Geometry utilities cast to single, casts integers to single too

[MargaretDuff]

This bit of code:

TIGRE/Python/tigre/utilities/geometry.py

Lines 119 to 130 in 989615d

	def cast_to_single(self):
	"""
	Casts all number values in current instance to single prevision floating point types.
	:return: None
	"""
	for attrib in self.__dict__:
	if getattr(self, attrib) is not None:
	try:
	setattr(self, attrib, np.float32(getattr(self, attrib)))
	except ValueError:
	pass

Expected Behavior

Expect anything in double precision is cast to single precision

Actual Behavior

Casts everything to single precision including integers

Code to reproduce the problem (If applicable)

This caused an issue when I did

self.tigre_geom.cast_to_single()

img, qual= sart(
                proj=self.tigre_projections,
                geo=self.tigre_geom,
                angles=self.tigre_angles,
                init=self.tigre_initial,
                niter=self.niter,
                gpuids=self.gpuids,
                **self.kwargs

because sart allocates internally based on nVoxel in the geometry which now isn't an integer.

Specifications

• MATLAB/python version: python
• OS: linux
• CUDA version: 12.9

[AnderBiguri]

Thanks for the report! To be honest, I can't remember why that function exist, I am not sure its used explicitly anywhere. Fix should be easy (check if double), Will fix when I have time (or make a PR :) )

[MargaretDuff]

Thanks Ander - We have it in CIL and can't remember why we use it either :)