Example2.java

/**
 * Copyright 2015-2017 Knowm Inc. (http://knowm.org) and contributors.
 * Copyright 2011-2015 Xeiam LLC (http://xeiam.com) and contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.knowm.xchart.standalone;

import java.util.ArrayList;
import java.util.List;

import org.knowm.xchart.SwingWrapper;
import org.knowm.xchart.XYChart;
import org.knowm.xchart.XYChartBuilder;
import org.knowm.xchart.XYSeries;
import org.knowm.xchart.style.markers.SeriesMarkers;

/**
 * Create a Chart matrix
 *
 * @author timmolter
 */
public class Example2 {

  public static void main(String[] args) {

    int numCharts = 4;

    List<XYChart> charts = new ArrayList<XYChart>();

    for (int i = 0; i < numCharts; i++) {
      XYChart chart = new XYChartBuilder().xAxisTitle("X").yAxisTitle("Y").width(600).height(400).build();
      chart.getStyler().setYAxisMin(-10.0);
      chart.getStyler().setYAxisMax(10.0);
      XYSeries series = chart.addSeries("" + i, null, getRandomWalk(200));
      series.setMarker(SeriesMarkers.NONE);
      charts.add(chart);
    }
    new SwingWrapper<XYChart>(charts).displayChartMatrix();
  }

  /**
   * Generates a set of random walk data
   *
   * @param numPoints
   * @return
   */
  private static double[] getRandomWalk(int numPoints) {

    double[] y = new double[numPoints];
    y[0] = 0;
    for (int i = 1; i < y.length; i++) {
      y[i] = y[i - 1] + Math.random() - .5;
    }
    return y;
  }
}