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java.lang.Objectcom.vividsolutions.jts.geomgraph.Quadrant
Utility functions for working with quadrants, which are numbered as follows:
1 | 0 --+-- 2 | 3
Constructor Summary | |
Quadrant()
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Method Summary | |
static int |
commonHalfPlane(int quad1,
int quad2)
Returns the right-hand quadrant of the halfplane defined by the two quadrants, or -1 if the quadrants are opposite, or the quadrant if they are identical. |
static boolean |
isInHalfPlane(int quad,
int halfPlane)
Returns whether the given quadrant lies within the given halfplane (specified by its right-hand quadrant). |
static boolean |
isNorthern(int quad)
Returns true if the given quadrant is 0 or 1. |
static boolean |
isOpposite(int quad1,
int quad2)
Returns true if the quadrants are 1 and 3, or 2 and 4 |
static int |
quadrant(Coordinate p0,
Coordinate p1)
Returns the quadrant of a directed line segment from p0 to p1. |
static int |
quadrant(double dx,
double dy)
Returns the quadrant of a directed line segment (specified as x and y displacements, which cannot both be 0). |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public Quadrant()
Method Detail |
public static int quadrant(double dx, double dy)
public static int quadrant(Coordinate p0, Coordinate p1)
public static boolean isOpposite(int quad1, int quad2)
public static int commonHalfPlane(int quad1, int quad2)
public static boolean isInHalfPlane(int quad, int halfPlane)
public static boolean isNorthern(int quad)
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