Package org.locationtech.jts.algorithm

Class Area

java.lang.Object

org.locationtech.jts.algorithm.Area

public class Area
extends java.lang.Object

Functions for computing area.

Author:

Martin Davis

Constructor Summary

Constructors

Constructor	Description
Area()

Method Summary

Modifier and Type	Method	Description
static double	ofRing(Coordinate[] ring)	Computes the area for a ring.
static double	ofRing(CoordinateSequence ring)	Computes the area for a ring.
static double	ofRingSigned(Coordinate[] ring)	Computes the signed area for a ring.
static double	ofRingSigned(CoordinateSequence ring)	Computes the signed area for a ring.

Methods inherited from class java.lang.Object

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

Constructor Detail

Area

public Area()

Method Detail

ofRing

public static double ofRing(Coordinate[] ring)

Computes the area for a ring.

Parameters:

ring - the coordinates forming the ring

Returns:

the area of the ring

ofRing

public static double ofRing(CoordinateSequence ring)

Computes the area for a ring.

Parameters:

ring - the coordinates forming the ring

Returns:

the area of the ring

ofRingSigned

public static double ofRingSigned(Coordinate[] ring)

Computes the signed area for a ring. The signed area is positive if the ring is oriented CW, negative if the ring is oriented CCW, and zero if the ring is degenerate or flat.

Parameters:

ring - the coordinates forming the ring

Returns:

the signed area of the ring

ofRingSigned

public static double ofRingSigned(CoordinateSequence ring)

Computes the signed area for a ring. The signed area is:

• positive if the ring is oriented CW
• negative if the ring is oriented CCW
• zero if the ring is degenerate or flat

Parameters:

ring - the coordinates forming the ring

Returns:

the signed area of the ring