 | | Re: Another matrix inverse question (and answer?)
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(...) I think I just answered my own question. I applied the inverse rotation (calculated by swapping the off-diagonals) to the translation row of the original transformation and then negated it to get the translation row in the inverse. That worked (...) (19 years ago, 11-Apr-07, to lugnet.cad)
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| | Re: 10183 Hobby Train instuctions
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(...) Very interesting. I'd like to hear more details. I haven't got my sets yet (but I think they might be downstairs in the building office - I just need to be going by when someone is there), but the order emails list the instructions as separate (...) (19 years ago, 11-Apr-07, to lugnet.trains)
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| | Re: Another matrix inverse question
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(...) I can see the advantages of swapping the off-diagonals for inverting the rotation(s), but that still leaves the question of how to invert translations. In a current example I'm looking at, a minifig hand, the hand is rotated 45 degrees, (...) (19 years ago, 11-Apr-07, to lugnet.cad)
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| | Re: 10183 Hobby Train instuctions
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(...) All 30 or just the main model? I thought printed instructions for the main model were included with the set? ROSCO (19 years ago, 11-Apr-07, to lugnet.trains)
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| | Honolulu Chinatown building MOC
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Hi all, I've pretty much completed my first MOC of a building from Honolulu's historic Chinatown. (URL) More pictures are in the (URL) gallery> Located at the NE corner of King Street and Nuuanu Ave, this building houses the Home Street Bank. Some (...) (19 years ago, 11-Apr-07, to lugnet.town, lugnet.announce.moc, FTX) !!
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