GeometryHelper

Type 25F · Polar and angles

Polar to X Y

What this does. turns a radius and an angle into an X and a Y, for a bolt hole or a point on a pitch circle.

Use it when. the print says "6 holes on 45 PCD" or "point at 1.95 on 60°" and the drill event wants X and Y.

0°CPX = R cos θ Y = R sin θX = R cos θ Y = R sin θ
From the centre

0° is 3 o'clock. Positive runs counter-clockwise.