so3_types.h

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// S03 package to perform Wigner transform on the rotation group SO(3)
// Copyright (C) 2013 Martin Büttner and Jason McEwen
// See LICENSE.txt for license details
 
#ifndef SO3_TYPES
#define SO3_TYPES
 
#include <ssht/ssht.h>
#ifdef __cplusplus
#include <complex>
#define SO3_COMPLEX(TYPE) std::complex<TYPE>
extern "C" {
#else
#define SO3_COMPLEX(TYPE) TYPE complex
#endif
 
 
#ifdef __cplusplus
}
#endif
 
#define SO3_PI    3.141592653589793238462643383279502884197
#define SO3_PION2 1.570796326794896619231321691639751442099
 
#define SO3_SQRT2 1.41421356237309504880168872420969807856967
 
#define SO3_PROMPT "[so3] "
 
typedef enum {
    SO3_N_ORDER_ZERO_FIRST,
    SO3_N_ORDER_NEGATIVE_FIRST,
    SO3_N_ORDER_SIZE
} so3_n_order_t;
 
typedef enum {
    SO3_STORAGE_PADDED,
    SO3_STORAGE_COMPACT,
    SO3_STORAGE_SIZE
} so3_storage_t;
 
typedef enum {
    SO3_N_MODE_ALL,
    SO3_N_MODE_EVEN,
    SO3_N_MODE_ODD,
    SO3_N_MODE_MAXIMUM,
    SO3_N_MODE_L,
    SO3_N_MODE_SIZE
} so3_n_mode_t;
 
typedef enum {
    SO3_SAMPLING_MW,
    SO3_SAMPLING_MW_SS,
    SO3_SAMPLING_SIZE
} so3_sampling_t;
 
typedef struct {
    int verbosity;
 
    int reality;
 
    int L0;
 
    int L;
 
    int N;
 
    so3_sampling_t sampling_scheme;
 
    so3_n_order_t n_order;
 
    so3_storage_t storage;
 
    so3_n_mode_t n_mode;
 
    ssht_dl_method_t dl_method;
 
    int steerable;
} so3_parameters_t;
 
#endif