Package com.google.common.geometry

Class S2Polygon.S2PolygonIndex

java.lang.Object

com.google.common.geometry.S2EdgeIndex

com.google.common.geometry.S2Polygon.S2LoopSequenceIndex

com.google.common.geometry.S2Polygon.S2PolygonIndex

Enclosing class:

S2Polygon

public static final class S2Polygon.S2PolygonIndex
extends S2Polygon.S2LoopSequenceIndex

Indexing structure for an S2Polygon.

Nested Class Summary

Nested classes/interfaces inherited from class com.google.common.geometry.S2EdgeIndex

S2EdgeIndex.DataEdgeIterator

Field Summary

Fields

Modifier and Type	Field	Description
private final S2Polygon	poly
private final boolean	reverse

Constructor Summary

Constructors

Constructor	Description
S2PolygonIndex(S2Polygon poly)
S2PolygonIndex(S2Polygon poly, boolean reverse)

Method Summary

Modifier and Type	Method	Description
S2Edge	edgeFromTo(int index)	Mark the S2Polygon.S2LoopSequenceIndex.edgeFromTo(int) method abstract again, so children of this class must implement it without using S2Polygon.S2LoopSequenceIndex.edgeFrom(int) and S2Polygon.S2LoopSequenceIndex.edgeTo(int).
private static int[]	getVertices(S2Polygon poly)	Returns number of vertices per loop.

Methods inherited from class com.google.common.geometry.S2Polygon.S2LoopSequenceIndex

decodeIndex, edgeFrom, edgeTo, getNumEdges

Methods inherited from class com.google.common.geometry.S2EdgeIndex

clipEdge, computeIndex, findCandidateCrossings, incrementQueryCount, isIndexComputed, predictAdditionalCalls, reset

Methods inherited from class java.lang.Object

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

Field Details

poly

private final S2Polygon poly

reverse

private final boolean reverse

Constructor Details

S2PolygonIndex

public S2PolygonIndex(S2Polygon poly)

S2PolygonIndex

S2PolygonIndex(S2Polygon poly,
 boolean reverse)

Method Details

getVertices

private static int[] getVertices(S2Polygon poly)

Returns number of vertices per loop.

edgeFromTo

public S2Edge edgeFromTo(int index)

Description copied from class: S2Polygon.S2LoopSequenceIndex

Mark the S2Polygon.S2LoopSequenceIndex.edgeFromTo(int) method abstract again, so children of this class must implement it without using S2Polygon.S2LoopSequenceIndex.edgeFrom(int) and S2Polygon.S2LoopSequenceIndex.edgeTo(int).

Specified by:

edgeFromTo in class S2Polygon.S2LoopSequenceIndex