uk.ac.starlink.ttools.moc

Class CdsMocBuilder

java.lang.Object

uk.ac.starlink.ttools.moc.CdsMocBuilder

All Implemented Interfaces:

MocBuilder

public abstract class CdsMocBuilder
extends Object
implements MocBuilder

MocBuilder implementation based on the CDS SMoc class.

Since:

28 Jan 2025

Author:

Mark Taylor

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CdsMocBuilder(int maxOrder) Constructor.

Method Summary

Modifier and Type	Method and Description
static MocBuilder	createCdsMocBuilder(int maxOrder, int batchSize) Returns an instance of this class that may or may not use tile batching to affect performance.
PrimitiveIterator.OfLong	createOrderedUniqIterator() Returns an iterator over the UNIQ values represented by this MOC in sequence.
long[]	getOrderCounts() Returns an array of the number of tiles present at each order of the normalised MOC.

Methods inherited from class java.lang.Object

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

Methods inherited from interface uk.ac.starlink.ttools.moc.MocBuilder

addTile, endTiles

Constructor Detail

CdsMocBuilder

protected CdsMocBuilder(int maxOrder)

Constructor.

Parameters:

maxOrder - maximum order stored by this MOC

Method Detail

createOrderedUniqIterator

public PrimitiveIterator.OfLong createOrderedUniqIterator()

Description copied from interface: MocBuilder

Returns an iterator over the UNIQ values represented by this MOC in sequence. That means that the lower-order ones come first.

Should only be called after MocBuilder.endTiles() has been called.

Specified by:

createOrderedUniqIterator in interface MocBuilder

getOrderCounts

public long[] getOrderCounts()

Description copied from interface: MocBuilder

Returns an array of the number of tiles present at each order of the normalised MOC. The length of the array gives the number of orders present (the last element may not be zero, unless only one element is returned). The sum of the elements of this array gives the number of values that will be returned by MocBuilder.createOrderedUniqIterator().

Should only be called after MocBuilder.endTiles() has been called.

Specified by:

getOrderCounts in interface MocBuilder

createCdsMocBuilder

public static MocBuilder createCdsMocBuilder(int maxOrder,
                                             int batchSize)

Returns an instance of this class that may or may not use tile batching to affect performance.

Parameters:

maxOrder - maximum HEALPix order of the MOC

batchSize - if >1, pixels are added in batches per order, which may result in improved performance