private JFreeChart buildDifferenceChart(TimeSeriesCollection dataset, String title) { // Creat the chart JFreeChart chart = ChartFactory.createTimeSeriesChart( title, "Date", "Price", dataset, true, // legend true, // tool tips false // URLs ); chart.setBackgroundPaint(Color.white); XYPlot plot = chart.getXYPlot(); plot.setRenderer( new XYDifferenceRenderer(new Color(112, 128, 222), new Color(112, 128, 222), false)); plot.setBackgroundPaint(Color.white); plot.setDomainGridlinePaint(Color.white); plot.setRangeGridlinePaint(Color.white); plot.setAxisOffset(new RectangleInsets(UnitType.ABSOLUTE, 5.0, 5.0, 5.0, 5.0)); ValueAxis domainAxis = new DateAxis("Date"); domainAxis.setLowerMargin(0.0); domainAxis.setUpperMargin(0.0); plot.setDomainAxis(domainAxis); plot.setForegroundAlpha(0.5f); return chart; }
/** * Create the charts * * @throws RemoteException On badness * @throws VisADException On badness */ public void loadData() throws VisADException, RemoteException { createChart(); List dataChoiceWrappers = getDataChoiceWrappers(); try { for (int dataSetIdx = 0; dataSetIdx < plot.getDatasetCount(); dataSetIdx++) { MyHistogramDataset dataset = (MyHistogramDataset) plot.getDataset(dataSetIdx); dataset.removeAllSeries(); } // dataset.removeAllSeries(); Hashtable props = new Hashtable(); props.put(TrackDataSource.PROP_TRACKTYPE, TrackDataSource.ID_TIMETRACE); for (int paramIdx = 0; paramIdx < dataChoiceWrappers.size(); paramIdx++) { DataChoiceWrapper wrapper = (DataChoiceWrapper) dataChoiceWrappers.get(paramIdx); DataChoice dataChoice = wrapper.getDataChoice(); FlatField data = getFlatField((FieldImpl) dataChoice.getData(null, props)); Unit unit = ucar.visad.Util.getDefaultRangeUnits((FlatField) data)[0]; double[][] samples = data.getValues(false); double[] actualValues = filterData(samples[0], getTimeValues(samples, data))[0]; NumberAxis domainAxis = new NumberAxis(wrapper.getLabel(unit)); XYItemRenderer renderer; if (stacked) { renderer = new StackedXYBarRenderer(); } else { renderer = new XYBarRenderer(); } plot.setRenderer(paramIdx, renderer); Color c = wrapper.getColor(paramIdx); domainAxis.setLabelPaint(c); renderer.setSeriesPaint(0, c); MyHistogramDataset dataset = new MyHistogramDataset(); dataset.setType(HistogramType.FREQUENCY); dataset.addSeries(dataChoice.getName() + " [" + unit + "]", actualValues, bins); plot.setDomainAxis(paramIdx, domainAxis, false); plot.mapDatasetToDomainAxis(paramIdx, paramIdx); plot.setDataset(paramIdx, dataset); } } catch (Exception exc) { LogUtil.logException("Error creating data set", exc); return; } }