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2d chart tutorial can benchmark large time serie (500k points)

This commit is contained in:
Martin Pernollet 2014-11-20 14:23:30 +01:00
parent 75f5ff3b54
commit 97c28bcaf8
1 changed files with 56 additions and 25 deletions
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53
jzy3d-tutorials/src/main/java/org/jzy3d/demos/chart2d/Chart2dDemo.java
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@ -25,12 +25,17 @@ import org.jzy3d.plot3d.primitives.axes.layout.renderers.PitchTickRenderer;
import org.jzy3d.ui.LookAndFeel;
/**
* Showing a pair of 2d charts to represent pitch and amplitude variation of an audio signal
* Showing a pair of 2d charts to represent pitch and amplitude variation of an
* audio signal.
*
* When using large number of samples, run program with VM argument : -Xmx1024m
*
* @author Martin Pernollet
*/
public class Chart2dDemo {
public static float duration = 15f;
public static float duration = 60f;
/** milisecond distance between two generated samples*/
public static int interval = 50;
public static int maxfreq = 880;
public static int nOctave = 5;
@ -38,9 +43,34 @@ public class Chart2dDemo {
PitchAmpliControlCharts log = new PitchAmpliControlCharts(duration, maxfreq, nOctave);
new TimeChartWindow(log.getCharts());
generateSamplesInTime(log);
// generateSamples(log, 500000);
}
public static void generateSamples(PitchAmpliControlCharts log, int n) throws InterruptedException {
System.out.println("will generate " + n + " samples");
for (int i = 0; i < n; i++) {
// Random audio info
double pitch = Math.random() * maxfreq;
double ampli = Math.random();
// Add to time series
log.seriePitch.add(time(n, i), pitch);
log.serieAmpli.add(time(n, i), ampli);
}
}
public static double time(int n, int i) {
return ((double) i / n) * duration;
}
public static void generateSamplesInTime(PitchAmpliControlCharts log) throws InterruptedException {
System.out.println("will generate approx. " + duration * 1000 / interval + " samples");
start();
while(elapsed()<duration){
while (elapsed() < duration) {
// Random audio info
double pitch = Math.random() * maxfreq;
double ampli = Math.random();
@ -50,11 +80,11 @@ public class Chart2dDemo {
log.serieAmpli.add(elapsed(), ampli);
// Wait a bit
Thread.sleep(50);
Thread.sleep(interval);
}
}
/** Hold 2 charts, 2 time series, and 2 drawable lines*/
/** Hold 2 charts, 2 time series, and 2 drawable lines */
public static class PitchAmpliControlCharts {
public Chart2d pitchChart;
public Chart2d ampliChart;
@ -76,7 +106,7 @@ public class Chart2dDemo {
pitchLineStrip = (ConcurrentLineStrip) seriePitch.getDrawable();
ampliChart = new Chart2d();
ampliChart.asTimeChart(timeMax, 0, 1f, "Time", "Amplitude");
ampliChart.asTimeChart(timeMax, 0, 1.1f, "Time", "Amplitude");
serieAmpli = ampliChart.getSerie("amplitude", Serie2d.Type.LINE);
serieAmpli.setColor(Color.RED);
amplitudeLineStrip = (ConcurrentLineStrip) serieAmpli.getDrawable();
@ -90,16 +120,17 @@ public class Chart2dDemo {
}
}
/** A frame to show a list of charts*/
/** A frame to show a list of charts */
public static class TimeChartWindow extends JFrame {
private static final long serialVersionUID = 7519209038396190502L;
public TimeChartWindow(List<Chart> charts) throws IOException {
LookAndFeel.apply();
String lines = "[300px]";
String columns = "[500px,grow]";
setLayout(new MigLayout("", columns, lines));
int k=0;
for(Chart c: charts){
int k = 0;
for (Chart c : charts) {
addChart(c, k++);
}
windowExitListener();
@ -108,12 +139,12 @@ public class Chart2dDemo {
setVisible(true);
}
public void addChart(Chart chart, int id){
public void addChart(Chart chart, int id) {
JPanel chartPanel = new JPanel(new BorderLayout());
Border b = BorderFactory.createLineBorder(java.awt.Color.black);
chartPanel.setBorder(b);
chartPanel.add((java.awt.Component) chart.getCanvas(), BorderLayout.CENTER);
add(chartPanel, "cell 0 "+id+", grow");
add(chartPanel, "cell 0 " + id + ", grow");
}
public void windowExitListener() {