C = polararray (S, N, ANGLE, AXIS, P) places N copies of the shape round the axis through the point P in the direction AXIS, the z axis through the origin by default, the first where the shape is and the rest turned on by the right-hand rule, the other way for a negative ANGLE. A whole turn, ANGLE of 360, spaces them evenly ANGLE / N apart; a part of a turn puts one at each end, ANGLE / (N - 1) apart. It returns them as one shape, as solid.Shape.copy does.

Each copy is turned as it goes round, as the holes of a bolt circle, the teeth of a wheel or the blades of a fan are. With 'Rotate' set to false each copy keeps the shape’s own direction, moved as the centre of its bounding box moves.

 ## A flange of diameter 60 with six bolt holes of 6 on a circle of 40
 H = polararray (translate (solid.cylinder (3, 8), [20, 0, 0]), 6, 360);
 F = subtract (solid.cylinder (30, 8), solid.cylinder (10, 8), H);

See also: solid.Shape.copy, solid.Shape.rectarray, solid.Shape.rotate

Source Code: solid.Shape