Subject:
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Re: Can someone explain the method to the madness...
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Newsgroups:
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lugnet.cad
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Date:
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Mon, 8 Mar 2004 21:47:58 GMT
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Viewed:
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596 times
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In lugnet.cad, Mike Thorn wrote:
> Well, I don't know if it's madness or not, but it's driving {me} mad, at any
> rate.
>
> Can some kind soul explain either or both of the following:
>
> 1) What is the conversion system for MLCAD units to POV units, when not using
> LGEO?
One to One
> 2) Why does L3P create matrices for the placement of elements instead of
> using |translate|?
Matrix is faster because a matrix defines rotation, translation, scaling, and
skewing all in the same statement.
> I'm cracking my keyboard over my head trying to replace a |matrix| with a
> |translate| so I can perform a clock animation on it, but I'm having
> absolutely no success. Desperation drives one to ask many questions.
You can translate without replacing the matrix. Here's a typical POV matrix:
matrix <-1,0,0,0,1,0,0,0,-1,0,-56,30>
The last 3 numbers are the object's postion (i.e. translation).
-Orion
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Message has 1 Reply:
 | | Re: Can someone explain the method to the madness...
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| (...) That is correct Orion. (...) L3P uses matrix because a line type 1 already is a matrix. It didn't occur to me to set the last three elements of the matrix as zeros and printing them in a separate translate statement in stead. Speed is only a (...) (21 years ago, 9-Mar-04, to lugnet.cad)
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Message is in Reply To:
| | Can someone explain the method to the madness...
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| Well, I don't know if it's madness or not, but it's driving me mad, at any rate. Can some kind soul explain either or both of the following: 1) What is the conversion system for MLCAD units to POV units, when not using LGEO? 2) Why does L3P create (...) (21 years ago, 8-Mar-04, to lugnet.cad, FTX)
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