/* 
 * This code is part of Project Waterloo from King's College London
 * 
 *
 * Copyright King's College London  2011-
 * 
 * @author Malcolm Lidierth, King's College London  [Contact]
 * 
 * Project Waterloo is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Project Waterloo 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see .
 *
 */
package kcl.waterloo.graphics.data;

/**
 * Wrapper class for a double[].
 *
 * This class permits double arrays contained as a property in the wrapper to be
 * passed by reference - useful in environments that support that for Java
 * objects but not for primitive data types e.g. MATLAB
 *
 * @author Malcolm Lidierth, King's College London  [Contact]
 */
public class PrimitiveDoubleBuffer {

    /**
     * Data vector.
     */
    double[] data = null;

    /**
     * Constructs a new instance with a zero length vector.
     */
    public PrimitiveDoubleBuffer() {
    }

    /**
     * Constructs a new instance with a vector of length sz.
     *
     * @param sz
     */
    public PrimitiveDoubleBuffer(int sz) {
        data = new double[sz];
    }

    /**
     * Constructs a new instance copying the input.
     *
     * @param arr
     */
    public PrimitiveDoubleBuffer(double[] arr) {
        this(arr, true);
    }

//        /**
//     * Constructs a new instance copying the input.
//     *
//     * @param arr
//     */
//    public PrimitiveDoubleBuffer(Double[] arr) {
//        this(new double[arr.length],false);
//        double[] arr2=getDataRef();
//        for (int k=0; k