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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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(...) 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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(...) 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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