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CubicCurve2D.Double (Java 2 Platform SE 5.0) - JDK 5 Documentation v1.5.0, Java 2 SDK 英文文档

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java.awt.geom
Class CubicCurve2D.Double

java.lang.Object
  java.awt.geom.CubicCurve2D
      java.awt.geom.CubicCurve2D.Double

All Implemented Interfaces:

Shape, Cloneable

Enclosing class:

CubicCurve2D

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public static class CubicCurve2D.Double
extends CubicCurve2D

A cubic parametric curve segment specified with double coordinates.

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Nested Class Summary

 

Nested classes/interfaces inherited from class java.awt.geom.CubicCurve2D
CubicCurve2D.Double, CubicCurve2D.Float

 

Field Summary
double	ctrlx1           The X coordinate of the first control point of the cubic curve segment.
double	ctrlx2           The X coordinate of the second control point of the cubic curve segment.
double	ctrly1           The Y coordinate of the first control point of the cubic curve segment.
double	ctrly2           The Y coordinate of the second control point of the cubic curve segment.
double	x1           The X coordinate of the start point of the cubic curve segment.
double	x2           The X coordinate of the end point of the cubic curve segment.
double	y1           The Y coordinate of the start point of the cubic curve segment.
double	y2           The Y coordinate of the end point of the cubic curve segment.

 

Constructor Summary
CubicCurve2D.Double()           Constructs and initializes a CubicCurve with coordinates (0, 0, 0, 0, 0, 0).
CubicCurve2D.Double(double x1, double y1, double ctrlx1, double ctrly1, double ctrlx2, double ctrly2, double x2, double y2)           Constructs and initializes a CubicCurve2D from the specified coordinates.

 

Method Summary
Rectangle2D	getBounds2D()           Returns the bounding box of the shape.
Point2D	getCtrlP1()           Returns the first control point.
Point2D	getCtrlP2()           Returns the second control point.
double	getCtrlX1()           Returns the X coordinate of the first control point in double precision.
double	getCtrlX2()           Returns the X coordinate of the second control point in double precision.
double	getCtrlY1()           Returns the Y coordinate of the first control point in double precision.
double	getCtrlY2()           Returns the Y coordinate of the second 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 ctrlx1, double ctrly1, double ctrlx2, double ctrly2, double x2, double y2)           Sets the location of the endpoints and controlpoints of this curve to the specified double coordinates.

 

Methods inherited from class java.awt.geom.CubicCurve2D
clone, contains, contains, contains, contains, getBounds, getFlatness, getFlatness, getFlatness, getFlatnessSq, getFlatnessSq, getFlatnessSq, getPathIterator, getPathIterator, intersects, intersects, setCurve, setCurve, setCurve, setCurve, solveCubic, solveCubic, subdivide, subdivide, subdivide

 

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

x1

public double x1

The X coordinate of the start point of the cubic curve segment.

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y1

public double y1

The Y coordinate of the start point of the cubic curve segment.

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ctrlx1

public double ctrlx1

The X coordinate of the first control point of the cubic curve segment.

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ctrly1

public double ctrly1

The Y coordinate of the first control point of the cubic curve segment.

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ctrlx2

public double ctrlx2

The X coordinate of the second control point of the cubic curve segment.

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ctrly2

public double ctrly2

The Y coordinate of the second control point of the cubic curve segment.

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x2

public double x2

The X coordinate of the end point of the cubic curve segment.

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y2

public double y2

The Y coordinate of the end point of the cubic curve segment.

Constructor Detail

CubicCurve2D.Double

public CubicCurve2D.Double()

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

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CubicCurve2D.Double

public CubicCurve2D.Double(double x1,
                           double y1,
                           double ctrlx1,
                           double ctrly1,
                           double ctrlx2,
                           double ctrly2,
                           double x2,
                           double y2)

Constructs and initializes a CubicCurve2D from the specified coordinates.

Parameters:

x1, y1 - the first specified coordinates for the start point of the resulting CubicCurve2D

ctrlx1, ctrly1 - the second specified coordinates for the first control point of the resulting CubicCurve2D

ctrlx2, ctrly2 - the third specified coordinates for the second control point of the resulting CubicCurve2D

x2, y2 - the fourth specified coordinates for the end point of the resulting CubicCurve2D

Method Detail

getX1

public double getX1()

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

Specified by:

getX1 in class CubicCurve2D

Returns:

the X coordinate of the first control point of the CubicCurve2D.

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getY1

public double getY1()

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

Specified by:

getY1 in class CubicCurve2D

Returns:

the Y coordinate of the start point of the CubicCurve2D.

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getP1

public Point2D getP1()

Returns the start point.

Specified by:

getP1 in class CubicCurve2D

Returns:

a Point2D that is the start point of the CubicCurve2D.

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getCtrlX1

public double getCtrlX1()

Returns the X coordinate of the first control point in double precision.

Specified by:

getCtrlX1 in class CubicCurve2D

Returns:

the X coordinate of the first control point of the CubicCurve2D.

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getCtrlY1

public double getCtrlY1()

Returns the Y coordinate of the first control point in double precision.

Specified by:

getCtrlY1 in class CubicCurve2D

Returns:

the Y coordinate of the first control point of the CubicCurve2D.

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getCtrlP1

public Point2D getCtrlP1()

Returns the first control point.

Specified by:

getCtrlP1 in class CubicCurve2D

Returns:

a Point2D that is the first control point of the CubicCurve2D.

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getCtrlX2

public double getCtrlX2()

Returns the X coordinate of the second control point in double precision.

Specified by:

getCtrlX2 in class CubicCurve2D

Returns:

the X coordinate of the second control point of the CubicCurve2D.

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getCtrlY2

public double getCtrlY2()

Returns the Y coordinate of the second control point in double precision.

Specified by:

getCtrlY2 in class CubicCurve2D

Returns:

the Y coordinate of the second control point of the CubicCurve2D.

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getCtrlP2

public Point2D getCtrlP2()

Returns the second control point.

Specified by:

getCtrlP2 in class CubicCurve2D

Returns:

a Point2D that is the second control point of the CubicCurve2D.

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getX2

public double getX2()

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

Specified by:

getX2 in class CubicCurve2D

Returns:

the X coordinate of the end point of the CubicCurve2D.

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getY2

public double getY2()

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

Specified by:

getY2 in class CubicCurve2D

Returns:

the Y coordinate of the end point of the CubicCurve2D.

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getP2

public Point2D getP2()

Returns the end point.

Specified by:

getP2 in class CubicCurve2D

Returns:

a Point2D that is the end point of the CubicCurve2D.

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setCurve

public void setCurve(double x1,
                     double y1,
                     double ctrlx1,
                     double ctrly1,
                     double ctrlx2,
                     double ctrly2,
                     double x2,
                     double y2)

Sets the location of the endpoints and controlpoints of this curve to the specified double coordinates.

Specified by:

setCurve in class CubicCurve2D

Parameters:

x1, y1 - the first specified coordinates used to set the start point of this CubicCurve2D

ctrlx1, ctrly1 - the second specified coordinates used to set the first control point of this CubicCurve2D

ctrlx2, ctrly2 - the third specified coordinates used to set the second control point of this CubicCurve2D

x2, y2 - the fourth specified coordinates used to set the end point of this CubicCurve2D

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getBounds2D

public Rectangle2D getBounds2D()

Returns the bounding box of the shape.

Returns:

a Rectangle2D that is the bounding box of the shape.

See Also:

Shape.getBounds()

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SUMMARY: NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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