Package com.google.common.geometry

Class S2Shape.MutableEdge

java.lang.Object

com.google.common.geometry.S2Shape.MutableEdge

Enclosing interface:

S2Shape

public static final class S2Shape.MutableEdge
extends Object

A simple receiver for the endpoints of an edge.

invalid input: '<'>The S2Edge class is not suitable for retrieving large numbers of edges, as it often triggers allocations. This class is intended to allow fast retrieval of the endpoints in a single call.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) S2Point	a	Endpoints of this edge last set by passing this instance to S2Shape.getEdge(int, MutableEdge).
(package private) S2Point	b

Constructor Summary

Constructors

Constructor	Description
MutableEdge()

Method Summary

Modifier and Type	Method	Description
S2Point	getEnd()	Returns the trailing point of the last edge retrieved via S2Shape.getEdge(int, MutableEdge), or null if no edge has been retrieved.
S2Point	getStart()	Returns the leading point of the last edge retrieved via S2Shape.getEdge(int, MutableEdge), or null if no edge has been retrieved.
boolean	isEndpoint(S2Point point)	Returns true iff 'point' is either endpoint of this edge.
void	set(S2Point start, S2Point end)	Called by implementations of S2Shape.getEdge(int, MutableEdge) to update the endpoints of this mutable edge to the given values.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

a

S2Point a

Endpoints of this edge last set by passing this instance to S2Shape.getEdge(int, MutableEdge).

b

S2Point b

Constructor Details

MutableEdge

public MutableEdge()

Method Details

getStart

public S2Point getStart()

Returns the leading point of the last edge retrieved via S2Shape.getEdge(int, MutableEdge), or null if no edge has been retrieved.

getEnd

public S2Point getEnd()

Returns the trailing point of the last edge retrieved via S2Shape.getEdge(int, MutableEdge), or null if no edge has been retrieved.

isEndpoint

public boolean isEndpoint(S2Point point)

Returns true iff 'point' is either endpoint of this edge.

set

public void set(S2Point start,
 S2Point end)

Called by implementations of S2Shape.getEdge(int, MutableEdge) to update the endpoints of this mutable edge to the given values.