public CategoryPointerAnnotation(String label,
    Comparable key,
    double value,
    double angle) 
{
                                                   
        super(label, key, value);
        this.angle = angle;
        this.tipRadius = DEFAULT_TIP_RADIUS;
        this.baseRadius = DEFAULT_BASE_RADIUS;
        this.arrowLength = DEFAULT_ARROW_LENGTH;
        this.arrowWidth = DEFAULT_ARROW_WIDTH;
        this.labelOffset = DEFAULT_LABEL_OFFSET;
        this.arrowStroke = new BasicStroke(1.0f);
        this.arrowPaint = Color.black;
}

Creates a new label and arrow annotation.

Parameters:

label - the label (null permitted).

key - the category key.

value - the y-value (measured against the chart's range axis).

angle - the angle of the arrow's line (in radians).

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

Returns a clone of the annotation.

 public  void draw(Graphics2D g2,
    CategoryPlot plot,
    Rectangle2D dataArea,
    CategoryAxis domainAxis,
    ValueAxis rangeAxis) 
{
        PlotOrientation orientation = plot.getOrientation();
        RectangleEdge domainEdge = Plot.resolveDomainAxisLocation(
                plot.getDomainAxisLocation(), orientation);
        RectangleEdge rangeEdge = Plot.resolveRangeAxisLocation(
                plot.getRangeAxisLocation(), orientation);
        CategoryDataset dataset = plot.getDataset();
        int catIndex = dataset.getColumnIndex(getCategory());
        int catCount = dataset.getColumnCount();
        double j2DX = domainAxis.getCategoryMiddle(catIndex, catCount, 
                dataArea, domainEdge);
        double j2DY = rangeAxis.valueToJava2D(getValue(), dataArea, rangeEdge);
        if (orientation == PlotOrientation.HORIZONTAL) {
            double temp = j2DX;
            j2DX = j2DY;
            j2DY = temp;
        }
        double startX = j2DX + Math.cos(this.angle) * this.baseRadius;
        double startY = j2DY + Math.sin(this.angle) * this.baseRadius;
        double endX = j2DX + Math.cos(this.angle) * this.tipRadius;
        double endY = j2DY + Math.sin(this.angle) * this.tipRadius;
        double arrowBaseX = endX + Math.cos(this.angle) * this.arrowLength;
        double arrowBaseY = endY + Math.sin(this.angle) * this.arrowLength;
        double arrowLeftX = arrowBaseX 
            + Math.cos(this.angle + Math.PI / 2.0) * this.arrowWidth;
        double arrowLeftY = arrowBaseY 
            + Math.sin(this.angle + Math.PI / 2.0) * this.arrowWidth;
        double arrowRightX = arrowBaseX 
            - Math.cos(this.angle + Math.PI / 2.0) * this.arrowWidth;
        double arrowRightY = arrowBaseY 
            - Math.sin(this.angle + Math.PI / 2.0) * this.arrowWidth;
        GeneralPath arrow = new GeneralPath();
        arrow.moveTo((float) endX, (float) endY);
        arrow.lineTo((float) arrowLeftX, (float) arrowLeftY);
        arrow.lineTo((float) arrowRightX, (float) arrowRightY);
        arrow.closePath();
        g2.setStroke(this.arrowStroke);
        g2.setPaint(this.arrowPaint);
        Line2D line = new Line2D.Double(startX, startY, endX, endY);
        g2.draw(line);
        g2.fill(arrow);
        // draw the label
        g2.setFont(getFont());
        g2.setPaint(getPaint());
        double labelX = j2DX 
            + Math.cos(this.angle) * (this.baseRadius + this.labelOffset);
        double labelY = j2DY 
            + Math.sin(this.angle) * (this.baseRadius + this.labelOffset);
        /* Rectangle2D hotspot = */ TextUtilities.drawAlignedString(getText(), 
                g2, (float) labelX, (float) labelY, getTextAnchor());
        // TODO: implement the entity for the annotation
}

Draws the annotation.

 public boolean equals(Object obj) 
{
        
        if (obj == this) {
            return true;
        }
        if (!(obj instanceof CategoryPointerAnnotation)) {
            return false;
        }
        if (!super.equals(obj)) {
            return false;
        }
        CategoryPointerAnnotation that = (CategoryPointerAnnotation) obj;
        if (this.angle != that.angle) {
            return false;
        }
        if (this.tipRadius != that.tipRadius) {
            return false;
        }
        if (this.baseRadius != that.baseRadius) {
            return false;
        }
        if (this.arrowLength != that.arrowLength) {
            return false;
        }
        if (this.arrowWidth != that.arrowWidth) {
            return false;
        }
        if (!this.arrowPaint.equals(that.arrowPaint)) {
            return false;
        }
        if (!ObjectUtilities.equal(this.arrowStroke, that.arrowStroke)) {
            return false;
        }
        if (this.labelOffset != that.labelOffset) {
            return false;
        }
        return true;
}

Tests this annotation for equality with an arbitrary object.

 public double getAngle() 
{
        return this.angle;
}

Returns the angle of the arrow.

 public double getArrowLength() 
{
        return this.arrowLength;
}

Returns the arrow length.

 public Paint getArrowPaint() 
{
        return this.arrowPaint;
}

Returns the paint used for the arrow.

 public Stroke getArrowStroke() 
{
        return this.arrowStroke;
}

Returns the stroke used to draw the arrow line.

 public double getArrowWidth() 
{
        return this.arrowWidth;
}

Returns the arrow width.

 public double getBaseRadius() 
{
        return this.baseRadius;
}

Returns the base radius.

 public double getLabelOffset() 
{
        return this.labelOffset;
}

Returns the label offset.

 public double getTipRadius() 
{
        return this.tipRadius;
}

Returns the tip radius.

 public int hashCode() 
{
        int result = 193;
        long temp = Double.doubleToLongBits(this.angle);
        result = 37 * result + (int) (temp ^ (temp  > > > 32));
        temp = Double.doubleToLongBits(this.tipRadius);
        result = 37 * result + (int) (temp ^ (temp  > > > 32));
        temp = Double.doubleToLongBits(this.baseRadius);
        result = 37 * result + (int) (temp ^ (temp  > > > 32));
        temp = Double.doubleToLongBits(this.arrowLength);
        result = 37 * result + (int) (temp ^ (temp  > > > 32));
        temp = Double.doubleToLongBits(this.arrowWidth);
        result = 37 * result + (int) (temp ^ (temp  > > > 32));
        result = 37 * result + HashUtilities.hashCodeForPaint(this.arrowPaint);
        result = 37 * result + this.arrowStroke.hashCode();
        temp = Double.doubleToLongBits(this.labelOffset);
        result = 37 * result + (int) (temp ^ (temp  > > > 32));
        return result;
}

Returns a hash code for this instance.

 public  void setAngle(double angle) 
{
        this.angle = angle;
}

Sets the angle of the arrow.

 public  void setArrowLength(double length) 
{
        this.arrowLength = length;
}

Sets the arrow length.

 public  void setArrowPaint(Paint paint) 
{
        if (paint == null) {
            throw new IllegalArgumentException("Null 'paint' argument.");
        }
        this.arrowPaint = paint;
}

Sets the paint used for the arrow.

 public  void setArrowStroke(Stroke stroke) 
{
        if (stroke == null) {
            throw new IllegalArgumentException("Null 'stroke' not permitted.");
        }
        this.arrowStroke = stroke;
}

Sets the stroke used to draw the arrow line.

 public  void setArrowWidth(double width) 
{
        this.arrowWidth = width;
}

Sets the arrow width.

 public  void setBaseRadius(double radius) 
{
        this.baseRadius = radius;
}

Sets the base radius.

 public  void setLabelOffset(double offset) 
{
        this.labelOffset = offset;
}

Sets the label offset (from the arrow base, continuing in a straight line, in Java2D units).

 public  void setTipRadius(double radius) 
{
        this.tipRadius = radius;
}

Sets the tip radius.