Any class for AffineTransform matrix contruction?

Hi, is it exists any class for computing coefficient of AffineTransform matrix from 3 couples of corresponding points which first point in couple is in coordinate system A and second point is in coordinate system B.
however do you know a way how it can be computed ?
thanks

I thought the OP was asking how to calculate the entries to put inside g(i,j). If I'm correct, I'm
saying that the OP will need to know the equations that map from coord system A to B. Those are the
way to calculate the matrix entries. Not true?Yep, true; every affine transformation can be represented by a matrix A and a translation vector T,
so finding the solution of Ax+Tx= y, for enough x and y values should do the trick.
PS - Hope you feel better. It's raw here - a good day to sit inside. The first snow/sleet of the season
threatens.thanks for your concern, I'm going to bed early after applying the famous "Dr Horsmeier's Jenever
Therapy Elixer" ;-)
kind regards,
Jos (snarf)

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