If a figure is rotated 90^\\circ counter-clockwise about (0,0)(0, 0)(0,0), (1,0)(1, 0)(1,0) maps to:
(−1,0)(-1, 0)(−1,0)
(0,1)(0, 1)(0,1)
(0,−1)(0, -1)(0,−1)
(1,1)(1, 1)(1,1)