/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* JBoss, Home of Professional Open Source
* Copyright 2011 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
package org.hibernate.search.spatial.impl;
/**
* Geometric constants to use in SpatialHelper calculation
*
* @author Nicolas Helleringer <nicolas.helleringer@novacodex.net>
* @author Mathieu Perez <mathieu.perez@novacodex.net>
* @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 );
}