Point Search Out-of-Bounds Tolerance Fails in Field Transfer

[Sichao25]

Point search raise errors when using constexpr fuzz = 1E-6 at high resolution during uniform grid field transfer. Changing the value to 1E-12 resolves the issue. Possible causes to be investigated includes

• 1E-6 may be too coarse
• The tolerance may be inconsistent with the mesh field tolerance used elsewhere (e.g. epsilon)

If the point search algorithm is updated, the constexpr fuzz workaround may no longer be necessary.

[jacobmerson]

@Sichao25 Do you have a specific testcase in place where this was failing that we can confirm if things are working as expected?

@matthew-mccall when we swap out the tolerances in the search, this is a case we need to be careful about.

[Sichao25]

The only test case we have that triggers this issue is the Python API example, but it requires specific mesh data to run.