Module containment 

Polygon containment checking.

Determines if one polygon (set of convex parts) is fully inside another. Uses vertex checking plus edge midpoint sampling (t=1/3, t=2/3) for multi-part outer polygons where the composite shape may be concave.

Ported from polygon.move::contains_polygon / part_is_inside_parts.

Functions

contains_polygon

True if the inner polygon (set of parts) is fully contained within the outer polygon.

point_inside_any_part

True if point (x, y) is inside any of the given convex parts.