Module references 

What instances are laid out along, round or at, from whichever element gives it — of the part itself, or of a part placed in it, where it is placed: TurnAxis, a line or what a round element turns around; PatternDirection, a line or a plane’s normal; PointsRef, a point or a sketch’s points of its own.

Enums

PatternDirection

A direction to go along: a line — a straight edge, a datum axis or a frame’s, a sketch’s line — or a plane, along its normal: a flat face, a datum plane, a sketch’s plane.

PointsRef

Where something goes: a vertex, a datum point or a frame’s origin, a sketch’s point — or a sketch, standing for its points that no line, arc or spline runs through.

TurnAxis

An axis to turn about: a line — a straight edge, a datum axis or a frame’s, a sketch’s line — or what a round element turns around: a circular edge, a cylindrical or conical face, a sketch’s circle or arc.

Functions

resolve_points

The points refs stand for, where the part reader reads has them — of the part itself, or of a part placed in it, moved where that is — each by a name of its own: a sketch’s point K,p3 for the point p3 of the sketch K, else the point’s name. A sketch stands for its points no line, arc or spline runs through: points placed on their own, and circles’ centres. One picked twice is refused.