Moves the canvas and its origin on the grid.
xindicates the horizontal distance to move, and
yindicates how far to move the grid vertically.
Rotates the canvas clockwise around the current origin by the
anglenumber of radians.
Scales the canvas units by
xhorizontally and by
yis None, it is set to the same value as
x. Both parameters are real numbers. Values that are smaller than 1.0 reduce the unit size and values above 1.0 increase the unit size. Values of 1.0 leave the units the same size.