CoreandServices.book - Ocean - Schlumberger

Basics
EquivalenceTransform – This method creates a new extent that has the same
relationship to me as a given subExtent has to a given masterExtent. If a relationship
cannot be derived, then an empty extent is created.
Extent2 extVal = new Extent2(new Index2 (1, 2), new Index2(1, 2));
// extVal is [1 : 1 : 1, 2 : 1 : 3]
Extent2 extMaster = new Extent2(new Index2 (1, 2), new Index2(1, 2));
// extMaster is [1 : 1 : 1, 2 : 1 : 3]
Extent2 extSub = new Extent2(new Index2 (1, 2), new Index2(1, 3));
// extSub is [1 : 1 : 1, 2 : 1 : 4]
Extent2 newExt = extVal.EquivalenceTransform(extMaster, extSub);
// result for newExt is [1 : 1 : 1, (empty)]
IndexExtent – This method creates a new extent from the current extent that
represents an index. The index extent will have starting values at 0, increment by 1, and
contain the number of values in the original extent. There are two overloaded methods for
IndexExtent.
Method 1:
public Extent2 IndexExtent();
Create an index extent from an Extent2 object that begins at 0, increments by 1, and
has the same count.
Extent2 extVal = new Extent2(new Index2 (1, 2), new Index2(1, 3));
//result is [1 : 1 : 1, 2 : 1 : 3]
Method 2:
Extent2 newExt = extVal.IndexExtent();
//result is [0 : 1 : 0, 0 : 1 : 2]
public Extent2 IndexExtent(Extent2 other);
4-122 Ocean Application Development Framework 2008.1
Schlumberger Private