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## com.vividsolutions.jts.algorithm
Class HCoordinate

    java.lang.Object
      com.vividsolutions.jts.algorithm.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.

Version:
  1.7
Author:
  David Skea

Field Summary
`double` | `w`
`double` | `x`
`double` | `y`

Constructor Summary
`HCoordinate()`
`HCoordinate(Coordinate p)`
`HCoordinate(Coordinate p1, Coordinate p2)` Constructs a homogeneous coordinate which is the intersection of the lines define by the homogenous coordinates represented by two `Coordinate`s.
`HCoordinate(Coordinate p1, Coordinate p2, Coordinate q1, Coordinate q2)`
`HCoordinate(double _x, double _y)`
`HCoordinate(double _x, double _y, double _w)`
`HCoordinate(HCoordinate p1, HCoordinate p2)`

Method Summary
`Coordinate` | `getCoordinate()`
`double` | `getX()`
`double` | `getY()`
`static Coordinate` | `intersection(Coordinate p1, Coordinate p2, Coordinate q1, Coordinate q2)` Computes the (approximate) intersection point between two line segments using homogeneous coordinates.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### x

    public double x

### y

    public double y

### w

    public double w

Constructor Detail

### 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)

### HCoordinate

    public HCoordinate(Coordinate p1,
                       Coordinate p2)

  Constructs a homogeneous coordinate which is the intersection of the lines define by the homogenous coordinates represented by two `Coordinate`s.

Parameters:
  `p1` -
  `p2` -

### HCoordinate

    public HCoordinate(Coordinate p1,
                       Coordinate p2,
                       Coordinate q1,
                       Coordinate q2)

Method Detail

### 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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