org.opentripplanner.common.geometry

Class DirectionUtils

java.lang.Object

org.opentripplanner.common.geometry.DirectionUtils

public class DirectionUtils
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static DirectionUtils	instance

Method Summary

Modifier and Type	Method and Description
static double	getAzimuth(com.vividsolutions.jts.geom.Coordinate a, com.vividsolutions.jts.geom.Coordinate b) Returns the approximate azimuth from coordinate A to B in decimal degrees clockwise from North, in the range (-180° to +180°).
static double	getFirstAngle(com.vividsolutions.jts.geom.Geometry geometry) Computes the angle of the first segment of a LineString or MultiLineString in radians clockwise from North in the range (-PI, PI).
static double	getLastAngle(com.vividsolutions.jts.geom.Geometry geometry) Computes the angle of the last segment of a LineString or MultiLineString in radians clockwise from North in the range (-PI, PI).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

instance

public static DirectionUtils instance

Method Detail

getAzimuth

public static double getAzimuth(com.vividsolutions.jts.geom.Coordinate a,
                                com.vividsolutions.jts.geom.Coordinate b)

Returns the approximate azimuth from coordinate A to B in decimal degrees clockwise from North, in the range (-180° to +180°). The computation is exact for small delta between A and B.

getLastAngle

public static double getLastAngle(com.vividsolutions.jts.geom.Geometry geometry)

Computes the angle of the last segment of a LineString or MultiLineString in radians clockwise from North in the range (-PI, PI).

Parameters:

geometry - a LineString or a MultiLineString

getFirstAngle

public static double getFirstAngle(com.vividsolutions.jts.geom.Geometry geometry)

Computes the angle of the first segment of a LineString or MultiLineString in radians clockwise from North in the range (-PI, PI).

Parameters:

geometry - a LineString or a MultiLineString