- All Implemented Interfaces:
IndexIterator, java.io.Serializable
public class IndexIteratorTriangularPermutations
extends java.lang.Object
implements IndexIterator, java.io.Serializable
Generates all unique iterates formed as permutations of iterates given by IndexIteratorTriangular with
allowEqualElements set to true. This aims to generate iterates over a pyrimidal region, such that each subsequent
iterate has a sum-squared magnitude that is greater than that of previous iterates (this is accomplished
only approximately; some iterates are "closer" to origin than some others that precede it). This ordering
contrasts with IndexIteratorRectangular which nests iteration over each coordinate direction.
For example, with D set to 3 (at construction), and maxElement = 2, the following iterates are generated:
{0,0,0}
{0,0,1}
{0,1,0}
{1,0,0}
{0,1,1}
{1,0,1}
{1,1,0}
{1,1,1}
{0,0,2}
{0,2,0}
{2,0,0}
{0,1,2}
{1,0,2}
{1,2,0}
{0,2,1}
{2,0,1}
{2,1,0}
{1,1,2}
{1,2,1}
{2,1,1}
{0,2,2}
{2,0,2}
{2,2,0}
{1,2,2}
{2,1,2}
{2,2,1}
{2,2,2}
- See Also:
- Serialized Form