public FlatField getImageDataFrom(final float channel) {
FlatField imageData = null;
try {
MultiDimensionSubset select = null;
Hashtable table = dataChoice.getProperties();
Enumeration keys = table.keys();
while (keys.hasMoreElements()) {
Object key = keys.nextElement();
if (key instanceof MultiDimensionSubset) {
select = (MultiDimensionSubset) table.get(key);
}
}
HashMap subset = select.getSubset();
imageData = data.getImage(channel, subset);
uniqueRangeType = RealType.getRealType(rangeType.getName() + "_" + cnt++);
imageData = changeRangeType(imageData, uniqueRangeType);
} catch (Exception e) {
LogUtil.logException("MultiSpectralDisplay.getImageDataFrom", e);
}
return imageData;
}
// TODO: generalize this so that you can grab the image data for any
// channel
public FlatField getImageData() {
try {
if ((imageExpired) || (image == null)) {
imageExpired = false;
MultiDimensionSubset select = null;
Hashtable table = dataChoice.getProperties();
Enumeration keys = table.keys();
while (keys.hasMoreElements()) {
Object key = keys.nextElement();
if (key instanceof MultiDimensionSubset) {
select = (MultiDimensionSubset) table.get(key);
}
}
HashMap subset = select.getSubset();
image = data.getImage(waveNumber, subset);
image = changeRangeType(image, uniqueRangeType);
}
} catch (Exception e) {
LogUtil.logException("MultiSpectralDisplay.getImageData", e);
}
return image;
}
private void init() throws VisADException, RemoteException {
HydraDataSource source = (HydraDataSource) dataChoice.getDataSource();
// TODO revisit this, may want to move method up to base class HydraDataSource
if (source instanceof SuomiNPPDataSource) {
data = ((SuomiNPPDataSource) source).getMultiSpectralData(dataChoice);
}
if (source instanceof MultiSpectralDataSource) {
data = ((MultiSpectralDataSource) source).getMultiSpectralData(dataChoice);
}
waveNumber = data.init_wavenumber;
try {
spectrum = data.getSpectrum(new int[] {1, 1});
} catch (Exception e) {
LogUtil.logException("MultiSpectralDisplay.init", e);
}
domainSet = (Gridded1DSet) spectrum.getDomainSet();
initialRangeX = getXRange(domainSet);
initialRangeY = data.getDataRange();
domainType = getDomainType(spectrum);
rangeType = getRangeType(spectrum);
master = new XYDisplay(DISP_NAME, domainType, rangeType);
setDisplayMasterAttributes(master);
// set up the x- and y-axis
xmap = new ScalarMap(domainType, Display.XAxis);
ymap = new ScalarMap(rangeType, Display.YAxis);
xmap.setRange(initialRangeX[0], initialRangeX[1]);
ymap.setRange(initialRangeY[0], initialRangeY[1]);
display = master.getDisplay();
display.addMap(xmap);
display.addMap(ymap);
display.addDisplayListener(this);
new RubberBandBox(this, xmap, ymap);
if (displayControl == null) { // - add in a ref for the default spectrum, ie no DisplayControl
DataReferenceImpl spectrumRef = new DataReferenceImpl(hashCode() + "_spectrumRef");
spectrumRef.setData(spectrum);
addRef(spectrumRef, Color.WHITE);
}
if (data.hasBandNames()) {
bandSelectComboBox = new JComboBox(data.getBandNames().toArray());
bandSelectComboBox.setSelectedItem(data.init_bandName);
bandSelectComboBox.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
String bandName = (String) bandSelectComboBox.getSelectedItem();
if (bandName == null) return;
HashMap<String, Float> bandMap = data.getBandNameMap();
if (bandMap == null) return;
if (!bandMap.containsKey(bandName)) return;
setWaveNumber(bandMap.get(bandName));
}
});
}
}