org.apache.batik.ext.awt.geom
Class Quadradic
java.lang.Object
org.apache.batik.ext.awt.geom.AbstractSegment
org.apache.batik.ext.awt.geom.Quadradic
- All Implemented Interfaces:
- Cloneable, Segment
public class Quadradic
- extends AbstractSegment
A class representing a quadratic path segment.
Method Summary |
Object |
clone()
|
Point2D.Double |
eval(double t)
|
Point2D.Double |
evalDt(double t)
|
protected int |
findRoots(double y,
double[] roots)
|
Rectangle2D |
getBounds2D()
|
double |
getLength()
|
double |
getLength(double maxErr)
|
Segment |
getSegment(double t0,
double t1)
|
double |
maxX()
|
double |
maxY()
|
double |
minX()
|
double |
minY()
|
Segment |
reverse()
|
void |
subdivide(double t,
Quadradic q0,
Quadradic q1)
Subdivides this Quadradic curve into two curves at given t. |
void |
subdivide(double t,
Segment s0,
Segment s1)
Subdivides this Quadradic curve into two curves at t. |
void |
subdivide(Quadradic q0,
Quadradic q1)
Subdivides this Quadradic curve into two curves at t = 0.5. |
void |
subdivide(Segment s0,
Segment s1)
Subdivides this Quadradic curve into two curves at t = 0.5. |
protected double |
subLength(double leftLegLen,
double rightLegLen,
double maxErr)
|
String |
toString()
|
p1
public Point2D.Double p1
p2
public Point2D.Double p2
p3
public Point2D.Double p3
Quadradic
public Quadradic()
Quadradic
public Quadradic(double x1,
double y1,
double x2,
double y2,
double x3,
double y3)
Quadradic
public Quadradic(Point2D.Double p1,
Point2D.Double p2,
Point2D.Double p3)
clone
public Object clone()
- Overrides:
clone
in class Object
reverse
public Segment reverse()
minX
public double minX()
maxX
public double maxX()
minY
public double minY()
maxY
public double maxY()
getBounds2D
public Rectangle2D getBounds2D()
findRoots
protected int findRoots(double y,
double[] roots)
- Specified by:
findRoots
in class AbstractSegment
evalDt
public Point2D.Double evalDt(double t)
eval
public Point2D.Double eval(double t)
getSegment
public Segment getSegment(double t0,
double t1)
subdivide
public void subdivide(Quadradic q0,
Quadradic q1)
- Subdivides this Quadradic curve into two curves at t = 0.5.
can be done with getSegment but this is more efficent.
- Parameters:
q0
- if non-null contains portion of curve from 0->.5q1
- if non-null contains portion of curve from .5->1
subdivide
public void subdivide(double t,
Quadradic q0,
Quadradic q1)
- Subdivides this Quadradic curve into two curves at given t.
- Parameters:
q0
- if non-null contains portion of curve from 0->t.q1
- if non-null contains portion of curve from t->1.
subdivide
public void subdivide(Segment s0,
Segment s1)
- Subdivides this Quadradic curve into two curves at t = 0.5.
can be done with getSegment but this is more efficent.
- Parameters:
s0
- if non-null contains portion of curve from 0->.5s1
- if non-null contains portion of curve from .5->1
subdivide
public void subdivide(double t,
Segment s0,
Segment s1)
- Subdivides this Quadradic curve into two curves at t.
can be done with getSegment but this is more efficent.
- Parameters:
s0
- if non-null contains portion of curve from 0->.5s1
- if non-null contains portion of curve from .5->1
subLength
protected double subLength(double leftLegLen,
double rightLegLen,
double maxErr)
getLength
public double getLength()
getLength
public double getLength(double maxErr)
toString
public String toString()
- Overrides:
toString
in class Object
Copyright © 2008 Apache Software Foundation. All Rights Reserved.