Definitions for "Convex hull"
The convex hull of a set of points is the intersection of all convex sets which contain the points.
The convex hull CH() of a polygon is the smallest convex polygon that contains .
a convenient way to get an approximation of a complex geometry object
a shape in a coordinate system, where if two positions A and B are inside the shape, then all positions in the straight line between A and B are also inside the shape