/*
* Hibernate Search, full-text search for your domain model
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.search.spatial.impl;
/**
* Geometric constants to use in SpatialHelper calculation
*
* @author Nicolas Helleringer
* @author Mathieu Perez
* @see SpatialHelper
*/
public interface GeometricConstants {
double TO_RADIANS_RATIO = Math.PI / 180.0;
double TO_DEGREES_RATIO = 180.0 / Math.PI;
int WHOLE_CIRCLE_DEGREE_RANGE = 360;
int LONGITUDE_DEGREE_RANGE = WHOLE_CIRCLE_DEGREE_RANGE;
int LONGITUDE_DEGREE_MIN = -LONGITUDE_DEGREE_RANGE / 2;
int LONGITUDE_DEGREE_MAX = LONGITUDE_DEGREE_RANGE / 2;
int LATITUDE_DEGREE_RANGE = WHOLE_CIRCLE_DEGREE_RANGE / 2;
int LATITUDE_DEGREE_MIN = -LATITUDE_DEGREE_RANGE / 2;
int LATITUDE_DEGREE_MAX = LATITUDE_DEGREE_RANGE / 2;
int HEADING_NORTH = 0;
int HEADING_SOUTH = 180;
int HEADING_EAST = 90;
int HEADING_WEST = 270;
double EARTH_MEAN_RADIUS_KM = 6371.0;
double EARTH_EQUATOR_CIRCUMFERENCE_KM = 40075.017;
double PROJECTED_LATITUDE_RANGE = Math.PI;
double PROJECTED_LONGITUDE_RANGE = 2 * Math.PI;
Point NORTH_POLE = Point.fromDegrees( LATITUDE_DEGREE_MAX, 0 );
Point SOUTH_POLE = Point.fromDegrees( LATITUDE_DEGREE_MIN, 0 );
}