Revision 2669 branches/CqCMSDvp/libraries/libCq CMS for java.old/src/org/cresques/io/raster/ComputeMinMaxFilter.java
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/* |
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* Cresques Mapping Suite. Graphic Library for constructing mapping applications. |
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* |
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* Copyright (C) 2004-5. |
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* |
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* Copyright (C) 2004-5. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA. |
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* |
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* For more information, contact: |
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*
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* |
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* cresques@gmail.com |
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*/ |
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package org.cresques.io.raster; |
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/** |
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* Calcula el m?ximo y el m?nimo de un raster, As? como el segundo menor valor y
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* Calcula el m?ximo y el m?nimo de un raster, As? como el segundo menor valor y |
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* el segundo mayor valor. |
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* @author Luis W. Sevilla (sevilla_lui@gva.es) |
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* @author Nacho Brodin (brodin_ign@gva.es) |
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*/ |
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public abstract class ComputeMinMaxFilter extends RasterFilter {
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protected int [] min = {Integer.MAX_VALUE,Integer.MAX_VALUE,Integer.MAX_VALUE};
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protected int [] max = {Integer.MIN_VALUE,Integer.MIN_VALUE,Integer.MIN_VALUE};
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protected int [] secondMin = {Integer.MAX_VALUE,Integer.MAX_VALUE,Integer.MAX_VALUE};
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protected int [] secondMax = {Integer.MIN_VALUE,Integer.MIN_VALUE,Integer.MIN_VALUE};
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protected int [] tmpMin = {Integer.MAX_VALUE,Integer.MAX_VALUE,Integer.MAX_VALUE};
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protected int [] tmpMax = {Integer.MIN_VALUE,Integer.MIN_VALUE,Integer.MIN_VALUE};
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/** |
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* Constructor |
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* |
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*/ |
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public ComputeMinMaxFilter(){
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super(); |
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} |
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/** |
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* Operaciones que se realizan antes de la ejecuci?n del filtro |
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*/ |
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public void pre(){
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//Obtenci?n de par?metros comunes a todos |
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this.stats = (RasterStats)params.get("stats");
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this.stats.tailPercent = 0D; |
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//Operaciones del filtro concreto |
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this.min = new int[stats.minBandValue.length]; |
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this.max = new int[stats.maxBandValue.length]; |
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this.secondMin = new int[stats.minBandValue.length]; |
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this.secondMax = new int[stats.maxBandValue.length]; |
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this.tmpMin = new int[stats.minBandValue.length]; |
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this.tmpMax = new int[stats.maxBandValue.length]; |
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for (int i=0; i<min.length; i++) {
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secondMin[i] = tmpMin[i] = min[i] = Integer.MAX_VALUE; |
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secondMax[i] = tmpMax[i] = max[i] = Integer.MIN_VALUE; |
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} |
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} |
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/** |
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* Operaciones que se realizan despu?s de la ejecuci?n del filtro |
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*/ |
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public void post(){
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protected int[] min = {
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Integer.MAX_VALUE, Integer.MAX_VALUE, |
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Integer.MAX_VALUE |
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}; |
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protected int[] max = {
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Integer.MIN_VALUE, Integer.MIN_VALUE, |
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Integer.MIN_VALUE |
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}; |
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protected int[] secondMin = {
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Integer.MAX_VALUE, Integer.MAX_VALUE, |
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Integer.MAX_VALUE |
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}; |
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protected int[] secondMax = {
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Integer.MIN_VALUE, Integer.MIN_VALUE, |
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Integer.MIN_VALUE |
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}; |
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protected int[] tmpMin = {
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Integer.MAX_VALUE, Integer.MAX_VALUE, |
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Integer.MAX_VALUE |
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}; |
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protected int[] tmpMax = {
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Integer.MIN_VALUE, Integer.MIN_VALUE, |
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Integer.MIN_VALUE |
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}; |
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for (int i=0; i<3; i++) {
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stats.minBandValue[i] = min[i]; |
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stats.maxBandValue[i] = max[i]; |
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stats.secondMinBandValue[i] = secondMin[i]; |
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stats.secondMaxBandValue[i] = secondMax[i]; |
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} |
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} |
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/** |
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* Obtiene le m?nimo para una banda dada |
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* @param bandNr banda |
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* @return valor m?nimo |
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*/ |
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public int getMin(int bandNr) {
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return min[bandNr]; |
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} |
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/** |
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* Constructor |
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* |
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*/ |
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public ComputeMinMaxFilter() {
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super(); |
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} |
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/** |
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* Obtiene el m?ximo para una banda dada |
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* @param bandNr banda |
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* @return valor m?ximo |
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*/ |
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public int getMax(int bandNr) {
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return max[bandNr]; |
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} |
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/** |
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* Obtiene el objeto stats con el calculo de m?ximos y m?nimos |
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*/ |
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public Object getResult(String name){
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if(name.equals("stats"))
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return stats; |
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else return null; |
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} |
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/** |
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* Operaciones que se realizan antes de la ejecuci?n del filtro |
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*/ |
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public void pre() {
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//Obtenci?n de par?metros comunes a todos |
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this.stats = (RasterStats) params.get("stats");
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this.stats.tailPercent = 0D; |
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//Operaciones del filtro concreto |
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this.min = new int[stats.minBandValue.length]; |
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this.max = new int[stats.maxBandValue.length]; |
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this.secondMin = new int[stats.minBandValue.length]; |
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this.secondMax = new int[stats.maxBandValue.length]; |
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this.tmpMin = new int[stats.minBandValue.length]; |
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this.tmpMax = new int[stats.maxBandValue.length]; |
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for (int i = 0; i < min.length; i++) {
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secondMin[i] = tmpMin[i] = min[i] = Integer.MAX_VALUE; |
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secondMax[i] = tmpMax[i] = max[i] = Integer.MIN_VALUE; |
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} |
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} |
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/** |
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* Operaciones que se realizan despu?s de la ejecuci?n del filtro |
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*/ |
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public void post() {
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for (int i = 0; i < 3; i++) {
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stats.minBandValue[i] = min[i]; |
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stats.maxBandValue[i] = max[i]; |
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stats.secondMinBandValue[i] = secondMin[i]; |
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stats.secondMaxBandValue[i] = secondMax[i]; |
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} |
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} |
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/** |
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* Obtiene le m?nimo para una banda dada |
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* @param bandNr banda |
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* @return valor m?nimo |
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*/ |
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public int getMin(int bandNr) {
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return min[bandNr]; |
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} |
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/** |
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* Obtiene el m?ximo para una banda dada |
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* @param bandNr banda |
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* @return valor m?ximo |
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*/ |
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public int getMax(int bandNr) {
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return max[bandNr]; |
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} |
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/** |
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* Obtiene el objeto stats con el calculo de m?ximos y m?nimos |
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*/ |
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public Object getResult(String name) {
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if (name.equals("stats")) {
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return stats; |
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} else {
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return null; |
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} |
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} |
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} |
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