diff options
Diffstat (limited to 'c++/particle/geometry')
| -rw-r--r-- | c++/particle/geometry/circle.hpp | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/c++/particle/geometry/circle.hpp b/c++/particle/geometry/circle.hpp deleted file mode 100644 index 331f06d..0000000 --- a/c++/particle/geometry/circle.hpp +++ /dev/null @@ -1,66 +0,0 @@ -#pragma once - -#include "../particle.hpp" - -namespace kel { -namespace lbm { - -template<typename T> -class particle_circle_geometry { -private: -public: - particle_circle_geometry() - {} - - template<typename MT = T> - saw::data<sch::ParticleMask<MT,2>> generate_mask(uint64_t resolution, uint64_t boundary_nodes = 0) const { - saw::data<sch::ParticleMask<MT,2>> mask; - - auto& grid = mask.template get<"grid">(); - auto& com = mask.template get<"center_of_mass">(); - com = {}; - - //uint64_t rad_i = static_cast<uint64_t>(resolution * radius_.get())+1u; - uint64_t diameter_i = resolution; - uint64_t size = diameter_i + 2*boundary_nodes; - grid = {{{size,size}}}; - - saw::data<T> delta_x{static_cast<typename saw::native_data_type<T>::type>(2.0 / static_cast<double>(diameter_i))}; - saw::data<T> center = (saw::data<T>{1.0} + saw::data<T>{2.0} * saw::data<T>{static_cast<saw::native_data_type<T>::type>(boundary_nodes)/diameter_i}); - - for(uint64_t i = 0; i < size; ++i){ - for(uint64_t j = 0; j < size; ++j){ - grid.at({{i,j}}).set(0); - if(i >= boundary_nodes and j >= boundary_nodes and i < (diameter_i + boundary_nodes) and j < (diameter_i + boundary_nodes) ){ - saw::data<T> fi = saw::data<T>{static_cast<saw::native_data_type<T>::type>(0.5+i)} * delta_x - center; - saw::data<T> fj = saw::data<T>{static_cast<saw::native_data_type<T>::type>(0.5+j)} * delta_x - center; - - auto norm_f_ij = fi*fi + fj*fj; - if(norm_f_ij.get() <= 1){ - grid.at({{i,j}}).set(1); - } - } - } - } - - saw::data<T> total_mass{}; - iterate_over([&](const saw::data<sch::FixedArray<sch::UInt64,2u>>& index){ - auto ind_vec = saw::math::vectorize_data(index).template cast_to<T>(); - for(uint64_t i{0u}; i < 2u; ++i){ - ind_vec.at({{i}}) = ind_vec.at({{i}}) * grid.at(index); - } - com = com + ind_vec; - - total_mass = total_mass + grid.at(index); - },{{0u,0u}}, grid.dims()); - - for(uint64_t i{0u}; i < 2u; ++i){ - com.at({{i}}) = com.at({{i}}) / total_mass; - } - - return mask; - } -}; - -} -} |
