Package com.google.common.geometry

Class S2CellIndex.NonEmptyRangeIterator

java.lang.Object

com.google.common.geometry.S2CellIndex.RangeIterator

com.google.common.geometry.S2CellIndex.NonEmptyRangeIterator

Enclosing class:

S2CellIndex

public class S2CellIndex.NonEmptyRangeIterator
extends S2CellIndex.RangeIterator

As S2CellIndex.RangeIterator but only visits range nodes that overlap (cellId, label) pairs.

Constructor Summary

Constructors

Constructor	Description
NonEmptyRangeIterator()

Method Summary

Modifier and Type	Method	Description
void	begin()	Positions this iterator at the first range of leaf cells (if any).
void	next()	Advances the iterator to the next range of leaf cells.
boolean	prev()	Returns false if the iterator was already positioned at the beginning, otherwise positions the iterator at the previous entry and returns true.
void	seek(S2CellId target)	Positions the iterator at the range containing "target".

Methods inherited from class com.google.common.geometry.S2CellIndex.RangeIterator

advance, done, finish, isEmpty, limitId, startId

Methods inherited from class java.lang.Object

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

Constructor Details

NonEmptyRangeIterator

public NonEmptyRangeIterator()

Method Details

begin

public void begin()

Description copied from class: S2CellIndex.RangeIterator

Positions this iterator at the first range of leaf cells (if any).

Overrides:

begin in class S2CellIndex.RangeIterator

next

public void next()

Description copied from class: S2CellIndex.RangeIterator

Advances the iterator to the next range of leaf cells.

Overrides:

next in class S2CellIndex.RangeIterator

prev

public boolean prev()

Description copied from class: S2CellIndex.RangeIterator

Returns false if the iterator was already positioned at the beginning, otherwise positions the iterator at the previous entry and returns true.

Overrides:

prev in class S2CellIndex.RangeIterator

seek

public void seek(S2CellId target)

Description copied from class: S2CellIndex.RangeIterator

Positions the iterator at the range containing "target". Such a range exists as long as the target is a valid leaf cell.

Overrides:

seek in class S2CellIndex.RangeIterator

Parameters:

target - a valid leaf (level 30) cell to seek to