Java tutorial
// // 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. import java.awt.BasicStroke; import java.awt.Color; import javax.swing.JFrame; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.Marker; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.ValueMarker; import org.jfree.chart.plot.XYPlot; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; public class graph_baseband extends JFrame { private static final long serialVersionUID = 1L; private int _active = 0; private XYSeries fftseries = new XYSeries("FFT"); private XYSeriesCollection dataset; private XYSeries series1 = new XYSeries("line1"); private XYSeries series2 = new XYSeries("line2"); private ChartPanel chartPanel; JFreeChart chart; XYPlot plot; public graph_baseband() { } public void showGraph() { dataset = new XYSeriesCollection(); dataset.addSeries(fftseries); // dataset.addSeries(series1); //dataset.addSeries(series2); chart = ChartFactory.createXYLineChart("XY Chart", // Title "x-axis", // x-axis Label "y-axis", // y-axis Label dataset, // Dataset PlotOrientation.VERTICAL, // Plot Orientation true, // Show Legend true, // Use tooltips false); chartPanel = new ChartPanel(chart); // default size chartPanel.setPreferredSize(new java.awt.Dimension(500, 270)); // add it to our application setContentPane(chartPanel); plot = chart.getXYPlot(); this.pack(); this.setVisible(true); _active = 1; } public void drawfft(double[] data) { if (!fftseries.isEmpty()) fftseries.clear(); for (int i = 0; i < data.length; i++) { fftseries.add(i, 10 * Math.log10(data[i])); } if (_active == 0) showGraph(); } public void drawlinedual(double[] data1, double[] data2, int count) { if (!series1.isEmpty()) { series1.clear(); series2.clear(); } for (int i = 0; (i < data1.length) && (i < count); i++) { series1.add(i, (data1[i])); series2.add(i, (data2[i])); } if (_active == 0) showGraph(); } public void clearlines() { if (_active > 0) dataset.removeAllSeries(); } public void drawsingle(double[] data) { if (!fftseries.isEmpty()) fftseries.clear(); for (int i = 0; i < data.length; i++) { fftseries.add(i, (data[i])); } if (_active == 0) showGraph(); } public void addMarkers(double pos1, double pos2) { if (!fftseries.isEmpty()) { Marker m1 = new ValueMarker(pos1); Marker m2 = new ValueMarker(pos2); m1.setStroke(new BasicStroke(2)); m2.setStroke(new BasicStroke(2)); m1.setPaint(Color.RED); m2.setPaint(Color.GREEN); plot.addDomainMarker(m1); plot.addDomainMarker(m2); } } public void addMarkers(double[] peak) { if (_active > 0) { for (int i = 0; i < peak.length; i++) { Marker m1 = new ValueMarker(peak[i]); m1.setStroke(new BasicStroke((float) .5)); m1.setPaint(Color.GRAY); plot.addDomainMarker(m1); } } } public void addMarkers(double peak) { if (_active > 0) { Marker m1 = new ValueMarker(peak); m1.setStroke(new BasicStroke((float) .5)); m1.setPaint(Color.GRAY); plot.addDomainMarker(m1); } } public void addMarkers(double peak, Color color) { if (_active > 0) { Marker m1 = new ValueMarker(peak); m1.setStroke(new BasicStroke((float) 1)); m1.setPaint(color); plot.addDomainMarker(m1); } } public void clearMarkers() { if (_active > 0) plot.clearDomainMarkers(); } }