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Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class CubicCurve2D.Double - JDK 5 Documentation v1.2.2, 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
Enclosing class:
CubicCurve2D
public static class CubicCurve2D.Double
extends CubicCurve2D

A cubic parametric curve segment specified with double coordinates.

Inner classes 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, 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.

y1

public double y1
The Y coordinate of the start point of the cubic curve segment.

ctrlx1

public double ctrlx1
The X coordinate of the first control point of the cubic curve segment.

ctrly1

public double ctrly1
The Y coordinate of the first control point of the cubic curve segment.

ctrlx2

public double ctrlx2
The X coordinate of the second control point of the cubic curve segment.

ctrly2

public double ctrly2
The Y coordinate of the second control point of the cubic curve segment.

x2

public double x2
The X coordinate of the end point of the cubic curve segment.

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).

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.
Overrides:
getX1 in class CubicCurve2D
Returns:
the X coordinate of the first control point of the CubicCurve2D.

getY1

public double getY1()
Returns the Y coordinate of the start point in double precision.
Overrides:
getY1 in class CubicCurve2D
Returns:
the Y coordinate of the start point of the CubicCurve2D.

getP1

public Point2D getP1()
Returns the start point.
Overrides:
getP1 in class CubicCurve2D
Returns:
a Point2D that is the start point of the CubicCurve2D.

getCtrlX1

public double getCtrlX1()
Returns the X coordinate of the first control point in double precision.
Overrides:
getCtrlX1 in class CubicCurve2D
Returns:
the X coordinate of the first control point of the CubicCurve2D.

getCtrlY1

public double getCtrlY1()
Returns the Y coordinate of the first control point in double precision.
Overrides:
getCtrlY1 in class CubicCurve2D
Returns:
the Y coordinate of the first control point of the CubicCurve2D.

getCtrlP1

public Point2D getCtrlP1()
Returns the first control point.
Overrides:
getCtrlP1 in class CubicCurve2D
Returns:
a Point2D that is the first control point of the CubicCurve2D.

getCtrlX2

public double getCtrlX2()
Returns the X coordinate of the second control point in double precision.
Overrides:
getCtrlX2 in class CubicCurve2D
Returns:
the X coordinate of the second control point of the CubicCurve2D.

getCtrlY2

public double getCtrlY2()
Returns the Y coordinate of the second control point in double precision.
Overrides:
getCtrlY2 in class CubicCurve2D
Returns:
the Y coordinate of the second control point of the CubicCurve2D.

getCtrlP2

public Point2D getCtrlP2()
Returns the second control point.
Overrides:
getCtrlP2 in class CubicCurve2D
Returns:
a Point2D that is the second control point of the CubicCurve2D.

getX2

public double getX2()
Returns the X coordinate of the end point in double precision.
Overrides:
getX2 in class CubicCurve2D
Returns:
the X coordinate of the end point of the CubicCurve2D.

getY2

public double getY2()
Returns the Y coordinate of the end point in double precision.
Overrides:
getY2 in class CubicCurve2D
Returns:
the Y coordinate of the end point of the CubicCurve2D.

getP2

public Point2D getP2()
Returns the end point.
Overrides:
getP2 in class CubicCurve2D
Returns:
a Point2D that is the end point of the CubicCurve2D.

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.
Overrides:
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

getBounds2D

public Rectangle2D getBounds2D()
Returns the bounding box of the shape.
Returns:
a Rectangle2D that is the bounding box of the shape.
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