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feat(topology): vacuum coordinate and multi block

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Two major changes in this version. First stroid now embeds a vacuum coordinate as part of its StroidMesh file (this is a packed set of mfem meshes and GridFunction). This is a logical coordinate from 0 at the stellar surface to 1 at the mesh surface / compactified infinity which can be used by consumers to much more stablly infer position in the vacuum region. Second, there is a new topology backend, multi_block, which has been made the default. See the readme for more information but the basic jist is that multi_block addes 6 transition blocks onto the edge of the core domain. This allows for a much more well conditioned transition from the internal cartesien region to the external spherical region. The mesh conditioning improves by roughly a factor of 1000 for the same refinement level when compared to the legacy topology. The legacy topology is maintained as a option if core_mapping is set to spherified in the config.
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Emily Boudreaux
2026-09-09 08:11:08 -04:00
parent db727ebd7b
commit a5905e5fed
27 changed files with 1693 additions and 183 deletions
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tools/meson.build
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@@ -1 +1,4 @@
executable('stroid', 'stroid.cpp', dependencies: [stroid_dep, cli11_dep, magic_enum_dep], install: true)
# Opt-in diagnostic driver; deliberately not part of the installed API/tools.
executable('geometry_quality_experiment', 'geometry_quality_experiment.cpp', dependencies: [stroid_dep, cli11_dep], build_by_default: false, install: false)