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Improve check for facet->cell connectivity #3281

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merged 3 commits into from
Jun 26, 2024
Merged

Improve check for facet->cell connectivity #3281

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chrisrichardson Jun 25, 2024
634845b
Merge branch 'main' into chris/ext-facet-indices-check
chrisrichardson Jun 26, 2024
d128cf3
Update utils.cpp
chrisrichardson Jun 26, 2024
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13 changes: 7 additions & 6 deletions cpp/dolfinx/mesh/utils.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -58,14 +58,15 @@ mesh::extract_topology(CellType cell_type, const fem::ElementDofLayout& layout,
std::vector<std::int32_t> mesh::exterior_facet_indices(const Topology& topology)
{
const int tdim = topology.dim();
auto facet_map = topology.index_map(tdim - 1);
if (!facet_map)
throw std::runtime_error("Facets have not been computed.");

auto f_to_c = topology.connectivity(tdim - 1, tdim);
if (!f_to_c)
{
throw std::runtime_error(
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"Facet to cell connectivity has not been computed.");
}
// Find all owned facets (not ghost) with only one attached cell
auto facet_map = topology.index_map(tdim - 1);
const int num_facets = facet_map->size_local();
auto f_to_c = topology.connectivity(tdim - 1, tdim);
assert(f_to_c);
std::vector<std::int32_t> facets;
for (std::int32_t f = 0; f < num_facets; ++f)
{
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