InertiaWriter.java
- /* Copyright 2002-2023 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,
- * 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.files.ccsds.ndm.adm.apm;
- import java.io.IOException;
- import org.orekit.files.ccsds.definitions.Units;
- import org.orekit.files.ccsds.section.AbstractWriter;
- import org.orekit.files.ccsds.utils.generation.Generator;
- /** Writer for inertia data.
- * @author Luc Maisonobe
- * @since 11.0
- */
- class InertiaWriter extends AbstractWriter {
- /** Format version.
- * @since 12.0
- */
- private final double formatVersion;
- /** Inertia block. */
- private final Inertia inertia;
- /** Create a writer.
- * @param formatVersion format version
- * @param xmlTag name of the XML tag surrounding the section
- * @param kvnTag name of the KVN tag surrounding the section (may be null)
- * @param spacecraftParameters spacecraft parameters data to write
- */
- InertiaWriter(final double formatVersion, final String xmlTag, final String kvnTag,
- final Inertia spacecraftParameters) {
- super(xmlTag, kvnTag);
- this.formatVersion = formatVersion;
- this.inertia = spacecraftParameters;
- }
- /** {@inheritDoc} */
- @Override
- protected void writeContent(final Generator generator) throws IOException {
- generator.writeComments(inertia.getComments());
- // frame
- if (inertia.getFrame() != null) {
- generator.writeEntry(InertiaKey.INERTIA_REF_FRAME.name(),
- inertia.getFrame().getName(),
- null, false);
- }
- // inertia matrix
- if (formatVersion < 2.0) {
- generator.writeEntry(InertiaKey.I11.name(), inertia.getInertiaMatrix().getEntry(0, 0), Units.KG_M2, true);
- generator.writeEntry(InertiaKey.I22.name(), inertia.getInertiaMatrix().getEntry(1, 1), Units.KG_M2, true);
- generator.writeEntry(InertiaKey.I33.name(), inertia.getInertiaMatrix().getEntry(2, 2), Units.KG_M2, true);
- generator.writeEntry(InertiaKey.I12.name(), inertia.getInertiaMatrix().getEntry(0, 1), Units.KG_M2, true);
- generator.writeEntry(InertiaKey.I13.name(), inertia.getInertiaMatrix().getEntry(0, 2), Units.KG_M2, true);
- generator.writeEntry(InertiaKey.I23.name(), inertia.getInertiaMatrix().getEntry(1, 2), Units.KG_M2, true);
- } else {
- generator.writeEntry(InertiaKey.IXX.name(), inertia.getInertiaMatrix().getEntry(0, 0), Units.KG_M2, true);
- generator.writeEntry(InertiaKey.IYY.name(), inertia.getInertiaMatrix().getEntry(1, 1), Units.KG_M2, true);
- generator.writeEntry(InertiaKey.IZZ.name(), inertia.getInertiaMatrix().getEntry(2, 2), Units.KG_M2, true);
- generator.writeEntry(InertiaKey.IXY.name(), inertia.getInertiaMatrix().getEntry(0, 1), Units.KG_M2, true);
- generator.writeEntry(InertiaKey.IXZ.name(), inertia.getInertiaMatrix().getEntry(0, 2), Units.KG_M2, true);
- generator.writeEntry(InertiaKey.IYZ.name(), inertia.getInertiaMatrix().getEntry(1, 2), Units.KG_M2, true);
- }
- }
- }