fiff_constants.h

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//=============================================================================================================
 
#ifndef FIFF_CONSTANTS_H
#define FIFF_CONSTANTS_H
 
//=============================================================================================================
// DEFINE NAMESPACE FIFFLIB
//=============================================================================================================
 
 
//=============================================================================================================
// FIFF constants
//=============================================================================================================
 
inline constexpr auto FIFFC_FAIL = -1;
inline constexpr auto FIFFC_OK = 0;
 
inline constexpr auto FIFFV_TRUE = 1;
inline constexpr auto FIFFV_FALSE = 0;
 
/* Compatibility definitions */
 
inline constexpr auto FIFF_FAIL = -1;
inline constexpr auto FIFF_OK = 0;
 
 
/*
 * Quaternion channels for head position monitoring
 */
inline constexpr auto FIFFV_QUAT_0 = 700;  
inline constexpr auto FIFFV_QUAT_1 = 701;  
inline constexpr auto FIFFV_QUAT_2 = 702;  
inline constexpr auto FIFFV_QUAT_3 = 703;  
inline constexpr auto FIFFV_QUAT_4 = 704;  
inline constexpr auto FIFFV_QUAT_5 = 705;  
inline constexpr auto FIFFV_QUAT_6 = 706;  
inline constexpr auto FIFFV_HPI_G = 707;   
inline constexpr auto FIFFV_HPI_ERR = 708; 
inline constexpr auto FIFFV_HPI_MOV = 709; 
 
#define FIFFM_QUAT_CH(X) ((X >= FIFFV_QUAT_0) && (X <= FIFFV_HPI_MOV)) /* Check for a quaternion channel */
 
inline constexpr auto FIFFV_DIPOLE_WAVE_CH = 1000;  /* Dipole time curve */
inline constexpr auto FIFFV_GOODNESS_FIT_CH = 1001; /* Goodness of fit */
 
#define FIFFM_CHPOS(x) &((x)->chpos)
 
/*
 * Units of measurement
 */
inline constexpr auto FIFF_UNIT_NONE = -1;
 
/*
 * SI base units
 */
inline constexpr auto FIFF_UNIT_M = 1;
inline constexpr auto FIFF_UNIT_KG = 2;
inline constexpr auto FIFF_UNIT_SEC = 3;
inline constexpr auto FIFF_UNIT_A = 4;
inline constexpr auto FIFF_UNIT_K = 5;
inline constexpr auto FIFF_UNIT_MOL = 6;
 
/*
 * SI Supplementary units
 */
inline constexpr auto FIFF_UNIT_RAD = 7;
inline constexpr auto FIFF_UNIT_SR = 8;
 
/*
 * SI base candela
 */
inline constexpr auto FIFF_UNIT_CD = 9;
 
/*
 * SI derived units
 */
inline constexpr auto FIFF_UNIT_HZ = 101;
inline constexpr auto FIFF_UNIT_N = 102;
inline constexpr auto FIFF_UNIT_PA = 103;
inline constexpr auto FIFF_UNIT_J = 104;
inline constexpr auto FIFF_UNIT_W = 105;
inline constexpr auto FIFF_UNIT_C = 106;
inline constexpr auto FIFF_UNIT_V = 107;
inline constexpr auto FIFF_UNIT_F = 108;
inline constexpr auto FIFF_UNIT_OHM = 109;
inline constexpr auto FIFF_UNIT_MHO = 110;
inline constexpr auto FIFF_UNIT_WB = 111;
inline constexpr auto FIFF_UNIT_T = 112;
inline constexpr auto FIFF_UNIT_H = 113;
inline constexpr auto FIFF_UNIT_CEL = 114;
inline constexpr auto FIFF_UNIT_LM = 115;
inline constexpr auto FIFF_UNIT_LX = 116;
 
/*
 * Others we need
 */
inline constexpr auto FIFF_UNIT_T_M = 201;   /* T/m */
inline constexpr auto FIFF_UNIT_AM = 202;    /* Am  */
inline constexpr auto FIFF_UNIT_AM_M2 = 203; /* Am/m^2  */
inline constexpr auto FIFF_UNIT_AM_M3 = 204; /* Am/m^3  */
 
/*
 * Multipliers
 */
inline constexpr auto FIFF_UNITM_E = 18;
inline constexpr auto FIFF_UNITM_PET = 15;
inline constexpr auto FIFF_UNITM_T = 12;
inline constexpr auto FIFF_UNITM_MEG = 6;
inline constexpr auto FIFF_UNITM_K = 3;
inline constexpr auto FIFF_UNITM_H = 2;
inline constexpr auto FIFF_UNITM_DA = 1;
inline constexpr auto FIFF_UNITM_NONE = 0;
inline constexpr auto FIFF_UNITM_D = -1;
inline constexpr auto FIFF_UNITM_C = -2;
inline constexpr auto FIFF_UNITM_M = -3;
inline constexpr auto FIFF_UNITM_MU = -6;
inline constexpr auto FIFF_UNITM_N = -9;
inline constexpr auto FIFF_UNITM_P = -12;
inline constexpr auto FIFF_UNITM_F = -15;
inline constexpr auto FIFF_UNITM_A = -18;
 
/*
 * Coil types
 */
inline constexpr auto FIFFV_COIL_NONE = 0;                          
inline constexpr auto FIFFV_COIL_EEG = 1;                           
inline constexpr auto FIFFV_COIL_NM_122 = 2;                        
inline constexpr auto FIFFV_COIL_NM_24 = 3;                         
inline constexpr auto FIFFV_COIL_NM_MCG_AXIAL = 4;                  
inline constexpr auto FIFFV_COIL_EEG_BIPOLAR = 5;                   
inline constexpr auto FIFFV_COIL_DIPOLE = 200;                      
inline constexpr auto FIFFV_COIL_MCG_42 = 1000;                     
inline constexpr auto FIFFV_COIL_POINT_MAGNETOMETER = 2000;         
inline constexpr auto FIFFV_COIL_AXIAL_GRAD_5CM = 2001;             
inline constexpr auto FIFFV_COIL_VV_PLANAR_W = 3011;                
inline constexpr auto FIFFV_COIL_VV_PLANAR_T1 = 3012;               
inline constexpr auto FIFFV_COIL_VV_PLANAR_T2 = 3013;               
inline constexpr auto FIFFV_COIL_VV_PLANAR_T3 = 3014;               
inline constexpr auto FIFFV_COIL_VV_MAG_W = 3021;                   
inline constexpr auto FIFFV_COIL_VV_MAG_T1 = 3022;                  
inline constexpr auto FIFFV_COIL_VV_MAG_T2 = 3023;                  
inline constexpr auto FIFFV_COIL_VV_MAG_T3 = 3024;                  
inline constexpr auto FIFFV_COIL_MAGNES_MAG = 4001;                 
inline constexpr auto FIFFV_COIL_MAGNES_GRAD = 4002;                
inline constexpr auto FIFFV_COIL_CTF_GRAD = 5001;                   
inline constexpr auto FIFFV_COIL_CTF_REF_MAG = 5002;                
inline constexpr auto FIFFV_COIL_CTF_REF_GRAD = 5003;               
inline constexpr auto FIFFV_COIL_CTF_REF_GOFF = 5004;               
inline constexpr auto FIFFV_COIL_KIT_GRAD = 6001;                   
inline constexpr auto FIFFV_COIL_KIT_REF_GRAD = 6002;               
inline constexpr auto FIFFV_COIL_BABY_GRAD = 7001;                  
inline constexpr auto FIFFV_COIL_BABY_MAG = 7002;                   
inline constexpr auto FIFFV_COIL_BABY_REF_MAG = 7003;               
inline constexpr auto FIFFV_COIL_BABY_REF_MAG2 = 7004;              
inline constexpr auto FIFFV_COIL_ARTEMIS123_GRAD = 7501;            
inline constexpr auto FIFFV_COIL_ARTEMIS123_REF_MAG = 7502;         
inline constexpr auto FIFFV_COIL_ARTEMIS123_REF_GRAD = 7503;        
inline constexpr auto FIFFV_COIL_QUSPIN_ZFOPM_MAG = 8001;           
inline constexpr auto FIFFV_COIL_KRISS_GRAD = 9001;                 
inline constexpr auto FIFFV_COIL_COMPUMEDICS_ADULT_GRAD = 9101;     
inline constexpr auto FIFFV_COIL_COMPUMEDICS_PEDIATRIC_GRAD = 9102; 
 
#define FIFFM_IS_VV_COIL(c) ((c) / 1000 == 3)
 
/*
 * These are the cardinal points for MCG data
 * Left and right are supposed to be located below the sternum point
 */
inline constexpr auto FIFFV_POINT_CHEST_LEFT = 1;
inline constexpr auto FIFFV_POINT_CHEST_STERNUM = 2;
inline constexpr auto FIFFV_POINT_CHEST_RIGHT = 3;
 
/*
 * Coordinate transformation descriptor
 */
inline constexpr auto FIFFV_COORD_UNKNOWN = 0;
inline constexpr auto FIFFV_COORD_DEVICE = 1;
inline constexpr auto FIFFV_COORD_ISOTRAK = 2;
inline constexpr auto FIFFV_COORD_HPI = 3;
inline constexpr auto FIFFV_COORD_HEAD = 4;
inline constexpr auto FIFFV_COORD_MRI = 5;
inline constexpr auto FIFFV_COORD_MRI_SLICE = 6;
inline constexpr auto FIFFV_COORD_MRI_DISPLAY = 7;
#define FIFFV_COORD_XRAY FIFF_COORD_MRI
#define FIFFV_COORD_XRAY_SLICE FIFF_COORD_MRI_SLICE
#define FIFFV_COORD_CT FIFF_COORD_MRI
#define FIFFV_COORD_CT_SLICE FIFF_COORD_MRI_SLICE
 
inline constexpr auto FIFFV_COORD_DICOM_DEVICE = 8;
inline constexpr auto FIFFV_COORD_IMAGING_DEVICE = 9;
 
inline constexpr auto FIFFV_COORD_TORSO = 100;
 
inline constexpr auto FIFFV_MOVE = 1;
inline constexpr auto FIFFV_NO_MOVE = 0;
 
/*
 * Artefact removal parameters
 */
inline constexpr auto FIFFV_ARTEF_MAX = 100;
inline constexpr auto FIFFV_ARTEF_NONE = -1;
inline constexpr auto FIFFV_ARTEF_KEEP = 0;
inline constexpr auto FIFFV_ARTEF_JUMP = 1;
inline constexpr auto FIFFV_ARTEF_NOJUMP = 2;
 
/*
 * The layered sphere model
 */
inline constexpr auto FIFFV_LAYER_BRAIN = 1;
inline constexpr auto FIFFV_LAYER_CSF = 2;
inline constexpr auto FIFFV_LAYER_SKULL = 3;
inline constexpr auto FIFFV_LAYER_HEAD = 4;
 
inline constexpr auto FIFFV_XFIT_MAP_SURF_SENSORS = 0; 
inline constexpr auto FIFFV_XFIT_MAP_SURF_HEAD = 1;    
inline constexpr auto FIFFV_XFIT_MAP_SURF_SPHERE = 2;  
 
/*
 * Pointers
 */
inline constexpr auto FIFFV_NEXT_SEQ = 0;
inline constexpr auto FIFFV_NEXT_NONE = -1;
 
/*
 * Channel types
 */
inline constexpr auto FIFFV_MAGN_CH = 1;
inline constexpr auto FIFFV_EL_CH = 2;
#define FIFFV_MEG_CH FIFFV_MAGN_CH
inline constexpr auto FIFFV_MCG_CH = 201;
inline constexpr auto FIFFV_REF_MEG_CH = 301; 
#define FIFFV_EEG_CH FIFFV_EL_CH
inline constexpr auto FIFFV_STIM_CH = 3;
 
inline constexpr auto FIFFV_EOG_CH = 202;
inline constexpr auto FIFFV_EMG_CH = 302;
inline constexpr auto FIFFV_ECG_CH = 402;
inline constexpr auto FIFFV_MISC_CH = 502;
inline constexpr auto FIFFV_RESP_CH = 602;         
inline constexpr auto FIFFV_BIO_CH = 102;          
inline constexpr auto FIFFV_SYST_CH = 900;         
inline constexpr auto FIFFV_IAS_CH = 910;          
inline constexpr auto FIFFV_EXCI_CH = 920;         
inline constexpr auto FIFFV_FNIRS_CH = 1100;       
inline constexpr auto FIFFV_TEMPERATURE_CH = 1200; 
inline constexpr auto FIFFV_GALVANIC_CH = 1300;    
inline constexpr auto FIFFV_EYETRACK_CH = 1400;    
 
/*
 * Intracranial EEG channel types (FIFF standard, as written by mne-python); their coil type is FIFFV_COIL_EEG
 */
inline constexpr auto FIFFV_ECOG_CH = 902; 
inline constexpr auto FIFFV_SEEG_CH = 802; 
inline constexpr auto FIFFV_DBS_CH = 803;  
 
/*
 * Coil types that distinguish EEG, fNIRS and eye-tracking channel types
 */
inline constexpr auto FIFFV_COIL_EEG_CSD = 6;                      
inline constexpr auto FIFFV_COIL_FNIRS_HBO = 300;                  
inline constexpr auto FIFFV_COIL_FNIRS_HBR = 301;                  
inline constexpr auto FIFFV_COIL_FNIRS_CW_AMPLITUDE = 302;         
inline constexpr auto FIFFV_COIL_FNIRS_OD = 303;                   
inline constexpr auto FIFFV_COIL_FNIRS_FD_AC_AMPLITUDE = 304;      
inline constexpr auto FIFFV_COIL_FNIRS_FD_PHASE = 305;             
inline constexpr auto FIFFV_COIL_FNIRS_TD_GATED_AMPLITUDE = 306;   
inline constexpr auto FIFFV_COIL_FNIRS_TD_MOMENTS_INTENSITY = 307; 
inline constexpr auto FIFFV_COIL_FNIRS_TD_MOMENTS_MEAN = 308;      
inline constexpr auto FIFFV_COIL_FNIRS_TD_MOMENTS_VARIANCE = 309;  
inline constexpr auto FIFFV_COIL_EYETRACK_POS = 400;               
inline constexpr auto FIFFV_COIL_EYETRACK_PUPIL = 401;             
 
/*
 * More of those defined in MNE
 */
inline constexpr auto FIFFV_MNE_SURF_UNKNOWN = -1;
inline constexpr auto FIFFV_MNE_SURF_LEFT_HEMI = 101;
inline constexpr auto FIFFV_MNE_SURF_RIGHT_HEMI = 102;
 
/*
 * These relate to the Isotrak data
 */
inline constexpr auto FIFFV_POINT_CARDINAL = 1;
inline constexpr auto FIFFV_POINT_HPI = 2;
inline constexpr auto FIFFV_POINT_EEG = 3;
#define FIFFV_POINT_ECG FIFFV_POINT_EEG
inline constexpr auto FIFFV_POINT_EXTRA = 4;
 
inline constexpr auto FIFFV_POINT_LPA = 1;
inline constexpr auto FIFFV_POINT_NASION = 2;
inline constexpr auto FIFFV_POINT_RPA = 3;
 
/*
 * These are the MNE fiff definitions
 */
inline constexpr auto FIFFB_MNE = 350;
inline constexpr auto FIFFB_MNE_SOURCE_SPACE = 351;
inline constexpr auto FIFFB_MNE_FORWARD_SOLUTION = 352;
inline constexpr auto FIFFB_MNE_PARENT_MRI_FILE = 353;
inline constexpr auto FIFFB_MNE_PARENT_MEAS_FILE = 354;
inline constexpr auto FIFFB_MNE_COV = 355;
inline constexpr auto FIFFB_MNE_INVERSE_SOLUTION = 356;
inline constexpr auto FIFFB_MNE_NAMED_MATRIX = 357;
inline constexpr auto FIFFB_MNE_ENV = 358;
inline constexpr auto FIFFB_MNE_BAD_CHANNELS = 359;
inline constexpr auto FIFFB_MNE_VERTEX_MAP = 360;
inline constexpr auto FIFFB_MNE_EVENTS = 361;
inline constexpr auto FIFFB_MNE_MORPH_MAP = 362;
 
/*
 * CTF compensation data
 */
inline constexpr auto FIFFB_MNE_CTF_COMP = 370;
inline constexpr auto FIFFB_MNE_CTF_COMP_DATA = 371;
inline constexpr auto FIFFB_MNE_DERIVATIONS = 372;
 
/*
 * Fiff tags associated with MNE computations (3500...)
 * 3500... Bookkeeping
 */
inline constexpr auto FIFF_MNE_ROW_NAMES = 3502;
inline constexpr auto FIFF_MNE_COL_NAMES = 3503;
inline constexpr auto FIFF_MNE_NROW = 3504;
inline constexpr auto FIFF_MNE_NCOL = 3505;
inline constexpr auto FIFF_MNE_COORD_FRAME = 3506; 
//FIFFB_MNE_SOURCE_SPACE   #define FIFFV_COORD_MRI
//FIFFB_MNE_FORWARD_SOLUTION   FIFFV_COORD_HEAD
//FIFFB_MNE_INVERSE_SOLUTION   FIFFV_COORD_HEAD
inline constexpr auto FIFF_MNE_CH_NAME_LIST = 3507;
inline constexpr auto FIFF_MNE_FILE_NAME = 3508; 
 
/*
 * 3510... 3590... Source space or surface
 */
inline constexpr auto FIFF_MNE_SOURCE_SPACE_POINTS = 3510;       
inline constexpr auto FIFF_MNE_SOURCE_SPACE_NORMALS = 3511;      
inline constexpr auto FIFF_MNE_SOURCE_SPACE_NPOINTS = 3512;      
inline constexpr auto FIFF_MNE_SOURCE_SPACE_SELECTION = 3513;    
inline constexpr auto FIFF_MNE_SOURCE_SPACE_NUSE = 3514;         
inline constexpr auto FIFF_MNE_SOURCE_SPACE_NEAREST = 3515;      
inline constexpr auto FIFF_MNE_SOURCE_SPACE_NEAREST_DIST = 3516; 
inline constexpr auto FIFF_MNE_SOURCE_SPACE_ID = 3517;           
inline constexpr auto FIFF_MNE_SOURCE_SPACE_TYPE = 3518;         
 
inline constexpr auto FIFF_MNE_SOURCE_SPACE_NTRI = 3590;          
inline constexpr auto FIFF_MNE_SOURCE_SPACE_TRIANGLES = 3591;     
inline constexpr auto FIFF_MNE_SOURCE_SPACE_NUSE_TRI = 3592;      
inline constexpr auto FIFF_MNE_SOURCE_SPACE_USE_TRIANGLES = 3593; 
 
inline constexpr auto FIFF_MNE_SOURCE_SPACE_VOXEL_DIMS = 3596;   
inline constexpr auto FIFF_MNE_SOURCE_SPACE_INTERPOLATOR = 3597; 
inline constexpr auto FIFF_MNE_SOURCE_SPACE_MRI_FILE = 3598;     
 
inline constexpr auto FIFF_MNE_SOURCE_SPACE_DIST = 3599;       
inline constexpr auto FIFF_MNE_SOURCE_SPACE_DIST_LIMIT = 3600; 
 
/*
 * 3520... Forward solution
 */
inline constexpr auto FIFF_MNE_FORWARD_SOLUTION = 3520;
inline constexpr auto FIFF_MNE_SOURCE_ORIENTATION = 3521; 
inline constexpr auto FIFF_MNE_INCLUDED_METHODS = 3522;
inline constexpr auto FIFF_MNE_FORWARD_SOLUTION_GRAD = 3523;
 
/*
 * 3530... Covariance matrix
 */
inline constexpr auto FIFF_MNE_COV_KIND = 3530;        
inline constexpr auto FIFF_MNE_COV_DIM = 3531;         
inline constexpr auto FIFF_MNE_COV = 3532;             
inline constexpr auto FIFF_MNE_COV_DIAG = 3533;        
inline constexpr auto FIFF_MNE_COV_EIGENVALUES = 3534; 
inline constexpr auto FIFF_MNE_COV_EIGENVECTORS = 3535;
inline constexpr auto FIFF_MNE_COV_NFREE = 3536; 
 
/*
 * 3540... Inverse operator
 * We store the inverse operator as the eigenleads  eigenfields and weights
 */
inline constexpr auto FIFF_MNE_INVERSE_LEADS = 3540;               
inline constexpr auto FIFF_MNE_INVERSE_LEADS_WEIGHTED = 3546;      
inline constexpr auto FIFF_MNE_INVERSE_FIELDS = 3541;              
inline constexpr auto FIFF_MNE_INVERSE_SING = 3542;                
inline constexpr auto FIFF_MNE_INVERSE_SOURCE_UNIT = 3547;         
inline constexpr auto FIFF_MNE_PRIORS_USED = 3543;                 
inline constexpr auto FIFF_MNE_INVERSE_FULL = 3544;                
                                                                   // This matrix includes the whitening operator as well
                                                                   // The regularization is applied
inline constexpr auto FIFF_MNE_INVERSE_SOURCE_ORIENTATIONS = 3545; 
                                                                   // The source orientations must be expressed in the coordinate system
                                                                   // given by FIFF_MNE_COORD_FRAME
 
/*
 * 3550... Saved environment info
 */
inline constexpr auto FIFF_MNE_ENV_WORKING_DIR = 3550;  
inline constexpr auto FIFF_MNE_ENV_COMMAND_LINE = 3551; 
 
/*
 * 3560... Miscellaneous
 */
inline constexpr auto FIFF_MNE_PROJ_ITEM_ACTIVE = 3560;   
inline constexpr auto FIFF_MNE_EVENT_LIST = 3561;         
inline constexpr auto FIFF_MNE_EVENT_TRIGGER_MASK = 3565; 
inline constexpr auto FIFF_MNE_EVENT_COMMENTS = 3566;     
inline constexpr auto FIFF_MNE_HEMI = 3562;               
 
/*
 * 3570... Morphing maps
 */
inline constexpr auto FIFF_MNE_MORPH_MAP = 3570;      
inline constexpr auto FIFF_MNE_MORPH_MAP_FROM = 3571; 
inline constexpr auto FIFF_MNE_MORPH_MAP_TO = 3572;   
 
/*
 * 3580... CTF compensation data
 */
inline constexpr auto FIFF_MNE_CTF_COMP_KIND = 3580;       
inline constexpr auto FIFF_MNE_CTF_COMP_DATA = 3581;       
inline constexpr auto FIFF_MNE_CTF_COMP_CALIBRATED = 3582; 
inline constexpr auto FIFF_MNE_DERIVATION_DATA = 3585;     
 
/*
 * 3700... Real-Time Communication
 */
inline constexpr auto FIFF_MNE_RT_COMMAND = 3700;   
inline constexpr auto FIFF_MNE_RT_CLIENT_ID = 3701; 
 
/*
 * 3710... Real-Time Blocks
 */
inline constexpr auto FIFFB_MNE_RT_MEAS_INFO = 3710; 
 
/*
 * Fiff values associated with MNE computations
 */
inline constexpr auto FIFFV_MNE_FIXED_ORI = 1;
inline constexpr auto FIFFV_MNE_FREE_ORI = 2;
 
inline constexpr auto FIFFV_MNE_MEG = 1;
inline constexpr auto FIFFV_MNE_EEG = 2;
inline constexpr auto FIFFV_MNE_MEG_EEG = 3;
 
inline constexpr auto FIFFV_MNE_UNKNOWN_COV = 0;
inline constexpr auto FIFFV_MNE_SENSOR_COV = 1;
inline constexpr auto FIFFV_MNE_NOISE_COV = 1; 
inline constexpr auto FIFFV_MNE_SOURCE_COV = 2;
inline constexpr auto FIFFV_MNE_FMRI_PRIOR_COV = 3;
inline constexpr auto FIFFV_MNE_SIGNAL_COV = 4;       
inline constexpr auto FIFFV_MNE_DEPTH_PRIOR_COV = 5;  
inline constexpr auto FIFFV_MNE_ORIENT_PRIOR_COV = 6; 
 
/*
 * Source space types (values of FIFF_MNE_SOURCE_SPACE_TYPE)
 */
inline constexpr auto FIFFV_MNE_SPACE_UNKNOWN = -1;
inline constexpr auto FIFFV_MNE_SPACE_SURFACE = 1;
inline constexpr auto FIFFV_MNE_SPACE_VOLUME = 2;
inline constexpr auto FIFFV_MNE_SPACE_DISCRETE = 3;
 
/*
 * Covariance matrix channel classification
 */
inline constexpr auto FIFFV_MNE_COV_CH_UNKNOWN = -1; 
inline constexpr auto FIFFV_MNE_COV_CH_MEG_MAG = 0;  
inline constexpr auto FIFFV_MNE_COV_CH_MEG_GRAD = 1; 
inline constexpr auto FIFFV_MNE_COV_CH_EEG = 2;      
 
/*
 * Projection item kinds
 */
inline constexpr auto FIFFV_MNE_PROJ_ITEM_EEG_AVREF = 10;
 
/*
 * Additional coordinate frames
 */
inline constexpr auto FIFFV_MNE_COORD_TUFTS_EEG = 300;   
inline constexpr auto FIFFV_MNE_COORD_CTF_DEVICE = 1001; 
inline constexpr auto FIFFV_MNE_COORD_CTF_HEAD = 1004;   
inline constexpr auto FIFFV_MNE_COORD_MRI_VOXEL = 2001;  
inline constexpr auto FIFFV_MNE_COORD_RAS = 2002;        
inline constexpr auto FIFFV_MNE_COORD_MNI_TAL = 2003;    
inline constexpr auto FIFFV_MNE_COORD_FS_TAL_GTZ = 2004; 
inline constexpr auto FIFFV_MNE_COORD_FS_TAL_LTZ = 2005; 
inline constexpr auto FIFFV_MNE_COORD_FS_TAL = 2006;     
 
#endif // FIFF_CONSTANTS_H