prajna.geo

Class GeoEllipse

java.lang.Object

java.awt.Polygon

prajna.geo.GeoPolygon

prajna.geo.GeoEllipse

All Implemented Interfaces:

java.awt.Shape, java.io.Serializable, Locatable, GeoShape

public class GeoEllipse
extends GeoPolygon

Representation of an elliptical area on the earth's surface.

Author:

Edward Swing

See Also:

Serialized Form

Field Summary

Fields inherited from class java.awt.Polygon

bounds, npoints, xpoints, ypoints

Constructor Summary

Constructors

Constructor and Description
GeoEllipse(GeoCoord geoCenter, double angle, double longAxis, double shortAxis) Instantiates a new geographic ellipse.

Method Summary

Methods

Modifier and Type	Method and Description
double	getAngle() Gets the angle (azimuth) for this Ellipse.
GeoCoord	getCenter() Gets the center coordinate for this Ellipse.
double	getMinorRadius() Gets the minor radius (short axis) for this Ellipse.
double	getRadius() Get the radius of this ellipse.

Methods inherited from class prajna.geo.GeoPolygon

getCoordinates, getData, getGeoBounds, getGeoPoints, getRenderStyle, project, setData, setGeoPoints, setRenderStyle

Methods inherited from class java.awt.Polygon

addPoint, contains, contains, contains, contains, contains, contains, getBoundingBox, getBounds, getBounds2D, getPathIterator, getPathIterator, inside, intersects, intersects, invalidate, reset, translate

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.awt.Shape

contains, contains, contains, contains, getBounds, getBounds2D, getPathIterator, getPathIterator, intersects, intersects

Constructor Detail

GeoEllipse

public GeoEllipse(GeoCoord geoCenter,
          double angle,
          double longAxis,
          double shortAxis)

Instantiates a new geographic ellipse.

Parameters:

geoCenter - the center of the ellipse

angle - the angle that the long axis forms with true north, measured clockwise in degrees

longAxis - the long axis the long (major) axis of the ellipse, measured in meters

shortAxis - the short axis the short (minor) axis of the ellipse, measured in meters

Method Detail

getAngle

public double getAngle()

Gets the angle (azimuth) for this Ellipse. The angle returned is the angle that the major axis makes with true north, measured in a clockwise direction.

Returns:

the azimuth, measured in degrees from true north, for this ellipse

getCenter

public GeoCoord getCenter()

Gets the center coordinate for this Ellipse.

Specified by:

getCenter in interface Locatable

Specified by:

getCenter in interface GeoShape

Overrides:

getCenter in class GeoPolygon

Returns:

center the coordinate of the center of the ellipse

getMinorRadius

public double getMinorRadius()

Gets the minor radius (short axis) for this Ellipse.

Returns:

the length of the minor axis, measured in meters

getRadius

public double getRadius()

Get the radius of this ellipse.

Specified by:

getRadius in interface Locatable

Specified by:

getRadius in interface GeoShape

Overrides:

getRadius in class GeoPolygon

Returns:

the size of the major axis, measured in meters