Units.java

  1. /* Copyright 2002-2022 CS GROUP
  2.  * Licensed to CS GROUP (CS) under one or more
  3.  * contributor license agreements.  See the NOTICE file distributed with
  4.  * this work for additional information regarding copyright ownership.
  5.  * CS licenses this file to You under the Apache License, Version 2.0
  6.  * (the "License"); you may not use this file except in compliance with
  7.  * the License.  You may obtain a copy of the License at
  8.  *
  9.  *   http://www.apache.org/licenses/LICENSE-2.0
  10.  *
  11.  * Unless required by applicable law or agreed to in writing, software
  12.  * distributed under the License is distributed on an "AS IS" BASIS,
  13.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14.  * See the License for the specific language governing permissions and
  15.  * limitations under the License.
  16.  */
  17. package org.orekit.gnss.metric.parser;

  18. import org.orekit.propagation.analytical.gnss.data.GNSSConstants;
  19. import org.orekit.utils.units.Unit;

  20. /**
  21.  * Units used in RTCM and IGS SSR messages.
  22.  *
  23.  * @author Bryan Cazabonne
  24.  * @since 11.0
  25.  */
  26. public class Units {

  27.     /** Semi-circles units. */
  28.     public static final Unit SEMI_CIRCLE = Unit.RADIAN.scale("sc", GNSSConstants.GNSS_PI);

  29.     /** Nanoseconds units. */
  30.     public static final Unit NS = Unit.parse("ns");

  31.     /** Millimetres units. */
  32.     public static final Unit MM = Unit.parse("mm");

  33.     /** Millimetres per second units. */
  34.     public static final Unit MM_PER_S = Unit.parse("mm/s");

  35.     /** Millimetres per square second units. */
  36.     public static final Unit MM_PER_S2 = Unit.parse("mm/s²");

  37.     /** Kilometers par second units. */
  38.     public static final Unit KM_PER_S = Unit.parse("km/s");

  39.     /** Kilometers par square second units. */
  40.     public static final Unit KM_PER_S2 = Unit.parse("km/s²");

  41.     /** Private constructor for a utility class. */
  42.     private Units() {
  43.         // Nothing to do
  44.     }

  45. }