edu.stanford.math.plex

Class ExplicitStream.DComplex

java.lang.Object

edu.stanford.math.plex.ExplicitStream.DComplex

Enclosing class:

ExplicitStream

public static class ExplicitStream.DComplex
extends java.lang.Object

A DComplex (for Dimensional Complex) is the set of simplices (and associated persistence parameters) of specified dimension for an ExplicitStream. The slots are accessed only by read methods. It is expected that this will be used primarily to connect Plex with Matlab.

Field Summary

Fields

Modifier and Type	Field and Description
protected int[][]	C
protected int	dimension
protected double[]	F
protected int	open_count
protected ExplicitStream	parent

Constructor Summary

Constructors

Constructor and Description
ExplicitStream.DComplex(ExplicitStream parent, int dimension, int[][] C, double[] F) Constructor for DComplex;

Method Summary

Methods

Modifier and Type	Method and Description
int[][]	C() Return the array of vertex arrays for the simplices of this dimension.
int	dimension() Return the dimension of this DComplex.
double[]	F() Return the array of persistence parameters corresponding to the simplices of this dimension.
boolean	hasNext() Is there a larger dimensional DComplex for this stream?
ExplicitStream.DComplex	next() Return a DComplex of the next largest dimension, if there is one, else null.
protected boolean	parent_is_consistent()
ExplicitStream	parent() Return the parent ExplicitStream of this DComplex.

Methods inherited from class java.lang.Object

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

Field Detail

parent

protected ExplicitStream parent

dimension

protected int dimension

open_count

protected int open_count

C

protected int[][] C

F

protected double[] F

Constructor Detail

ExplicitStream.DComplex

public ExplicitStream.DComplex(ExplicitStream parent,
                       int dimension,
                       int[][] C,
                       double[] F)

Constructor for DComplex;

Parameters:

parent - The ExplicitStream from which the simplices came.

dimension - The dimension of the simplices.

C - The actual array of vertex arrays (simplices).

F - The array of associated persistence parameters.

Method Detail

parent_is_consistent

protected boolean parent_is_consistent()

hasNext

public boolean hasNext()

Is there a larger dimensional DComplex for this stream?

Returns:

true if the parent is consistent with this DComplex and there is are larger dimensional simplices in the parent, else false.

next

public ExplicitStream.DComplex next()

Return a DComplex of the next largest dimension, if there is one, else null.

Returns:

A DComplex of dimension 1 more, if there is one, else null.

parent

public ExplicitStream parent()

Return the parent ExplicitStream of this DComplex.

Returns:

The parent ExplicitStream.

dimension

public int dimension()

Return the dimension of this DComplex.

Returns:

The dimension of this DComplex.

C

public int[][] C()

Return the array of vertex arrays for the simplices of this dimension.

Returns:

Return the array describing the part of the complex having the current dimension.

F

public double[] F()

Return the array of persistence parameters corresponding to the simplices of this dimension.

Returns:

A double[] of the persistence parameters for this dimension.