diff options
Diffstat (limited to 'src/Contraction/example/Garland_heckbert/Point.h')
| -rw-r--r-- | src/Contraction/example/Garland_heckbert/Point.h | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/src/Contraction/example/Garland_heckbert/Point.h b/src/Contraction/example/Garland_heckbert/Point.h deleted file mode 100644 index eb250347..00000000 --- a/src/Contraction/example/Garland_heckbert/Point.h +++ /dev/null @@ -1,176 +0,0 @@ -/* - * Basic_geometry.h - * Created on: Feb 10, 2015 - * This file is part of the Gudhi Library. The Gudhi library - * (Geometric Understanding in Higher Dimensions) is a generic C++ - * library for computational topology. - * - * Author(s): David Salinas - * - * Copyright (C) 2014 INRIA Sophia Antipolis-Méditerranée (France) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - * - */ - - -#ifndef BASIC_GEOMETRY_H_ -#define BASIC_GEOMETRY_H_ - -#include <cmath> -#include <vector> -#include <cassert> -#include <cstddef> - -class Point_d{ -public: - Point_d():coords_(3,0){} - Point_d(size_t dim):coords_(dim,0){} - Point_d(const Point_d& other):coords_(other.coords_){} - Point_d(double x,double y,double z):coords_({x,y,z}){} - - template<typename CoordsIt> - Point_d(CoordsIt begin,CoordsIt end):coords_(begin,end){} - - size_t dimension() const{ - return coords_.size(); - } - - double x() const{ - return coords_[0]; - } - - double y() const{ - return coords_[1]; - } - - double z() const{ - return coords_[2]; - } - - double& x(){ - return coords_[0]; - } - - double& y(){ - return coords_[1]; - } - - double& z(){ - return coords_[2]; - } - - std::vector<double>::const_iterator begin() const{ - return coords_.begin(); - } - - std::vector<double>::const_iterator end() const{ - return coords_.end(); - } - - double& operator[](unsigned i){ - return coords_[i]; - } - const double& operator[](unsigned i) const{ - return coords_[i]; - } - - double squared_norm() const{ - double res = 0; - for(auto x : coords_) - res+= x*x; - return res; - } - - double squared_dist(const Point_d& other) const{ - assert(dimension()==other.dimension()); - double res = 0; - for(unsigned i = 0; i < coords_.size(); ++i) - res+= coords_[i]*coords_[i] + other[i]*other[i]; - return res; - } - - /** - * dot product - */ - double operator*(const Point_d& other) const{ - assert(dimension()==other.dimension()); - double res = 0; - for(unsigned i = 0; i < coords_.size(); ++i) - res+= coords_[i]*other[i]; - return res; - } - - /** - * only if points have dimension 3 - */ - Point_d cross_product(const Point_d& other){ - assert(dimension()==3 && other.dimension()==3); - Point_d res(3); - res[0] = (*this)[1] * other[2] - (*this)[2] * other[1]; - res[1] = (*this)[2] * other[0] - (*this)[0] * other[2]; - res[2] = (*this)[0] * other[1] - (*this)[1] * other[0]; - return res; - } - - Point_d operator+(const Point_d& other) const{ - assert(dimension()==other.dimension()); - Point_d res(dimension()); - for(unsigned i = 0; i < coords_.size(); ++i) - res[i] = (*this)[i] + other[i]; - return res; - } - - Point_d operator*(double lambda) const{ - Point_d res(dimension()); - for(unsigned i = 0; i < coords_.size(); ++i) - res[i] = (*this)[i] * lambda; - return res; - } - - Point_d operator/(double lambda) const{ - Point_d res(dimension()); - for(unsigned i = 0; i < coords_.size(); ++i) - res[i] = (*this)[i] / lambda; - return res; - } - - Point_d operator-(const Point_d& other) const{ - assert(dimension()==other.dimension()); - Point_d res(dimension()); - for(unsigned i = 0; i < coords_.size(); ++i) - res[i] = (*this)[i] - other[i]; - return res; - } - - friend Point_d unit_normal(const Point_d& p1,const Point_d& p2,const Point_d& p3){ - assert(p1.dimension()==3); - assert(p2.dimension()==3); - assert(p3.dimension()==3); - Point_d p1p2 = p2 - p1; - Point_d p1p3 = p3 - p1; - Point_d res(p1p2.cross_product(p1p3)); - return res / std::sqrt(res.squared_norm()); - } - - -private: - std::vector<double> coords_; -}; - - - - - -#endif /* BASIC_GEOMETRY_H_ */ |