public StackedXYAreaRenderer2() 
{
             
        this(null, null);
}

Creates a new renderer.

 public StackedXYAreaRenderer2(XYToolTipGenerator labelGenerator,
    XYURLGenerator urlGenerator) 
{
        super(labelGenerator, urlGenerator);
        this.roundXCoordinates = true;
}

Constructs a new renderer.

Parameters:

labelGenerator - the tool tip generator to use. null is none.

urlGenerator - the URL generator (null permitted).

 public Object clone() throws CloneNotSupportedException 
{
        return super.clone();
}

Returns a clone of the renderer.

 public  void drawItem(Graphics2D g2,
    XYItemRendererState state,
    Rectangle2D dataArea,
    PlotRenderingInfo info,
    XYPlot plot,
    ValueAxis domainAxis,
    ValueAxis rangeAxis,
    XYDataset dataset,
    int series,
    int item,
    CrosshairState crosshairState,
    int pass) 
{
        // setup for collecting optional entity info...
        Shape entityArea = null;
        EntityCollection entities = null;
        if (info != null) {
            entities = info.getOwner().getEntityCollection();
        }
        TableXYDataset tdataset = (TableXYDataset) dataset;
        PlotOrientation orientation = plot.getOrientation();
        // get the data point...
        double x1 = dataset.getXValue(series, item);
        double y1 = dataset.getYValue(series, item);
        if (Double.isNaN(y1)) {
            y1 = 0.0;
        }
        double[] stack1 = getStackValues(tdataset, series, item);
        // get the previous point and the next point so we can calculate a
        // "hot spot" for the area (used by the chart entity)...
        double x0 = dataset.getXValue(series, Math.max(item - 1, 0));
        double y0 = dataset.getYValue(series, Math.max(item - 1, 0));
        if (Double.isNaN(y0)) {
            y0 = 0.0;
        }
        double[] stack0 = getStackValues(tdataset, series, Math.max(item - 1,
                0));
        int itemCount = dataset.getItemCount(series);
        double x2 = dataset.getXValue(series, Math.min(item + 1,
                itemCount - 1));
        double y2 = dataset.getYValue(series, Math.min(item + 1,
                itemCount - 1));
        if (Double.isNaN(y2)) {
            y2 = 0.0;
        }
        double[] stack2 = getStackValues(tdataset, series, Math.min(item + 1,
                itemCount - 1));
        double xleft = (x0 + x1) / 2.0;
        double xright = (x1 + x2) / 2.0;
        double[] stackLeft = averageStackValues(stack0, stack1);
        double[] stackRight = averageStackValues(stack1, stack2);
        double[] adjStackLeft = adjustedStackValues(stack0, stack1);
        double[] adjStackRight = adjustedStackValues(stack1, stack2);
        RectangleEdge edge0 = plot.getDomainAxisEdge();
        float transX1 = (float) domainAxis.valueToJava2D(x1, dataArea, edge0);
        float transXLeft = (float) domainAxis.valueToJava2D(xleft, dataArea,
                edge0);
        float transXRight = (float) domainAxis.valueToJava2D(xright, dataArea,
                edge0);
        if (this.roundXCoordinates) {
            transX1 = Math.round(transX1);
            transXLeft = Math.round(transXLeft);
            transXRight = Math.round(transXRight);
        }
        float transY1;
        RectangleEdge edge1 = plot.getRangeAxisEdge();
        GeneralPath left = new GeneralPath();
        GeneralPath right = new GeneralPath();
        if (y1  >= 0.0) {  // handle positive value
            transY1 = (float) rangeAxis.valueToJava2D(y1 + stack1[1], dataArea,
                    edge1);
            float transStack1 = (float) rangeAxis.valueToJava2D(stack1[1],
                    dataArea, edge1);
            float transStackLeft = (float) rangeAxis.valueToJava2D(
                    adjStackLeft[1], dataArea, edge1);
            // LEFT POLYGON
            if (y0  >= 0.0) {
                double yleft = (y0 + y1) / 2.0 + stackLeft[1];
                float transYLeft
                    = (float) rangeAxis.valueToJava2D(yleft, dataArea, edge1);
                if (orientation == PlotOrientation.VERTICAL) {
                    left.moveTo(transX1, transY1);
                    left.lineTo(transX1, transStack1);
                    left.lineTo(transXLeft, transStackLeft);
                    left.lineTo(transXLeft, transYLeft);
                }
                else {
                	left.moveTo(transY1, transX1);
                	left.lineTo(transStack1, transX1);
                	left.lineTo(transStackLeft, transXLeft);
                	left.lineTo(transYLeft, transXLeft);
                }
                left.closePath();
            }
            else {
            	if (orientation == PlotOrientation.VERTICAL) {
                    left.moveTo(transX1, transStack1);
                    left.lineTo(transX1, transY1);
                    left.lineTo(transXLeft, transStackLeft);
            	}
            	else {
                    left.moveTo(transStack1, transX1);
                    left.lineTo(transY1, transX1);
                    left.lineTo(transStackLeft, transXLeft);
            	}
                left.closePath();
            }
            float transStackRight = (float) rangeAxis.valueToJava2D(
                    adjStackRight[1], dataArea, edge1);
            // RIGHT POLYGON
            if (y2  >= 0.0) {
                double yright = (y1 + y2) / 2.0 + stackRight[1];
                float transYRight
                    = (float) rangeAxis.valueToJava2D(yright, dataArea, edge1);
                if (orientation == PlotOrientation.VERTICAL) {
                    right.moveTo(transX1, transStack1);
                    right.lineTo(transX1, transY1);
                    right.lineTo(transXRight, transYRight);
                    right.lineTo(transXRight, transStackRight);
                }
                else {
                    right.moveTo(transStack1, transX1);
                    right.lineTo(transY1, transX1);
                    right.lineTo(transYRight, transXRight);
                    right.lineTo(transStackRight, transXRight);
                }
                right.closePath();
            }
            else {
            	if (orientation == PlotOrientation.VERTICAL) {
                    right.moveTo(transX1, transStack1);
                    right.lineTo(transX1, transY1);
                    right.lineTo(transXRight, transStackRight);
            	}
            	else {
                    right.moveTo(transStack1, transX1);
                    right.lineTo(transY1, transX1);
                    right.lineTo(transStackRight, transXRight);
            	}
                right.closePath();
            }
        }
        else {  // handle negative value
            transY1 = (float) rangeAxis.valueToJava2D(y1 + stack1[0], dataArea,
                    edge1);
            float transStack1 = (float) rangeAxis.valueToJava2D(stack1[0],
                    dataArea, edge1);
            float transStackLeft = (float) rangeAxis.valueToJava2D(
                    adjStackLeft[0], dataArea, edge1);
            // LEFT POLYGON
            if (y0  >= 0.0) {
            	if (orientation == PlotOrientation.VERTICAL) {
                    left.moveTo(transX1, transStack1);
                    left.lineTo(transX1, transY1);
                    left.lineTo(transXLeft, transStackLeft);
            	}
            	else {
                    left.moveTo(transStack1, transX1);
                    left.lineTo(transY1, transX1);
                    left.lineTo(transStackLeft, transXLeft);
            	}
                left.clone();
            }
            else {
                double yleft = (y0 + y1) / 2.0 + stackLeft[0];
                float transYLeft = (float) rangeAxis.valueToJava2D(yleft,
                        dataArea, edge1);
                if (orientation == PlotOrientation.VERTICAL) {
                    left.moveTo(transX1, transY1);
                    left.lineTo(transX1, transStack1);
                    left.lineTo(transXLeft, transStackLeft);
                    left.lineTo(transXLeft, transYLeft);
                }
                else {
                    left.moveTo(transY1, transX1);
                    left.lineTo(transStack1, transX1);
                    left.lineTo(transStackLeft, transXLeft);
                    left.lineTo(transYLeft, transXLeft);
                }
                left.closePath();
            }
            float transStackRight = (float) rangeAxis.valueToJava2D(
                    adjStackRight[0], dataArea, edge1);
            // RIGHT POLYGON
            if (y2  >= 0.0) {
            	if (orientation == PlotOrientation.VERTICAL) {
                    right.moveTo(transX1, transStack1);
                    right.lineTo(transX1, transY1);
                    right.lineTo(transXRight, transStackRight);
            	}
            	else {
                    right.moveTo(transStack1, transX1);
                    right.lineTo(transY1, transX1);
                    right.lineTo(transStackRight, transXRight);
            	}
                right.closePath();
            }
            else {
                double yright = (y1 + y2) / 2.0 + stackRight[0];
                float transYRight = (float) rangeAxis.valueToJava2D(yright,
                        dataArea, edge1);
                if (orientation == PlotOrientation.VERTICAL) {
                    right.moveTo(transX1, transStack1);
                    right.lineTo(transX1, transY1);
                    right.lineTo(transXRight, transYRight);
                    right.lineTo(transXRight, transStackRight);
                }
                else {
                    right.moveTo(transStack1, transX1);
                    right.lineTo(transY1, transX1);
                    right.lineTo(transYRight, transXRight);
                    right.lineTo(transStackRight, transXRight);
                }
                right.closePath();
            }
        }
        //  Get series Paint and Stroke
        Paint itemPaint = getItemPaint(series, item);
        if (pass == 0) {
            g2.setPaint(itemPaint);
            g2.fill(left);
            g2.fill(right);
        }
        // add an entity for the item...
        if (entities != null) {
            GeneralPath gp = new GeneralPath(left);
            gp.append(right, false);
            entityArea = gp;
            addEntity(entities, entityArea, dataset, series, item,
                    transX1, transY1);
        }
}

Draws the visual representation of a single data item.

 public boolean equals(Object obj) 
{
        if (obj == this) {
            return true;
        }
        if (!(obj instanceof StackedXYAreaRenderer2)) {
            return false;
        }
        StackedXYAreaRenderer2 that = (StackedXYAreaRenderer2) obj;
        if (this.roundXCoordinates != that.roundXCoordinates) {
            return false;
        }
        return super.equals(obj);
}

Tests this renderer for equality with an arbitrary object.

 public Range findRangeBounds(XYDataset dataset) 
{
        if (dataset == null) {
            return null;
        }
        double min = Double.POSITIVE_INFINITY;
        double max = Double.NEGATIVE_INFINITY;
        TableXYDataset d = (TableXYDataset) dataset;
        int itemCount = d.getItemCount();
        for (int i = 0; i <  itemCount; i++) {
            double[] stackValues = getStackValues((TableXYDataset) dataset,
                    d.getSeriesCount(), i);
            min = Math.min(min, stackValues[0]);
            max = Math.max(max, stackValues[1]);
        }
        if (min == Double.POSITIVE_INFINITY) {
            return null;
        }
        return new Range(min, max);
}

Returns the range of values the renderer requires to display all the items from the specified dataset.

 public int getPassCount() 
{
        return 1;
}

Returns the number of passes required by the renderer.

 public boolean getRoundXCoordinates() 
{
        return this.roundXCoordinates;
}

Returns the flag that controls whether or not the x-coordinates (in Java2D space) are rounded to integer values.

 public  void setRoundXCoordinates(boolean round) 
{
        this.roundXCoordinates = round;
        fireChangeEvent();
}

Sets the flag that controls whether or not the x-coordinates (in Java2D space) are rounded to integer values, and sends a RendererChangeEvent to all registered listeners.