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67 lines
2.3 KiB
67 lines
2.3 KiB
#ifndef MEDUSA_BITS_DOMAINS_BALLSHAPE_FWD_HPP_
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#define MEDUSA_BITS_DOMAINS_BALLSHAPE_FWD_HPP_
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/**
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* @file
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* Declaration of class for ball shaped domains.
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*
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* @example test/domains/BallShape_test.cpp
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*/
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#include <medusa/Config.hpp>
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#include <medusa/bits/types/Vec_fwd.hpp>
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#include "DomainShape_fwd.hpp"
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namespace mm {
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/**
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* Class for working with ball shaped domains.
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*
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* Usage example:
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* @snippet domains/BallShape_test.cpp BallShape usage example
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* @ingroup domains
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*/
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template <typename vec_t>
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class BallShape : public DomainShape<vec_t> {
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vec_t center_; ///< Center of the ball.
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double radius_; ///< Radius of the ball.
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using DomainShape<vec_t>::margin_;
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public:
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using typename DomainShape<vec_t>::scalar_t;
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using DomainShape<vec_t>::dim;
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using DomainShape<vec_t>::discretizeBoundaryWithDensity;
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using DomainShape<vec_t>::discretizeWithDensity;
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using DomainShape<vec_t>::discretizeBoundaryWithStep;
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using DomainShape<vec_t>::discretizeWithStep;
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/**
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* Constructs a `d`-dimensional ball defined by its center and radius.
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* @param center Position of the centre of the ball.
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* @param radius Radius of the ball.
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*/
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BallShape(const vec_t& center, double radius) : center_(center), radius_(radius) {}
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/// Returns the position of the centre of the ball.
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const vec_t& center() const { return center_; }
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/// Returns the radius of the ball.
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scalar_t radius() const { return radius_; }
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bool contains(const vec_t& point) const override {
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return (center_ - point).squaredNorm() < (radius_ + margin_)*(radius_ + margin_);
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}
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std::pair<vec_t, vec_t> bbox() const override {
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return {center_ - vec_t(radius_), center_ + vec_t(radius_)};
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}
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DomainDiscretization<vec_t> discretizeBoundaryWithStep(scalar_t step, int type) const override;
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DomainDiscretization<vec_t> discretizeWithStep(
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scalar_t step, int internal_type, int boundary_type) const override;
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DomainDiscretization<vec_t> discretizeBoundaryWithDensity(
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const std::function<scalar_t(vec_t)>& dr, int type) const override;
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BallShape<vec_t>* clone() const override { return new BallShape<vec_t>(*this); }
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std::ostream& print(std::ostream& os) const override;
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};
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} // namespace mm
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#endif // MEDUSA_BITS_DOMAINS_BALLSHAPE_FWD_HPP_
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