private PCMReader buildLOBFFilter(Shell shell) throws IncompatibleDataTypeError {
PCMReader reader = new PCMReader();
PlotData timeData = new PlotData();
PlotCanvas timeCanvas = new PlotCanvas(shell, timeData);
timeCanvas.setup();
timeData.setDataPerHeight(0x20000000 / 1);
timeData.setDataPerWidth(30000);
timeData.xoffset = 5000;
timeData.title = "Input";
reader.addListener(timeCanvas);
LocalMaximaFilter filter1 = new LocalMaximaFilter();
filter1.connectTo(reader);
LOBFFilter filter2 = new LOBFFilter(100);
PlotData maData = new PlotData();
PlotCanvas maCanvas = new PlotCanvas(shell, maData);
maCanvas.setup();
maData.setDataPerHeight(0x20000000);
maData.setDataPerWidth(30000);
maData.xoffset = 5000;
maData.title = "LOBF";
filter2.addListener(maCanvas);
filter2.connectTo(filter1);
// spectrumData.spectrum = freqListener.getSpectrum();
// spectrumData.freq_from = freqListener.getFreq_from();
// spectrumData.freq_to = freqListener.getFreq_to();
return reader;
}
private PCMReader buildDifferentialFilter(Shell shell) throws IncompatibleDataTypeError {
PCMReader reader = new PCMReader();
PlotData timeData = new PlotData();
PlotCanvas timeCanvas = new PlotCanvas(shell, timeData);
timeCanvas.setup();
timeData.setDataPerHeight(0x20000000 / 1);
timeData.setDataPerWidth(30000);
timeData.xoffset = 5000;
timeData.title = "Input";
reader.addListener(timeCanvas);
LocalMaximaFilter filter1 = new LocalMaximaFilter();
filter1.connectTo(reader);
DifferentialFilter filter2 = new DifferentialFilter(10.0);
PlotData maData = new PlotData();
PlotCanvas maCanvas = new PlotCanvas(shell, maData);
maCanvas.setup();
maData.setDataPerHeight(0x20000000 / 1);
maData.setDataPerWidth(30000);
maData.xoffset = 5000;
maData.title = "Differential";
filter2.addListener(maCanvas);
filter2.connectTo(filter1);
return reader;
}
private PCMReader buildFFTFilter(final Shell shell, boolean generatePNG)
throws IncompatibleDataTypeError {
PCMReader reader = new PCMReader();
PlotData timeData = new PlotData();
PlotCanvas timeCanvas = new PlotCanvas(shell, timeData);
timeCanvas.setup();
timeData.setDataPerHeight(0x20000000 / 1);
timeData.setDataPerWidth(30000);
timeData.xoffset = 5000;
timeData.title = "Input";
reader.addListener(timeCanvas);
final FFTFilter filter1 = new FFTFilter(4096, 1024);
PlotData maData = new PlotData();
PlotCanvas maCanvas = new PlotCanvas(shell, maData);
maCanvas.setup();
maData.setDataPerHeight(5000);
maData.setDataPerWidth(30000);
maData.xoffset = 5000;
maData.title = "FFT";
filter1.addListener(maCanvas);
if (generatePNG) {
filter1.addListener(
new FilterListener() {
@Override
public void filterOutput(FilterData output) {
if (output == null) {
return;
}
final FFTOutputData op = (FFTOutputData) output;
final Display display = shell.getDisplay();
display.asyncExec(
new Runnable() {
@Override
public void run() {
Image image = new Image(display, 800, 600);
GC gc = new GC(image);
gc.setBackground(display.getSystemColor(SWT.COLOR_WHITE));
gc.fillRectangle(image.getBounds());
gc.drawString("Hello", 10, 20);
Complex[] spectrum = op.spectrum;
for (int i = 0; i < spectrum.length; i++) {
gc.drawLine(i, 0, i, (int) (spectrum[i].re() / 1e8));
}
PNGExporter exporter = new PNGExporter();
exporter.export(image.getImageData(), new File("spectro-" + op.x + ".png"));
image.dispose();
}
});
}
@Override
public void filterEnd(long count) {}
});
} else {
filter1.addListener(
new FilterListener() {
@Override
public void filterOutput(FilterData output) {
if (output == null) {
return;
}
final FFTOutputData op = (FFTOutputData) output;
Complex[] spectrum = op.spectrum;
for (int i = 0; i < 200; i++) {
System.out.print(spectrum[i].abs() + ",");
}
System.out.println();
}
@Override
public void filterEnd(long count) {}
});
}
filter1.connectTo(reader);
return reader;
}