 | | Re: Reiterate: How to make a squish matrix? —Koen Jordens
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| | | i thought you just had to multiply your matrix with something like 1 0 0 0 2 0 0 0 1 this would make Y 2 times as long. Not? Koen Don Heyse <dheyse@hotmail.spam....away.com> schreef in berichtnieuws GCBD52.3qI@lugnet.com... (...) (URL) (...) target (...) (24 years ago, 25-Apr-01, to lugnet.cad, lugnet.cad.ray)
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| | | | | Re: Reiterate: How to make a squish matrix? —Steve Bliss
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| | | | (...) Yes, but it's not what Sproat needs. He needs to scale X and Z as a function of Y. Something like: x' = xy Which is something transform matrices cannot do. Steve (24 years ago, 25-Apr-01, to lugnet.cad, lugnet.cad.ray)
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| | | | | | Re: Reiterate: How to make a squish matrix? —Jeremy H. Sproat
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| | | | (...) Yah. Bummer. Thanks, though, to Dan and Steve. Cheers, - jsproat (24 years ago, 25-Apr-01, to lugnet.cad, lugnet.cad.ray)
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| | | | | | Re: Reiterate: How to make a squish matrix? —Koen Jordens
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| | | | that shouldn't be too hard either. just operate the matrix on the points alone. if your cilinder has it's axle around the Y axle. L is the length of the cilinder and if it starts at 0 0 0 you could use (1-y/L) 0 0 0 1 0 0 0 (1-y/L) this would turn (...) (24 years ago, 25-Apr-01, to lugnet.cad, lugnet.cad.ray)
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| | | | | | Re: Reiterate: How to make a squish matrix? —Don Heyse
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| | | | (...) Yes, but you cannot put (1-y/L) into a transformation matrix. It is a *function* that changes for each 3D point. The purpose of a tranformation matrix is to precalculate a matrix of *numbers* that gets multiplied by all the points of the (...) (24 years ago, 25-Apr-01, to lugnet.cad, lugnet.cad.ray)
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