@Override
public void draw(Graphics2D g2, DialPlot plot, Rectangle2D frame, Rectangle2D view) {
g2.setPaint(Color.blue);
g2.setStroke(this.outlineStroke);
Rectangle2D lengthRect = DialPlot.rectangleByRadius(frame, getRadius(), getRadius());
Rectangle2D widthRect = DialPlot.rectangleByRadius(frame, getWidthRadius(), getWidthRadius());
double value = plot.getValue(getDatasetIndex());
DialScale scale = plot.getScaleForDataset(getDatasetIndex());
double angle = scale.valueToAngle(value);
Arc2D arc1 = new Arc2D.Double(lengthRect, angle, 0, Arc2D.OPEN);
Point2D pt1 = arc1.getEndPoint();
Arc2D arc2 = new Arc2D.Double(widthRect, angle - 90.0, 180.0, Arc2D.OPEN);
Point2D pt2 = arc2.getStartPoint();
Point2D pt3 = arc2.getEndPoint();
Arc2D arc3 = new Arc2D.Double(widthRect, angle - 180.0, 0.0, Arc2D.OPEN);
Point2D pt4 = arc3.getStartPoint();
GeneralPath gp = new GeneralPath();
gp.moveTo((float) pt1.getX(), (float) pt1.getY());
gp.lineTo((float) pt2.getX(), (float) pt2.getY());
gp.lineTo((float) pt4.getX(), (float) pt4.getY());
gp.lineTo((float) pt3.getX(), (float) pt3.getY());
gp.closePath();
g2.setPaint(getFillPaint());
g2.fill(gp);
g2.setPaint(getOutlinePaint());
Line2D line =
new Line2D.Double(frame.getCenterX(), frame.getCenterY(), pt1.getX(), pt1.getY());
g2.draw(line);
line.setLine(pt2, pt3);
g2.draw(line);
line.setLine(pt3, pt1);
g2.draw(line);
line.setLine(pt2, pt1);
g2.draw(line);
line.setLine(pt2, pt4);
g2.draw(line);
line.setLine(pt3, pt4);
g2.draw(line);
}
/** @param arc the Arc2D object to be converted */
public Element toSVG(Arc2D arc) {
double ext = arc.getAngleExtent();
double width = arc.getWidth();
double height = arc.getHeight();
if (width == 0 || height == 0) {
Line2D line =
new Line2D.Double(arc.getX(), arc.getY(), arc.getX() + width, arc.getY() + height);
if (svgLine == null) {
svgLine = new SVGLine(generatorContext);
}
return svgLine.toSVG(line);
}
if (ext >= 360 || ext <= -360) {
Ellipse2D ellipse = new Ellipse2D.Double(arc.getX(), arc.getY(), width, height);
if (svgEllipse == null) {
svgEllipse = new SVGEllipse(generatorContext);
}
return svgEllipse.toSVG(ellipse);
}
Element svgPath = generatorContext.domFactory.createElementNS(SVG_NAMESPACE_URI, SVG_PATH_TAG);
StringBuffer d = new StringBuffer("");
Point2D startPt = arc.getStartPoint();
Point2D endPt = arc.getEndPoint();
int type = arc.getArcType();
d.append(PATH_MOVE);
d.append(doubleString(startPt.getX()));
d.append(SPACE);
d.append(doubleString(startPt.getY()));
d.append(SPACE);
d.append(PATH_ARC);
d.append(doubleString(width / 2));
d.append(SPACE);
d.append(doubleString(height / 2));
d.append(SPACE);
d.append("0"); // no rotation with J2D arc.
d.append(SPACE);
if (ext > 0) {
// CCW sweep case, ext > 0
if (ext > 180) d.append("1"); // use large arc.
else d.append("0"); // use small arc.
d.append(SPACE);
d.append("0"); // sweep ccw
} else {
// CW sweep case, ext < 0
if (ext < -180) d.append("1"); // use large arc.
else d.append("0"); // use small arc.
d.append(SPACE);
d.append("1"); // sweep cw
}
d.append(SPACE);
d.append(doubleString(endPt.getX()));
d.append(SPACE);
d.append(doubleString(endPt.getY()));
if (type == Arc2D.CHORD) {
d.append(PATH_CLOSE);
} else if (type == Arc2D.PIE) {
double cx = arc.getX() + width / 2;
double cy = arc.getY() + height / 2;
d.append(PATH_LINE_TO);
d.append(SPACE);
d.append(doubleString(cx));
d.append(SPACE);
d.append(doubleString(cy));
d.append(SPACE);
d.append(PATH_CLOSE);
}
svgPath.setAttributeNS(null, SVG_D_ATTRIBUTE, d.toString());
return svgPath;
}
/**
* Draws the scale on the dial plot.
*
* @param g2 the graphics target (<code>null</code> not permitted).
* @param plot the dial plot (<code>null</code> not permitted).
* @param frame the reference frame that is used to construct the geometry of the plot (<code>null
* </code> not permitted).
* @param view the visible part of the plot (<code>null</code> not permitted).
*/
public void draw(Graphics2D g2, DialPlot plot, Rectangle2D frame, Rectangle2D view) {
Rectangle2D arcRect =
DialPlot.rectangleByRadius(frame, this.getTickRadius(), this.getTickRadius());
Rectangle2D arcRectMajor =
DialPlot.rectangleByRadius(
frame,
this.getTickRadius() - this.getMajorTickLength(),
this.getTickRadius() - this.getMajorTickLength());
Rectangle2D arcRectMinor = arcRect;
if (this.getMinorTickCount() > 0 && this.getMinorTickLength() > 0.0) {
arcRectMinor =
DialPlot.rectangleByRadius(
frame,
this.getTickRadius() - this.getMinorTickLength(),
this.getTickRadius() - this.getMinorTickLength());
}
Rectangle2D arcRectForLabels =
DialPlot.rectangleByRadius(
frame,
this.getTickRadius() - this.getTickLabelOffset(),
this.getTickRadius() - this.getTickLabelOffset());
boolean firstLabel = true;
Arc2D arc = new Arc2D.Double();
Line2D workingLine = new Line2D.Double();
Stroke arcStroke = new BasicStroke(0.75f);
for (double v = this.getLowerBound();
v <= this.getUpperBound();
v += this.getMajorTickIncrement()) {
arc.setArc(arcRect, this.getStartAngle(), valueToAngle(v) - this.getStartAngle(), Arc2D.OPEN);
g2.setPaint(this.getMajorTickPaint());
g2.setStroke(arcStroke);
g2.draw(arc);
Point2D pt0 = arc.getEndPoint();
arc.setArc(
arcRectMajor, this.getStartAngle(), valueToAngle(v) - this.getStartAngle(), Arc2D.OPEN);
Point2D pt1 = arc.getEndPoint();
g2.setPaint(this.getMajorTickPaint());
g2.setStroke(this.getMajorTickStroke());
workingLine.setLine(pt0, pt1);
g2.draw(workingLine);
arc.setArc(
arcRectForLabels,
this.getStartAngle(),
valueToAngle(v) - this.getStartAngle(),
Arc2D.OPEN);
Point2D pt2 = arc.getEndPoint();
if (this.getTickLabelsVisible()) {
if (!firstLabel || this.getFirstTickLabelVisible()) {
g2.setFont(this.getTickLabelFont());
TextUtilities.drawAlignedString(
this.getTickLabelFormatter().format(v),
g2,
(float) pt2.getX(),
(float) pt2.getY(),
TextAnchor.CENTER);
}
}
firstLabel = false;
// now do the minor tick marks
if (this.getMinorTickCount() > 0 && this.getMinorTickLength() > 0.0) {
double minorTickIncrement = this.getMajorTickIncrement() / (this.getMinorTickCount() + 1);
for (int i = 0; i < this.getMinorTickCount(); i++) {
double vv = v + ((i + 1) * minorTickIncrement);
if (vv >= this.getUpperBound()) {
break;
}
double angle = valueToAngle(vv);
arc.setArc(arcRect, this.getStartAngle(), angle - this.getStartAngle(), Arc2D.OPEN);
pt0 = arc.getEndPoint();
arc.setArc(arcRectMinor, this.getStartAngle(), angle - this.getStartAngle(), Arc2D.OPEN);
Point2D pt3 = arc.getEndPoint();
g2.setStroke(this.getMinorTickStroke());
g2.setPaint(this.getMinorTickPaint());
workingLine.setLine(pt0, pt3);
g2.draw(workingLine);
}
}
}
}
