java.awt.geom

Class QuadCurve2D.Float

public static class QuadCurve2D.Float extends QuadCurve2D

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

See Also:

Field Summary
float	ctrlx The x coordinate of the curve’s control point.
float	ctrly The y coordinate of the curve’s 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
	Float() Constructs a new QuadCurve2D that stores its coordinate values in single-precision floating-point format.
	Float(float x1, float y1, float cx, float cy, float x2, float y2) Constructs a new QuadCurve2D that stores its coordinate values in single-precision floating-point format, specifying the initial position of each point.

Method Summary
Rectangle2D	getBounds2D() Determines the smallest rectangle that encloses the curve’s start, end and control point.
Point2D	getCtrlPt() Returns the curve’s control point.
double	getCtrlX() Returns the x coordinate of the curve’s control point.
double	getCtrlY() Returns the y coordinate of the curve’s 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 cx, double cy, double x2, double y2) Changes the geometry of the curve, specifying coordinate values as double-precision floating-point numbers.
void	setCurve(float x1, float y1, float cx, float cy, float x2, float y2) Changes the geometry of the curve, specifying coordinate values as single-precision floating-point numbers.

Field Detail

ctrlx

public float ctrlx

The x coordinate of the curve’s control point.

ctrly

public float ctrly

The y coordinate of the curve’s control point.

x1

public float x1

The x coordinate of the curve’s start point.

x2

public float x2

The x coordinate of the curve’s end point.

y1

public float y1

The y coordinate of the curve’s start point.

y2

public float y2

The y coordinate of the curve’s end point.

Constructor Detail

Float

public Float()

Constructs a new QuadCurve2D that stores its coordinate values in single-precision floating-point format. All points are initially at position (0, 0).

Float

public Float(float x1, float y1, float cx, float cy, float x2, float y2)

Constructs a new QuadCurve2D 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. cx the x coordinate of the curve’s control point. cy the y coordinate of the curve’s control point. x2 the x coordinate of the curve’s end point. y2 the y coordinate of the curve’s end point.

Method Detail

getBounds2D

public Rectangle2D getBounds2D()

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

An illustration of the bounds of a QuadCurve2D

getCtrlPt

public Point2D getCtrlPt()

Returns the curve’s control point.

getCtrlX

public double getCtrlX()

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

getCtrlY

public double getCtrlY()

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

getP1

public Point2D getP1()

Returns the curve’s start point.

getP2

public Point2D getP2()

Returns the curve’s end point.

getX1

public double getX1()

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

getX2

public double getX2()

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

getY1

public double getY1()

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

getY2

public double getY2()

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

setCurve

public void setCurve(double x1, double y1, double cx, double cy, double x2, double y2)

Changes the geometry of the curve, specifying coordinate values as double-precision floating-point numbers.

Parameters: x1 the x coordinate of the curve’s new start point. y1 the y coordinate of the curve’s new start point. cx the x coordinate of the curve’s new control point. cy the y coordinate of the curve’s new 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 cx, float cy, float x2, float y2)

Changes the geometry of the curve, specifying coordinate values as single-precision floating-point numbers.