KeplerianElementsKey.java
/* Copyright 2002-2024 CS GROUP
* 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,
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package org.orekit.files.ccsds.ndm.odm;
import org.orekit.files.ccsds.definitions.Units;
import org.orekit.files.ccsds.utils.ContextBinding;
import org.orekit.files.ccsds.utils.lexical.ParseToken;
import org.orekit.files.ccsds.utils.lexical.TokenType;
import org.orekit.orbits.PositionAngleType;
import org.orekit.utils.units.Unit;
/** Keys for {@link KeplerianElements Keplerian elements} entries.
* @author Luc Maisonobe
* @since 11.0
*/
public enum KeplerianElementsKey {
/** Comment entry. */
COMMENT((token, context, container) ->
token.getType() == TokenType.ENTRY ? container.addComment(token.getContentAsNormalizedString()) : true),
/** Epoch of Keplerian elements. */
EPOCH((token, context, container) -> token.processAsDate(container::setEpoch, context)),
/** Orbit semi-major axis. */
SEMI_MAJOR_AXIS((token, context, container) -> token.processAsDouble(Unit.KILOMETRE, context.getParsedUnitsBehavior(), container::setA)),
/** Mean motion. */
MEAN_MOTION((token, context, container) -> token.processAsDouble(Units.REV_PER_DAY, context.getParsedUnitsBehavior(), container::setMeanMotion)),
/** Orbit eccentricity. */
ECCENTRICITY((token, context, container) -> token.processAsDouble(Unit.ONE, context.getParsedUnitsBehavior(), container::setE)),
/** Orbit inclination. */
INCLINATION((token, context, container) -> token.processAsDouble(Unit.DEGREE, context.getParsedUnitsBehavior(), container::setI)),
/** Orbit right ascension of ascending node. */
RA_OF_ASC_NODE((token, context, container) -> token.processAsDouble(Unit.DEGREE, context.getParsedUnitsBehavior(), container::setRaan)),
/** Orbit argument of pericenter. */
ARG_OF_PERICENTER((token, context, container) -> token.processAsDouble(Unit.DEGREE, context.getParsedUnitsBehavior(), container::setPa)),
/** Orbit true anomaly. */
TRUE_ANOMALY((token, context, container) -> {
if (token.getType() == TokenType.ENTRY) {
final double angle = context.
getParsedUnitsBehavior().
select(token.getUnits(), Unit.DEGREE).
toSI(token.getContentAsDouble());
container.setAnomaly(angle);
container.setAnomalyType(PositionAngleType.TRUE);
}
return true;
}),
/** Orbit mean anomaly. */
MEAN_ANOMALY((token, context, container) -> {
if (token.getType() == TokenType.ENTRY) {
final double angle = context.
getParsedUnitsBehavior().
select(token.getUnits(), Unit.DEGREE).
toSI(token.getContentAsDouble());
container.setAnomaly(angle);
container.setAnomalyType(PositionAngleType.MEAN);
}
return true;
}),
/** Gravitational coefficient. */
GM((token, context, container) -> token.processAsDouble(Units.KM3_PER_S2, context.getParsedUnitsBehavior(), container::setMu));
/** Processing method. */
private final transient TokenProcessor processor;
/** Simple constructor.
* @param processor processing method
*/
KeplerianElementsKey(final TokenProcessor processor) {
this.processor = processor;
}
/** Process one token.
* @param token token to process
* @param context context binding
* @param container container to fill
* @return true of token was accepted
*/
public boolean process(final ParseToken token, final ContextBinding context, final KeplerianElements container) {
return processor.process(token, context, container);
}
/** Interface for processing one token. */
interface TokenProcessor {
/** Process one token.
* @param token token to process
* @param context context binding
* @param container container to fill
* @return true of token was accepted
*/
boolean process(ParseToken token, ContextBinding context, KeplerianElements container);
}
}