Java Arc.setCenterY方法代码示例

import javafx.scene.shape.Arc; //导入方法依赖的package包/类
/**
 * Generates the body arc of the arrow.
 *
 * @param startAngle the starting angle of the arc, in radians
 * @param radius     the radius of the arc
 * @param length     the length of the arc, in the same unit as {@code radius}
 * @param xOffset    how much to offset the arc along the X-axis
 */
private static Arc makeBody(double startAngle, double radius, double length, double xOffset) {
  final double angRad = length / radius; // Isn't math nice?
  final double angle = Math.toDegrees(angRad);

  Arc arc = new Arc();
  arc.setRadiusX(radius);
  arc.setRadiusY(radius);
  arc.setCenterX(xOffset);
  arc.setCenterY(0);
  arc.setStartAngle(Math.toDegrees(startAngle));
  arc.setLength(-angle); // -angle because +y is "down", but JavaFX Arc treats +y as "up"

  arc.setFill(null);
  arc.setStroke(Color.WHITE);

  return arc;
}
 

import javafx.scene.shape.Arc; //导入方法依赖的package包/类
@Override
public Node drawNode() {
    Arc arc = new Arc();
    arc.setCenterX(DEFAULT_ARC_X);
    arc.setCenterY(DEFAULT_ARC_Y);
    arc.setRadiusX(DEFAULT_ARC_RADIUS_X);
    arc.setRadiusY(DEFAULT_ARC_RADIUS_Y);
    arc.setStartAngle(DEFAULT_ARC_START_ANGLE);
    arc.setLength(DEFAULT_ARC_LENGTH);
    arc.setType(ArcType.OPEN);
    arc.setStrokeLineCap(StrokeLineCap.BUTT);

    Pane slot = new Pane();
    effect.setEffect(arc, slot);
    return slot;
}
 

import javafx.scene.shape.Arc; //导入方法依赖的package包/类
/**
 * Kreisausschnitt für Symbol.
 *
 * @param radius
 *            Radius des Kreisausschnitts.
 * @param centerX
 *            x-Koordinate des Kreismittelpunkts.
 * @param centerY
 *            y-Koordinate des Kreismittelpunkts.
 * @return Kreisausschnitt als 2D Objekt
 */
private Arc createArc(final double radius, final double centerX, final double centerY) {
	final Arc arc = new Arc();
	arc.setCenterX(centerX);
	arc.setCenterY(centerY);
	arc.setRadiusX(radius);
	arc.setRadiusY(radius);
	arc.setStartAngle(START_ANGLE);
	arc.setLength(ARC_LENGTH);
	arc.setType(ArcType.OPEN);
	arc.setStrokeWidth(STROKE_WIDTH);
	arc.setStroke(Color.web(COLOR));
	arc.setFill(Color.TRANSPARENT);
	return arc;
}
 

import javafx.scene.shape.Arc; //导入方法依赖的package包/类
private void drawTimeSections() {
    if (sectionMap.isEmpty()) return;
    ZonedDateTime     time              = tile.getTime();
    DayOfWeek         day               = time.getDayOfWeek();
    boolean           isAM              = time.get(ChronoField.AMPM_OF_DAY) == 0;
    double            offset            = 90;
    double            angleStep         = 360.0 / 60.0;
    boolean           highlightSections = tile.isHighlightSections();
    for (TimeSection section : sectionMap.keySet()) {
        LocalTime   start     = section.getStart();
        LocalTime   stop      = section.getStop();
        boolean     isStartAM = start.get(ChronoField.AMPM_OF_DAY) == 0;
        boolean     isStopAM  = stop.get(ChronoField.AMPM_OF_DAY) == 0;
        boolean     draw      = isAM ? (isStartAM || isStopAM) : (!isStartAM || !isStopAM);
        if (!section.getDays().contains(day)) { draw = false; }
        if (!section.isActive()) { draw = false; }
        if (draw) {
            double sectionStartAngle = (start.getHour() % 12 * 5.0 + start.getMinute() / 12.0 + start.getSecond() / 300.0) * angleStep + 180;
            double sectionAngleExtend = ((stop.getHour() - start.getHour()) % 12 * 5.0 + (stop.getMinute() - start.getMinute()) / 12.0 + (stop.getSecond() - start.getSecond()) / 300.0) * angleStep;
            if (start.getHour() > stop.getHour()) { sectionAngleExtend = (360.0 - Math.abs(sectionAngleExtend)); }

            Arc arc = sectionMap.get(section);
            arc.setCenterX(clockSize * 0.5);
            arc.setCenterY(clockSize * 0.5);
            arc.setRadiusX(clockSize * 0.45);
            arc.setRadiusY(clockSize * 0.45);
            arc.setStartAngle(-(offset + sectionStartAngle));
            arc.setLength(-sectionAngleExtend);
            arc.setType(ArcType.OPEN);
            arc.setStrokeWidth(clockSize * 0.04);
            arc.setStrokeLineCap(StrokeLineCap.BUTT);
            arc.setFill(null);

            if (highlightSections) {
                arc.setStroke(section.contains(time.toLocalTime()) ? section.getHighlightColor() : section.getColor());
            } else {
                arc.setStroke(section.getColor());
            }
        }
    }
}
 

import javafx.scene.shape.Arc; //导入方法依赖的package包/类
public LoadingArc() {
    Arc arc = new Arc();

    arc.setCenterX(25);
    arc.setCenterY(25);
    arc.setRadiusX(25.0f);
    arc.setRadiusY(25.0f);
    arc.setLength(30.0f);
    arc.setStrokeWidth(5);

    Stop[] stops = new Stop[] { new Stop(0, Color.WHITE), new Stop(1, Color.BLUE)};
    LinearGradient lg1 = new LinearGradient(0, 0, 1, 0, true, CycleMethod.NO_CYCLE, stops);

    arc.setStroke(lg1);

    Rectangle rect = new Rectangle(50, 50);
    rect.setFill(null);
    rect.setStroke(Color.RED);

    getChildren().addAll(rect, arc);


    double time = 0.75;

    Rotate r = new Rotate(0, 25, 25);
    arc.getTransforms().add(r);
    //arc.getTransforms().add(new Scale(-1, 1, 25, 25));

    Timeline timeline = new Timeline();
    KeyFrame kf2 = new KeyFrame(Duration.seconds(time), new KeyValue(r.angleProperty(), 270));


    timeline.getKeyFrames().addAll(kf2);

    Timeline timeline3 = new Timeline(new KeyFrame(Duration.seconds(time), new KeyValue(r.angleProperty(), 360)));


    SequentialTransition st = new SequentialTransition(timeline, timeline3);
    st.setCycleCount(Timeline.INDEFINITE);
    st.setInterpolator(Interpolator.EASE_BOTH);
    st.play();

    //////////

    Timeline timeline2 = new Timeline();
    timeline2.setAutoReverse(true);
    timeline2.setCycleCount(Timeline.INDEFINITE);


    KeyFrame kf = new KeyFrame(Duration.seconds(time), new KeyValue(arc.lengthProperty(), 270, Interpolator.EASE_BOTH));

    timeline2.getKeyFrames().add(kf);
    timeline2.play();
}