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 Details

    • CdsMocBuilder

      protected CdsMocBuilder(int maxOrder)
      Constructor.
      Parameters:
      maxOrder - maximum order stored by this MOC
  • Method Details

    • 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