java.awt.geom

Class CubicCurve2D.Float

java.lang.Object

java.awt.geom.CubicCurve2D

java.awt.geom.CubicCurve2D.Float

All Implemented Interfaces:

Shape, Cloneable

Enclosing class:

CubicCurve2D

public static class CubicCurve2D.Float
extends CubicCurve2D

A two-dimensional curve that is parameterized with a cubic function and stores coordinate values in single-precision floating-point format.

See Also:

CubicCurve2D.Float

Nested Class Summary

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

CubicCurve2D.Double, CubicCurve2D.Float

Field Summary

Fields

Modifier and Type	Field and Description
float	ctrlx1 The x coordinate of the curve’s first control point.
float	ctrlx2 The x coordinate of the curve’s second control point.
float	ctrly1 The y coordinate of the curve’s first control point.
float	ctrly2 The y coordinate of the curve’s second control point.
float	x1 The x coordinate of the curve’s start point.
float	x2 The x coordinate of the curve’s end point.
float	y1 The y coordinate of the curve’s start point.
float	y2 The y coordinate of the curve’s end point.

Constructor Summary

Constructors

Constructor and Description
CubicCurve2D.Float() Constructs a new CubicCurve2D that stores its coordinate values in single-precision floating-point format.
CubicCurve2D.Float(float x1, float y1, float cx1, float cy1, float cx2, float cy2, float x2, float y2) Constructs a new CubicCurve2D that stores its coordinate values in single-precision floating-point format, specifying the initial position of each point.

Method Summary

Methods

Modifier and Type	Method and Description
Rectangle2D	getBounds2D() Determines the smallest rectangle that encloses the curve’s start, end and control points.
Point2D	getCtrlP1() Returns the curve’s first control point.
Point2D	getCtrlP2() Returns the curve’s second control point.
double	getCtrlX1() Returns the x coordinate of the curve’s first control point.
double	getCtrlX2() Returns the s coordinate of the curve’s second control point.
double	getCtrlY1() Returns the y coordinate of the curve’s first control point.
double	getCtrlY2() Returns the y coordinate of the curve’s second control point.
Point2D	getP1() Returns the curve’s start point.
Point2D	getP2() Returns the curve’s end point.
double	getX1() Returns the x coordinate of the curve’s start point.
double	getX2() Returns the x coordinate of the curve’s end point.
double	getY1() Returns the y coordinate of the curve’s start point.
double	getY2() Returns the y coordinate of the curve’s end point.
void	setCurve(double x1, double y1, double cx1, double cy1, double cx2, double cy2, double x2, double y2) Changes the curve geometry, separately specifying each coordinate value as a double-precision floating-point number.
void	setCurve(float x1, float y1, float cx1, float cy1, float cx2, float cy2, float x2, float y2) Changes the curve geometry, separately specifying each coordinate value as a single-precision floating-point number.

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 float x1

The x coordinate of the curve’s start point.

y1

public float y1

The y coordinate of the curve’s start point.

ctrlx1

public float ctrlx1

The x coordinate of the curve’s first control point.

ctrly1

public float ctrly1

The y coordinate of the curve’s first control point.

ctrlx2

public float ctrlx2

The x coordinate of the curve’s second control point.

ctrly2

public float ctrly2

The y coordinate of the curve’s second control point.

x2

public float x2

The x coordinate of the curve’s end point.

y2

public float y2

The y coordinate of the curve’s end point.

Constructor Detail

CubicCurve2D.Float

public CubicCurve2D.Float()

Constructs a new CubicCurve2D that stores its coordinate values in single-precision floating-point format. All points are initially at position (0, 0).

CubicCurve2D.Float

public CubicCurve2D.Float(float x1,
                  float y1,
                  float cx1,
                  float cy1,
                  float cx2,
                  float cy2,
                  float x2,
                  float y2)

Constructs a new CubicCurve2D that stores its coordinate values in single-precision floating-point format, specifying the initial position of each point.

Parameters:

x1 - the x coordinate of the curve’s start point.

y1 - the y coordinate of the curve’s start point.

cx1 - the x coordinate of the curve’s first control point.

cy1 - the y coordinate of the curve’s first control point.

cx2 - the x coordinate of the curve’s second control point.

cy2 - the y coordinate of the curve’s second control point.

x2 - the x coordinate of the curve’s end point.

y2 - the y coordinate of the curve’s end point.

Method Detail

getX1

public double getX1()

Returns the x coordinate of the curve’s start point.

Specified by:

getX1 in class CubicCurve2D

getY1

public double getY1()

Returns the y coordinate of the curve’s start point.

Specified by:

getY1 in class CubicCurve2D

getP1

public Point2D getP1()

Returns the curve’s start point.

Specified by:

getP1 in class CubicCurve2D

getCtrlX1

public double getCtrlX1()

Returns the x coordinate of the curve’s first control point.

Specified by:

getCtrlX1 in class CubicCurve2D

getCtrlY1

public double getCtrlY1()

Returns the y coordinate of the curve’s first control point.

Specified by:

getCtrlY1 in class CubicCurve2D

getCtrlP1

public Point2D getCtrlP1()

Returns the curve’s first control point.

Specified by:

getCtrlP1 in class CubicCurve2D

getCtrlX2

public double getCtrlX2()

Returns the s coordinate of the curve’s second control point.

Specified by:

getCtrlX2 in class CubicCurve2D

getCtrlY2

public double getCtrlY2()

Returns the y coordinate of the curve’s second control point.

Specified by:

getCtrlY2 in class CubicCurve2D

getCtrlP2

public Point2D getCtrlP2()

Returns the curve’s second control point.

Specified by:

getCtrlP2 in class CubicCurve2D

getX2

public double getX2()

Returns the x coordinate of the curve’s end point.

Specified by:

getX2 in class CubicCurve2D

getY2

public double getY2()

Returns the y coordinate of the curve’s end point.

Specified by:

getY2 in class CubicCurve2D

getP2

public Point2D getP2()

Returns the curve’s end point.

Specified by:

getP2 in class CubicCurve2D

setCurve

public void setCurve(double x1,
            double y1,
            double cx1,
            double cy1,
            double cx2,
            double cy2,
            double x2,
            double y2)

Changes the curve geometry, separately specifying each coordinate value as a double-precision floating-point number.

Specified by:

setCurve in class CubicCurve2D

Parameters:

x1 - the x coordinate of the curve’s new start point.

y1 - the y coordinate of the curve’s new start point.

cx1 - the x coordinate of the curve’s new first control point.

cy1 - the y coordinate of the curve’s new first control point.

cx2 - the x coordinate of the curve’s new second control point.

cy2 - the y coordinate of the curve’s new second control point.

x2 - the x coordinate of the curve’s new end point.

y2 - the y coordinate of the curve’s new end point.

setCurve

public void setCurve(float x1,
            float y1,
            float cx1,
            float cy1,
            float cx2,
            float cy2,
            float x2,
            float y2)

Changes the curve geometry, separately specifying each coordinate value as a single-precision floating-point number.

Parameters:

x1 - the x coordinate of the curve’s new start point.

y1 - the y coordinate of the curve’s new start point.

cx1 - the x coordinate of the curve’s new first control point.

cy1 - the y coordinate of the curve’s new first control point.

cx2 - the x coordinate of the curve’s new second control point.

cy2 - the y coordinate of the curve’s new second control point.

x2 - the x coordinate of the curve’s new end point.

y2 - the y coordinate of the curve’s new end point.

getBounds2D

public Rectangle2D getBounds2D()

Determines the smallest rectangle that encloses the curve’s start, end and control points. As the illustration below shows, the invisible control points may cause the bounds to be much larger than the area that is actually covered by the curve.

Returns:

the shape's bounding box

See Also:

Shape.getBounds()