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/* ===========================================================
* Orson Charts : a 3D chart library for the Java(tm) platform
* ===========================================================
*
* (C)opyright 2013-2020, by Object Refinery Limited. All rights reserved.
*
* https://github.com/jfree/orson-charts
*
* 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 .
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* If you do not wish to be bound by the terms of the GPL, an alternative
* commercial license can be purchased. For details, please see visit the
* Orson Charts home page:
*
* http://www.object-refinery.com/orsoncharts/index.html
*
*/
package org.jfree.chart3d.data.xyz;
import org.jfree.chart3d.data.Range;
import org.jfree.chart3d.data.function.Function3D;
/**
* A collection of utility methods related to {@link XYZDataset}.
*/
public class XYZDatasetUtils {
/**
* Creates an {@link XYZDataset} by sampling a {@link Function3D} over
* a specified range.
*
* @param f the function ({@code null} not permitted).
* @param key the series key ({@code null} not permitted).
* @param xrange the range of x values ({@code null} not permitted).
* @param xcount the number of x samples (must be at least 2).
* @param zrange the range of z values ({@code null} not permitted).
* @param zcount the number of z-samples (must be at least 2).
*
* @return A dataset containing sampled values from the function.
*/
public static XYZDataset sampleFunction(Function3D f, String key,
Range xrange, double xcount, Range zrange, double zcount) {
return sampleFunction(f, key, xrange.getMin(), xrange.getMax(),
xcount, zrange.getMin(), zrange.getMax(), zcount);
}
/**
* Creates an {@link XYZDataset} by sampling a {@link Function3D} over
* a specified range.
*
* @param f the function ({@code null} not permitted).
* @param key the series key ({@code null} not permitted).
* @param xmin the lower bound of the x-range.
* @param xmax the upper bound of the x-range.
* @param xcount the number of x samples (must be at least 2).
* @param zmin the lower bound of the z-range.
* @param zmax the upper bound of the z-range.
* @param zcount the number of z-samples (must be at least 2).
*
* @return A dataset containing sampled values from the function.
*/
public static XYZDataset sampleFunction(Function3D f, String key,
double xmin, double xmax, double xcount,
double zmin, double zmax, double zcount) {
XYZSeries s = new XYZSeries<>(key);
for (double x = xmin; x <= xmax; x += (xmax - xmin) / xcount) {
for (double z = zmin; z <= zmax; z += (zmax - zmin) / zcount) {
s.add(x, f.getValue(x, z), z);
}
}
XYZSeriesCollection dataset = new XYZSeriesCollection<>();
dataset.add(s);
return dataset;
}
}
