turtle.shapetransform(t11=None, t12=None, t21=None, t22=None)
Parameters:
t11 – a number (optional)
t12 – a number (optional)
t21 – a number (optional)
t12 – a number (optional)
Set or return the current transformation matrix of the turtle shape.
If none of the matrix elements are given, return the transformation matrix as a tuple of 4 elements. Otherwise set the given elements and transform the turtleshape according to the matrix consisting of first row t11, t12 and second row t21,