DPolyArray Class Reference

Inherits vector< DPolygon2 >.

Public Member Functions
int	FindPoly (const DPoint2 &p) const

Static Public Attributes
static int	s_previous_poly = -1

Detailed Description

A collection of DPolygon2 objects.

Member Function Documentation

int DPolyArray::FindPoly

(

const DPoint2 &

p

)

const

Return the index of the polygon at a specified point, or -1 if there is no polygon there.

For speed, it first test the polygon which was found last time. For spatially linear testing, this can be a 10x speedup.