Relax conditions when interpolating between frames and time of flight (…

…#701) * Relax conditions when creating time of flight interpolators to allow time of flight frames to start from zero.
cctbx · Mar 5, 2024 · 7964d4b · 7964d4b
1 parent 152fdb8
commit 7964d4b
Show file tree

Hide file tree

Showing 2 changed files with 5 additions and 4 deletions.
diff --git a/newsfragments/701.misc b/newsfragments/701.misc
@@ -0,0 +1 @@
+Relax conditions when creating time of flight interpolators to allow time of flight frames to start from zero.
diff --git a/src/dxtbx/model/tof_helpers.py b/src/dxtbx/model/tof_helpers.py
@@ -26,8 +26,8 @@ def frame_to_tof_interpolator(frames: List[float], tof: List[float]) -> interp1d
  ToF can vary nonlinearly with frame number.
  A cubic spline is used to better account for these cases.
  """
- assert min(frames) > 0
- assert min(tof) > 0
+ assert min(frames) >= 0
+ assert min(tof) >= 0
  assert len(frames) == len(tof)
  assert all(i < j for i, j in zip(frames, frames[1:]))
  assert all(i < j for i, j in zip(tof, tof[1:]))
@@ -40,8 +40,8 @@ def tof_to_frame_interpolator(tof: List[float], frames: List[float]) -> interp1d
  ToF can vary nonlinearly with frame number.
  A cubic spline is used to better account for these cases.
  """
- assert min(frames) > 0
- assert min(tof) > 0
+ assert min(frames) >= 0
+ assert min(tof) >= 0
  assert len(frames) == len(tof)
  assert all(i < j for i, j in zip(frames, frames[1:]))
  assert all(i < j for i, j in zip(tof, tof[1:]))