protected XYMultipleSeriesDataset buildDataset(String[] titles, List<double[]> xyValues) {
XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
XYSeries series = getXYSeries(titles[0], xyValues.get(0), xyValues.get(1));
dataset.addSeries(series);
// we may have trend line data as well
if (titles.length == 2 && xyValues.size() == 3) {
series = getXYSeries(titles[1], xyValues.get(0), xyValues.get(2));
dataset.addSeries(series);
}
return dataset;
}
/**
* Gets the buffer/cache for values. Values set in the buffer will be applied to the target
* dataset when the transition takes place.
*
* @return
*/
public XYMultipleSeriesDataset getBuffer() {
if (datasetCache == null) {
datasetCache = new XYMultipleSeriesDataset();
for (int i = 0; i < dataset.getSeriesCount(); i++) {
datasetCache.addSeries(new XYSeries(dataset.getSeriesAt(i).getTitle()));
}
seriesTransitions = new XYSeriesTransition[dataset.getSeries().length];
for (int i = 0; i < seriesTransitions.length; i++) {
seriesTransitions[i] = new XYSeriesTransition(getChart(), dataset.getSeriesAt(i));
seriesTransitions[i].setBuffer(datasetCache.getSeriesAt(i));
}
}
return datasetCache;
}
/**
* Builds a bar multiple series dataset using the provided values.
*
* @param titles the series titles
* @param values the values
* @return the XY multiple bar dataset
*/
protected XYMultipleSeriesDataset buildBarDataset(String[] titles, List<double[]> values) {
XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
int length = titles.length;
for (int i = 0; i < length; i++) {
CategorySeries series = new CategorySeries(titles[i]);
double[] v = values.get(i);
int seriesLength = v.length;
for (int k = 0; k < seriesLength; k++) {
series.add(v[k]);
}
dataset.addSeries(series.toXYSeries());
}
return dataset;
}