48 lines
1.5 KiB
Java
48 lines
1.5 KiB
Java
/*
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* CycleListListPoints.java 2005-05-11
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*
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* Dirk Ansorge, FernUniversitaet Hagen
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*
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*/
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package twodsack.util.collection;
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import java.util.*;
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/**
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* An instance of the CycleListListPoints class is a representation of a Regions value. A Regions type is usually not part of the
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* 2DSACK package. However, to support the conversion from nested list <-> Java object, the implementation of this class was
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* necessary.<p>
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* A CycleListListPoints itself is a LinkedList which has {@link CycleList}(s) as elements. Each of those CycleList(s) represents one face
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* of the Regions value. Stored inside of such a list are cycles. The first cycle is always the outer cycle of such a face. All other
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* cycles (if any) are hole cycles. A CycleList has LinkedList(s) as elements that have
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* {@link twodsack.setelement.datatype.basicdatatype.Point} objects as elements, here.
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*/
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public class CycleListListPoints extends LinkedList {
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/*
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* constructors
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*/
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/**
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* Constructs an 'empty' CycleListListPoints.
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*/
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public CycleListListPoints(){}
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/*
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* methods
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*/
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/**
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* This method is needed to support the Clone() function in RoseAlgebra.cpp.
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*/
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public CycleListListPoints copy() {
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//returns a deep copy of <i>this</i>
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CycleListListPoints copy = new CycleListListPoints();
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Iterator it = this.listIterator(0);
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while (it.hasNext()) {
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copy.add(((CycleList)it.next()).copy());
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}//while it
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return copy;
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}//end copy
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}//end class CycleListListPoints
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