feat(meshGeneration): simple spherical mesh generation script

utils/meshGeneration/generateMesh.py

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+import pygmsh
+import meshio
+
+import argparse
+
+def generate_spherical_mesh(radius=1, meshSize=0.1):
+    with pygmsh.geo.Geometry() as geo:
+        # Create a spherical (ball) geometry centered at (0,0,0)
+        sphere = geo.add_ball([0, 0, 0], radius)
+        # Generate a 2D mesh (i.e. surface mesh) of the sphere
+        myMesh = geo.generate_mesh(dim=2)
+    return myMesh
+
+def write_mfem_mesh(meshData, filename):
+    meshio.write(filename, meshData, file_format='netgen')
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description='Generate a spherical mesh')
+    parser.add_argument('--radius', type=float, default=1.0, help='Radius of the sphere')
+    parser.add_argument('--meshSize', type=float, default=0.1, help='Mesh size')
+    args = parser.parse_args()
+
+    meshData = generate_spherical_mesh(args.radius, args.meshSize)
+    write_mfem_mesh(meshData, 'sphere.mesh')