affine transformation of a set of points
xy1=scaling(xy,scalingFactor,[orig])
matrix of size (2,.).
matrix of size (2,.).
real scalar, coefficient of the linear transformation.
shift vector; default value is [0;0].
scaling
performs an affine transformation on the set of points defined
by the coordinates xy
:
xy1(:,i) = scalingFactor * (xy(:,i) - orig) + orig
.