reordering. You can download it at: (URL) at your own (...) (20 years ago, 18-Jun-04, to lugnet.cad)
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| | Re: Quick way to mirror-image a model?
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(...) Darn it, I meant the first ROW. (Doesn't show that I have a math degree, eh? ;-) Carl (20 years ago, 18-Jun-04, to lugnet.cad)
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| | Re: Quick way to mirror-image a model?
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(...) I found the answer to this ((URL) the first column should be a d g. My poor layout doesnn't change the rotation matrix (I think). Carl (20 years ago, 18-Jun-04, to lugnet.cad)
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| | Re: Quick way to mirror-image a model?
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(...) Wouldn't that still be a 180 degree rotation rather than a flip, since -1 0 0 (x y z) * 0 1 0 = (-x y -z) 0 0 -1 ? Or am I laying out my rotation matrix incorrectly (is the first line a b c or a d g)? Sorry for all the stupid questions, I'm (...) (20 years ago, 18-Jun-04, to lugnet.cad)
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| | Re: Quick way to mirror-image a model?
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(...) I didn't necessarily mean quick, I meant easy. Hey, I'm lazy. ;-) I like both answers because you gave me what I needed to know to accomplish the task quickly, Dave gave me what I needed to know to understand what I'm doing! Carl (20 years ago, 18-Jun-04, to lugnet.cad)
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| | Re: Quick way to mirror-image a model?
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(...) If this bothers you, a partial solution is here: (URL) the results from running the program aren't really appropriate for distribution to others, you can at least do your own POV renderings (as long as you don't use -lgeo). Additionally, the (...) (20 years ago, 17-Jun-04, to lugnet.cad)
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| | Re: Quick way to mirror-image a model? [DAT]
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(...) Dumb, dumb, dumb. To be a true "mirror" as you've requested, the second example should have read this way: A B C D E F G H I J K L M N O P 1 16 -100 0 -10 -1 0 0 0 1 0 0 0 -1 3001.DAT The way I originally posted it, the 3001 brick would be (...) (20 years ago, 17-Jun-04, to lugnet.cad)
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| | Re: Quick way to mirror-image a model? [DAT]
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(...) You know, I think you're correct about that. I think I'm the last person who still uses LEdit as his primary LDraw platform, and for reasons of my own I always orient my parts and models rotated 90 degrees relative to the true LDraw standard (...) (20 years ago, 17-Jun-04, to lugnet.cad)
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| | Re: Quick way to mirror-image a model?
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(...) Thanks for the responses--they were very helpful. I found the disadvantage to Don's rotation matrix method to be that when it's used the mouse commands in MLCad are reversed, i.e., dragging the part left moves it right--but it sure worked (...) (20 years ago, 17-Jun-04, to lugnet.cad)
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| | Re: Quick way to mirror-image a model?
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(...) Fair enough--I guess "quick" is in the eye of the beholder. 8^) Dave! (20 years ago, 17-Jun-04, to lugnet.cad)
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| | Re: Quick way to mirror-image a model?
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In lugnet.cad, Dave Schuler wrote: [snip] (...) Bad choice of words "silly". Sorry about that, but he asked for a "quick" way to do it. He used the word "quick" twice in fact. But everyone seemed intent on providing a thorough, but complex method (...) (20 years ago, 17-Jun-04, to lugnet.cad)
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| | Re: Quick way to mirror-image a model?
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(...) Won't that cause all of the LEGO logo on all of the studs in the mirrored parts to be reversed? I thought that part of the point of the question was to avoid that. I think that measures are being taken to correct the mirrored-logo issue, but (...) (20 years ago, 17-Jun-04, to lugnet.cad)
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| | Re: Quick way to mirror-image a model?
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(...) Oops, wrong color. That should be 1 16 0 0 0 1 0 0 0 1 0 0 0 1 subfile.ldr 1 16 320 0 0 -1 0 0 0 1 0 0 0 1 subfile.ldr just in case... Enjoy, Don (20 years ago, 17-Jun-04, to lugnet.cad)
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| | Re: Quick way to mirror-image a model?
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(...) L (...) This is silly. Just put the structure you want to mirror in a subfile and do this. 1 0 0 0 0 1 0 0 0 1 0 0 0 1 subfile.ldr 1 0 320 0 0 -1 0 0 0 1 0 0 0 1 subfile.ldr You can do it in ldglite using the scale by (-1,1,1) command (just (...) (20 years ago, 17-Jun-04, to lugnet.cad)
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| | Re: Quick way to mirror-image a model?
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(...) The way I usually do this is clunky, but it basically works. It also requires a little familiarity with MS Excel and some kind of text editor, as well as an understanding of the LDraw DAT-file format. Create a backup of the MOC file. Open the (...) (20 years ago, 17-Jun-04, to lugnet.cad)
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| | Re: Primitive Generator program update
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(...) One bug I've found so far: When I enter a value in the size (radius) box, the filename of the generated part does not use this value. When I use the up/down buttons, the filename is correct. For a large radius it is more convenient to enter (...) (20 years ago, 17-Jun-04, to lugnet.cad.dev)
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