thanaphum bannasri

import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.util.Locale; import javax.swing.*; import org.jfree.*; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.XYItemRenderer; import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer; import org.jfree.data.time.Millisecond; import org.jfree.data.time.TimeSeries; import org.jfree.data.time.TimeSeriesCollection; import org.jfree.ui.RectangleInsets; import org.jfree.ui.RefineryUtilities; /* * To change this template, choose Tools | Templates * and open the template in the editor. */ /** * * @author Omerta */ public class MemoryUsageDemo extends Panel{ private TimeSeries total; private TimeSeries free; public MemoryUsageDemo(int maxAge){ super(new BorderLayout()); this.total = new TimeSeries("Total Memory", Millisecond.class); this.total.setMaximumItemAge(maxAge); this.free = new TimeSeries("Free Momory", Millisecond.class); this.free.setMaximumItemAge(maxAge); TimeSeriesCollection dataset = new TimeSeriesCollection(); dataset.addSeries(this.total); dataset.addSeries(this.free); DateAxis domain = new DateAxis("Time"); NumberAxis range = new NumberAxis("Memory"); domain.setTickLabelFont(new Font("SansSerif", Font.PLAIN, 12)); range.setTickLabelFont(new Font("SansSerif", Font.PLAIN, 12)); domain.setLabelFont(new Font("SansSerif", Font.PLAIN, 14)); range.setLabelFont(new Font("SansSerif", Font.PLAIN, 14)); XYItemRenderer renderer = new XYLineAndShapeRenderer(true, false); renderer.setSeriesPaint(0, Color.red); renderer.setSeriesPaint(1, Color.green); renderer.setStroke(new BasicStroke(3f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL)); XYPlot plot = new XYPlot(dataset, domain, range, renderer); plot.setBackgroundPaint(Color.lightGray); plot.setDomainGridlinePaint(Color.white); plot.setRangeGridlinePaint(Color.white); plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0)); domain.setAutoRange(true); domain.setLowerMargin(0.0); domain.setUpperMargin(0.0); domain.setTickLabelsVisible(true); range.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); JFreeChart chart = new JFreeChart("JVM Memory Usage", new Font("SansSerif", Font.BOLD, 24), plot, true); chart.setBackgroundPaint(Color.white); ChartPanel chartPanel = new ChartPanel(chart); chartPanel.setBorder(BorderFactory.createCompoundBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4), BorderFactory.createLineBorder(Color.black))); add(chartPanel); } private void addTotalObservation(double y){ this.total.add(new Millisecond(), y); } private void addFreeObservation(double y){ this.free.add(new Millisecond(), y); } class DataGenerator extends Timer implements ActionListener{ DataGenerator(int interval){ super(interval, null); addActionListener(this); } public void actionPerformed(ActionEvent event) { long f = Runtime.getRuntime().freeMemory(); long t = Runtime.getRuntime().totalMemory(); addTotalObservation(t); addFreeObservation(f); } } public static void main(String[] args) { JFrame frame = new JFrame("Memory Usage Demo"); MemoryUsageDemo panel = new MemoryUsageDemo(60000); frame.getContentPane().add(panel, BorderLayout.CENTER); frame.setBounds(200, 120, 600, 280); frame.setVisible(true); panel.new DataGenerator(100).start(); frame.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); }}); } }

James Sabre wrote:

thanaphum bannasri wrote:
I would like to know I will draw network graph xy(Line Graph) realtime . How I do it easy?

I suspect you won't like my answer. JFreeChart is difficult to use effectively without the documentation and the examples that come with that documentation but you have to buy the documentation. Using JFreeChart for creating xy line charts is relatively easy but the detail of what you want to achieve matters. How you use this in conjunction with jpcap is a different matter.

P.S. Be careful in this context to distinguish between charts (xy, pie, histograms etc) and graphs (nodes and links).

Oh Sorry I don't know . I talk about charts xy . Have you a great solution for me? . Should I use api that easy to apply?

Ulf Dittmer wrote:What I meant is: what is a "network graph xy (Line Graph) realtime"? What's along the X axis? What's along the Y axis? TellTheDetails.

Also, is this question about gathering data using jpcap, or about using JFreeChart to draw something?

X axis is Time It change every 5 second. Y axis is Value of bandwidth that used (kbps).help me please....

Ulf Dittmer wrote:What are you trying to graph? In other words, what -exactly- do you mean by "network graph"? Also, what do you have so far,. and where are you stuck making progress?

I would like to know I will draw network graph xy(Line Graph) realtime . How I do it easy?

I've used jpcap + freechart (api for java) but I can't get graph, how i do later?
(sorry my english's not good)