java.awt.geom
Class QuadCurve2D.Double
- QuadCurve2D
- Cloneable, Shape
A two-dimensional curve that is parameterized with a quadratic
function and stores coordinate values in double-precision
floating-point format.
double | ctrlx - The x coordinate of the curve’s control point.
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double | ctrly - The y coordinate of the curve’s control point.
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double | x1 - The x coordinate of the curve’s start point.
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double | x2 - The x coordinate of the curve’s end point.
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double | y1 - The y coordinate of the curve’s start point.
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double | y2 - The y coordinate of the curve’s end point.
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Double() - Constructs a new QuadCurve2D that stores its coordinate values
in double-precision floating-point format.
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Double(double x1, double y1, double cx, double cy, double x2, double y2) - Constructs a new QuadCurve2D that stores its coordinate values
in double-precision floating-point format, specifying the
initial position of each point.
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Rectangle2D | getBounds2D() - Determines the smallest rectangle that encloses the
curve’s start, end and control point.
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Point2D | getCtrlPt() - Returns the curve’s control point.
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double | getCtrlX() - Returns the x coordinate of the curve’s control
point.
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double | getCtrlY() - Returns the y coordinate of the curve’s control
point.
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Point2D | getP1() - Returns the curve’s start point.
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Point2D | getP2() - Returns the curve’s end point.
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double | getX1() - Returns the x coordinate of the curve’s start
point.
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double | getX2() - Returns the x coordinate of the curve’s end
point.
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double | getY1() - Returns the y coordinate of the curve’s start
point.
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double | getY2() - Returns the y coordinate of the curve’s end
point.
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void | setCurve(double x1, double y1, double cx, double cy, double x2, double y2) - Changes the geometry of the curve.
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clone , contains , contains , contains , contains , getBounds , getCtrlPt , getCtrlX , getCtrlY , getFlatness , getFlatness , getFlatness , getFlatnessSq , getFlatnessSq , getFlatnessSq , getP1 , getP2 , getPathIterator , getPathIterator , getX1 , getX2 , getY1 , getY2 , intersects , intersects , setCurve , setCurve , setCurve , setCurve , setCurve , solveQuadratic , solveQuadratic , subdivide , subdivide , subdivide |
clone , equals , extends Object> getClass , finalize , hashCode , notify , notifyAll , toString , wait , wait , wait |
ctrlx
public double ctrlx
The x coordinate of the curve’s control point.
ctrly
public double ctrly
The y coordinate of the curve’s control point.
x1
public double x1
The x coordinate of the curve’s start point.
x2
public double x2
The x coordinate of the curve’s end point.
y1
public double y1
The y coordinate of the curve’s start point.
y2
public double y2
The y coordinate of the curve’s end point.
Double
public Double()
Constructs a new QuadCurve2D that stores its coordinate values
in double-precision floating-point format. All points are
initially at position (0, 0).
Double
public Double(double x1,
double y1,
double cx,
double cy,
double x2,
double y2)
Constructs a new QuadCurve2D that stores its coordinate values
in double-precision floating-point format, specifying the
initial position of each point.
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.
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.
- getBounds2D in interface Shape
getX1
public double getX1()
Returns the x coordinate of the curve’s start
point.
- getX1 in interface QuadCurve2D
getX2
public double getX2()
Returns the x coordinate of the curve’s end
point.
- getX2 in interface QuadCurve2D
getY1
public double getY1()
Returns the y coordinate of the curve’s start
point.
- getY1 in interface QuadCurve2D
getY2
public double getY2()
Returns the y coordinate of the curve’s end
point.
- getY2 in interface QuadCurve2D
setCurve
public void setCurve(double x1,
double y1,
double cx,
double cy,
double x2,
double y2)
Changes the geometry of the curve.
- setCurve in interface QuadCurve2D
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.
QuadCurve2D.java -- represents a parameterized quadratic curve in 2-D space
Copyright (C) 2002, 2003, 2004 Free Software Foundation
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