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| typedef struct { /*!< Image storage struct **/
int ndim ; /*!< last dimension greater than 1 (1..7) */
int nx ; /*!< dimensions of grid array */
int ny ; /*!< dimensions of grid array */
int nz ; /*!< dimensions of grid array */
int nt ; /*!< dimensions of grid array */
int nu ; /*!< dimensions of grid array */
int nv ; /*!< dimensions of grid array */
int nw ; /*!< dimensions of grid array */
int dim[8] ; /*!< dim[0]=ndim, dim[1]=nx, etc. */
int nvox ; /*!< number of voxels = nx*ny*nz*...*nw */
int nbyper ; /*!< bytes per voxel, matches datatype */
int datatype ; /*!< type of data in voxels: DT_* code */
float dx ; /*!< grid spacings */
float dy ; /*!< grid spacings */
float dz ; /*!< grid spacings */
float dt ; /*!< grid spacings */
float du ; /*!< grid spacings */
float dv ; /*!< grid spacings */
float dw ; /*!< grid spacings */
float pixdim[8] ; /*!< pixdim[1]=dx, etc. */
float scl_slope ; /*!< scaling parameter - slope */
float scl_inter ; /*!< scaling parameter - intercept */
float cal_min ; /*!< calibration parameter, minimum */
float cal_max ; /*!< calibration parameter, maximum */
int qform_code ; /*!< codes for (x,y,z) space meaning */
int sform_code ; /*!< codes for (x,y,z) space meaning */
int freq_dim ; /*!< indexes (1,2,3, or 0) for MRI */
int phase_dim ; /*!< directions in dim[]/pixdim[] */
int slice_dim ; /*!< directions in dim[]/pixdim[] */
int slice_code ; /*!< code for slice timing pattern */
int slice_start ; /*!< index for start of slices */
int slice_end ; /*!< index for end of slices */
float slice_duration ; /*!< time between individual slices */
/*! quaternion transform parameters
[when writing a dataset, these are used for qform, NOT qto_xyz] */
float quatern_b , quatern_c , quatern_d ,
qoffset_x , qoffset_y , qoffset_z ,
qfac ;
mat44 qto_xyz ; /*!< qform: transform (i,j,k) to (x,y,z) */
mat44 qto_ijk ; /*!< qform: transform (x,y,z) to (i,j,k) */
mat44 sto_xyz ; /*!< sform: transform (i,j,k) to (x,y,z) */
mat44 sto_ijk ; /*!< sform: transform (x,y,z) to (i,j,k) */
float toffset ; /*!< time coordinate offset */
int xyz_units ; /*!< dx,dy,dz units: NIFTI_UNITS_* code */
int time_units ; /*!< dt units: NIFTI_UNITS_* code */
int nifti_type ; /*!< 0==ANALYZE, 1==NIFTI-1 (1 file),
2==NIFTI-1 (2 files),
3==NIFTI-ASCII (1 file) */
int intent_code ; /*!< statistic type (or something) */
float intent_p1 ; /*!< intent parameters */
float intent_p2 ; /*!< intent parameters */
float intent_p3 ; /*!< intent parameters */
char intent_name[16] ; /*!< optional description of intent data */
char descrip[80] ; /*!< optional text to describe dataset */
char aux_file[24] ; /*!< auxiliary filename */
char *fname ; /*!< header filename (.hdr or .nii) */
char *iname ; /*!< image filename (.img or .nii) */
int iname_offset ; /*!< offset into iname where data starts */
int swapsize ; /*!< swap unit in image data (might be 0) */
int byteorder ; /*!< byte order on disk (MSB_ or LSB_FIRST) */
void *data ; /*!< pointer to data: nbyper*nvox bytes */
int num_ext ; /*!< number of extensions in ext_list */
nifti1_extension * ext_list ; /*!< array of extension structs (with data) */
} nifti_image ; |
