Constants.h

#ifndef COVIDSIM_CONSTANTS_H_INCLUDED_
#define COVIDSIM_CONSTANTS_H_INCLUDED_

constexpr double PI = 3.1415926535; // full double precision: 3.14159265358979323846

constexpr int NMI = 1852;

constexpr int ARCMINUTES_PER_DEGREE = 60;

constexpr int DEGREES_PER_TURN = 360;

constexpr int EARTH_CIRCUMFERENCE = NMI * ARCMINUTES_PER_DEGREE * DEGREES_PER_TURN;

constexpr double EARTH_DIAMETER = EARTH_CIRCUMFERENCE / PI;

constexpr double EARTHRADIUS = EARTH_DIAMETER / 2;
 
const int OUTPUT_DIST_SCALE = 1000;
const int MAX_PLACE_SIZE = 20000;
const int MAX_NUM_SEED_LOCATIONS = 10000;
 
const int CDF_RES = 20;
const int INFPROF_RES = 56;
 
const int NUM_AGE_GROUPS = 17;
const int AGE_GROUP_WIDTH = 5;
const int DAYS_PER_YEAR = 364;
const int INFECT_TYPE_MASK = 16;
const int MAX_GEN_REC = 20;
const int MAX_SEC_REC = 500;
const int INF_QUEUE_SCALE = 5;
const int MAX_TRAVEL_TIME = 14;
 
const int MAX_INFECTIOUS_STEPS = 2550;
 
// define maximum number of contacts
const int MAX_CONTACTS = 500;
 
const int MAX_DUR_IMPORT_PROFILE = 10245;
 
const int MAX_AIRPORTS = 5000;
const int NNA = 10;
// Need to use define for MAX_DIST_AIRPORT_TO_HOTEL to avoid differences between GCC and clang in requirements to share const doubles in OpenMP default(none) pragmas
#define MAX_DIST_AIRPORT_TO_HOTEL 200000.0
const int MIN_HOTELS_PER_AIRPORT = 20;
const int HOTELS_PER_1000PASSENGER = 10;
 
const int MAX_NUM_INTERVENTION_CHANGE_TIMES = 100; // may want to make this intervention-specifc, but keep simple for now.
 
#endif // COVIDSIM_CONSTANTS_H_INCLUDED_