org.geotools.geometry.iso.util.algorithm2D
Class HCoordinate
java.lang.Object
org.geotools.geometry.iso.util.algorithm2D.HCoordinate
public class HCoordinate
- extends java.lang.Object
Represents a homogeneous coordinate in a 2-D coordinate space. In JTS
HCoordinate
s are used as a clean way of computing intersections
between line segments.
Field Summary |
double |
w
|
double |
x
|
double |
y
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
x
public double x
y
public double y
w
public double w
HCoordinate
public HCoordinate()
HCoordinate
public HCoordinate(double _x,
double _y,
double _w)
HCoordinate
public HCoordinate(double _x,
double _y)
HCoordinate
public HCoordinate(Coordinate p)
HCoordinate
public HCoordinate(HCoordinate p1,
HCoordinate p2)
intersection
public static Coordinate intersection(Coordinate p1,
Coordinate p2,
Coordinate q1,
Coordinate q2)
throws NotRepresentableException
- Computes the (approximate) intersection point between two line segments
using homogeneous coordinates.
Note that this algorithm is not numerically stable; i.e. it can produce
intersection points which lie outside the envelope of the line segments
themselves. In order to increase the precision of the calculation input
points should be normalized before passing them to this routine.
- Throws:
NotRepresentableException
getX
public double getX()
throws NotRepresentableException
- Throws:
NotRepresentableException
getY
public double getY()
throws NotRepresentableException
- Throws:
NotRepresentableException
getCoordinate
public Coordinate getCoordinate()
throws NotRepresentableException
- Throws:
NotRepresentableException
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