xyitemrenderer.java

JFreeChartweb图表

     * Sets the stroke for ALL series (optional).
     *
     * @param stroke  the stroke.
     */
    public void setStroke(Stroke stroke);
    
    /**
     * Sets the stroke for a series in the primary dataset.
     *
     * @param series  the series index (zero-based).
     * @param stroke  the stroke.
     */
    public void setSeriesStroke(int series, Stroke stroke);

    /**
     * Returns the base stroke.
     *
     * @return The stroke.
     */
    public Stroke getBaseStroke();

    /**
     * Sets the base stroke.
     *
     * @param stroke  the stroke.
     */
    public void setBaseStroke(Stroke stroke);

    /**
     * Returns the shape for an item.
     *
     * @param series  the series index (zero-based).
     * @param item  the item index (zero-based).
     *
     * @return The shape.
     */
    public Shape getItemShape(int series, int item);

    /**
     * Returns the shape for a series.
     *
     * @param series  the series index (zero-based).

     *
     * @return The shape.
     */
    public Shape getSeriesShape(int series);

    /**
     * Called for each item to be plotted.
     * <p>
     * The {@link XYPlot} can make multiple passes through the dataset, depending on the value
     * returned by the renderer's {@link #initialise} method.
     *
     * @param g2  the graphics device.
     * @param dataArea  the area within which the data is being rendered.
     * @param info  collects drawing info.
     * @param plot  the plot (can be used to obtain standard color information etc).
     * @param domainAxis  the domain axis.
     * @param rangeAxis  the range axis.
     * @param dataset  the dataset.
     * @param series  the series index (zero-based).
     * @param item  the item index (zero-based).
     * @param crosshairInfo  collects information about crosshairs.
     * @param pass  the pass index.
     */
    public void drawItem(Graphics2D g2,
                         Rectangle2D dataArea,
                         ChartRenderingInfo info,
                         XYPlot plot,
                         ValueAxis domainAxis,
                         ValueAxis rangeAxis,
                         XYDataset dataset,
                         int series,
                         int item,
                         CrosshairInfo crosshairInfo,
                         int pass);

    /**
     * Returns a legend item for a series from a dataset.
     *
     * @param datasetIndex  the dataset index.
     * @param series  the series (zero-based index).
     *
     * @return the legend item.
     */
    public LegendItem getLegendItem(int datasetIndex, int series);

    /**
     * Fills a band between two values on the axis.  This can be used to color bands between the
     * grid lines.
     *
     * @param g2  the graphics device.
     * @param plot  the plot.
     * @param axis  the domain axis.
     * @param dataArea  the data area.
     * @param start  the start value.
     * @param end  the end value.
     */
    public void fillDomainGridBand(Graphics2D g2,
                                   XYPlot plot,
                                   ValueAxis axis,
                                   Rectangle2D dataArea,
                                   double start, double end);

    /**
     * Fills a band between two values on the range axis.  This can be used to color bands between
     * the grid lines.
     *
     * @param g2  the graphics device.
     * @param plot  the plot.
     * @param axis  the range axis.
     * @param dataArea  the data area.
     * @param start  the start value.
     * @param end  the end value.
     */
    public void fillRangeGridBand(Graphics2D g2,
                                  XYPlot plot,
                                  ValueAxis axis,
                                  Rectangle2D dataArea,
                                  double start, double end);

    /**
     * Draws a grid line against the domain axis.
     *
     * @param g2  the graphics device.
     * @param plot  the plot.
     * @param axis  the value axis.
     * @param dataArea  the area for plotting data (not yet adjusted for any 3D effect).
     * @param value  the value.
     */
    public void drawDomainGridLine(Graphics2D g2,
                                   XYPlot plot,
                                   ValueAxis axis,
                                   Rectangle2D dataArea,
                                   double value);

    /**
     * Draws a grid line against the range axis.
     *
     * @param g2  the graphics device.
     * @param plot  the plot.
     * @param axis  the value axis.
     * @param dataArea  the area for plotting data (not yet adjusted for any 3D effect).
     * @param value  the value.
     */
    public void drawRangeGridLine(Graphics2D g2,
                                  XYPlot plot,
                                  ValueAxis axis,
                                  Rectangle2D dataArea,
                                  double value);

    /**
     * Draws a vertical line on the chart to represent a 'range marker'.
     *
     * @param g2  the graphics device.
     * @param plot  the plot.
     * @param axis  the value axis.
     * @param marker  the marker line.
     * @param dataArea  the axis data area.
     */
    public void drawDomainMarker(Graphics2D g2,
                                 XYPlot plot,
                                 ValueAxis axis,
                                 Marker marker,
                                 Rectangle2D dataArea);

    /**
     * Draws a horizontal line across the chart to represent a 'range marker'.
     *
     * @param g2  the graphics device.
     * @param plot  the plot.
     * @param axis  the value axis.
     * @param marker  the marker line.
     * @param dataArea  the axis data area.
     */
    public void drawRangeMarker(Graphics2D g2,
                                XYPlot plot,
                                ValueAxis axis,
                                Marker marker,
                                Rectangle2D dataArea);

    /**
     * Returns the plot that this renderer has been assigned to.
     *
     * @return the plot.
     */
    public XYPlot getPlot();

    /**
     * Sets the plot that this renderer is assigned to.
     * <P>
     * This method will be called by the plot class...you do not need to call it yourself.
     *
     * @param plot  the plot.
     */
    public void setPlot(XYPlot plot);

    /**
     * Returns the range type for the renderer.  The plot needs to know this information in order
     * to determine an appropriate axis range (when the axis auto-range calculation is on).
     * <P>
     * Two types are recognised:
     * <ul>
     *   <li><code>STANDARD</code> - data items are plotted individually, so the axis range should
     *     extend from the smallest value to the largest value;</li>
     * <li><code>STACKED</code> - data items are stacked on top of one another, so to determine
     *     the axis range, all the items in a series need to be summed together.</li>
     * </ul>
     *
     * If the data values are stacked, this affects the axis range required to
     * display all the data items.
     *
     * @return a flag indicating whether or not the data values are stacked.
     */
    public RangeType getRangeType();

}