java.awt.geom
Class QuadCurve2D.Double
- Enclosing Class:
- QuadCurve2D
- Implemented Interfaces:
- Cloneable, Shape
A two-dimensional curve that is parameterized with a quadratic
function and stores coordinate values in double-precision
floating-point format.
Nested Class Summary
Nested classes/interfaces inherited from class java.awt.geom.QuadCurve2D
Field Summary
double ctrlx - The x coordinate of the curve’s control point.
double ctrly - The y coordinate of the curve’s control point.
double x1 - The x coordinate of the curve’s start point.
double x2 - The x coordinate of the curve’s end point.
double y1 - The y coordinate of the curve’s start point.
double y2 - The y coordinate of the curve’s end point.
Constructor Summary
Double()- Constructs a new QuadCurve2D that stores its coordinate values
in double-precision floating-point format.
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.
Method Summary
Rectangle2D getBounds2D()- Determines the smallest rectangle that encloses the
curve’s start, end and 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.
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.
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
Methods inherited from class java.lang.Object
clone,
equals,
extends Object> getClass,
finalize,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait
Field Details
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.
Constructor Details
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.
- 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 Details
getX1
public double getX1()
Returns the x coordinate of the curve’s start
point.
- Overrides:
- getX1 in interface QuadCurve2D
getX2
public double getX2()
Returns the x coordinate of the curve’s end
point.
- Overrides:
- getX2 in interface QuadCurve2D
getY1
public double getY1()
Returns the y coordinate of the curve’s start
point.
- Overrides:
- getY1 in interface QuadCurve2D
getY2
public double getY2()
Returns the y coordinate of the curve’s end
point.
- Overrides:
- 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.
- Overrides:
- setCurve in interface QuadCurve2D
- 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.
QuadCurve2D.java -- represents a parameterized quadratic curve in 2-D space
Copyright (C) 2002, 2003, 2004 Free Software Foundation
This file is part of GNU Classpath.
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