| 1 |
/* RCSid $Id: atmos.h,v 2.2 2024/07/19 23:38:28 greg Exp $ */ |
| 2 |
#ifndef ATMOS_H |
| 3 |
#define ATMOS_H |
| 4 |
|
| 5 |
#include "color.h" |
| 6 |
#include "data.h" |
| 7 |
#include "fvect.h" |
| 8 |
#include "paths.h" |
| 9 |
#include "rtio.h" |
| 10 |
#include "rtmath.h" |
| 11 |
#include "sun.h" |
| 12 |
|
| 13 |
#ifdef __cplusplus |
| 14 |
extern "C" { |
| 15 |
#endif |
| 16 |
|
| 17 |
#define NSSAMP 20 |
| 18 |
|
| 19 |
typedef struct { |
| 20 |
double width; |
| 21 |
double exp_term; |
| 22 |
double exp_scale; |
| 23 |
double linear_term; |
| 24 |
double constant_term; |
| 25 |
} DensityProfileLayer; |
| 26 |
|
| 27 |
typedef struct { |
| 28 |
DensityProfileLayer layers[2]; |
| 29 |
} DensityProfile; |
| 30 |
|
| 31 |
typedef struct { |
| 32 |
DensityProfile rayleigh_density; |
| 33 |
DensityProfile ozone_density; |
| 34 |
const float *beta_r0; |
| 35 |
float beta_scale; |
| 36 |
DATARRAY *beta_m; |
| 37 |
const double grefl; |
| 38 |
} Atmosphere; |
| 39 |
|
| 40 |
typedef struct { |
| 41 |
char tau[PATH_MAX]; |
| 42 |
char scat[PATH_MAX]; |
| 43 |
char scat1m[PATH_MAX]; |
| 44 |
char irrad[PATH_MAX]; |
| 45 |
} DpPaths; |
| 46 |
|
| 47 |
extern const double ER; |
| 48 |
extern const double AH; |
| 49 |
extern const double HR_MS; |
| 50 |
extern const double HR_MW; |
| 51 |
extern const double HR_SS; |
| 52 |
extern const double HR_SW; |
| 53 |
extern const double HR_T; |
| 54 |
extern const int WVLSPAN; |
| 55 |
extern const float EXTSOL[NSSAMP]; |
| 56 |
extern const float BR0_MS[NSSAMP]; |
| 57 |
extern const float BR0_MW[NSSAMP]; |
| 58 |
extern const float BR0_SS[NSSAMP]; |
| 59 |
extern const float BR0_SW[NSSAMP]; |
| 60 |
extern const float BR0_T[NSSAMP]; |
| 61 |
extern const float BCLOUD; |
| 62 |
extern const double AOD0_CA; |
| 63 |
extern const double SOLOMG; |
| 64 |
|
| 65 |
extern void get_rmumusnu(FVECT vpt, FVECT vdir, FVECT sundir, double *r, |
| 66 |
double *mu, double *mu_s, double *nu); |
| 67 |
|
| 68 |
extern void get_transmittance_to_sun(DATARRAY *tau_dp, const double r, |
| 69 |
const double mu_s, double *result); |
| 70 |
|
| 71 |
extern void get_sky_transmittance(DATARRAY *tau, double r, double mu, float *result); |
| 72 |
|
| 73 |
extern void get_sky_radiance(DATARRAY *scat, DATARRAY *scat1m, const double radius, |
| 74 |
const double mu, const double mu_s, const double nu, float *result); |
| 75 |
|
| 76 |
extern void get_solar_radiance(DATARRAY *tau, DATARRAY *scat, DATARRAY *scat1m, const FVECT sundir, const double radius, const double sun_ct, double *sun_radiance); |
| 77 |
|
| 78 |
extern void get_ground_radiance(DATARRAY *tau, DATARRAY *scat, DATARRAY *scat1m, DATARRAY *irrad, |
| 79 |
const FVECT view_point, const FVECT view_direction, const double radius, const double mu, const double sun_ct, const double nu, |
| 80 |
const double grefl, const FVECT sundir, float *result); |
| 81 |
|
| 82 |
extern void add_cloud_radiance(DATARRAY *scat, double nu, double pt[4], |
| 83 |
float *result); |
| 84 |
|
| 85 |
extern int compute_sundir(const int year, const int month, const int day, |
| 86 |
const double hour, const int tsolar, |
| 87 |
double sundir[3]); |
| 88 |
|
| 89 |
extern int precompute(const int sorder, const DpPaths dppaths, const Atmosphere *atmos, |
| 90 |
int num_threads); |
| 91 |
|
| 92 |
extern DATARRAY *get_indirect_irradiance(DATARRAY *dp, const double radius, |
| 93 |
const double mu_s); |
| 94 |
|
| 95 |
#ifdef __cplusplus |
| 96 |
} |
| 97 |
#endif |
| 98 |
|
| 99 |
#endif /* ATMOS_H */ |
