Implement SphericalMesh.get_indices_at_coords#3919
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EdenRochmanSharabi wants to merge 1 commit intoopenmc-dev:developfrom
Open
Implement SphericalMesh.get_indices_at_coords#3919EdenRochmanSharabi wants to merge 1 commit intoopenmc-dev:developfrom
EdenRochmanSharabi wants to merge 1 commit intoopenmc-dev:developfrom
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Resolves the remaining work from openmc-dev#3867. Converts Cartesian (x, y, z) input to spherical (r, theta, phi) relative to the mesh origin, validates against grid bounds, and returns bin indices via np.searchsorted. Handles the degenerate r=0 case where angular coordinates are undefined. Adds comprehensive unit tests covering basic lookups, multi-bin angular grids, non-default origin, boundary values, r=0, and out-of-bounds errors for each axis.
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Summary
Implements
SphericalMesh.get_indices_at_coords, resolving the remaining workfrom #3867 (
RectilinearMeshwas already done in #3824).The method accepts Cartesian (x, y, z) coordinates, converts to spherical
(r, theta, phi) relative to
self.origin, validates against grid bounds, andreturns bin indices via
np.searchsorted. Follows the same pattern asCylindricalMesh.get_indices_at_coords.Handles the degenerate case where r=0 (theta and phi are mathematically
undefined) by defaulting both to 0.0.
Changes
openmc/mesh.py: ReplaceNotImplementedErrorstub with full implementationtests/unit_tests/test_mesh.py: Addtest_SphericalMesh_get_indices_at_coordsTests