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//******************************************************************************
//
// File: TransformedXYZSeries.java
// Package: edu.rit.numeric
// Unit: Class edu.rit.numeric.TransformedXYZSeries
//
// This Java source file is copyright (C) 2007 by Alan Kaminsky. All rights
// reserved. For further information, contact the author, Alan Kaminsky, at
// ark@cs.rit.edu.
//
// This Java source file is part of the Parallel Java Library ("PJ"). PJ is free
// software; you can redistribute it and/or modify it under the terms of the GNU
// General Public License as published by the Free Software Foundation; either
// version 3 of the License, or (at your option) any later version.
//
// PJ is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
// A PARTICULAR PURPOSE. See the GNU General Public License for more details.
//
// Linking this library statically or dynamically with other modules is making a
// combined work based on this library. Thus, the terms and conditions of the
// GNU General Public License cover the whole combination.
//
// As a special exception, the copyright holders of this library give you
// permission to link this library with independent modules to produce an
// executable, regardless of the license terms of these independent modules, and
// to copy and distribute the resulting executable under terms of your choice,
// provided that you also meet, for each linked independent module, the terms
// and conditions of the license of that module. An independent module is a
// module which is not derived from or based on this library. If you modify this
// library, you may extend this exception to your version of the library, but
// you are not obligated to do so. If you do not wish to do so, delete this
// exception statement from your version.
//
// A copy of the GNU General Public License is provided in the file gpl.txt. You
// may also obtain a copy of the GNU General Public License on the World Wide
// Web at http://www.gnu.org/licenses/gpl.html.
//
//******************************************************************************
package edu.rit.numeric;
/**
* Class TransformedXYZSeries provides an {@linkplain XYZSeries} that is formed
* by transforming the values in an underlying {@linkplain XYZSeries}. The
* underlying series consists of a list of triples
* (<I>x</I><SUB><I>i</I></SUB>, <I>y</I><SUB><I>i</I></SUB>, <I>z</I><SUB><I>i</I></SUB>).
* The transformed series consists of a list of triples
* (<I>f</I><SUB>1</SUB>(<I>x</I><SUB><I>i</I></SUB>), <I>f</I><SUB>2</SUB>(<I>y</I><SUB><I>i</I></SUB>), <I>f</I><SUB>3</SUB>(<I>z</I><SUB><I>i</I></SUB>)),
* where each of <I>f</I><SUB>1</SUB>, <I>f</I><SUB>2</SUB>, and
* <I>f</I><SUB>3</SUB> is computed by a {@link Function </CODE>Function<CODE>}.
*
* @author Alan Kaminsky
* @version 27-Jul-2007
*/
public class TransformedXYZSeries
extends XYZSeries
{
// Hidden data members.
private XYZSeries mySeries;
private Function myXFunction;
private Function myYFunction;
private Function myZFunction;
// Exported constructors.
/**
* Construct a new transformed X-Y-Z series.
*
* @param theSeries Underlying X-Y-Z series.
* @param theXFunction Function for transforming the X values, or null not
* to transform the X values.
* @param theYFunction Function for transforming the Y values, or null not
* to transform the Y values.
* @param theZFunction Function for transforming the Z values, or null not
* to transform the Z values.
*
* @exception NullPointerException
* (unchecked exception) Thrown if <TT>theSeries</TT> is null.
*/
public TransformedXYZSeries
(XYZSeries theSeries,
Function theXFunction,
Function theYFunction,
Function theZFunction)
{
if (theSeries == null)
{
throw new NullPointerException
("TransformedXYZSeries(): theSeries is null");
}
mySeries = theSeries;
myXFunction = theXFunction;
myYFunction = theYFunction;
myZFunction = theZFunction;
}
// Exported operations.
/**
* Returns the number of values in this series.
*
* @return Length.
*/
public int length()
{
return mySeries.length();
}
/**
* Returns the given X value in this series.
*
* @param i Index.
*
* @return The X value in this series at index <TT>i</TT>.
*
* @exception ArrayIndexOutOfBoundsException
* (unchecked exception) Thrown if <TT>i</TT> is not in the range
* <TT>0</TT> .. <TT>length()-1</TT>.
*/
public double x
(int i)
{
double xval = mySeries.x(i);
if (myXFunction != null) xval = myXFunction.f (xval);
return xval;
}
/**
* Returns the given Y value in this series.
*
* @param i Index.
*
* @return The Y value in this series at index <TT>i</TT>.
*
* @exception ArrayIndexOutOfBoundsException
* (unchecked exception) Thrown if <TT>i</TT> is not in the range
* <TT>0</TT> .. <TT>length()-1</TT>.
*/
public double y
(int i)
{
double yval = mySeries.y(i);
if (myYFunction != null) yval = myYFunction.f (yval);
return yval;
}
/**
* Returns the given Z value in this series.
*
* @param i Index.
*
* @return The Z value in this series at index <TT>i</TT>.
*
* @exception ArrayIndexOutOfBoundsException
* (unchecked exception) Thrown if <TT>i</TT> is not in the range
* <TT>0</TT> .. <TT>length()-1</TT>.
*/
public double z
(int i)
{
double zval = mySeries.z(i);
if (myZFunction != null) zval = myZFunction.f (zval);
return zval;
}
}
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