chartfactory.java

jfreechart安装程序和使用说明

                                             String categoryAxisLabel,
                                             String valueAxisLabel,
                                             CategoryDataset dataset,
                                             PlotOrientation orientation,
                                             boolean legend,
                                             boolean tooltips,
                                             boolean urls) {

        if (orientation == null) {
            throw new IllegalArgumentException("Null 'orientation' argument.");
        }
        CategoryAxis categoryAxis = new CategoryAxis(categoryAxisLabel);
        ValueAxis valueAxis = new NumberAxis(valueAxisLabel);

        LineAndShapeRenderer renderer = new LineAndShapeRenderer();
        renderer.setDrawLines(true);
        renderer.setDrawShapes(false);
        if (tooltips) {
            renderer.setToolTipGenerator(new StandardCategoryToolTipGenerator());
        }
        if (urls) {
            renderer.setItemURLGenerator(new StandardCategoryURLGenerator());
        }
        CategoryPlot plot = new CategoryPlot(dataset, categoryAxis, valueAxis, renderer);
        plot.setOrientation(orientation);
        JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT, plot, legend);

        return chart;

    }

    /**
     * Creates a Gantt chart using the supplied attributes plus default values where required.
     * <P>
     * The chart object returned by this method uses a {@link CategoryPlot} instance as the
     * plot, with a {@link CategoryAxis} for the domain axis, a {@link DateAxis} as the
     * range axis, and a {@link GanttRenderer} as the renderer.
     *
     * @param title  the chart title (<code>null</code> permitted).
     * @param categoryAxisLabel  the label for the category axis (<code>null</code> permitted).
     * @param dateAxisLabel  the label for the date axis (<code>null</code> permitted).
     * @param dataset  the dataset for the chart (<code>null</code> permitted).
     * @param legend  a flag specifying whether or not a legend is required.
     * @param tooltips  configure chart to generate tool tips?
     * @param urls  configure chart to generate URLs?
     *
     * @return A Gantt chart.
     */
    public static JFreeChart createGanttChart(String title,
                                              String categoryAxisLabel,
                                              String dateAxisLabel,
                                              IntervalCategoryDataset dataset,
                                              boolean legend,
                                              boolean tooltips,
                                              boolean urls) {

        CategoryAxis categoryAxis = new CategoryAxis(categoryAxisLabel);
        DateAxis dateAxis = new DateAxis(dateAxisLabel);

        CategoryItemRenderer renderer = new GanttRenderer();
        if (tooltips) {
            renderer.setToolTipGenerator(
                new IntervalCategoryToolTipGenerator("{3} - {4}", DateFormat.getDateInstance())
            );
        }
        if (urls) {
            renderer.setItemURLGenerator(new StandardCategoryURLGenerator());
        }

        CategoryPlot plot = new CategoryPlot(dataset, categoryAxis, dateAxis, renderer);
        plot.setOrientation(PlotOrientation.HORIZONTAL);
        JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT, plot, legend);

        return chart;

    }

    /**
     * Creates a waterfall chart.
     * <P>
     * The chart object returned by this method uses a {@link CategoryPlot} instance as the
     * plot, with a {@link CategoryAxis} for the domain axis, a {@link NumberAxis} as the
     * range axis, and a {@link WaterfallBarRenderer} as the renderer.
     *
     * @param title  the chart title (<code>null</code> permitted).
     * @param categoryAxisLabel  the label for the category axis (<code>null</code> permitted).
     * @param valueAxisLabel  the label for the value axis (<code>null</code> permitted).
     * @param dataset  the dataset for the chart (<code>null</code> permitted).
     * @param orientation  the plot orientation (horizontal or vertical) (<code>null</code> NOT
     *                     permitted).
     * @param legend  a flag specifying whether or not a legend is required.
     * @param tooltips  configure chart to generate tool tips?
     * @param urls  configure chart to generate URLs?
     *
     * @return A waterfall chart.
     */
    public static JFreeChart createWaterfallChart(String title,
                                                  String categoryAxisLabel,
                                                  String valueAxisLabel,
                                                  CategoryDataset dataset,
                                                  PlotOrientation orientation,
                                                  boolean legend,
                                                  boolean tooltips,
                                                  boolean urls) {

        if (orientation == null) {
            throw new IllegalArgumentException("Null 'orientation' argument.");
        }
        CategoryAxis categoryAxis = new CategoryAxis(categoryAxisLabel);
        categoryAxis.setCategoryMargin(0.0);

        ValueAxis valueAxis = new NumberAxis(valueAxisLabel);

        WaterfallBarRenderer renderer = new WaterfallBarRenderer();
        if (orientation == PlotOrientation.HORIZONTAL) {
            ItemLabelPosition position = new ItemLabelPosition(
                ItemLabelAnchor.CENTER, TextAnchor.CENTER, TextAnchor.CENTER, Math.PI / 2.0
            );
            renderer.setPositiveItemLabelPosition(position);
            renderer.setNegativeItemLabelPosition(position);
         }
        else if (orientation == PlotOrientation.VERTICAL) {
            ItemLabelPosition position = new ItemLabelPosition(
                ItemLabelAnchor.CENTER, TextAnchor.CENTER, TextAnchor.CENTER, 0.0
            );
            renderer.setPositiveItemLabelPosition(position);
            renderer.setNegativeItemLabelPosition(position);
        }
        if (tooltips) {
            StandardCategoryToolTipGenerator generator = new StandardCategoryToolTipGenerator();
            renderer.setToolTipGenerator(generator);
        }
        if (urls) {
            renderer.setItemURLGenerator(new StandardCategoryURLGenerator());
        }

        CategoryPlot plot = new CategoryPlot(dataset, categoryAxis, valueAxis, renderer);
        plot.clearRangeMarkers();
        Marker baseline = new ValueMarker(0.0);
        baseline.setPaint(Color.black);
        plot.addRangeMarker(baseline, Layer.FOREGROUND);
        plot.setOrientation(orientation);
        JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT, plot, legend);

        return chart;

    }

    /**
     * Creates a polar plot for the specified dataset (x-values interpreted as angles in degrees).
     * <P>
     * The chart object returned by this method uses a {@link PolarPlot} instance as the
     * plot, with a {@link NumberAxis} for the radial axis.
     *
     * @param title  the chart title (<code>null</code> permitted).
     * @param dataset  the dataset (<code>null</code> permitted).
     * @param legend  legend required?
     * @param tooltips  tooltips required?
     * @param urls  URLs required?
     *
     * @return A chart.
     */
    public static JFreeChart createPolarChart(String title,
                                              XYDataset dataset,
                                              boolean legend,
                                              boolean tooltips,
                                              boolean urls) {

        PolarPlot plot = new PolarPlot();
        plot.setDataset(dataset);
        NumberAxis rangeAxis = new NumberAxis();
        rangeAxis.setAxisLineVisible(false);
        rangeAxis.setTickMarksVisible(false);
        rangeAxis.setTickLabelInsets(new Insets(0, 0, 0, 0));
        plot.setRadialAxis(rangeAxis);
        plot.setRenderer(new DefaultPolarItemRenderer());
        JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT, plot, legend);
        return chart;

    }

    /**
     * Creates a scatter plot with default settings.
     * <P>
     * The chart object returned by this method uses an {@link XYPlot} instance as the
     * plot, with a {@link NumberAxis} for the domain axis, a {@link NumberAxis} as the
     * range axis, and a {@link StandardXYItemRenderer} as the renderer.
     *
     * @param title  the chart title (<code>null</code> permitted).
     * @param xAxisLabel  a label for the X-axis (<code>null</code> permitted).
     * @param yAxisLabel  a label for the Y-axis (<code>null</code> permitted).
     * @param dataset  the dataset for the chart (<code>null</code> permitted).
     * @param orientation  the plot orientation (horizontal or vertical) (<code>null</code> NOT
     *                     permitted).
     * @param legend  a flag specifying whether or not a legend is required.
     * @param tooltips  configure chart to generate tool tips?
     * @param urls  configure chart to generate URLs?
     *
     * @return A scatter plot.
     */
    public static JFreeChart createScatterPlot(String title,
                                               String xAxisLabel,
                                               String yAxisLabel,
                                               XYDataset dataset,
                                               PlotOrientation orientation,
                                               boolean legend,
                                               boolean tooltips,
                                               boolean urls) {

        if (orientation == null) {
            throw new IllegalArgumentException("Null 'orientation' argument.");
        }
        NumberAxis xAxis = new NumberAxis(xAxisLabel);
        xAxis.setAutoRangeIncludesZero(false);
        NumberAxis yAxis = new NumberAxis(yAxisLabel);
        yAxis.setAutoRangeIncludesZero(false);

        XYPlot plot = new XYPlot(dataset, xAxis, yAxis, null);

        XYToolTipGenerator toolTipGenerator = null;
        if (tooltips) {
            toolTipGenerator = new StandardXYToolTipGenerator();
        }

        XYURLGenerator urlGenerator = null;
        if (urls) {
            urlGenerator = new StandardXYURLGenerator();
        }
        StandardXYItemRenderer renderer = new StandardXYItemRenderer(
            StandardXYItemRenderer.SHAPES, toolTipGenerator, urlGenerator
        );
        renderer.setShapesFilled(Boolean.TRUE);
        plot.setRenderer(renderer);
        plot.setOrientation(orientation);

        JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT, plot, legend);

        return chart;

    }

    /**
     * Creates and returns a default instance of an XY bar chart.
     * <P>
     * The chart object returned by this method uses an {@link XYPlot} instance as the
     * plot, with a {@link DateAxis} for the domain axis, a {@link NumberAxis} as the
     * range axis, and a {@link XYBarRenderer} as the renderer.
     *
     * @param title  the chart title (<code>null</code> permitted).
     * @param xAxisLabel  a label for the X-axis (<code>null</code> permitted).
     * @param dateAxis  make the domain axis display dates?
     * @param yAxisLabel  a label for the Y-axis (<code>null</code> permitted).
     * @param dataset  the dataset for the chart (<code>null</code> permitted).
     * @param orientation  the orientation (horizontal or vertical) (<code>null</code> NOT
     *                     permitted).
     * @param legend  a flag specifying whether or not a legend is required.
     * @param tooltips  configure chart to generate tool tips?
     * @param urls  configure chart to generate URLs?
     *
     * @return An XY bar chart.
     */
    public static JFreeChart createXYBarChart(String title,
                                              String xAxisLabel,
                                              boolean dateAxis,
                                              String yAxisLabel,
                                              IntervalXYDataset dataset,
                                              PlotOrientation orientation,
                                              boolean legend,
                                              boolean tooltips,
                                              boolean urls) {

        if (orientation == null) {
            throw new IllegalArgumentException("Null 'orientation' argument.");
        }
        ValueAxis domainAxis = null;
        if (dateAxis) {
            domainAxis = new DateAxis(xAxisLabel);
        }
        else {
            NumberAxis axis = new NumberAxis(xAxisLabel);