1 /*
2  * Copyright (c) 2011-2021, The DART development contributors
3  * All rights reserved.
4  *
5  * The list of contributors can be found at:
6  *   https://github.com/dartsim/dart/blob/master/LICENSE
7  *
8  * This file is provided under the following "BSD-style" License:
9  *   Redistribution and use in source and binary forms, with or
10  *   without modification, are permitted provided that the following
11  *   conditions are met:
12  *   * Redistributions of source code must retain the above copyright
13  *     notice, this list of conditions and the following disclaimer.
14  *   * Redistributions in binary form must reproduce the above
15  *     copyright notice, this list of conditions and the following
16  *     disclaimer in the documentation and/or other materials provided
17  *     with the distribution.
18  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
19  *   CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
20  *   INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
21  *   MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22  *   DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23  *   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
26  *   USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
27  *   AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  *   LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
29  *   ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30  *   POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 #ifndef DART_DYNAMICS_SPHERESHAPE_HPP_
34 #define DART_DYNAMICS_SPHERESHAPE_HPP_
35 
36 #include "dart/dynamics/Shape.hpp"
37 
38 namespace dart {
39 namespace dynamics {
40 
41 class SphereShape : public Shape
42 {
43 public:
44   /// Constructor.
45   explicit SphereShape(double radius);
46 
47   /// Destructor.
48   virtual ~SphereShape();
49 
50   // Documentation inherited.
51   const std::string& getType() const override;
52 
53   /// Returns shape type for this class
54   static const std::string& getStaticType();
55 
56   /// Set radius of this box.
57   void setRadius(double radius);
58 
59   /// Get radius of this box.
60   double getRadius() const;
61 
62   /// Compute volume from given properties
63   static double computeVolume(double radius);
64 
65   /// Compute moments of inertia of a Sphere
66   static Eigen::Matrix3d computeInertia(double radius, double mass);
67 
68   // Documentation inherited.
69   Eigen::Matrix3d computeInertia(double mass) const override;
70 
71 protected:
72   // Documentation inherited.
73   void updateBoundingBox() const override;
74 
75   // Documentation inherited.
76   void updateVolume() const override;
77 
78 private:
79   /// Radius of this Sphere
80   double mRadius;
81 };
82 
83 } // namespace dynamics
84 } // namespace dart
85 
86 #endif // DART_DYNAMICS_SPHERESHAPE_HPP_
87