transformation.h

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/*
 * -------------------------------------------
 * Copyright (c) 2021 - 2024 Prashant K. Jha
 * -------------------------------------------
 * PeriDEM https://github.com/prashjha/PeriDEM
 *
 * Distributed under the Boost Software License, Version 1.0. (See accompanying
 * file LICENSE)
 */
 
#ifndef UTIL_TRANSFORMATION_H
#define UTIL_TRANSFORMATION_H
 
#include "point.h"              // definition of Point
#include <vector>
 
namespace util {
 
std::vector<double> rotateCW2D(const std::vector<double> &x,
                               const double &theta);
 
util::Point rotateCW2D(const util::Point &x, const double &theta);
 
std::vector<double> rotateACW2D(const std::vector<double> &x,
                                const double &theta);
 
util::Point rotateACW2D(const util::Point &x, const double &theta);
 
std::vector<double> rotate2D(const std::vector<double> &x, const double &theta);
 
util::Point rotate2D(const util::Point &x, const double &theta);
 
util::Point derRotate2D(const util::Point &x, const double &theta);
 
util::Point rotate(const util::Point &p, const double &theta, const util::Point &axis);
 
double angle(util::Point a, util::Point b);
 
double angle(util::Point a, util::Point b, util::Point axis, bool is_axis = true);
 
} // namespace util
 
#endif // UTIL_TRANSFORMATION_H