libcruft-util/quaternion.hpp

38 lines
1.0 KiB
C++

/*
* 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.
*
* Copyright 2011 Danny Robson <danny@nerdcruft.net>
*/
#ifndef __UTIL_QUATERNION_HPP
#define __UTIL_QUATERNION_HPP
#include "vector.hpp"
namespace util {
template <typename T>
struct quaternion {
T w, x, y, z;
static const quaternion IDENTITY;
static quaternion rotation (T radians, vector<3,T> axis);
static quaternion rotation (vector<3,T> from, vector<3,T> to);
quaternion operator* (const quaternion&) const;
};
}
#endif