java.lang.Object
- java.awt.geom.Point2D
- - ucar.nc2.dt.ugrid.geom.LatLonPoint2D

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

LatLonPoint2D.Double, LatLonPoint2D.Float
```
public abstract class LatLonPoint2D
extends Point2D
implements Serializable
```
See Also:

Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`LatLonPoint2D.Double`	Double precision version of LatLonPoint2D.
`static class`	`LatLonPoint2D.Float`	The Float version of a LatLonPoint2D, where coordinates are held to float precision.

Field Summary

Fields
Modifier and Type Field Description

static double EQUIVALENT_TOLERANCE

Constructor Summary

Constructors
Modifier Constructor Description

protected LatLonPoint2D()

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`static LatLonPoint2D`	`calculateGeographicCenter(LatLonPoint2D[] points)`
`double`	`distance(double px, double py)`
`double`	`distance(Point2D pt)`
`double`	`distanceSq(double px, double py)`
`double`	`distanceSq(Point2D pt)`
`boolean`	`equals(Object obj)`	Determines whether two LatLonPoints are equal.
`static LatLonPoint2D`	`getDouble(Point2D pt2D)`	Factory method that will create a LatLonPoint2D.Double from a Point2D object.
`static LatLonPoint2D`	`getFloat(Point2D pt2D)`	Factory method that will create a LatLonPoint2D.Float from a Point2D object.
`abstract double`	`getLatitude()`
`abstract double`	`getLongitude()`
`abstract double`	`getRadLat()`
`abstract double`	`getRadLon()`
`static boolean`	`isInvalidLatitude(double lat)`	Check if latitude is bogus.
`static boolean`	`isInvalidLongitude(double lon)`	Check if longitude is bogus.
`static double`	`normLat(double lat)`	Normalize the latitude to lie between +/-90
`static double`	`normLon(double lon)`	Normalize the longitude to lie between +/-180
`static double`	`normLon(double lon, double center)`	put longitude into the range [center +/- 180] deg
`static double`	`normLon360(double lon)`	put longitude into the range [0, 360] deg
`static double`	`range180(double lon)`	put longitude into the range [-180, 180] deg
`abstract void`	`setLatitude(double lat)`	Set decimal degree latitude.
`abstract void`	`setLatLon(double lat, double lon)`	Set the latitude, longitude for this point.
`abstract void`	`setLatLon(double lat, double lon, boolean isRadians)`	Set the latitude, longitude for this point, with the option of noting whether the values are in degrees or radians.
`void`	`setLatLon(LatLonPoint2D llp)`	Set location values from another lat/lon point.
`abstract void`	`setLongitude(double lon)`	Set decimal degree longitude.

Methods inherited from class java.awt.geom.Point2D
clone, distance, distanceSq, getX, getY, hashCode, setLocation, setLocation

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

- Field Detail
  - EQUIVALENT_TOLERANCE
```
public static final double EQUIVALENT_TOLERANCE
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - LatLonPoint2D
```
protected LatLonPoint2D()
```
- Method Detail
  - getFloat
```
public static LatLonPoint2D getFloat(Point2D pt2D)
```
    Factory method that will create a LatLonPoint2D.Float from a Point2D object. If pt2D is already a LatLonPoint2D.Float object, it is simply returned.
    
    Parameters:
    
    pt2D -
    
    Returns:
    
    a LatLonPoint2D.Float object.
  - getDouble
```
public static LatLonPoint2D getDouble(Point2D pt2D)
```
    Factory method that will create a LatLonPoint2D.Double from a Point2D object. If pt2D is already a LatLonPoint2D.Double object, it is simply returned.
    
    Parameters:
    
    pt2D -
    
    Returns:
    
    a LatLonPoint2D.Double object.
  - setLatLon
```
public abstract void setLatLon(double lat,
                               double lon)
```
    Set the latitude, longitude for this point.
    
    Parameters:
    
    lat - decimal degree latitude
    
    lon - decimal degree longitude.
  - setLatLon
```
public abstract void setLatLon(double lat,
                               double lon,
                               boolean isRadians)
```
    Set the latitude, longitude for this point, with the option of noting whether the values are in degrees or radians.
    
    Parameters:
    
    lat - latitude
    
    lon - longitude.
    
    isRadians - true of values are radians.
  - getLongitude
```
public abstract double getLongitude()
```
    Returns:
    
    decimal degree longitude as a float.
  - getLatitude
```
public abstract double getLatitude()
```
    Returns:
    
    decimal degree latitude as a float.
  - getRadLon
```
public abstract double getRadLon()
```
    Returns:
    
    radian longitude value.
  - getRadLat
```
public abstract double getRadLat()
```
    Returns:
    
    radian latitude value.
  - setLatitude
```
public abstract void setLatitude(double lat)
```
    Set decimal degree latitude.
  - setLongitude
```
public abstract void setLongitude(double lon)
```
    Set decimal degree longitude.
  - setLatLon
```
public void setLatLon(LatLonPoint2D llp)
```
    Set location values from another lat/lon point.
    
    Parameters:
    
    llp -
  - distance
```
public double distance(double px,
                       double py)
```
    Overrides:
    
    distance in class Point2D
  - distance
```
public double distance(Point2D pt)
```
    Overrides:
    
    distance in class Point2D
  - distanceSq
```
public double distanceSq(double px,
                         double py)
```
    Overrides:
    
    distanceSq in class Point2D
  - distanceSq
```
public double distanceSq(Point2D pt)
```
    Overrides:
    
    distanceSq in class Point2D
  - range180
```
public static double range180(double lon)
```
    put longitude into the range [-180, 180] deg
    
    Parameters:
    
    lon - lon to normalize
    
    Returns:
    
    longitude in range [-180, 180] deg
  - normLon360
```
public static double normLon360(double lon)
```
    put longitude into the range [0, 360] deg
    
    Parameters:
    
    lon - lon to normalize
    
    Returns:
    
    longitude into the range [0, 360] deg
  - normLon
```
public static double normLon(double lon,
                             double center)
```
    put longitude into the range [center +/- 180] deg
    
    Parameters:
    
    lon - lon to normalize
    
    center - center point
    
    Returns:
    
    longitude into the range [center +/- 180] deg
  - normLon
```
public static double normLon(double lon)
```
    Normalize the longitude to lie between +/-180
    
    Parameters:
    
    lon - east latitude in degrees
    
    Returns:
    
    normalized lon
  - normLat
```
public static double normLat(double lat)
```
    Normalize the latitude to lie between +/-90
    
    Parameters:
    
    lat - north latitude in degrees
    
    Returns:
    
    normalized lat
  - isInvalidLatitude
```
public static boolean isInvalidLatitude(double lat)
```
    Check if latitude is bogus. Latitude is invalid if lat > 90° or if lat < −90°.
    
    Parameters:
    
    lat - latitude in decimal degrees
    
    Returns:
    
    boolean true if latitude is invalid
  - isInvalidLongitude
```
public static boolean isInvalidLongitude(double lon)
```
    Check if longitude is bogus. Longitude is invalid if lon > 180° or if lon < −180°.
    
    Parameters:
    
    lon - longitude in decimal degrees
    
    Returns:
    
    boolean true if longitude is invalid
  - calculateGeographicCenter
```
public static LatLonPoint2D calculateGeographicCenter(LatLonPoint2D[] points)
```
  - equals
```
public boolean equals(Object obj)
```
    Determines whether two LatLonPoints are equal.
    
    Overrides:
    
    equals in class Point2D
    
    Parameters:
    
    obj - Object
    
    Returns:
    
    Whether the two points are equal up to a tolerance of 10 ^-9 degrees in latitude and longitude.

Class LatLonPoint2D

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.awt.geom.Point2D

Methods inherited from class java.lang.Object

Field Detail

EQUIVALENT_TOLERANCE

Constructor Detail

LatLonPoint2D

Method Detail

getFloat

getDouble

setLatLon

setLatLon

getLongitude

getLatitude

getRadLon

getRadLat

setLatitude

setLongitude

setLatLon

distance

distance

distanceSq

distanceSq

range180

normLon360

normLon

normLon

normLat

isInvalidLatitude

isInvalidLongitude

calculateGeographicCenter

equals