66 lines
2.5 KiB
C++
66 lines
2.5 KiB
C++
/*
|
|
* Copyright 2015-2016 Michele "King_DuckZ" Santullo
|
|
*
|
|
* Licensed 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.
|
|
*/
|
|
|
|
#ifndef id8949C80C36BA42CABC49EA4C1DB54BC7
|
|
#define id8949C80C36BA42CABC49EA4C1DB54BC7
|
|
|
|
#include "vectorwrapper-1.0/vectorwrapper.hpp"
|
|
#include "vectorwrapper-1.0/size_type.hpp"
|
|
#include <type_traits>
|
|
#include <cstddef>
|
|
|
|
#if defined VWR_OUTER_NAMESPACE
|
|
namespace VWR_OUTER_NAMESPACE {
|
|
#endif
|
|
|
|
namespace vwr {
|
|
template <typename V1, typename V2, size_type S>
|
|
typename std::common_type<typename Vec<V1>::scalar_type, typename Vec<V2>::scalar_type>::type dot ( const Vec<V1, S>& parLeft, const Vec<V2, S>& parRight );
|
|
|
|
template <typename V1, typename V2>
|
|
typename std::common_type<typename Vec<V1>::scalar_type, typename Vec<V2>::scalar_type>::type cross ( const Vec<V1, 2>& parLeft, const Vec<V2, 2>& parRight );
|
|
template <typename V1, typename V2>
|
|
Vec<typename std::common_type<V1, V2>::type> cross ( const Vec<V1, 3>& parLeft, const Vec<V2, 3>& parRight );
|
|
|
|
template <typename V1, typename V2, size_type S>
|
|
inline typename std::common_type<typename Vec<V1>::scalar_type, typename Vec<V2>::scalar_type>::type dot (const Vec<V1, S>& parLeft, const Vec<V2, S>& parRight) {
|
|
auto retval = parLeft.x() * parRight.x();
|
|
for (size_type z = 1; z < S; ++z) {
|
|
retval += parLeft[z] * parRight[z];
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
template <typename V1, typename V2>
|
|
inline typename std::common_type<typename Vec<V1>::scalar_type, typename Vec<V2>::scalar_type>::type cross (const Vec<V1, 2>& parLeft, const Vec<V2, 2>& parRight) {
|
|
return parLeft.x() * parRight.y() - parLeft.y() * parRight.x();
|
|
}
|
|
template <typename V1, typename V2>
|
|
inline Vec<typename std::common_type<V1, V2>::type> cross (const Vec<V1, 3>& parLeft, const Vec<V2, 3>& parRight) {
|
|
return Vec<typename std::common_type<V1, V2>::type>(
|
|
parLeft.y() * parRight.z() - parLeft.z() * parRight.y(),
|
|
parLeft.z() * parRight.x() - parLeft.x() * parRight.z(),
|
|
parLeft.x() * parRight.y() - parLeft.y() * parRight.x()
|
|
);
|
|
}
|
|
} //namespace vwr
|
|
|
|
#if defined VWR_OUTER_NAMESPACE
|
|
} //namespace VWR_OUTER_NAMESPACE
|
|
#endif
|
|
|
|
#endif
|