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

Class CurveTo

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.CurveTo

public class CurveTo
extends EndPointCommand

A PathCommand that represents a cubic Bézier segment.

Field Summary

Fields

Modifier and Type	Field and Description
protected double	x1
protected double	x2
protected double	y1
protected double	y2

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

x, y

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

relative

Constructor Summary

Constructors

Constructor and Description
CurveTo() Creates a curve PathCommand.
CurveTo(CurveTo curveto) Creates a copy of the given curve PathCommand.
CurveTo(double x1, double y1, double x2, double y2, double x, double y) Creates a curve PathCommand with the given points.
CurveTo(double x1, double y1, double x2, double y2, double x, double y, boolean relative) Creates a curve PathCommand with the given points.

Method Summary

Modifier and Type	Method and Description
void	appendTo(StringBuilder build)
CurveTo	copy() Returns a copy of the path command.
double	getX1() Returns the x-coordinate of the beginning control point of the curve.
double	getX2() Returns the x-coordinate of the ending control point of the curve
double	getY1() Returns the y-coordinate of the beginning control point of the curve.
double	getY2() Returns the y-coordinate of the ending control point of the curve
boolean	nearEqual(PathCommand command) Determines equality of two commands using rounded values.
void	setX1(double x1) Sets the x-coordinate of the beginning control point of the curve.
void	setX2(double x2) Sets the x-coordinate of the ending control point of the curve.
void	setY1(double y1) Sets the y-coordinate of the beginning control point of the curve.
void	setY2(double y2) Sets the y-coordinate of the ending control point of the curve.
void	toAbsolute(PrecisePoint currentPoint, PrecisePoint movePoint) Converts the path commands to absolute coordinates using the given frame of reference and the last move.
List<PathCommand>	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

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

isRelative, setRelative

Methods inherited from class java.lang.Object

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

Field Detail

x1

protected double x1

y1

protected double y1

x2

protected double x2

y2

protected double y2

Constructor Detail

CurveTo

public CurveTo()

Creates a curve PathCommand. Defaults to absolute.

CurveTo

public CurveTo(CurveTo curveto)

Creates a copy of the given curve PathCommand.

Parameters:

curveto - the curve to copy

CurveTo

public CurveTo(double x1,
               double y1,
               double x2,
               double y2,
               double x,
               double y)

Creates a curve PathCommand with the given points. Defaults to absolute.

Parameters:

x1 - the x-coordinate of the beginning control point of the curve

y1 - the y-coordinate of the beginning control point of the curve

x2 - the x-coordinate of the ending control point of the curve

y2 - the y-coordinate of the ending control point of the curve

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

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

CurveTo

public CurveTo(double x1,
               double y1,
               double x2,
               double y2,
               double x,
               double y,
               boolean relative)

Creates a curve PathCommand with the given points.

Parameters:

x1 - the x-coordinate of the beginning control point of the curve

y1 - the y-coordinate of the beginning control point of the curve

x2 - the x-coordinate of the ending control point of the curve

y2 - the y-coordinate of the ending control point of the curve

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

Method Detail

copy

public CurveTo 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

getX1

public double getX1()

Returns the x-coordinate of the beginning control point of the curve.

Returns:

the x-coordinate of the beginning control point of the curve

getX2

public double getX2()

Returns the x-coordinate of the ending control point of the curve

Returns:

the x-coordinate of the ending control point of the curve

getY1

public double getY1()

Returns the y-coordinate of the beginning control point of the curve.

Returns:

the y-coordinate of the beginning control point of the curve

getY2

public double getY2()

Returns the y-coordinate of the ending control point of the curve

Returns:

the y-coordinate of the ending control point of the curve

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

setX1

public void setX1(double x1)

Sets the x-coordinate of the beginning control point of the curve.

Parameters:

x1 - the x-coordinate of the beginning control point of the curve

setX2

public void setX2(double x2)

Sets the x-coordinate of the ending control point of the curve.

Parameters:

x2 - the x-coordinate of the ending control point of the curve

setY1

public void setY1(double y1)

Sets the y-coordinate of the beginning control point of the curve.

Parameters:

y1 - the y-coordinate of the beginning control point of the curve

setY2

public void setY2(double y2)

Sets the y-coordinate of the ending control point of the curve.

Parameters:

y2 - the y-coordinate of the ending control point of the curve

toAbsolute

public void toAbsolute(PrecisePoint currentPoint,
                       PrecisePoint movePoint)

Description copied from class: PathCommand

Converts the path commands to absolute coordinates using the given frame of reference and the last move.

Overrides:

toAbsolute in class EndPointCommand

Parameters:

currentPoint - frame of reference

movePoint - last move point

toCurve

public List<PathCommand> 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

appendTo

public void appendTo(StringBuilder build)

Specified by:

appendTo in class PathCommand