[英]How to plot more than one graph on JFreechart graph
I am working on an arduino project where Im supposed to plot graph using serial read. 我正在一个arduino项目中,我应该使用串行读取来绘制图形。 I am using JFreechart.
我正在使用JFreechart。 In my code I am able to plot only one graph.
在我的代码中,我只能绘制一个图形。 But I need to plot 4 or multiple plots on the same graph.
但是我需要在同一张图上绘制4个或多个图。
Im getting some numerical values which is delimited by ",". 我得到了一些以“,”为界的数值。 Following is the code.
以下是代码。 Please help me in plotting 4 or multiple graphs.
请帮助我绘制4个或多个图形。 I can plot one but not more than one.
我可以绘制一张,但不能超过一张。
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Scanner;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import com.fazecast.jSerialComm.SerialPort;
public class SerialDataRead {
static SerialPort chosenPort;
public static void main(String[] args) {
// TODO Auto-generated method stub
final JFrame window = new JFrame();
window.setTitle("Sensor graph GUI");
window.setSize(1200,800);
window.setLayout(new BorderLayout());
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel basePanel = new JPanel();
basePanel.setSize(900, 700);
final JComboBox portList = new JComboBox();
final JButton connectButton = new JButton("Connect");
JPanel topPanel = new JPanel();
window.add(topPanel, BorderLayout.NORTH);
topPanel.add(portList);
topPanel.add(connectButton);
SerialPort[] portNames = SerialPort.getCommPorts();
for(int i =0; i < portNames.length; i++)
portList.addItem(portNames[i].getSystemPortName());
final XYSeries series = new XYSeries("Serial port data reading");
final XYSeries series2 = new XYSeries("Serial port data reading");
XYSeriesCollection dataset = new XYSeriesCollection(series);
JFreeChart chart = ChartFactory.createXYLineChart("Serial port reading", "Time (seconds)", "adc reading", dataset);
XYPlot plot = (XYPlot) chart.getPlot();
plot.setBackgroundPaint(Color.WHITE);
NumberAxis domain = (NumberAxis) plot.getDomainAxis();
NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
//domain.setRange(0.00, 40.00);
rangeAxis.setRange(0.0, 505.0);
window.add(new ChartPanel(chart), BorderLayout.CENTER);
connectButton.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent arg0){
if(connectButton.getText().equals("Connect")){
chosenPort = SerialPort.getCommPort(portList.getSelectedItem().toString());
chosenPort.setComPortTimeouts(SerialPort.TIMEOUT_SCANNER, 0, 0);
if(chosenPort.openPort()){
connectButton.setText("Disconnect");
portList.setEnabled(false);
}
Thread thread = new Thread(){
@Override public void run(){
Scanner scanner = new Scanner(chosenPort.getInputStream());
int x =0;
while(scanner.hasNextLine()){
String line = scanner.nextLine();
String[] values = line.split(",");
int number = Integer.parseInt(values[0]);
int number2 = Integer.parseInt(values[1]);
series.add(x++, number);
//series2.add(x++, number2);
XYSeriesCollection my_data_series= new XYSeriesCollection();
// add series using addSeries method
my_data_series.addSeries(series);
// my_data_series.addSeries(series2);
// JFreeChart XYLineChart=ChartFactory.createXYLineChart("Team - Number of Wins","Year","Win Count",my_data_series,PlotOrientation.VERTICAL,true,true,false);
//window.repaint();
System.out.println(Integer.parseInt(values[1]));
}
scanner.close();
}
};
thread.start();
}else{
chosenPort.closePort();
portList.setEnabled(true);
connectButton.setText("Connect");
}
}
});
window.setVisible(true);
}
} }
You program is incorrectly synchronized in that it updates Swing GUI components from a thread other than the event dispatch thread . 您的程序未正确同步,因为它从事件分配线程以外的线程更新Swing GUI组件。 Use
SwingWorker
, illustrated here , to collect data in your implementation of doInBackground()
, publish()
interim results, and update each series in your implementation of process()
, which will be called on the event dispatch thread. 使用此处所示的
SwingWorker
来收集doInBackground()
实现中的数据, publish()
中间结果,并更新process()
实现中的每个系列,这将在事件分发线程上调用。 You can add()
values to the individual XYSeries
that comprise your XYSeriesCollection
, as shown here . 您可以
add()
值的个体XYSeries
组成的XYSeriesCollection
,如图所示这里 。
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