protected JFreeChart createScatterChart() throws JRException {
JFreeChart jfreeChart = super.createScatterChart();
XYPlot xyPlot = (XYPlot) jfreeChart.getPlot();
xyPlot.setDomainGridlinesVisible(false);
XYLineAndShapeRenderer plotRenderer =
(XYLineAndShapeRenderer) ((XYPlot) jfreeChart.getPlot()).getRenderer();
plotRenderer.setBaseShapesFilled(false);
plotRenderer.setBaseStroke(new BasicStroke(1f));
return jfreeChart;
}
private static JFreeChart createDistributionViewChart() {
XYPlot plot = new XYPlot();
XYLineAndShapeRenderer dRenderer = new XYSplineRenderer();
dRenderer.setBaseShapesVisible(false);
dRenderer.setAutoPopulateSeriesPaint(false);
dRenderer.setAutoPopulateSeriesStroke(false);
dRenderer.setBaseStroke(TsCharts.getStrongStroke(LinesThickness.Thin));
dRenderer.setDrawSeriesLineAsPath(true); // not sure if useful
plot.setDataset(DISTRIBUTION_INDEX, Charts.emptyXYDataset());
plot.setRenderer(DISTRIBUTION_INDEX, dRenderer);
XYBarRenderer hRenderer = new XYBarRenderer();
hRenderer.setShadowVisible(false);
hRenderer.setDrawBarOutline(true);
hRenderer.setAutoPopulateSeriesPaint(false);
hRenderer.setAutoPopulateSeriesOutlinePaint(false);
hRenderer.setBaseSeriesVisibleInLegend(false);
plot.setDataset(HISTOGRAM_INDEX, Charts.emptyXYDataset());
plot.setRenderer(HISTOGRAM_INDEX, hRenderer);
NumberAxis domainAxis = new NumberAxis();
domainAxis.setTickLabelPaint(TsCharts.CHART_TICK_LABEL_COLOR);
plot.setDomainAxis(domainAxis);
plot.setDomainGridlinesVisible(false);
NumberAxis rangeAxis = new NumberAxis();
rangeAxis.setTickLabelPaint(TsCharts.CHART_TICK_LABEL_COLOR);
rangeAxis.setTickUnit(new NumberTickUnit(0.05));
rangeAxis.setNumberFormatOverride(new DecimalFormat("0.###"));
plot.setRangeAxis(rangeAxis);
plot.mapDatasetToDomainAxis(0, 0);
plot.mapDatasetToRangeAxis(0, 0);
plot.mapDatasetToDomainAxis(1, 0);
plot.mapDatasetToRangeAxis(1, 0);
JFreeChart result = new JFreeChart("", JFreeChart.DEFAULT_TITLE_FONT, plot, true);
result.setPadding(TsCharts.CHART_PADDING);
result.getTitle().setFont(TsCharts.CHART_TITLE_FONT);
result.getLegend().setFrame(BlockBorder.NONE);
result.getLegend().setBackgroundPaint(null);
return result;
}
/**
* create the chart for the original time series
*
* @param tsData the data to plot.
* @return a JFreeChart object of the chart
*/
private void paintTheChart(double[] tsData) {
// making the data
//
XYSeries dataset = new XYSeries("Series");
for (int i = 0; i < tsData.length; i++) {
dataset.add(i, (float) tsData[i]);
}
chartXYSeriesCollection = new XYSeriesCollection(dataset);
// set the renderer
//
XYLineAndShapeRenderer xyRenderer = new XYLineAndShapeRenderer(true, false);
xyRenderer.setSeriesPaint(0, new Color(0, 0, 0));
xyRenderer.setBaseStroke(new BasicStroke(3));
// X - the time axis
//
NumberAxis timeAxis = new NumberAxis("Time. (zoom: select with mouse; panning: Ctrl+mouse)");
// Y axis
//
NumberAxis valueAxis = new NumberAxis("Values");
valueAxis.setAutoRangeIncludesZero(false);
// put these into collection of dots
//
this.timeseriesPlot = new XYPlot(chartXYSeriesCollection, timeAxis, valueAxis, xyRenderer);
// enabling panning
//
this.timeseriesPlot.setDomainPannable(true);
this.timeseriesPlot.setRangePannable(true);
// finally, create the chart
this.chart = new JFreeChart("", JFreeChart.DEFAULT_TITLE_FONT, timeseriesPlot, false);
// set the progress listener to react to mouse clicks in the chart
this.chart.addProgressListener(this);
}
private static JFreeChart createChart(XYDataset xydataset) {
JFreeChart jfreechart =
ChartFactory.createTimeSeriesChart(
"Time Series Demo 7", "Date", "Value", xydataset, true, true, false);
XYPlot xyplot = (XYPlot) jfreechart.getPlot();
NumberAxis numberaxis = new NumberAxis(null);
numberaxis.setAutoRangeIncludesZero(false);
xyplot.setRangeAxis(1, numberaxis);
java.util.List list = Arrays.asList(new Integer[] {new Integer(0), new Integer(1)});
xyplot.mapDatasetToRangeAxes(0, list);
XYLineAndShapeRenderer xylineandshaperenderer = (XYLineAndShapeRenderer) xyplot.getRenderer();
xylineandshaperenderer.setAutoPopulateSeriesStroke(false);
xylineandshaperenderer.setBaseStroke(new BasicStroke(1.5F, 1, 1));
xylineandshaperenderer.setDrawSeriesLineAsPath(true);
GeneralPath generalpath = new GeneralPath();
generalpath.moveTo(-6F, 0.0F);
generalpath.lineTo(-3F, 6F);
generalpath.lineTo(3F, -6F);
generalpath.lineTo(6F, 0.0F);
xylineandshaperenderer.setLegendLine(generalpath);
ChartUtilities.applyCurrentTheme(jfreechart);
return jfreechart;
}
private static BufferedImage getChart(double[] tsData, double redDot) {
try {
// making the data
//
XYSeries dataset = new XYSeries("Series");
for (int i = 0; i < tsData.length; i++) {
dataset.add(i, (float) tsData[i]);
}
XYSeriesCollection chartXYSeriesCollection = new XYSeriesCollection(dataset);
XYSeries dot = new XYSeries("Dot");
dot.add((float) redDot, 0.0f);
chartXYSeriesCollection.addSeries(dot);
// set the renderer
//
XYLineAndShapeRenderer xyRenderer = new XYLineAndShapeRenderer(true, false);
xyRenderer.setBaseStroke(new BasicStroke(3));
xyRenderer.setSeriesPaint(0, new Color(0, 0, 0));
xyRenderer.setSeriesLinesVisible(0, true);
xyRenderer.setSeriesShapesVisible(0, false);
xyRenderer.setSeriesPaint(1, Color.RED);
xyRenderer.setSeriesLinesVisible(1, false);
xyRenderer.setSeriesShapesVisible(1, true);
// X - the time axis
//
NumberAxis timeAxis = new NumberAxis();
timeAxis.setLabel("Time");
// Y axis
//
NumberAxis valueAxis = new NumberAxis("Values");
valueAxis.setAutoRangeIncludesZero(false);
valueAxis.setLabel("Values");
// put these into collection of dots
//
XYPlot timeseriesPlot = new XYPlot(chartXYSeriesCollection, timeAxis, valueAxis, xyRenderer);
// finally, create the chart
JFreeChart chart = new JFreeChart("", JFreeChart.DEFAULT_TITLE_FONT, timeseriesPlot, false);
BufferedImage objBufferedImage = chart.createBufferedImage(800, 400);
ByteArrayOutputStream bas = new ByteArrayOutputStream();
try {
ImageIO.write(objBufferedImage, "png", bas);
} catch (IOException e) {
e.printStackTrace();
}
byte[] byteArray = bas.toByteArray();
InputStream in = new ByteArrayInputStream(byteArray);
BufferedImage image = ImageIO.read(in);
return image;
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
