procedure transform: transform point list by matrix procedure transform_points transform point list procedure set_scale: matrix for scaling procedure set_trans: matrix for translation procedure set_xshear: matrix for x shear procedure set_yshear: matrix for y shear procedure set_rotate: matrix for rotation
link xforms
March 25, 2002; Stephen W. Wampler and Ralph E. Griswold
This file is in the public domain.
These procedures produce matrices for affine transformation in two dimensions and transform point lists. A point list is a list of Point() records. See gobject.icn.