List of usage examples for org.jfree.chart.axis NumberAxis NumberAxis
public NumberAxis(String label)
From source file:org.ietr.preesm.mapper.ui.BestCostPlotter.java
/** * Creates a chart.// ww w . j a v a 2s. co m * * @return A chart. */ private JFreeChart createChart(String title) { final CombinedDomainXYPlot plot = new CombinedDomainXYPlot(new DateAxis("Time")); this.datasets = new TimeSeriesCollection[subplotCount]; for (int i = 0; i < subplotCount; i++) { this.lastValue[i] = 100.0; final TimeSeries series = new TimeSeries("Real Time", Millisecond.class); this.datasets[i] = new TimeSeriesCollection(series); final NumberAxis rangeAxis = new NumberAxis("Schedule"); rangeAxis.setAutoRangeIncludesZero(false); final XYPlot subplot = new XYPlot(this.datasets[i], null, rangeAxis, new XYLineAndShapeRenderer()); subplot.setBackgroundPaint(Color.white); subplot.setDomainGridlinePaint(Color.lightGray); subplot.setRangeGridlinePaint(Color.lightGray); plot.add(subplot); } final JFreeChart chart = new JFreeChart(title, plot); chart.removeLegend(); // chart.getLegend().setPosition(RectangleEdge.BOTTOM); chart.setBorderPaint(Color.lightGray); chart.setBorderVisible(true); Paint p = GanttPlotter.getBackgroundColorGradient(); chart.setBackgroundPaint(p); plot.setBackgroundPaint(Color.white); plot.setDomainGridlinePaint(Color.white); plot.setRangeGridlinePaint(Color.black); final ValueAxis axis = plot.getDomainAxis(); axis.setAutoRange(true); return chart; }
From source file:org.hxzon.demo.jfreechart.DatasetVisibleDemo.java
private static JFreeChart createTimeSeriesChart(XYDataset dataset) { //DomainAxis/*from w ww. ja v a 2 s . co m*/ DateAxis timeAxis = new DateAxis(""); timeAxis.setLowerMargin(0.02); // reduce the default margins timeAxis.setUpperMargin(0.02); timeAxis.setDateFormatOverride(new SimpleDateFormat("MM-yyyy")); //RangeAxis NumberAxis valueAxis = new NumberAxis(""); valueAxis.setAutoRangeIncludesZero(false); // override default // valueAxis.setAutoRange(false); // valueAxis.setDefaultAutoRange(new Range(100, 1150)); //Renderer XYToolTipGenerator toolTipGenerator = StandardXYToolTipGenerator.getTimeSeriesInstance(); XYURLGenerator urlGenerator = null; // urlGenerator = new StandardXYURLGenerator(); XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer(true, false); renderer.setBaseToolTipGenerator(toolTipGenerator); renderer.setURLGenerator(urlGenerator); renderer.setBaseShapesVisible(true); renderer.setBaseShapesFilled(true); renderer.setDrawSeriesLineAsPath(true); //Plot XYPlot plot = new XYPlot(dataset, timeAxis, valueAxis, null); plot.setRenderer(renderer); plot.setBackgroundPaint(Color.lightGray); plot.setDomainGridlinePaint(Color.white); plot.setRangeGridlinePaint(Color.white); plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0)); plot.setDomainCrosshairVisible(true); plot.setRangeCrosshairVisible(true); // plot.setRangePannable(true); //chart JFreeChart chart = new JFreeChart("", JFreeChart.DEFAULT_TITLE_FONT, plot, true); chart.setBackgroundPaint(Color.white); return chart; }
From source file:com.unicornlabs.kabouter.gui.power.PowerPanel.java
/** * Sets the chart data and title/*from w ww. j a v a 2s. co m*/ * * @param logs the list of power logs * @param title the title of the chart */ public void setupChart(ArrayList<Powerlog> logs, String title) { myDataSeriesMap.clear(); //Create a collection to store the series dataset = new XYSeriesCollection(); //Add each of the logs to the series for (Powerlog p : logs) { XYSeries deviceSeries = myDataSeriesMap.get(p.getId().getDeviceid()); if (deviceSeries == null) { deviceSeries = new XYSeries(p.getId().getDeviceid()); myDataSeriesMap.put(p.getId().getDeviceid(), deviceSeries); dataset.addSeries(deviceSeries); } deviceSeries.add(p.getId().getLogtime().getTime(), p.getPower()); } //Create a custom date axis to display dates on the X axis DateAxis dateAxis = new DateAxis("Date"); //Make the labels vertical dateAxis.setVerticalTickLabels(true); //Create the power axis NumberAxis powerAxis = new NumberAxis("Power"); //Set both axes to auto range for their values powerAxis.setAutoRange(true); dateAxis.setAutoRange(true); //Create the tooltip generator StandardXYToolTipGenerator ttg = new StandardXYToolTipGenerator("{0}: {2}", new SimpleDateFormat("yyyy/MM/dd HH:mm"), NumberFormat.getInstance()); //Set the renderer StandardXYItemRenderer renderer = new StandardXYItemRenderer(StandardXYItemRenderer.LINES, ttg, null); //Create the plot XYPlot plot = new XYPlot(dataset, dateAxis, powerAxis, renderer); //Create the chart myChart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT, plot, true); //Attach the chart to the panel ((ChartPanel) chartPanel).setChart(myChart); //Set max draw size to 2560x1440 ((ChartPanel) chartPanel).setMaximumDrawHeight(1440); ((ChartPanel) chartPanel).setMaximumDrawWidth(2560); }
From source file:com.yahoo.egads.utilities.GUIUtils.java
/** * Compute the time-series of anomalies. *//*from w w w.j a v a2 s.c o m*/ public void addAnomalyTS(CombinedDomainXYPlot plot, DataSequence observedSeries, DataSequence expectedSeries) { // Compute the time-series of errors. HashMap<String, ArrayList<Float>> allErrors = aes.initAnomalyErrors(observedSeries, expectedSeries); Float sDAutoSensitivity = (float) 0.0; Float amntAutoSensitivity = (float) 0.0; if (config.getProperty("AUTO_SENSITIVITY_ANOMALY_PCNT") != null) { amntAutoSensitivity = new Float(config.getProperty("AUTO_SENSITIVITY_ANOMALY_PCNT")); } if (config.getProperty("AUTO_SENSITIVITY_SD") != null) { sDAutoSensitivity = new Float(config.getProperty("AUTO_SENSITIVITY_SD")); } String errorDebug = ""; for (int i = 0; i < (aes.getIndexToError().keySet()).size(); i++) { Float[] fArray = (allErrors.get(aes.getIndexToError().get(i))) .toArray(new Float[(allErrors.get(aes.getIndexToError().get(i))).size()]); XYDataset data1 = createDataset(fArray, aes.getIndexToError().get(i)); XYItemRenderer renderer1 = new StandardXYItemRenderer(); NumberAxis rangeAxis1 = new NumberAxis(aes.getIndexToError().get(i)); XYPlot subplot1 = new XYPlot(data1, null, rangeAxis1, renderer1); // Get threshold. Float d = AutoSensitivity.getLowDensitySensitivity(fArray, sDAutoSensitivity, amntAutoSensitivity); subplot1.addRangeMarker(new ValueMarker(d)); subplot1.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT); plot.add(subplot1, 1); errorDebug += aes.getIndexToError().get(i) + ": " + d + " "; } System.out.println(errorDebug); }
From source file:controletanquesproj1.Grafico.java
/** * Creates a chart.//from w w w. jav a 2 s . c o m * * @param _datasets * @param datasets * @param dataset the data for the chart. * * @return a chart. */ public JFreeChart createChart() { // create the chart... final JFreeChart chart = ChartFactory.createXYLineChart("", // chart title "Amostra", // x axis label "Amplitude (V)", // y axis label getDatasets()[0], // data PlotOrientation.VERTICAL, true, // include legend true, // tooltips false // urls ); // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART... chart.setBackgroundPaint(Color.white); // final StandardLegend legend = (StandardLegend) chart.getLegend(); // legend.setDisplaySeriesShapes(true); // get a reference to the plot for further customisation... final XYPlot plot = chart.getXYPlot(); plot.setBackgroundPaint(Color.white); // plot.setAxisOffset(new Spacer(Spacer.ABSOLUTE, 5.0, 5.0, 5.0, 5.0)); plot.setDomainGridlinePaint(Color.black); plot.setRangeGridlinePaint(Color.black); plot.getRangeAxis(0).setRange(-30, 30); final NumberAxis axis2 = new NumberAxis("Altura (cm)"); axis2.setAutoRange(true); axis2.setAutoRangeIncludesZero(false); //axis2.setRange(-4.9, 34.9); plot.setRangeAxis(1, axis2); plot.setDataset(1, getDatasets()[1]); plot.mapDatasetToRangeAxis(1, 1); /* getRenderer().setSeriesLinesVisible(0, true); getRenderer().setSeriesShapesVisible(0, false); getRenderer().setSeriesShapesVisible(1, false); getRenderer().setSeriesShapesVisible(2, false); getRenderer().setSeriesLinesVisible(3, true); getRenderer().setSeriesShapesVisible(3, false); */ renderer[0].setBaseShapesVisible(false); renderer[0].setAutoPopulateSeriesPaint(true); plot.setRenderer(renderer[0]); renderer[1] = new XYLineAndShapeRenderer(); renderer[1].setBaseLinesVisible(true); renderer[1].setBaseShapesVisible(true); plot.setRenderer(1, renderer[1]); // change the auto tick unit selection to integer units only... //final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis(); //rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); // OPTIONAL CUSTOMISATION COMPLETED. return chart; }
From source file:com.javafxpert.neuralnetviz.scenario.PlotUtil.java
private static JFreeChart createChart(XYZDataset dataset, double[] mins, double[] maxs, int nPoints, XYDataset xyData) {/*from ww w.ja v a 2 s . c o m*/ NumberAxis xAxis = new NumberAxis("X"); xAxis.setRange(mins[0], maxs[0]); NumberAxis yAxis = new NumberAxis("Y"); yAxis.setRange(mins[1], maxs[1]); XYBlockRenderer renderer = new XYBlockRenderer(); renderer.setBlockWidth((maxs[0] - mins[0]) / (nPoints - 1)); renderer.setBlockHeight((maxs[1] - mins[1]) / (nPoints - 1)); PaintScale scale = new GrayPaintScale(0, 1.0); renderer.setPaintScale(scale); XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer); plot.setBackgroundPaint(Color.lightGray); plot.setDomainGridlinesVisible(false); plot.setRangeGridlinesVisible(false); plot.setAxisOffset(new RectangleInsets(5, 5, 5, 5)); JFreeChart chart = new JFreeChart("", plot); chart.getXYPlot().getRenderer().setSeriesVisibleInLegend(0, false); NumberAxis scaleAxis = new NumberAxis("Probability (class 0)"); scaleAxis.setAxisLinePaint(Color.white); scaleAxis.setTickMarkPaint(Color.white); scaleAxis.setTickLabelFont(new Font("Dialog", Font.PLAIN, 7)); PaintScaleLegend legend = new PaintScaleLegend(new GrayPaintScale(), scaleAxis); legend.setStripOutlineVisible(false); legend.setSubdivisionCount(20); legend.setAxisLocation(AxisLocation.BOTTOM_OR_LEFT); legend.setAxisOffset(5.0); legend.setMargin(new RectangleInsets(5, 5, 5, 5)); legend.setFrame(new BlockBorder(Color.red)); legend.setPadding(new RectangleInsets(10, 10, 10, 10)); legend.setStripWidth(10); legend.setPosition(RectangleEdge.LEFT); chart.addSubtitle(legend); ChartUtilities.applyCurrentTheme(chart); plot.setDataset(1, xyData); XYLineAndShapeRenderer renderer2 = new XYLineAndShapeRenderer(); renderer2.setBaseLinesVisible(false); plot.setRenderer(1, renderer2); plot.setDatasetRenderingOrder(DatasetRenderingOrder.FORWARD); return chart; }
From source file:asl.util.PlotMaker.java
public void plotZNE_3x3(ArrayList<double[]> channelData, double[] xsecs, int nstart, int nend, String eventString, String plotString) { // Expecting 9 channels packed like: Panel Trace1 Trace2 Trace3 // channels[0] = 00-LHZ 1 00-LHZ 10-LHZ 20-LHZ // channels[1] = 00-LHND 2 00-LHND 10-LHND 20-LHND // channels[2] = 00-LHED 3 00-LHED 10-LHED 20-LHED // channels[3] = 10-LHZ // channels[4] = 10-LHND // channels[5] = 10-LHED // channels[6] = 20-LHZ // channels[7] = 20-LHND // channels[8] = 20-LHED final String plotTitle = String.format("%04d%03d [Stn:%s] [Event:%s] %s", date.get(Calendar.YEAR), date.get(Calendar.DAY_OF_YEAR), station, eventString, plotString); final String pngName = String.format("%s/%s.%s.%s.png", outputDir, eventString, station, plotString); File outputFile = new File(pngName); // Check that we will be able to output the file without problems and if not --> return if (!checkFileOut(outputFile)) { System.out.format("== plotZNE_3x3: request to output plot=[%s] but we are unable to create it " + " --> skip plot\n", pngName); return;//from w w w. java 2s .c o m } if (channelData.size() != channels.length) { System.out.format("== plotZNE_3x3: Error: We have [%d channels] but [%d channelData]\n", channels.length, channelData.size()); return; } XYSeries[] series = new XYSeries[channels.length]; for (int i = 0; i < channels.length; i++) { series[i] = new XYSeries(channels[i].toString()); double[] data = channelData.get(i); //for (int k = 0; k < xsecs.length; k++){ for (int k = 0; k < data.length; k++) { series[i].add(xsecs[k], data[k]); } } // I. Panel I = Verticals // Use the first data array, within the plotted range (nstart - nend) to scale the plots: double[] data = channelData.get(0); double ymax = 0; for (int k = nstart; k < nend; k++) { if (data[k] > ymax) ymax = data[k]; } final XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer(); Paint[] paints = new Paint[] { Color.red, Color.blue, Color.green }; for (int i = 0; i < paints.length; i++) { renderer.setSeriesPaint(i, paints[i]); renderer.setSeriesLinesVisible(i, true); renderer.setSeriesShapesVisible(i, false); } final NumberAxis verticalAxis = new NumberAxis("Displacement (m)"); verticalAxis.setRange(new Range(-ymax, ymax)); //verticalAxis.setTickUnit( new NumberTickUnit(5) ); final NumberAxis horizontalAxis = new NumberAxis("Time (s)"); horizontalAxis.setRange(new Range(nstart, nend)); //horizontalAxis.setRange( new Range(0.00009 , 110) ); final NumberAxis hAxis = new NumberAxis("Time (s)"); hAxis.setRange(new Range(nstart, nend)); final XYSeriesCollection seriesCollection1 = new XYSeriesCollection(); seriesCollection1.addSeries(series[0]); seriesCollection1.addSeries(series[3]); seriesCollection1.addSeries(series[6]); //final XYPlot xyplot1 = new XYPlot((XYDataset)seriesCollection1, null, verticalAxis, renderer); //final XYPlot xyplot1 = new XYPlot((XYDataset)seriesCollection1, horizontalAxis, verticalAxis, renderer); final XYPlot xyplot1 = new XYPlot((XYDataset) seriesCollection1, hAxis, verticalAxis, renderer); double x = .95 * xsecs[nend]; double y = .90 * ymax; XYTextAnnotation annotation1 = new XYTextAnnotation("Vertical", x, y); annotation1.setFont(new Font("SansSerif", Font.PLAIN, 14)); xyplot1.addAnnotation(annotation1); // II. Panel II = North // Use the first data array, within the plotted range (nstart - nend) to scale the plots: data = channelData.get(1); ymax = 0; for (int k = nstart; k < nend; k++) { if (data[k] > ymax) ymax = data[k]; } final NumberAxis verticalAxisN = new NumberAxis("Displacement (m)"); verticalAxisN.setRange(new Range(-ymax, ymax)); final XYSeriesCollection seriesCollection2 = new XYSeriesCollection(); seriesCollection2.addSeries(series[1]); seriesCollection2.addSeries(series[4]); seriesCollection2.addSeries(series[7]); final XYPlot xyplot2 = new XYPlot((XYDataset) seriesCollection2, null, verticalAxisN, renderer); XYTextAnnotation annotation2 = new XYTextAnnotation("North-South", x, y); annotation2.setFont(new Font("SansSerif", Font.PLAIN, 14)); xyplot2.addAnnotation(annotation2); // III. Panel III = East // Use the first data array, within the plotted range (nstart - nend) to scale the plots: data = channelData.get(2); ymax = 0; for (int k = nstart; k < nend; k++) { if (data[k] > ymax) ymax = data[k]; } final NumberAxis verticalAxisE = new NumberAxis("Displacement (m)"); verticalAxisE.setRange(new Range(-ymax, ymax)); final XYSeriesCollection seriesCollection3 = new XYSeriesCollection(); seriesCollection3.addSeries(series[2]); seriesCollection3.addSeries(series[5]); seriesCollection3.addSeries(series[8]); final XYPlot xyplot3 = new XYPlot((XYDataset) seriesCollection3, null, verticalAxisE, renderer); XYTextAnnotation annotation3 = new XYTextAnnotation("East-West", x, y); annotation3.setFont(new Font("SansSerif", Font.PLAIN, 14)); xyplot3.addAnnotation(annotation3); //CombinedXYPlot combinedPlot = new CombinedXYPlot( horizontalAxis, CombinedXYPlot.VERTICAL ); CombinedDomainXYPlot combinedPlot = new CombinedDomainXYPlot(horizontalAxis); combinedPlot.add(xyplot1, 1); combinedPlot.add(xyplot2, 1); combinedPlot.add(xyplot3, 1); combinedPlot.setGap(15.); final JFreeChart chart = new JFreeChart(combinedPlot); chart.setTitle(new TextTitle(plotTitle)); try { ChartUtilities.saveChartAsPNG(outputFile, chart, 1400, 800); } catch (IOException e) { System.err.println("Problem occurred creating chart."); } }
From source file:org.cds06.speleograph.data.fileio.SpeleoFileReader.java
/** * Read a file with SpeleoGraph File Format. * * @param file The file to read/*from w ww .j a v a 2 s .c o m*/ * @throws FileReadingError On error while reading the file */ @SuppressWarnings("HardCodedStringLiteral") @Override public void readFile(File file) throws FileReadingError { InputStreamReader streamReader; try { streamReader = new InputStreamReader(new FileInputStream(file), "UTF-8"); // NON-NLS } catch (UnsupportedEncodingException | FileNotFoundException e) { log.error("Can not access to file", e); throw new FileReadingError(I18nSupport.translate("error.canNotOpenFile", file.getName()), FileReadingError.Part.HEAD, e); } CSVReader reader = new CSVReader(streamReader, ';', '"'); axes = new ArrayList<>(); typeAxesChecker = new ArrayList<>(); String[] line; try { line = reader.readNext(); } catch (IOException e) { throw new FileReadingError(I18nSupport.translate("error.canNotReadFileOrEmpty"), FileReadingError.Part.HEAD, e); } int size, state = CHECKING; HeaderInformation headers = new HeaderInformation(); DateInformation date = new DateInformation(); headers.setDateInformation(date); while (line != null) { size = line.length; if (size == 0) { log.info("Empty line while reading file, just continue our walk."); continue; } String firstLineElement = line[0]; if (firstLineElement.equals("eof")) break; // Force end for reading NON-NLS switch (state) { case CHECKING: if (!SPELEOGRAPH_FILE_HEADER.equals(firstLineElement)) throw NOT_SPELEO_FILE; state = FINDING_HEADERS; break; case FINDING_HEADERS: if ("headers".equals(firstLineElement)) state = READING_HEADERS; // NON-NLS break; case READING_HEADERS: switch (firstLineElement) { case "data": state = READING_DATA; break; case "date": readDateHeaderLine(date, line); break; case "axis": try { NumberAxis axis = new NumberAxis(line[2]); axis.setLowerBound((DecimalFormat.getInstance().parse(line[3])).doubleValue()); axis.setUpperBound(DecimalFormat.getInstance().parse(line[4]).doubleValue()); typeAxesChecker.add(Integer.parseInt(line[1]), new Properties(line).getBoolean("type")); axes.add(Integer.parseInt(line[1]), axis); } catch (Exception e) { log.error("Can not read axis", e); } break; case "chart": break; default: readSeriesHeaderLine(file, line, headers); } break; case READING_DATA: if (size <= 1) break; headers.read(line); break; default: log.info("State error in reading"); } try { line = reader.readNext(); } catch (IOException e) { log.debug("None next lines", e); } } Series.notifyInstanceListeners(); log.info("File reading is ended"); }
From source file:com.jaxzin.iraf.forecast.swing.JForecaster.java
@SuppressWarnings({ "FieldRepeatedlyAccessedInMethod" })
private void customizeChart(final JFreeChart chart) {
// Set the transparency of the histogram bars
// chart.getXYPlot().setForegroundAlpha(0.5f);
// Lock the y-axis to 0.0->0.5
// Customize the y-logAxis
logAxis = new LogarithmicAxis("Account Value");
logAxis.setAutoRange(true);/*from w w w . j a v a 2 s . c o m*/
logAxis.setAllowNegativesFlag(true);
logAxis.setNumberFormatOverride(NumberFormat.getCurrencyInstance());
linearAxis = new NumberAxis("Account Value");
linearAxis.setAutoRange(true);
linearAxis.setNumberFormatOverride(NumberFormat.getCurrencyInstance());
//noinspection ConditionalExpression
chart.getXYPlot().setRangeAxis(controlPanel.isLogScale() ? logAxis : linearAxis);
// Customize the legend (add title, reverse order, attach to right side)
final BlockContainer legendWrap = new BlockContainer();
final Block title = new LabelBlock("Percentiles");
legendWrap.setArrangement(new ColumnArrangement());
legendWrap.add(title);
final LegendTitle legendTitle = new LegendTitle(new ReversedLegendItemSource(chart.getXYPlot()),
new ColumnArrangement(), new ColumnArrangement());
legendWrap.add(legendTitle);
chart.getLegend().setWrapper(legendWrap);
chart.getLegend().setPosition(RectangleEdge.RIGHT);
// Customize the format of the tooltips
chart.getXYPlot().getRenderer().setBaseToolTipGenerator(
new StandardXYToolTipGenerator(StandardXYToolTipGenerator.DEFAULT_TOOL_TIP_FORMAT,
new SimpleDateFormat("yyyy"), NumberFormat.getCurrencyInstance()));
}
From source file:org.jfree.chart.demo.ContourPlotDemo.java
/** * Creates a ContourPlot chart./*from w ww. ja va2s . c om*/ * * @return the chart. */ private JFreeChart createContourPlot() { final String title = "Contour Plot"; final String xAxisLabel = "X Values"; final String yAxisLabel = "Y Values"; final String zAxisLabel = "Color Values"; if (xIsDate) { this.xAxis = new DateAxis(xAxisLabel); xIsLog = false; // force axis to be linear when displaying dates } else { if (xIsLog) { this.xAxis = new LogarithmicAxis(xAxisLabel); } else { this.xAxis = new NumberAxis(xAxisLabel); } } if (yIsLog) { this.yAxis = new LogarithmicAxis(yAxisLabel); } else { this.yAxis = new NumberAxis(yAxisLabel); } if (zIsLog) { this.zColorBar = new ColorBar(zAxisLabel); } else { this.zColorBar = new ColorBar(zAxisLabel); } if (this.xAxis instanceof NumberAxis) { ((NumberAxis) this.xAxis).setAutoRangeIncludesZero(false); ((NumberAxis) this.xAxis).setInverted(xIsInverted); } this.yAxis.setAutoRangeIncludesZero(false); this.yAxis.setInverted(yIsInverted); if (!xIsDate) { ((NumberAxis) this.xAxis).setLowerMargin(0.0); ((NumberAxis) this.xAxis).setUpperMargin(0.0); } this.yAxis.setLowerMargin(0.0); this.yAxis.setUpperMargin(0.0); this.zColorBar.getAxis().setInverted(zIsInverted); this.zColorBar.getAxis().setTickMarksVisible(true); final ContourDataset data = createDataset(); final ContourPlot plot = new ContourPlot(data, this.xAxis, this.yAxis, this.zColorBar); if (xIsDate) { ratio = Math.abs(ratio); // don't use plot units for ratios when x axis is date } plot.setDataAreaRatio(ratio); final JFreeChart chart = new JFreeChart(title, null, plot, false); chart.setBackgroundPaint(new GradientPaint(0, 0, Color.white, 0, 1000, Color.green)); return chart; }