/*******************************************************************************
* Breakout Cave Survey Visualizer
*
* Copyright (C) 2014 James Edwards
*
* jedwards8 at fastmail dot fm
*
* This program 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 2 of the License, or (at your option) any later
* version.
*
* This program 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.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 51
* Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*******************************************************************************/
package org.andork.util;
public class Reparam {
/**
* Performs linear reparameterization.
*
* @param x
* the value to reparameterize
* @param a1
* the start of the first range
* @param a2
* the end of the first range
* @param b1
* the start of the second range
* @param b2
* the end of the second range
*/
public static float linear(float x, float a1, float a2, float b1, float b2) {
return b1 + (x - a1) * (b2 - b1) / (a2 - a1);
}
/**
* Performs linear reparameterization.
*
* @param x
* the values to reparameterize
* @param a1
* the start of the first range
* @param a2
* the end of the first range
* @param b1
* the start of the second range
* @param b2
* the end of the second range
* @param out
* the array to place the result in
*/
public static void linear(float[] x, float a1, float a2, float b1, float b2, float[] out) {
for (int i = 0; i < x.length; i++) {
out[i] = linear(x[i], a1, a2, b1, b2);
}
}
}