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Added option to meshtool to apply variational smoother #4135

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Merged
roystgnr merged 1 commit into from
Apr 10, 2025
Merged

Added option to meshtool to apply variational smoother #4135

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13 changes: 13 additions & 0 deletions src/apps/meshtool.C
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,7 @@
#include "libmesh/string_to_enum.h"
#include "libmesh/enum_elem_quality.h"
#include "libmesh/getpot.h"
#include <libmesh/mesh_smoother_vsmoother.h>

using namespace libMesh;

Expand All @@ -62,6 +63,7 @@ int main (int argc, char ** argv)
LibMeshInit init(argc, argv);

unsigned int n_subdomains = 1;
bool vsmooth = false;
unsigned int n_rsteps = 0;
Real simplex_refine = 0.;
double dist_fact = 0.;
Expand Down Expand Up @@ -142,6 +144,10 @@ int main (int argc, char ** argv)
n_subdomains = cast_int<unsigned int>(tmp);
}

// Whether to apply variational smoother
if (command_line.search(1, "-V"))
vsmooth = true;

// Should we call all_tri()?
if (command_line.search(1, "-t"))
triangulate = true;
Expand Down Expand Up @@ -513,6 +519,12 @@ int main (int argc, char ** argv)
if (n_subdomains > 1)
mesh.partition(n_subdomains);

// Possibly smooth the mesh
if (vsmooth)
{
VariationalMeshSmoother vsmoother(mesh);
vsmoother.smooth();
}

// Possibly write the mesh
if (output_names.size())
Expand Down Expand Up @@ -589,6 +601,7 @@ void usage(const std::string & prog_name)
<< " -D <factor> Randomly move interior nodes by D*hmin\n"
<< " -h Print help menu\n"
<< " -p <count> Partition into <count> subdomains\n"
<< " -V Apply the variational mesh smoother\n"
#ifdef LIBMESH_ENABLE_AMR
<< " -r <count> Uniformly refine <count> times\n"
#endif
Expand Down