Quality check error & Exception handling

Description

Error: MMG5_minQualCheck: too bad quality for the worst element: (elt 15105 -> 0.000000e+00)

Traceback (most recent call last):
File "C:\Users\micha\miniconda3\envs\svv\lib\site-packages\svv\utils\remeshing\remesh.py", line 498, in remesh_surface
subprocess.check_call(executable_list)
File "C:\Users\micha\miniconda3\envs\svv\lib\subprocess.py", line 373, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['C:\Users\micha\miniconda3\envs\svv\lib\site-packages\svv\utils\remeshing\Windows\mmgs_O3.exe', 'tmp.mesh', '-v', '1', '-hsiz', '0.0009522198054603944']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "", line 1, in
File "C:\Users\micha\miniconda3\envs\svv\lib\site-packages\svv\simulation\simulation.py", line 95, in build_meshes
fluid_surface_mesh = self.synthetic_object.export_solid(watertight=True)
File "C:\Users\micha\miniconda3\envs\svv\lib\site-packages\svv\tree\tree.py", line 296, in export_solid
model = build_watertight_solid(self)
File "C:\Users\micha\miniconda3\envs\svv\lib\site-packages\svv\tree\export\export_solid.py", line 406, in build_watertight_solid
model = union_tubes(tubes, lines, cap_resolution=cap_resolution)
File "C:\Users\micha\miniconda3\envs\svv\lib\site-packages\svv\tree\export\export_solid.py", line 374, in union_tubes
model = remesh_surface(model, hsiz=hsize)
File "C:\Users\micha\miniconda3\envs\svv\lib\site-packages\svv\utils\remeshing\remesh.py", line 501, in remesh_surface
subprocess.check_call(executable_list)
File "C:\Users\micha\miniconda3\envs\svv\lib\subprocess.py", line 373, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['C:\Users\micha\miniconda3\envs\svv\lib\site-packages\svv\utils\remeshing\Windows\mmgs_O3.exe', 'tmp.mesh', '-v', '1', '-hsiz', '0.0009522198054603944']' returned non-zero exit status 1.

Reproduction

import pyvista as pv
from svv.domain.domain import Domain
from svv.tree.tree import Tree

mesh = pv.read('sample_baffle_extrude_allometric2.stl').triangulate()
baffle = Domain(mesh)
baffle.create()
baffle.solve()
baffle.build()

t = Tree()
t.set_domain(baffle)
t.set_root()
t.n_add(10)

from svv.simulation.simulation import Simulation

sim = Simulation(t)
sim.build_meshes(fluid=True,tissue=True,boundary_layer=False)

Expected behavior

generate mesh files

Additional context

No response

Code of Conduct

• I agree to follow this project's Code of Conduct and Contributing Guidelines

Start by running the supplied PyVista reproduction and trace the failure through svv/simulation/simulation.py, svv/tree/export/export_solid.py, and svv/utils/remeshing/remesh.py. Inspect how the mmgs executable is invoked and how its failure is handled. Done means the reproduction generates the expected mesh files without the reported exception.