org.diirt.datasource.extra.Interpolation Maven / Gradle / Ivy

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/**
 * Copyright (C) 2010-14 diirt developers. See COPYRIGHT.TXT
 * All rights reserved. Use is subject to license terms. See LICENSE.TXT
 */
package org.diirt.datasource.extra;

/**
 * Defines a way to interpolate some scattered points to an equally distanced
 * grid.
 * 
 * @author carcassi
 */
public interface Interpolation {
    
    /**
     * Returns a set of interpolated y, equally spaced.
     * 
     * @param x an array of position value, assumed to be monotonically increasing
     * @param y an array of values, assumed to be the same length of x
     * @param nSamples the number of samples to be returned
     * @return a new array with nSamples interpolated values
     */
    public double[] interpolate(double[] x, double[] y, int nSamples);
}