Check Jeremy's reply. It was more clear than mine.
Basically the situation is as follows. Assume you have transformations A and C and you want to know the relative transformation B between them.
You know that:
AB = C
When you multiply this with A's inverse, you get:
((Ainv)A)B = (Ainv)C
Since ((Ainv)A) = I (identity),
Then:
B = (Ainv)C
Pasi
-----Original Message-----
From: Discussion list for Java 3D API
[mailto:[EMAIL PROTECTED]]On Behalf Of Nikolai V. Chr.
Sent: 21. marraskuuta 2003 13:44
To: [EMAIL PROTECTED]
Subject: Re: [JAVA3D] Difficult matrix algebra problem
Pasi Paasiala wrote:
> If you have the transforms in the global coordinates, you can use the
> inverse transform to get the relative transform.
>
> Take the inverse of one of the global transformations and multiply
> with it the other.
>
You mean like this or the opposite mul:
solution.mul(M|1.invert(), M2);|
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