protected String getChannelLabelText(PlotDataProvider channel) {
String respname = "No response";
try {
if (channel.getResponse() != null) {
respname = channel.getResponse().getFileName();
}
} catch (TraceViewException e) {
// do nothing
}
return "<html>"
+ channel.getName()
+ "<br><i>Start time: </i> "
+ TimeInterval.formatDate(
channel.getTimeRange().getStartTime(), TimeInterval.DateFormatType.DATE_FORMAT_MIDDLE)
+ "<br><i>Duration: </i> "
+ channel.getTimeRange().convert()
+ "<br><i>Sample rate: </i>"
+ channel.getSampleRate()
+ " ms <br>"
+ respname
+ "</html>";
}
/**
* @param input List of traces to process
* @param filter Filter applied to traces before correlation
* @param ti Time interval to define processed range
* @return jFreeChart dataset of trace data in polar coordinates
* @throws XMAXException if sample rates differ, gaps in the data, or no data for a channel
*/
private XYDataset createDataset(List<PlotDataProvider> input, IFilter filter, TimeInterval ti)
throws XMAXException {
XYSeriesCollection dataset = new XYSeriesCollection();
PlotDataProvider channel1 = input.get(0); // N/S
PlotDataProvider channel2 = input.get(1); // E/W
if (channel1.getSampleRate() != channel2.getSampleRate())
throw new XMAXException("Channels have different sample rate");
XYSeries series = new XYSeries(channel1.getName() + " " + channel2.getName(), false);
double sampleRate;
List<Segment> segments1;
if (channel1.getRotation() != null && channel1.isRotated()) {
segments1 = channel1.getRawData(channel1.getRotation(), ti);
} else segments1 = channel1.getRawData(ti);
int[] intData1 = new int[0];
if (segments1.size() > 0) {
long segment_end_time = 0;
sampleRate = segments1.get(0).getSampleRate();
for (Segment segment : segments1) {
if (segment.getSampleRate() != sampleRate) {
throw new XMAXException(
"You have data with different sample rate for channel " + channel1.getName());
}
if (segment_end_time != 0
&& Segment.isDataBreak(
segment_end_time, segment.getStartTime().getTime(), sampleRate)) {
throw new XMAXException("You have gap in the data for channel " + channel1.getName());
}
segment_end_time = segment.getEndTime().getTime();
intData1 = IstiUtilsMath.padArray(intData1, segment.getData(ti).data);
}
} else {
throw new XMAXException("You have no data for channel " + channel1.getName());
}
List<Segment> segments2;
if (channel2.getRotation() != null && channel2.isRotated())
segments2 = channel2.getRawData(channel2.getRotation(), ti);
else segments2 = channel2.getRawData(ti);
int[] intData2 = new int[0];
if (segments2.size() > 0) {
long segment_end_time = 0;
for (Segment segment : segments2) {
if (segment.getSampleRate() != sampleRate) {
throw new XMAXException(
"Channels "
+ channel1.getName()
+ " and "
+ channel2.getName()
+ " have different sample rates: "
+ sampleRate
+ " and "
+ segment.getSampleRate());
}
if (segment_end_time != 0
&& Segment.isDataBreak(
segment_end_time, segment.getStartTime().getTime(), sampleRate)) {
throw new XMAXException("You have gap in the data for channel " + channel2.getName());
}
segment_end_time = segment.getEndTime().getTime();
intData2 = IstiUtilsMath.padArray(intData2, segment.getData(ti).data);
}
} else {
throw new XMAXException("You have no data for channel " + channel1.getName());
}
if (filter != null) {
intData1 = new FilterFacade(filter, channel1).filter(intData1);
intData2 = new FilterFacade(filter, channel2).filter(intData2);
}
int dataSize = Math.min(intData1.length, intData2.length);
if (dataSize > maxDataLength) {
throw new XMAXException("Too many datapoints are selected.");
}
ArrayValues values1 = new ArrayValues(intData1, dataSize);
ArrayValues values2 = new ArrayValues(intData2, dataSize);
for (int i = 0; i < dataSize; i++) {
double x = intData1[i] - values1.getAverage();
double y = intData2[i] - values2.getAverage();
double radius = Math.sqrt(x * x + y * y);
double theta = 180 * Math.atan2(y, x) / Math.PI;
series.add(theta, radius);
}
dataset.addSeries(series);
return dataset;
}
