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Description

'''geodesy''' provides the core geospatial representations used in opensextant project which include points, ellipses, arcs, bounding boxes, etc. most of which support an elevation component.

Examples

// 1. create some points

// create point using Degrees, minutes, seconds
Geodetic2DPoint a = new Geodetic2DPoint( new Longitude(-71, 3, 49),
	new Latitude(42, 21, 29)); // Boston, MA

// create point using decimal degrees
Geodetic2DPoint b = new Geodetic2DPoint( new Longitude(new Angle(-74.0059, Angle.DEGREES)),
	new Latitude(new Angle(40.7127, Angle.DEGREES))); // New York, NY

// 2. calculate distance between two points
Geodetic2DArc arc = new Geodetic2DArc(b, a);
double dist = arc.getDistanceInMeters() / 1000.0;
System.out.printf("Distance btwn Boston -> New York is %,.0f km (%.0f miles) azimuth=%.1f degrees%n",
	dist, dist * 0.621371, arc.getForwardAzimuth().inDegrees());
// outputs: Distance btwn Boston -> New York is 306 km (190 miles) azimuth=52.4 degrees

// 3. create bounding box
Geodetic2DBounds bbox = new Geodetic2DBounds(b, a);
dist = bbox.getDiagonal() / 1000.0;
System.out.printf("Distance as diagonal length in bounding box is %,.0f km (%,.0f miles)%n",
	dist, dist *0.621371 );
// outputs: Distance as diagonal length in bounding box is 306 km (190 miles)

assert(bbox.contains(a));
assert(bbox.contains(b));

System.out.println("Center btwn Boston and New York is at " + bbox.getCenter()); // East Hampton, CT
// outputs: Center btwn Boston and New York is at (72°32' 5" W, 41°32' 7" N)