drasys.or.geom
Interface PolygonI

All Known Subinterfaces:

PolygonI

public interface PolygonI

extends GeomI

An interface used by all algorithms to abstractly access polygons.

Method Summary
PointI	getPoint(int index)           Returns the point at 'index' from the polygon.
java.util.Enumeration	holes()           Returns an enumeration on the holes of the polygon.
double	length()           Returns the length of the border of the polygon including the borders of all holes.
int	sizeOfHoles()           Returns the number of holes in the polygon.
int	sizeOfVertices()           Returns the number of vertices in the polygon.
java.util.Enumeration	vertices()           Returns an enumeration on the vertices of the polygon.

 

Methods inherited from interface drasys.or.geom.GeomI

coordinateSystem, getCentroid, getDistanceProxyTo, getDistanceTo, getNearestPointTo, getRange

 

Method Detail

getPoint

public PointI getPoint(int index)

Returns the point at 'index' from the polygon.

sizeOfVertices

public int sizeOfVertices()

Returns the number of vertices in the polygon. The count includes the vertices in all the polygons in the hole tree.

vertices

public java.util.Enumeration vertices()

Returns an enumeration on the vertices of the polygon. The objects returned implement 'drasys.or.geom.PointI'.

sizeOfHoles

public int sizeOfHoles()

Returns the number of holes in the polygon. The count includes the holes in all the polygons in the hole tree.

holes

public java.util.Enumeration holes()

Returns an enumeration on the holes of the polygon. The objects returned implement 'drasys.or.geom.PolygonI'.

length

public double length()

Returns the length of the border of the polygon including the borders of all holes.