| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF 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.apache.commons.geometry.euclidean.threed.rotation; |
| |
| /** Defines different types of rotation axis sequences. |
| */ |
| public enum AxisSequenceType { |
| |
| /** Represents Euler angles, which consist of axis sequences |
| * in the pattern <em>ABA</em>. For example, the sequences {@code ZXZ}, {@code XYX}, etc. |
| * fit this definition. Other types of sequences that do not match this |
| * pattern are often called "Euler angles" in common usage. However, this enum |
| * value is intended to represent only those sequences that match exactly, ie "proper" Euler angles. |
| * @see <a href="https://en.wikipedia.org/wiki/Euler_angles#Proper_Euler_angles">Proper Euler angles</a> |
| */ |
| EULER, |
| |
| /** Represents Tait-Bryan angles, which consist of axis sequences |
| * in the pattern <em>ABC</em>. For example, the sequences {@code XYZ}, {@code ZXY}, |
| * etc. fit this definition. Tait-Bryan angles are also called Cardan angles. |
| * @see <a href="https://en.wikipedia.org/wiki/Euler_angles#Tait%E2%80%93Bryan_angles">Tait-Bryan angles</a> |
| */ |
| TAIT_BRYAN |
| } |
