CosineDistance (SNAP Engine API)

java.lang.Object
- org.esa.snap.core.util.math.CosineDistance

All Implemented Interfaces:

DistanceMeasure
```
public final class CosineDistance
extends Object
implements DistanceMeasure
```
This class uses the negative cosine of the spherical distance as a distance measure between two (lon, lat) points.
This distance measure is computationally much less expensive than the spherical distance, because it is not necessary to evaluate the inverse of the cosine.

Constructor Summary

Constructors
Constructor Description

CosineDistance(double lon, double lat)
Creates a new instance of this class.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`distance(double lon, double lat)`	Returns the distance of a given (lon, lat) point to the reference (lon, lat) point.

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

- Constructor Detail
  - CosineDistance
```
public CosineDistance(double lon,
                      double lat)
```
    Creates a new instance of this class.
    
    Parameters:
    
    lon - The reference longitude of this distance calculator.
    
    lat - The reference latitude of this distance calculator.
- Method Detail
  - distance
```
public double distance(double lon,
                       double lat)
```
    Returns the distance of a given (lon, lat) point to the reference (lon, lat) point.
    
    Specified by:
    
    distance in interface DistanceMeasure
    
    Parameters:
    
    lon - The longitude.
    
    lat - The latitude.
    
    Returns:
    
    the distance of the given (lon, lat) point to the reference (lon, lat) point.