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

All Methods Instance Methods Abstract Methods
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 Detail
  - 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).