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18 package org.orekit.files.ccsds.ndm.odm.ocm;
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20 import java.util.List;
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22 import org.orekit.bodies.OneAxisEllipsoid;
23 import org.orekit.time.AbsoluteDate;
24 import org.orekit.time.TimeStamped;
25 import org.orekit.utils.CartesianDerivativesFilter;
26 import org.orekit.utils.TimeStampedPVCoordinates;
27 import org.orekit.utils.units.Unit;
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33 public class TrajectoryState implements TimeStamped {
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36 private final OrbitElementsType type;
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39 private final AbsoluteDate date;
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42 private final double[] elements;
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51 public TrajectoryState(final OrbitElementsType type, final AbsoluteDate date,
52 final String[] fields, final int first, final List<Unit> units) {
53 this.type = type;
54 this.date = date;
55 this.elements = new double[units.size()];
56 for (int i = 0; i < elements.length; ++i) {
57 elements[i] = units.get(i).toSI(Double.parseDouble(fields[first + i]));
58 }
59 }
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67 public TrajectoryState(final OrbitElementsType type, final AbsoluteDate date,
68 final double[] elements) {
69 this.type = type;
70 this.date = date;
71 this.elements = elements.clone();
72 }
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75 @Override
76 public AbsoluteDate getDate() {
77 return date;
78 }
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83 public double[] getElements() {
84 return elements.clone();
85 }
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90 public OrbitElementsType getType() {
91 return type;
92 }
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97 public CartesianDerivativesFilter getAvailableDerivatives() {
98 return type == OrbitElementsType.CARTP ?
99 CartesianDerivativesFilter.USE_P :
100 (type == OrbitElementsType.CARTPVA ?
101 CartesianDerivativesFilter.USE_PVA :
102 CartesianDerivativesFilter.USE_PV);
103 }
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111 public TimeStampedPVCoordinates toCartesian(final OneAxisEllipsoid body, final double mu) {
112 return type.toCartesian(date, elements, body, mu);
113 }
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115 }