flying_focal_spot¶
- odl.tomo.util.source_detector_shifts.flying_focal_spot(angle, apart, shifts)[source]¶
Flying focal spot shifts for divergent beam geometries. Shifts are defined only for grid points of angular partition. For all other angles nearest neighbor interpolation is used.
- Parameters:
- anglefloat or
array-like Angle(s) in radians describing the counter-clockwise rotation of source and detector.
- apart1-dim.
RectPartition Partition of the angle interval.
- shiftssequence of
array-like Each vectors in a sequence represent a subsequent shift relative to the default source position. Vector elements represent shifts along the following directions: det_to_src, tangent to the rotation (projected on a plane perpendicular to rotation axis), rotation axis.
- anglefloat or