pre-processing
NutilsDeprecationWarning: function.norm2 is deprecated; use numpy.linalg.norm instead
In /usr/local/lib/python3.11/dist-packages/nutils/function.py:1226
Inclusion at [1.25 1.25] with radius 0.59.
NutilsDeprecationWarning: function.min is deprecated; use numpy.minimum instead
In /usr/local/lib/python3.11/dist-packages/nutils/function.py:1226
Inclusion at (0, 0) with radius 0.52.
Inclusion at (0, 2.5) with radius 0.41.
Inclusion at (2.5, 0) with radius 0.69.
Inclusion at (2.5, 2.5) with radius 0.67.
porosity: 0.6541