SexagesimalAngle.java
/* Copyright 2002-2024 Thales Alenia Space
* Licensed to CS GROUP (CS) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* CS licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.orekit.bodies;
import org.hipparchus.util.FastMath;
/** Container for sexagesimal angle.
* <p>Instance of this class are guaranteed to be immutable.</p>
* @see GeodeticPoint
* @author Luc Maisonobe
* @since 13.0
*/
public class SexagesimalAngle {
/** Sexagesimal base. */
private static final double SIXTY = 60.0;
/** Sign. */
private final int sign;
/** Degree part of the angle. */
private final int degree;
/** Arc-minute part of the angle. */
private final int arcMinute;
/** Arc-second part of the angle. */
private final double arcSecond;
/** Simple constructor.
* @param sign sign
* @param degree degree part of the angle
* @param arcMinute arc-minute part of the angle
* @param arcSecond arc-second part of the angle
*/
public SexagesimalAngle(final int sign, final int degree, final int arcMinute, final double arcSecond) {
this.sign = sign;
this.degree = degree;
this.arcMinute = arcMinute;
this.arcSecond = arcSecond;
}
/** Simple constructor.
* @param angle angle in radians
*/
public SexagesimalAngle(final double angle) {
this.sign = angle < 0 ? -1 : 1;
final double d = FastMath.toDegrees(FastMath.abs(angle));
this.degree = (int) FastMath.floor(d);
final double m = (d - degree) * SIXTY;
this.arcMinute = (int) FastMath.floor(m);
this.arcSecond = (m - arcMinute) * SIXTY;
}
/** Get sign.
* @return sign
*/
public int getSign() {
return sign;
}
/** Get degree part of the angle.
* @return degree part of the angle
*/
public int getDegree() {
return degree;
}
/** Get arc-minute part of the angle.
* @return arc-minute part of the angle
*/
public int getArcMinute() {
return arcMinute;
}
/** Get arc-second part of the angle.
* @return arc-second part of the angle
*/
public double getArcSecond() {
return arcSecond;
}
/** Get the corresponding angle in radians.
* @return angle in radians
*/
public double getAngle() {
return FastMath.toRadians(sign * (degree + (arcMinute + arcSecond / SIXTY) / SIXTY));
}
}