/**
* Java Modular Image Synthesis Toolkit (JMIST)
* Copyright (C) 2008-2013 Bradley W. Kimmel
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
package ca.eandb.jmist.framework.display.visualizer;
import ca.eandb.jmist.framework.color.Color;
import ca.eandb.jmist.framework.color.RGB;
import ca.eandb.jmist.math.Interval;
/**
* A <code>ColorVisualizer</code> that extracts a single channel from the
* provided <code>Color</code>.
*
* @author Brad Kimmel
*/
public final class LinearChannelVisualizer extends StaticColorVisualizer {
/** Serialization version ID. */
private static final long serialVersionUID = 7864894025681399665L;
private final int channel;
private final Interval range;
public LinearChannelVisualizer(int channel, Interval range) {
if (range.isInfinite()) {
throw new IllegalArgumentException("range is infinite");
} else if (range.isEmpty()) {
throw new IllegalArgumentException("range is empty");
} else if (channel < 0) {
throw new IllegalArgumentException("channel < 0");
}
this.channel = channel;
this.range = range;
}
public LinearChannelVisualizer(int channel, double minimum, double maximum) {
this(channel, new Interval(minimum, maximum));
}
public LinearChannelVisualizer(int channel, double maximum) {
this(channel, 0.0, maximum);
}
public LinearChannelVisualizer(int channel) {
this(channel, 0.0, 1.0);
}
/* (non-Javadoc)
* @see ca.eandb.jmist.framework.display.visualizer.ColorVisualizer#apply(ca.eandb.jmist.framework.color.Color)
*/
@Override
public RGB visualize(Color color) {
double value = (color.getValue(channel) - range.minimum()) / range.length();
return new RGB(value, value, value);
}
}