Examples with JFreeChart org.jfree.chart.JFreeChart used on opensource projects

Example 81 with JFreeChart

use of org.jfree.chart.JFreeChart in project dhis2-core by dhis2.

the class ChartResult method execute.

/**
     * Executes the result. Writes the given chart as a PNG to the servlet
     * output stream.
     * 
     * @param invocation an encapsulation of the action execution state.
     * @throws Exception if an error occurs when creating or writing the chart
     *         to the servlet output stream.
     */
@Override
public void execute(ActionInvocation invocation) throws Exception {
    JFreeChart stackChart = (JFreeChart) invocation.getStack().findValue("chart");
    chart = stackChart != null ? stackChart : chart;
    Integer stackHeight = (Integer) invocation.getStack().findValue("height");
    height = stackHeight != null && stackHeight > 0 ? stackHeight : height != null ? height : DEFAULT_HEIGHT;
    Integer stackWidth = (Integer) invocation.getStack().findValue("width");
    width = stackWidth != null && stackWidth > 0 ? stackWidth : width != null ? width : DEFAULT_WIDTH;
    String stackFilename = (String) invocation.getStack().findValue("filename");
    filename = StringUtils.defaultIfEmpty(stackFilename, DEFAULT_FILENAME);
    if (chart == null) {
        log.warn("No chart found");
        return;
    }
    HttpServletResponse response = ServletActionContext.getResponse();
    ContextUtils.configureResponse(response, ContextUtils.CONTENT_TYPE_PNG, true, filename, false);
    OutputStream os = response.getOutputStream();
    ChartUtilities.writeChartAsPNG(os, chart, width, height);
    os.flush();
}

Example 82 with JFreeChart

use of org.jfree.chart.JFreeChart in project processdash by dtuma.

the class TimeLogPhaseWaterfallChart method createChart.

private JFreeChart createChart(IntervalXYDataset dataset, ProcessUtil process, List<String> phases, GapSkipTracker gaps) {
    JFreeChart result = ChartFactory.createXYBarChart(null, null, true, null, dataset, PlotOrientation.VERTICAL, false, true, false);
    XYPlot xyplot = (XYPlot) result.getPlot();
    DateAxis dateAxis = new DateAxis(null);
    dateAxis.setTickMarksVisible(false);
    dateAxis.setTickLabelsVisible(false);
    dateAxis.setLowerMargin(0.01);
    dateAxis.setUpperMargin(0.01);
    setupGaps(gaps, dateAxis, xyplot);
    xyplot.setDomainAxis(dateAxis);
    String[] phaseNameList = new String[phases.size()];
    for (int i = 0; i < phaseNameList.length; i++) phaseNameList[i] = Translator.translate(phases.get(i));
    SymbolAxis symbolaxis = new SymbolAxis(null, phaseNameList);
    symbolaxis.setGridBandsVisible(false);
    xyplot.setRangeAxis(symbolaxis);
    final XYBarRenderer renderer = (XYBarRenderer) xyplot.getRenderer();
    renderer.setUseYInterval(true);
    renderer.setDrawBarOutline(true);
    renderer.setBaseOutlinePaint(Color.black);
    new PhaseChartColorer(process, phases) {

        public void setItemColor(Object key, int pos, Color c) {
            renderer.setSeriesPaint(pos, c);
        }
    }.run();
    int exceptionSeries = dataset.getSeriesCount() - 1;
    renderer.setSeriesPaint(exceptionSeries, EXCEPTION_PAINT);
    renderer.setSeriesFillPaint(exceptionSeries, EXCEPTION_PAINT);
    renderer.setSeriesOutlinePaint(exceptionSeries, EXCEPTION_PAINT);
    renderer.setBaseToolTipGenerator(new TooltipGenerator());
    xyplot.setBackgroundPaint(Color.white);
    xyplot.setDomainGridlinesVisible(false);
    xyplot.setRangeGridlinePaint(Color.lightGray);
    xyplot.setDrawingSupplier(DRAWING_SUPPLIER_FACTORY.newDrawingSupplier());
    result.setAntiAlias(false);
    result.setTextAntiAlias(true);
    parameters.put("title", resources.getString("Title"));
    return result;
}

Example 83 with JFreeChart

use of org.jfree.chart.JFreeChart in project processdash by dtuma.

the class BarChart method createChart.

/** Create a bar chart. */
public JFreeChart createChart() {
    //if (data.numCols() == 1) data = data.transpose();
    JFreeChart chart;
    // default
    boolean vertical = true;
    String direction = getParameter("dir");
    if ((direction != null && direction.toLowerCase().startsWith("hor")) || parameters.get("horizontal") != null)
        vertical = false;
    chart = ChartFactory.createBarChart3D(null, null, null, data.catDataSource(), (vertical ? PlotOrientation.VERTICAL : PlotOrientation.HORIZONTAL), true, true, false);
    setupCategoryChart(chart);
    return chart;
}

Example 84 with JFreeChart

use of org.jfree.chart.JFreeChart in project processdash by dtuma.

the class DiscChart method createDiscChart.

public static JFreeChart createDiscChart(ResultSet data, Map parameters) {
    // data.sortBy(1, true);
    CategoryDataset catData = data.catDataSource();
    PieDataset pieData = null;
    if (catData.getColumnCount() == 1)
        pieData = DatasetUtilities.createPieDatasetForColumn(catData, 0);
    else
        pieData = DatasetUtilities.createPieDatasetForRow(catData, 0);
    DiscPlot plot = new DiscPlot(pieData);
    plot.setInsets(new RectangleInsets(0.0, 5.0, 5.0, 5.0));
    plot.setDrawingSupplier(DRAWING_SUPPLIER_FACTORY.newDrawingSupplier());
    JFreeChart chart = new JFreeChart(null, JFreeChart.DEFAULT_TITLE_FONT, plot, false);
    if (parameters.get("skipItemLabels") != null || parameters.get("skipDiscLabels") != null)
        plot.setLabelGenerator(null);
    else if (parameters.get("discLabelFontSize") != null)
        try {
            float fontSize = Float.parseFloat((String) parameters.get("discLabelFontSize"));
            plot.setLabelFont(plot.getLabelFont().deriveFont(fontSize));
        } catch (Exception lfe) {
        }
    if (parameters.get("ellipse") != null)
        ((StandardDiscItemDistributor) plot.getDiscDistributor()).setCircular(false);
    String interiorGap = (String) parameters.get("interiorGap");
    if (interiorGap != null)
        try {
            plot.setInteriorGap(Integer.parseInt(interiorGap) / 100.0);
        } catch (NumberFormatException e) {
        }
    String interiorSpacing = (String) parameters.get("interiorSpacing");
    if (interiorSpacing != null)
        try {
            plot.setInteriorGap(Integer.parseInt(interiorSpacing) / 200.0);
        } catch (NumberFormatException e) {
        }
    return chart;
}

Example 85 with JFreeChart

use of org.jfree.chart.JFreeChart in project processdash by dtuma.

the class LineChart method createChart.

/** Create a  line chart. */
public JFreeChart createChart() {
    JFreeChart chart = ChartFactory.createLineChart(null, null, null, data.catDataSource(), PlotOrientation.VERTICAL, true, true, false);
    setupCategoryChart(chart);
    return chart;
}