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

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.CurveToQuadratic

public class CurveToQuadratic
extends EndPointCommand

A PathCommand that represents a quadratic Bézier segment.

Constructor Summary

CurveToQuadratic()
Creates a quadratic curve PathCommand.

CurveToQuadratic(CurveToQuadratic quad)
Creates a copy of the given quadratic curve PathCommand.

CurveToQuadratic(double x1, double y1, double x, double y)
Creates a quadratic curve PathCommand with the given points.

CurveToQuadratic(double x1, double y1, double x, double y, boolean relative)
Creates a quadratic curve PathCommand with the given points.

Method Summary

CurveToQuadratic	copy() Returns a copy of the path command.
double	getX1() Returns the x-coordinate of the control point of the curve.
double	getY1() Returns the y-coordinate of the 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 control point of the curve.
void	setY1(double y1) Sets the y-coordinate of the 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.
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

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

CurveToQuadratic

public CurveToQuadratic()

Creates a quadratic curve PathCommand. Defaults to absolute.

CurveToQuadratic

public CurveToQuadratic(CurveToQuadratic quad)

Creates a copy of the given quadratic curve PathCommand.

Parameters:

quad - the curve to copy

CurveToQuadratic

public CurveToQuadratic(double x1,
                        double y1,
                        double x,
                        double y)

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

Parameters:

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

y1 - the y-coordinate of the 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

CurveToQuadratic

public CurveToQuadratic(double x1,
                        double y1,
                        double x,
                        double y,
                        boolean relative)

Creates a quadratic curve PathCommand with the given points.

Parameters:

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

y1 - the y-coordinate of the 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 CurveToQuadratic 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 control point of the curve.

Returns:

the x-coordinate of the control point of the curve

getY1

public double getY1()

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

Returns:

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

Parameters:

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

setY1

public void setY1(double y1)

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

Parameters:

y1 - the y-coordinate of the 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 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