/home/hauberg/Dokumenter/Capture/humim-tracker-0.1/src/OpenTissue/OpenTissue/core/geometry/geometry_compute_sphere_mass_properties.h

Go to the documentation of this file.

#ifndef OPENTISSUE_CORE_GEOMETRY_GEOMETRY_COMPUTE_SPHERE_MASS_PROPERTIES_H
#define OPENTISSUE_CORE_GEOMETRY_GEOMETRY_COMPUTE_SPHERE_MASS_PROPERTIES_H
//
// OpenTissue Template Library
// - A generic toolbox for physics-based modeling and simulation.
// Copyright (C) 2008 Department of Computer Science, University of Copenhagen.
//
// OTTL is licensed under zlib: http://opensource.org/licenses/zlib-license.php
//
#include <OpenTissue/configuration.h>

#include <OpenTissue/core/math/math_constants.h>

namespace OpenTissue
{
  namespace geometry
  {

    template<typename real_type,typename vector3_type>
    void compute_sphere_mass_properties(
      real_type const & radius
      , real_type const & density
      , real_type & mass
      , vector3_type & inertia
      )
    {
      real_type V = (4.*math::detail::pi<real_type>()*radius*radius*radius)/3.;
      mass = density * V;
      inertia(0) = inertia(1) = inertia(2) =(2.*mass*radius*radius)/5.;
    }

  } //End of namespace geometry
} //End of namespace OpenTissue

// OPENTISSUE_CORE_GEOMETRY_GEOMETRY_COMPUTE_SPHERE_MASS_PROPERTIES_H
#endif