webbpsf_ext.coords.xy_rot

webbpsf_ext.coords.xy_rot(x, y, ang)

Rotate (x,y) positions to new coords

Rotate (x,y) values by some angle. Positive ang values rotate counter-clockwise.

Parameters

• x (float or array) – X location values

• y (float or array) – Y location values

• ang (float or array) – Rotation angle in degrees CCW