Interface S2ShapeAspect.ChainAspect

All Known Subinterfaces:

S2LaxPolygonShape, S2LaxPolylineShape, S2ShapeAspect.EdgeAspect.Closed, S2ShapeAspect.EdgeAspect.Open, S2ShapeAspect.Mixed

All Known Implementing Classes:

S2LaxPolygonShape.MultiArray, S2LaxPolygonShape.MultiList, S2LaxPolygonShape.MultiPacked, S2LaxPolygonShape.MultiSnapped, S2LaxPolygonShape.SimpleArray, S2LaxPolygonShape.SimpleList, S2LaxPolygonShape.SimplePacked, S2LaxPolygonShape.SimpleSnapped, S2LaxPolylineShape.MultiArray, S2LaxPolylineShape.MultiPacked, S2LaxPolylineShape.MultiSnapped, S2LaxPolylineShape.SimpleArray, S2LaxPolylineShape.SimpleList, S2LaxPolylineShape.SimplePacked, S2LaxPolylineShape.SimpleSnapped, S2ShapeAspect.ChainAspect.Multi, S2ShapeAspect.ChainAspect.Multi.Array, S2ShapeAspect.ChainAspect.Multi.Packed, S2ShapeAspect.ChainAspect.Multi.Snapped, S2ShapeAspect.ChainAspect.Simple, S2ShapeAspect.ChainAspect.Simple.Array, S2ShapeAspect.ChainAspect.Simple.Packed, S2ShapeAspect.ChainAspect.Simple.Snapped

Enclosing interface:

S2ShapeAspect

public static interface S2ShapeAspect.ChainAspect

A provider of the 'edgeId' ranges for each chain, allowing alternate chain representations.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	S2ShapeAspect.ChainAspect.Multi	A sequence of chains, represented as an array of the first 'edgeId' for each chain.
static class	S2ShapeAspect.ChainAspect.Simple	A single non-empty chain.

Method Summary

Modifier and Type	Method	Description
int	chainId(int edgeId)	Returns the chain ID of a given edge.
int	edgeId(int chainId)	Returns start edge ID of a chain, or the number of edges if chainId==numChains().
int	getChainLength(int chainId)	Provides S2Shape.getChainLength(int).
int	getChainStart(int chainId)	Provides S2Shape.getChainStart(int).
int	numChains()	Provides S2Shape.numChains().

Method Details

chainId

int chainId(int edgeId)

Returns the chain ID of a given edge.

edgeId

int edgeId(int chainId)

Returns start edge ID of a chain, or the number of edges if chainId==numChains().

numChains

int numChains()

Provides S2Shape.numChains().

getChainStart

int getChainStart(int chainId)

Provides S2Shape.getChainStart(int).

getChainLength

int getChainLength(int chainId)

Provides S2Shape.getChainLength(int).