/*
* Copyright (C) 2007-2008-2009 GeoSolutions S.A.S.
* http://www.geo-solutions.it
*
* GPLv3 + Classpath exception
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
package org.geoserver.sldservice.utils.classifier.impl;
import java.awt.Color;
import java.util.ArrayList;
import java.util.List;
import org.geoserver.sldservice.utils.classifier.ColorRamp;
/**
* Red Color Ramp Implementation
*
* @author Alessio Fabiani, GeoSolutions SAS
*
*/
public class RedColorRamp implements ColorRamp {
private int classNum = 0;
private List<Color> colors = new ArrayList<Color>();
public int getNumClasses() {
return classNum;
}
public void revert() {
}
public void setNumClasses(int numClass) {
classNum = numClass+1; //+1 for transparent
createRamp();
}
public List<Color> getRamp() throws Exception {
if (colors == null)
throw new Exception("Class num not setted, color ramp null");
return colors;
}
private void createRamp() {
double step = (225.0 / (double) classNum-1);
colors.add(new Color(0, 0, 0));
for (int i = 1; i < classNum; i++)
colors.add(new Color((int) (step * i + 30), 0, 0));
}
}