Commit 1e4ae6ca authored by Jose Agustin Arguedas Leiva's avatar Jose Agustin Arguedas Leiva
Browse files

added collisions pairs for cylinders

parent a4816422
......@@ -26,9 +26,40 @@
#include <cstring>
#include <math.h> /* for sqrt, abs */
#include <set>
#include <utility>
#include <vector>
template < class partsize_t>
std::vector<partsize_t> pairs2vec(std::set <std::pair <partsize_t,partsize_t>> ID_pairs){
std::vector<partsize_t> v(2*ID_pairs.size());
int i = 0;
for(auto p: ID_pairs)
v[2*i] = p.first;
v[2*i+1] = p.second;
return v;
template < class partsize_t>
std::set <std::pair <partsize_t,partsize_t>> vec2pairs(std::vector<partsize_t> v){
std::set <std::pair <partsize_t,partsize_t>> ID_pairs;
assert(v.size()%2 == 0);
for(unsigned int i=0; i < v.size()/2; i++)
//DEBUG_MSG((std::to_string(v[2*i])+" "+std::to_string(v[2*i+1])+"\n").c_str());
std::pair <partsize_t, partsize_t> single_collision_pair(v[2*i],v[2*i+1]);
return ID_pairs;
template <class real_number, class partsize_t>
class p2p_cylinder_ghost_collisions{
long int collision_counter;
std::set <std::pair <partsize_t, partsize_t>> collision_pairs;
double width;
double length;
/* Following doubles are needed for the collision computation */
......@@ -49,9 +80,9 @@ public:
template <int size_particle_positions, int size_particle_rhs>
void compute_interaction(const partsize_t /*idx_part1*/,
void compute_interaction(const partsize_t idx_part1,
const real_number pos_part1[], real_number /*rhs_part1*/[],
const partsize_t /*idx_part2*/,
const partsize_t idx_part2,
const real_number pos_part2[], real_number /*rhs_part2*/[],
const real_number /*dist_pow2*/, const real_number /*cutoff*/,
const real_number /*xshift_coef*/, const real_number /*yshift_coef*/, const real_number /*zshift_coef*/){
......@@ -115,10 +146,19 @@ public:
/* If cylinders overlap count it as a collision */
if( min_distance<=width )
collision_counter += 1;
std::pair <partsize_t, partsize_t> single_collision_pair(idx_part1, idx_part2);
//DEBUG_MSG("inside compute interaction idx_part1 = %ld and idx_part2 = %ld\n", idx_part1, idx_part2);
void merge(const p2p_cylinder_ghost_collisions& other){
collision_counter += other.collision_counter;
std::set <std::pair <partsize_t, partsize_t>> new_collision_pairs;
std::set_union(collision_pairs.begin(), collision_pairs.end(),
other.collision_pairs.begin(), other.collision_pairs.end(),
std::inserter(new_collision_pairs, new_collision_pairs.begin()));
collision_pairs = new_collision_pairs;
constexpr static bool isEnable() {
......@@ -152,6 +192,15 @@ public:
return this->length;
std::set <std::pair <partsize_t,partsize_t>> get_collision_pairs() const{
return collision_pairs;
void reset_collision_pairs(){
Supports Markdown
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment