private void setStx(Stx stx) {
if (stx != null) {
HistogramPanelModel.HistogramConfig config = createHistogramConfig();
if (config == null) {
return;
}
if (!model.hasStx(config)) {
model.setStx(config, stx);
}
dataset = new XIntervalSeriesCollection();
final int[] binCounts = stx.getHistogramBins();
final RasterDataNode raster = getRaster();
final XIntervalSeries series = new XIntervalSeries(raster.getName());
final Histogram histogram = stx.getHistogram();
for (int i = 0; i < binCounts.length; i++) {
final double xMin = histogram.getBinLowValue(0, i);
final double xMax =
i < binCounts.length - 1
? histogram.getBinLowValue(0, i + 1)
: histogram.getHighValue(0);
series.add(xMin, xMin, xMax, binCounts[i]);
}
dataset.addSeries(series);
}
handleStxChange();
}
@Override
public String getDataAsText() {
HistogramPanelModel.HistogramConfig config = createHistogramConfig();
if (!model.hasStx(config)) {
return null;
}
Stx stx = model.getStx(config);
final int[] binVals = stx.getHistogramBins();
final int numBins = binVals.length;
final double min = stx.getMinimum();
final double max = stx.getMaximum();
final StringBuilder sb = new StringBuilder(16000);
sb.append("Product name:\t").append(getRaster().getProduct().getName()).append("\n");
sb.append("Dataset name:\t").append(getRaster().getName()).append("\n");
sb.append('\n');
sb.append("Histogram minimum:\t")
.append(min)
.append("\t")
.append(getRaster().getUnit())
.append("\n");
sb.append("Histogram maximum:\t")
.append(max)
.append("\t")
.append(getRaster().getUnit())
.append("\n");
sb.append("Histogram bin size:\t")
.append(
getRaster().isLog10Scaled()
? ("NA\t")
: ((max - min) / numBins + "\t") + getRaster().getUnit() + "\n");
sb.append("Histogram #bins:\t").append(numBins).append("\n");
sb.append('\n');
sb.append("Bin center value");
sb.append('\t');
sb.append("Bin counts");
sb.append('\n');
for (int i = 0; i < numBins; i++) {
sb.append(min + ((i + 0.5) * (max - min)) / numBins);
sb.append('\t');
sb.append(binVals[i]);
sb.append('\n');
}
return sb.toString();
}
@Override
public void done() {
try {
Stx stx = get();
if (stx == null) {
return;
}
if (stx.getSampleCount() > 0) {
if (autoMinMaxEnabled) {
histogramComputing = true;
xAxisRangeControl.adjustComponents(
stx.getHistogramScaling().scale(stx.getMinimum()),
stx.getHistogramScaling().scale(stx.getMaximum()),
4);
histogramComputing = false;
}
setStx(stx);
} else {
SnapDialogs.showError(
"Either the selected ROI is empty or no pixels have been found within the minimum and maximum values specified.\n"
+ "No valid histogram could be computed.\n");
handleStxChange();
}
} catch (ExecutionException e) {
if (histogramPlotConfig.useRoiMask) {
SnapDialogs.showError(
"An internal error occurred.\n"
+ "No valid histogram could be computed.\n"
+ "Possible reason: The selected ROI is empty.");
} else {
SnapDialogs.showError(
"An internal error occurred.\n"
+ "No valid histogram could be computed. Reason:\n"
+ e.getMessage());
}
handleStxChange();
} catch (InterruptedException e) {
SnapDialogs.showError("The histogram computation has been interrupted.");
handleStxChange();
}
}