javafx.scene.shape

Class ArcTo

java.lang.Object

javafx.scene.shape.PathElement

javafx.scene.shape.ArcTo

public class ArcTo
extends PathElement

A path element that forms an arc from the previous coordinates to the specified x and y coordinates using the specified radius.

For more information on path elements see the Path and PathElement classes.

Example:

import javafx.scene.shape.*;

Path path = new Path();

MoveTo moveTo = new MoveTo();
moveTo.setX(0.0);
moveTo.setY(0.0);

ArcTo arcTo = new ArcTo();
arcTo.setX(50.0);
arcTo.setY(50.0);
arcTo.setRadiusX(50.0);
arcTo.setRadiusY(50.0);

path.getElements().add(moveTo);
path.getElements().add(arcTo);

Following image demonstrates radiusX, radiusY and xAxisRotation parameters: radiusX is the horizontal radius of the full ellipse of which this arc is a partial section, radiusY is its vertical radius. xAxisRotation defines the rotation of the ellipse in degrees.

In most cases, there are four options of how to draw an arc from starting point to given end coordinates. They can be distinguished by largeArcFlag and sweepFlag parameters. largeArcFlag == true means that the arc greater than 180 degrees will be drawn. sweepFlag == true means that the arc will be drawn in the positive angle direction - i.e. the angle in the ellipse formula will increase from [fromX, fromY] to [x,y]. Following images demonstrate this behavior:

Since:

JavaFX 2.0

Constructor Summary

Constructors

Constructor and Description
ArcTo() Creates an empty instance of ArcTo.
ArcTo(double radiusX, double radiusY, double xAxisRotation, double x, double y, boolean largeArcFlag, boolean sweepFlag) Creates a new instance of ArcTo.

Method Summary

Modifier and Type	Method and Description
double	getRadiusX()
double	getRadiusY()
double	getX()
double	getXAxisRotation() Gets the x-axis rotation in degrees.
double	getY()
void	impl_addTo(Path2D path) Deprecated. This is an internal API that is not intended for use and will be removed in the next version
boolean	isLargeArcFlag()
boolean	isSweepFlag()
BooleanProperty	largeArcFlagProperty()
DoubleProperty	radiusXProperty()
DoubleProperty	radiusYProperty()
void	setLargeArcFlag(boolean value)
void	setRadiusX(double value)
void	setRadiusY(double value)
void	setSweepFlag(boolean value)
void	setX(double value)
void	setXAxisRotation(double value) Sets the x-axis rotation in degrees.
void	setY(double value)
BooleanProperty	sweepFlagProperty()
String	toString() Returns a string representation of this ArcTo object.
DoubleProperty	XAxisRotationProperty() The x-axis rotation in degrees.
DoubleProperty	xProperty()
DoubleProperty	yProperty()

Methods inherited from class javafx.scene.shape.PathElement

absoluteProperty, isAbsolute, setAbsolute

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ArcTo

public ArcTo()

Creates an empty instance of ArcTo.

ArcTo

public ArcTo(double radiusX,
             double radiusY,
             double xAxisRotation,
             double x,
             double y,
             boolean largeArcFlag,
             boolean sweepFlag)

Creates a new instance of ArcTo.

Parameters:

radiusX - horizontal radius of the arc

radiusY - vertical radius of the arc

xAxisRotation - the x-axis rotation in degrees

x - horizontal position of the arc end point

y - vertical position of the arc end point

largeArcFlag - large arg flag: determines which arc to use (large/small)

sweepFlag - sweep flag: determines which arc to use (direction)

Method Detail

setRadiusX

public final void setRadiusX(double value)

getRadiusX

public final double getRadiusX()

radiusXProperty

public final DoubleProperty radiusXProperty()

setRadiusY

public final void setRadiusY(double value)

getRadiusY

public final double getRadiusY()

radiusYProperty

public final DoubleProperty radiusYProperty()

setXAxisRotation

public final void setXAxisRotation(double value)

Sets the x-axis rotation in degrees.

Parameters:

value - the x-axis rotation in degrees.

getXAxisRotation

public final double getXAxisRotation()

Gets the x-axis rotation in degrees.

Returns:

the x-axis rotation in degrees.

XAxisRotationProperty

public final DoubleProperty XAxisRotationProperty()

The x-axis rotation in degrees.

Returns:

The XAxisRotation property

setLargeArcFlag

public final void setLargeArcFlag(boolean value)

isLargeArcFlag

public final boolean isLargeArcFlag()

largeArcFlagProperty

public final BooleanProperty largeArcFlagProperty()

setSweepFlag

public final void setSweepFlag(boolean value)

isSweepFlag

public final boolean isSweepFlag()

sweepFlagProperty

public final BooleanProperty sweepFlagProperty()

setX

public final void setX(double value)

getX

public final double getX()

xProperty

public final DoubleProperty xProperty()

setY

public final void setY(double value)

getY

public final double getY()

yProperty

public final DoubleProperty yProperty()

impl_addTo

@Deprecated
public void impl_addTo(Path2D path)

Deprecated. This is an internal API that is not intended for use and will be removed in the next version

Specified by:

impl_addTo in class PathElement

toString

public String toString()

Returns a string representation of this ArcTo object.

Overrides:

toString in class Object

Returns:

a string representation of this ArcTo object.