rotate src into this Image24. This Image24 is completely overwritten.
x is the horiz. coordinate of the center of rotation of src.
y is the vertical coordinate of the center of rotation of src.
cxt is the horiz. coordinate of the new position of the center
of rotation in this Image24.
cyt is the vertical coordinate of the new position of the center of rotation in this Image24.
deg is the rotation angle in degrees. positive means counterclockwise.
scale is the magnification factor of the image. set it to 1 for no scaling.

Image24 newrotatedcopy(double deg,double scale)

return a rotated copy of this Image24.
deg is the rotation angle in degrees. positive means counterclockwise
scale is the magnification factor of the image

out=im.newrotatedcopy(45,0.7);

void translate(int dx,int dy)

slide/shift/translate the image. The image in wrapped around:
anything shifted out will shift in at a different position.