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Use signed distance instead of imp. func when computing distance to EB. #2682

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Jan 13, 2022
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Use signed distance instead of imp. func when computing distance to EB. #2682

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17 changes: 5 additions & 12 deletions Source/EmbeddedBoundary/WarpXInitEB.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -412,17 +412,10 @@ WarpX::ComputeDistanceToEB () {
#ifdef AMREX_USE_EB
BL_PROFILE("ComputeDistanceToEB");

amrex::ParmParse pp_warpx("warpx");
std::string impf;
pp_warpx.query("eb_implicit_function", impf);
if (! impf.empty()) {
auto eb_if_parser = makeParser(impf, {"x", "y", "z"});
ParserIF pif(eb_if_parser.compile<3>());
auto gshop = amrex::EB2::makeShop(pif);
amrex::FillImpFunc(*m_distance_to_eb[maxLevel()], gshop, Geom(maxLevel()));
m_distance_to_eb[maxLevel()]->negate(m_distance_to_eb[maxLevel()]->nGrow()); // signed distance f = - imp. f.
} else {
m_distance_to_eb[maxLevel()]->setVal(100.0); // some positive value
}
const amrex::EB2::IndexSpace& eb_is = amrex::EB2::IndexSpace::top();
const amrex::EB2::Level& eb_level = eb_is.getLevel(Geom(maxLevel()));
auto const eb_fact = fieldEBFactory(maxLevel());

amrex::FillSignedDistance(*m_distance_to_eb[maxLevel()], eb_level, eb_fact, 1);
#endif
}