Danny Robson
bd5b9722ea
It had been seen to construct out of single doubles, which is problematic...
106 lines
3.2 KiB
C++
106 lines
3.2 KiB
C++
/*
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* This file is part of libgim.
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*
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* libgim is free software: you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* libgim is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with libgim. If not, see <http://www.gnu.org/licenses/>.
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*
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* Copyright 2011 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __UTIL_VECTOR_HPP
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#define __UTIL_VECTOR_HPP
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#include "json.hpp"
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#include "detail/coord.hpp"
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#include "annotations.hpp"
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#include <array>
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#include <iostream>
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#include <initializer_list>
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namespace util {
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template <size_t S>
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struct vector : public detail::coord_data<S> {
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static_assert (S > 0, "vector dimensions must be strictly positive");
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vector ();
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template <typename... T>
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explicit vector (T ...t): detail::coord_data<S> {std::forward<T> (t)...} { ; }
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util::vector<S> operator* (double) const;
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util::vector<S>& operator*=(double);
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util::vector<S> operator/ (double) const;
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util::vector<S>& operator/=(double);
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util::vector<S> operator+ (double) const;
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util::vector<S>& operator+=(double);
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util::vector<S> operator- (double) const;
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util::vector<S>& operator-=(double);
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util::vector<S> operator* (const util::vector<S>&) const;
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util::vector<S>& operator*=(const util::vector<S>&);
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util::vector<S> operator+ (const util::vector<S>&) const;
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util::vector<S>& operator+=(const util::vector<S>&);
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util::vector<S> operator- (void) const;
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util::vector<S> operator- (const util::vector<S>&) const;
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util::vector<S>& operator-=(const util::vector<S>&);
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util::vector<S>& operator =(const util::vector <S>&);
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bool operator== (const util::vector <S>&) const;
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double magnitude (void) const;
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double magnitude2 (void) const;
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double dot (const util::vector<S>&) const;
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util::vector<S>& normalise (void);
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util::vector<S> normalised (void) const mustuse;
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bool is_zero (void) const;
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template <size_t D> vector<D> redim (void) const;
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void sanity (void) const;
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};
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vector<2> polar_to_cartesian (const vector<2>&);
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vector<3> cross (const vector<3>&, const vector<3>&);
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vector<3> spherical_to_cartesian (const util::vector <3>&);
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vector<3> cartesian_to_spherical (const util::vector <3>&);
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typedef vector<2> vector2;
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typedef vector<3> vector3;
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template <size_t S> util::vector<S> operator* (double, const util::vector<S>&);
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template <size_t S> util::vector<S> operator+ (double, const util::vector<S>&);
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template <size_t S> util::vector<S> operator- (double, const util::vector<S>&);
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template <size_t S> std::ostream& operator<< (std::ostream&, const util::vector<S>&);
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template <size_t S>
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const json::node& operator>> (const json::node&, util::vector<S>&);
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}
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#endif
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