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THD_timeaxis Struct Reference

#include <3ddata.h>


Data Fields

int type
int ntt
float ttorg
float ttdel
float ttdur
int units_type
int nsl
float * toff_sl
float zorg_sl
float dz_sl

Detailed Description

Struct to hold information about the time axis of a 3D+time datset.

For 3D+t datasets, there are ntt 3D times; the i-th one is centered at ttorg + ttdel*ii seconds, for ii=0..ntt-1. Also, ttdur = duration of each sample in time.

If ( nsl > 0 && toff_sl != NULL), then the data was acquired as slices, not as a 3D block. The slicing direction must be the dataset (not Dicom) z-axis. The extra offset for the data at z is given by computing isl = (z - zorg_sl) / dz_sl + 0.5; the extra offset is then toff_sl[isl]. Note that dz_sl might be different from the dataxes zzdel because the dataset might actually be made up of duplicated slices (see program abut.c).

All this is computed using the routine THD_timeof().

When transformed, all the slice stuff will be ignored. That's because the warped dataset z-direction will not be the same as the original dataset's z-direction.

Definition at line 1386 of file 3ddata.h.

Field Documentation

float THD_timeaxis::dz_sl
 

z-coordinate spacing for slice offsets

Definition at line 1398 of file 3ddata.h.

Referenced by adwarp_follower_dataset(), AFNI_follower_dataset(), EDIT_dset_items(), get_time(), main(), T3D_save_file_CB(), THD_3dim_from_block(), THD_dataset_info(), THD_set_dataset_attributes(), and THD_timeof().

int THD_timeaxis::nsl
 

Number of slice-dependent time offsets

Definition at line 1395 of file 3ddata.h.

Referenced by adwarp_follower_dataset(), AFNI_follower_dataset(), EDIT_dset_items(), EDIT_empty_copy(), main(), T3D_save_file_CB(), terminate_program(), THD_3dim_from_block(), THD_dataset_info(), THD_dataset_tshift(), THD_set_dataset_attributes(), THD_timeof(), THD_timeof_slice(), THD_timeof_vox(), THD_zeropad(), and VL_command_line().

int THD_timeaxis::ntt
 

Number of time points

Definition at line 1388 of file 3ddata.h.

Referenced by AFNI_startup_timeout_CB(), EDIT_dset_items(), T3D_check_outliers(), T3D_save_file_CB(), T3D_swap_CB(), THD_3dim_from_block(), THD_set_dataset_attributes(), and THD_setup_mastery().

float* THD_timeaxis::toff_sl
 

toff_sl[i] is time offset for slice #1

Definition at line 1396 of file 3ddata.h.

Referenced by adwarp_follower_dataset(), AFNI_follower_dataset(), EDIT_dset_items(), EDIT_empty_copy(), main(), populate_nifti_image(), T3D_save_file_CB(), THD_3dim_from_block(), THD_dataset_info(), THD_dataset_tshift(), THD_delete_3dim_dataset(), THD_set_dataset_attributes(), THD_setup_mastery(), THD_timeof(), THD_timeof_slice(), THD_timeof_vox(), and THD_zeropad().

float THD_timeaxis::ttdel
 

Fondly known as TR

Definition at line 1390 of file 3ddata.h.

Referenced by cubic_spline(), EDIT_dset_items(), FD_brick_to_series(), main(), MAKER_4D_to_typed_fbuc(), MAKER_4D_to_typed_fim(), MAKER_4D_to_typed_fith(), PLUTO_4D_to_nothing(), populate_nifti_image(), PRIC_main(), RIC_CalcCoeffAB(), RIC_CorrectDataset(), T3D_save_file_CB(), THD_3dim_from_block(), THD_dataset_info(), THD_extract_many_series(), THD_extract_series(), THD_set_dataset_attributes(), THD_timeof(), THD_timeof_slice(), and THD_timeof_vox().

float THD_timeaxis::ttdur
 

Duration of image acquisition (usually not known)

Definition at line 1391 of file 3ddata.h.

Referenced by EDIT_dset_items(), T3D_save_file_CB(), THD_3dim_from_block(), and THD_set_dataset_attributes().

float THD_timeaxis::ttorg
 

Time origin (usually 0)

Definition at line 1389 of file 3ddata.h.

Referenced by EDIT_dset_items(), main(), T3D_save_file_CB(), THD_3dim_from_block(), THD_dataset_info(), THD_set_dataset_attributes(), THD_timeof(), THD_timeof_slice(), and THD_timeof_vox().

int THD_timeaxis::type
 

TIMEAXIS_TYPE

Definition at line 1387 of file 3ddata.h.

Referenced by EDIT_dset_items(), T3D_save_file_CB(), and THD_3dim_from_block().

int THD_timeaxis::units_type
 

one of the UNITS_ codes

Definition at line 1393 of file 3ddata.h.

Referenced by EDIT_dset_items(), FD_brick_to_series(), get_time(), main(), PRIC_main(), RIC_CalcCoeffAB(), RIC_CorrectDataset(), T3D_save_file_CB(), THD_3dim_from_block(), THD_dataset_info(), THD_dataset_tshift(), THD_extract_many_series(), THD_extract_series(), and THD_set_dataset_attributes().

float THD_timeaxis::zorg_sl
 

z-coordinate origin for slice offsets

Definition at line 1397 of file 3ddata.h.

Referenced by adwarp_follower_dataset(), AFNI_follower_dataset(), EDIT_dset_items(), get_time(), main(), T3D_save_file_CB(), THD_3dim_from_block(), THD_set_dataset_attributes(), THD_timeof(), and THD_zeropad().

The documentation for this struct was generated from the following file:
 
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