1c6a635497
Add functions for transformations in 3 dimensional homogeneous space. These include functions that generate transformation matrices and perform matrix multiplication.
76 lines
2.0 KiB
C++
76 lines
2.0 KiB
C++
/*
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* This file is part of RawTherapee.
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*
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* Copyright (c) 2019 Lawrence Lee <billee@ucdavis.edu>
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*
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* RawTherapee is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* RawTherapee is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more 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 RawTherapee. If not, see <https://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <array>
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namespace rtengine
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{
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namespace homogeneous
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{
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enum Axis {X, Y, Z};
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template <typename T>
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using Matrix = std::array<std::array<T, 4>, 4>;
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/**
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* 3 dimensional homogeneous vector.
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*/
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template <typename T>
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using Vector = std::array<T, 4>;
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/**
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* Creates a 3 dimensional transformation matrix for projection onto a plane.
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* @param location Distance from the origin to the plane.
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* @param normal Direction of the plane's normal.
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*/
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template <typename T>
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Matrix<T> projectionMatrix(T location, Axis normal);
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/**
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* Creates a 3 dimensional transformation matrix for rotation.
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* @param radians Rotation angle.
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* @param axis Axis of rotation.
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*/
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template <typename T>
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Matrix<T> rotationMatrix(T radians, Axis axis);
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/**
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* Creates a 3 dimensional transformation matrix for translation.
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* @param x Translation in the the x-direction.
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* @param y Translation in the the y-direction.
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* @param z Translation in the the z-direction.
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*/
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template <typename T>
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Matrix<T> translationMatrix(T x, T y, T z);
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}
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template <typename T>
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homogeneous::Vector<T> operator*(const homogeneous::Matrix<T>& a, const homogeneous::Vector<T>& b);
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template <typename T>
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homogeneous::Matrix<T> operator*(const homogeneous::Matrix<T>& a, const homogeneous::Matrix<T>& b);
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}
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#include "homogeneouscoordinates.cc"
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