31 May
2012
31 May
'12
2:56 a.m.
Well then in case anyone needs such a transformation, I've constructed the (non-unique) transformation T
t:=angle(f,e); q:=e++f; p:=(c*f-d*e)/q; s:=(c*e+d*f)/(q**2); transform T; T:=identity rotated t xscaled p yscaled q slanted s shifted (a,b);
This yields T=(a,b,c,d,e,f). Troy