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Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class QuadCurve2D.Float - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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java.awt.geom
Class QuadCurve2D.Float

java.lang.Object
  |
  +--java.awt.geom.QuadCurve2D
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        +--java.awt.geom.QuadCurve2D.Float

Enclosing class:

QuadCurve2D

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public static class QuadCurve2D.Float

extends QuadCurve2D

A quadratic parametric curve segment specified with float coordinates.

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Inner classes inherited from class java.awt.geom.QuadCurve2D

QuadCurve2D.Double, QuadCurve2D.Float

 

Field Summary
float	ctrlx           The x coordinate of the control point of the quadratic curve segment.
float	ctrly           The y coordinate of the control point of the quadratic curve segment.
float	x1           The x coordinate of the start point of the quadratic curve segment.
float	x2           The x coordinate of the end point of the quadratic curve segment.
float	y1           The y coordinate of the start point of the quadratic curve segment.
float	y2           The y coordinate of the end point of the quadratic curve segment.

 

Constructor Summary

QuadCurve2D.Float()           Constructs and initializes a QuadCurve2D with coordinates (0, 0, 0, 0, 0, 0).

QuadCurve2D.Float(float x1, float y1, float ctrlx, float ctrly, float x2, float y2)           Constructs and initializes a QuadCurve2D from the specified coordinates.

 

Method Summary
Rectangle2D	getBounds2D()           Returns the bounding box of this QuadCurve2D.
Point2D	getCtrlPt()           Returns the control point.
double	getCtrlX()           Returns the x coordinate of the control point in double precision.
double	getCtrlY()           Returns the y coordinate of the control point in double precision.
Point2D	getP1()           Returns the start point.
Point2D	getP2()           Returns the end point.
double	getX1()           Returns the x coordinate of the start point in double precision.
double	getX2()           Returns the x coordinate of the end point in double precision.
double	getY1()           Returns the y coordinate of the start point in double precision.
double	getY2()           Returns the y coordinate of the end point in double precision.
void	setCurve(double x1, double y1, double ctrlx, double ctrly, double x2, double y2)           Sets the location of the endpoints and controlpoint of this QuadCurve2D to the specified double coordinates.
void	setCurve(float x1, float y1, float ctrlx, float ctrly, float x2, float y2)           Sets the location of the endpoints and controlpoint of this curve to the specified float coordinates.

 

Methods inherited from class java.awt.geom.QuadCurve2D

clone, contains, contains, contains, contains, getBounds, getFlatness, getFlatness, getFlatness, getFlatnessSq, getFlatnessSq, getFlatnessSq, getPathIterator, getPathIterator, intersects, intersects, setCurve, setCurve, setCurve, setCurve, solveQuadratic, subdivide, subdivide, subdivide

 

Methods inherited from class java.lang.Object

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

 

Field Detail

x1

public float x1

The x coordinate of the start point of the quadratic curve segment.

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y1

public float y1

The y coordinate of the start point of the quadratic curve segment.

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ctrlx

public float ctrlx

The x coordinate of the control point of the quadratic curve segment.

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ctrly

public float ctrly

The y coordinate of the control point of the quadratic curve segment.

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x2

public float x2

The x coordinate of the end point of the quadratic curve segment.

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y2

public float y2

The y coordinate of the end point of the quadratic curve segment.

Constructor Detail

QuadCurve2D.Float

public QuadCurve2D.Float()

Constructs and initializes a QuadCurve2D with coordinates (0, 0, 0, 0, 0, 0).

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QuadCurve2D.Float

public QuadCurve2D.Float(float x1,
                         float y1,
                         float ctrlx,
                         float ctrly,
                         float x2,
                         float y2)

Constructs and initializes a QuadCurve2D from the specified coordinates.

Parameters:

x1, y1 - the starting point coordinates

ctrlx, ctrly - the coordinates of the control point

x2, y2 - the ending point coordinates

Method Detail

getX1

public double getX1()

Returns the x coordinate of the start point in double precision.

Overrides:

getX1 in class QuadCurve2D

Returns:

the x coordinate of the starting point.

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getY1

public double getY1()

Returns the y coordinate of the start point in double precision.

Overrides:

getY1 in class QuadCurve2D

Returns:

the y coordinate of the starting point.

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getP1

public Point2D getP1()

Returns the start point.

Overrides:

getP1 in class QuadCurve2D

Returns:

a Point2D object that is the starting point of this QuadCurve2D.

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getCtrlX

public double getCtrlX()

Returns the x coordinate of the control point in double precision.

Overrides:

getCtrlX in class QuadCurve2D

Returns:

the x coordinate of the control point.

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getCtrlY

public double getCtrlY()

Returns the y coordinate of the control point in double precision.

Overrides:

getCtrlY in class QuadCurve2D

Returns:

the y coordiante of the control point.

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getCtrlPt

public Point2D getCtrlPt()

Returns the control point.

Overrides:

getCtrlPt in class QuadCurve2D

Returns:

a Point2D that is the control point of this QuadCurve2D.

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getX2

public double getX2()

Returns the x coordinate of the end point in double precision.

Overrides:

getX2 in class QuadCurve2D

Returns:

the x coordinate of the end point.

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getY2

public double getY2()

Returns the y coordinate of the end point in double precision.

Overrides:

getY2 in class QuadCurve2D

Returns:

the y coordiante of the end point.

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getP2

public Point2D getP2()

Returns the end point.

Overrides:

getP2 in class QuadCurve2D

Returns:

a Point2D that is the end point of this QuadCurve2D.

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setCurve

public void setCurve(double x1,
                     double y1,
                     double ctrlx,
                     double ctrly,
                     double x2,
                     double y2)

Sets the location of the endpoints and controlpoint of this QuadCurve2D to the specified double coordinates.

Overrides:

setCurve in class QuadCurve2D

Parameters:

x1, y1 - the coordinates of the starting point

ctrlx, ctrly - the coordinates of the control point

x2 y2 - the coordinates of the ending point

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setCurve

public void setCurve(float x1,
                     float y1,
                     float ctrlx,
                     float ctrly,
                     float x2,
                     float y2)

Sets the location of the endpoints and controlpoint of this curve to the specified float coordinates.

Parameters:

x1, y1 - the coordinates of the starting point

ctrlx, ctrly - the coordinates of the control point

x2, y2 - the coordinates of the ending point

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getBounds2D

public Rectangle2D getBounds2D()

Returns the bounding box of this QuadCurve2D.

Returns:

a Rectangle2D that is the bounding box of the shape of this QuadCurve2D.

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