com.sencha.gxt.chart.client.draw.path
Class EllipticalArc

java.lang.Object
  com.sencha.gxt.chart.client.draw.path.PathCommand
      com.sencha.gxt.chart.client.draw.path.EndPointCommand
          com.sencha.gxt.chart.client.draw.path.EllipticalArc

public class EllipticalArc
extends EndPointCommand

A PathCommand that represents a segment of an ellipse.

Constructor Summary

EllipticalArc()
Creates an elliptical arc PathCommand.

EllipticalArc(double radiusX, double radiusY, double xAxisRotation, int largeArcFlag, int sweepFlag, double x, double y)
Creates an elliptical arc PathCommand using the given values.

EllipticalArc(double radiusX, double radiusY, double xAxisRotation, int largeArcFlag, int sweepFlag, double x, double y, boolean relative)
Creates an elliptical arc PathCommand using the given values.

EllipticalArc(EllipticalArc command)
Creates a copy of the given elliptical arc.

Method Summary

EllipticalArc	copy() Returns a copy of the path command.
int	getLargeArcFlag() Returns the large arc flag of the arc.
double	getRadiusX() Returns the radius of the ellipse on its x-axis.
double	getRadiusY() Returns the radius of the ellipse on its y-axis.
int	getSweepFlag() Returns the sweep flag of the arc.
double	getxAxisRotation() Returns the rotation of the ellipse in relation to the current coordinate system.
boolean	nearEqual(PathCommand command) Determines equality of two commands using rounded values.
void	setLargeArcFlag(int largeArcFlag) Sets the large arc flag of the arc.
void	setRadiusX(double radiusX) Sets the radius of the ellipse on its x-axis.
void	setRadiusY(double radiusY) Sets the radius of the ellipse on its y-axis.
void	setSweepFlag(int sweepFlag) Sets the sweep flag of the arc.
void	setxAxisRotation(double xAxisRotation) Sets the rotation of the ellipse in relation to the current coordinate system
CurveTo	toCurve(PrecisePoint currentPoint, PrecisePoint movePoint, PrecisePoint curvePoint, PrecisePoint quadraticPoint) Converts the PathCommand to a CurveTo command.
String	toString()

Methods inherited from class com.sencha.gxt.chart.client.draw.path.EndPointCommand

getX, getY, setX, setY, toAbsolute

Methods inherited from class com.sencha.gxt.chart.client.draw.path.PathCommand

isRelative, setRelative

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

EllipticalArc

public EllipticalArc()

Creates an elliptical arc PathCommand. Defaults to absolute.

EllipticalArc

public EllipticalArc(double radiusX,
                     double radiusY,
                     double xAxisRotation,
                     int largeArcFlag,
                     int sweepFlag,
                     double x,
                     double y)

Creates an elliptical arc PathCommand using the given values. Defaults to absolute.

Parameters:

radiusX - the radius of the ellipse on its x-axis

radiusY - the radius of the ellipse on its y-axis

xAxisRotation - the rotation of the ellipse in relation to the current coordinate system

largeArcFlag - if 0 then the smaller arc will be used, if 1 then the larger

sweepFlag - if 0 then the arc will be in a negative angle, if 1 then in a positive angle

x - the x-coordinate of the end of the segment

y - the y-coordinate of the end of the segment

EllipticalArc

public EllipticalArc(double radiusX,
                     double radiusY,
                     double xAxisRotation,
                     int largeArcFlag,
                     int sweepFlag,
                     double x,
                     double y,
                     boolean relative)

Creates an elliptical arc PathCommand using the given values.

Parameters:

radiusX - the radius of the ellipse on its x-axis

radiusY - the radius of the ellipse on its y-axis

xAxisRotation - the rotation of the ellipse in relation to the current coordinate system

largeArcFlag - if 0 then the smaller arc will be used, if 1 then the larger

sweepFlag - if 0 then the arc will be in a negative angle, if 1 then in a positive angle

x - the x-coordinate of the end of the segment

y - the y-coordinate of the end of the segment

relative - true if the command is relative

EllipticalArc

public EllipticalArc(EllipticalArc command)

Creates a copy of the given elliptical arc.

Parameters:

command - the arc to be copied

Method Detail

copy

public EllipticalArc copy()

Description copied from class: PathCommand

Returns a copy of the path command.

Specified by:

copy in class PathCommand

Returns:

a copy of the path command

getLargeArcFlag

public int getLargeArcFlag()

Returns the large arc flag of the arc.

Returns:

the large arc flag of the arc

getRadiusX

public double getRadiusX()

Returns the radius of the ellipse on its x-axis.

Returns:

the radius of the ellipse on its x-axis

getRadiusY

public double getRadiusY()

Returns the radius of the ellipse on its y-axis.

Returns:

the radius of the ellipse on its y-axis

getSweepFlag

public int getSweepFlag()

Returns the sweep flag of the arc.

Returns:

the sweep flag of the arc

getxAxisRotation

public double getxAxisRotation()

Returns the rotation of the ellipse in relation to the current coordinate system.

Returns:

the rotation of the ellipse in relation to the current coordinate system

nearEqual

public boolean nearEqual(PathCommand command)

Description copied from class: PathCommand

Determines equality of two commands using rounded values.

Specified by:

nearEqual in class PathCommand

Parameters:

command - the command to compare

Returns:

true if equal and false otherwise

setLargeArcFlag

public void setLargeArcFlag(int largeArcFlag)

Sets the large arc flag of the arc.

Parameters:

largeArcFlag - if 0 then the smaller arc will be used, if 1 then the larger

setRadiusX

public void setRadiusX(double radiusX)

Sets the radius of the ellipse on its x-axis.

Parameters:

radiusX - the radius of the ellipse on its x-axis

setRadiusY

public void setRadiusY(double radiusY)

Sets the radius of the ellipse on its y-axis.

Parameters:

radiusY - the radius of the ellipse on its y-axis

setSweepFlag

public void setSweepFlag(int sweepFlag)

Sets the sweep flag of the arc.

Parameters:

sweepFlag - if 0 then the arc will be in a negative angle, if 1 then in a positive angle

setxAxisRotation

public void setxAxisRotation(double xAxisRotation)

Sets the rotation of the ellipse in relation to the current coordinate system

Parameters:

xAxisRotation - the rotation of the ellipse in relation to the current coordinate system

toCurve

public CurveTo toCurve(PrecisePoint currentPoint,
                       PrecisePoint movePoint,
                       PrecisePoint curvePoint,
                       PrecisePoint quadraticPoint)

Description copied from class: PathCommand

Converts the PathCommand to a CurveTo command. If a MoveTo no conversion takes place, but the current move point is updated.

Specified by:

toCurve in class PathCommand

Parameters:

currentPoint - the current point of the path

movePoint - the frame of reference for the path

curvePoint - the frame of reference for the Bézier

quadraticPoint - the beginning of the last quadratic curve

Returns:

the converted command

toString

public String toString()

Overrides:

toString in class Object