mirror of https://github.com/mosra/magnum.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
77 lines
3.0 KiB
77 lines
3.0 KiB
/* |
|
This file is part of Magnum. |
|
|
|
Copyright © 2010, 2011, 2012, 2013 Vladimír Vondruš <mosra@centrum.cz> |
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a |
|
copy of this software and associated documentation files (the "Software"), |
|
to deal in the Software without restriction, including without limitation |
|
the rights to use, copy, modify, merge, publish, distribute, sublicense, |
|
and/or sell copies of the Software, and to permit persons to whom the |
|
Software is furnished to do so, subject to the following conditions: |
|
|
|
The above copyright notice and this permission notice shall be included |
|
in all copies or substantial portions of the Software. |
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
|
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
|
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
|
DEALINGS IN THE SOFTWARE. |
|
*/ |
|
|
|
#include "Sphere.h" |
|
|
|
#include "Math/Functions.h" |
|
#include "Math/Matrix3.h" |
|
#include "Math/Matrix4.h" |
|
#include "Math/Geometry/Distance.h" |
|
#include "Magnum.h" |
|
#include "Shapes/LineSegment.h" |
|
#include "Shapes/Point.h" |
|
|
|
using namespace Magnum::Math::Geometry; |
|
|
|
namespace Magnum { namespace Shapes { |
|
|
|
namespace { |
|
template<UnsignedInt dimensions> static typename DimensionTraits<dimensions, Float>::VectorType unitVector(); |
|
|
|
template<> inline Vector2 unitVector<2>() { |
|
return Vector2(1/Constants::sqrt2()); |
|
} |
|
|
|
template<> inline Vector3 unitVector<3>() { |
|
return Vector3(1/Constants::sqrt3()); |
|
} |
|
} |
|
|
|
template<UnsignedInt dimensions> Sphere<dimensions> Sphere<dimensions>::transformed(const typename DimensionTraits<dimensions, Float>::MatrixType& matrix) const { |
|
return Sphere<dimensions>(matrix.transformPoint(_position), |
|
(matrix.rotationScaling()*unitVector<dimensions>()).length()*_radius); |
|
} |
|
|
|
template<UnsignedInt dimensions> bool Sphere<dimensions>::operator%(const Point<dimensions>& other) const { |
|
return (other.position()-_position).dot() < Math::pow<2>(_radius); |
|
} |
|
|
|
template<UnsignedInt dimensions> bool Sphere<dimensions>::operator%(const Line<dimensions>& other) const { |
|
return Distance::linePointSquared(other.a(), other.b(), _position) < Math::pow<2>(_radius); |
|
} |
|
|
|
template<UnsignedInt dimensions> bool Sphere<dimensions>::operator%(const LineSegment<dimensions>& other) const { |
|
return Distance::lineSegmentPointSquared(other.a(), other.b(), _position) < Math::pow<2>(_radius); |
|
} |
|
|
|
template<UnsignedInt dimensions> bool Sphere<dimensions>::operator%(const Sphere<dimensions>& other) const { |
|
return (other._position-_position).dot() < Math::pow<2>(_radius+other._radius); |
|
} |
|
|
|
#ifndef DOXYGEN_GENERATING_OUTPUT |
|
template class MAGNUM_SHAPES_EXPORT Sphere<2>; |
|
template class MAGNUM_SHAPES_EXPORT Sphere<3>; |
|
#endif |
|
|
|
}}
|
|
|