/**
* 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;
}
public void setRegion(String region) {
this.currentRegion = region;
renderer.setChartTitle(region);
renderer.getSeriesRendererAt(0).setColor(colors[viewMode]);
((XYSeriesRenderer) renderer.getSeriesRendererAt(0))
.setFillBelowLineColor(0x33000000 | colors[viewMode]);
if (getComponentForm() != null) {
XYMultiSeriesTransition t = new XYMultiSeriesTransition(chart, dataSet);
RegionData[] rdArr = data.getRegionData(region);
for (RegionData rd : rdArr) {
switch (viewMode) {
case VIEW_MODE_POPULATION:
dataSet.getSeriesAt(0).setTitle("Population");
t.getBuffer().getSeriesAt(POPULATION).add(rd.year, rd.pop);
break;
case VIEW_MODE_DENSITY:
dataSet.getSeriesAt(0).setTitle("Density (People per square mile)");
t.getBuffer().getSeriesAt(POPULATION).add(rd.year, rd.density);
break;
default:
throw new RuntimeException("Illegal view mode.");
}
// t.getBuffer().getSeriesAt(DENSITY).add(rd.year, rd.density);
// t.getBuffer().getSeriesAt(RANK).add(rd.year, rd.rank);
}
t.animateChart();
} else {
RegionData[] rdArr = data.getRegionData(region);
renderer.getSeriesRendererAt(0).setColor(colors[viewMode]);
for (RegionData rd : rdArr) {
switch (viewMode) {
case VIEW_MODE_POPULATION:
dataSet.getSeriesAt(POPULATION).add(rd.year, rd.pop);
dataSet.getSeriesAt(0).setTitle("Population");
break;
case VIEW_MODE_DENSITY:
dataSet.getSeriesAt(0).setTitle("Density (People per square mile)");
dataSet.getSeriesAt(POPULATION).add(rd.year, rd.density);
break;
default:
throw new RuntimeException("Illegal view mode");
}
}
Log.p("Finished adding pop data");
}
}