[Gmsh] Remeshing STL to Hexahedra

[Ted Kord]

Hi

I'm trying to remesh an STL geometry to hexas. I get the error below. Is
the error fixable?

Info    : Running './gmsh hexa_mesh.geo -3' [1 node(s), max. 1 thread(s)]
Info    : Started on Wed Nov 16 19:49:16 2011
Info    : Reading '/Users/tedkord/hexa_mesh.geo'...
Info    : Reading '/Users/tedkord/nastran_mesh.stl'...
Info    : 68884 facets in solid 0
Info    : Done reading '/Users/tedkord/nastran_mesh.stl'
Info    : Creating topology from mesh...
Info    : Removing duplicate mesh vertices...
Info    : No duplicate vertices found
Info    : Done creating topology from mesh (0.759913 s)
Info    : Done reading '/Users/tedkord/hexa_mesh.geo'
Info    : Meshing 1D...
Info    : Done meshing 1D (6e-06 s)
Info    : Meshing 2D...
Info    : Meshing surface 200 (Compound surface, MeshAdapt)
Warning : Wrong topology: Genus=-14, Nb boundaries=16, AR=22.3097
Info    : -----------------------------------------------------------
Info    : --- Split surface 200 in 2 parts with Multilevel Mesh partitioner
Info    : Building graph...
Info    : Partitioning graph...
Info    : Launching Chaco graph partitioner
Info    : Done partitioning graph
Info    : Mesh partition: level (1-0)  is ZERO-GENUS (AR=34 NB=3) --->
LAPLACIAN partition 2 parts
Info    : Level (0-0): 0 connected small regions
Info    : *** Mesh partition: level (2-0) is ZERO-GENUS (AR=1, NB=1)
Info    : *** Mesh partition: level (2-1) is ZERO-GENUS (AR=2, NB=1)
Info    : *** Mesh partition: level (1-1) is ZERO-GENUS (AR=1, NB=1)
Info    : *** Mesh partition: level (1-2) is ZERO-GENUS (AR=2, NB=1)
Info    : *** Mesh partition: level (1-3) is ZERO-GENUS (AR=1, NB=1)
Info    : *** Mesh partition: level (1-4) is ZERO-GENUS (AR=2, NB=1)
Info    : *** Mesh partition: level (1-5) is ZERO-GENUS (AR=2, NB=1)
Info    : *** Mesh partition: level (1-6) is ZERO-GENUS (AR=2, NB=1)
Info    : *** Mesh partition: level (1-7) is ZERO-GENUS (AR=2, NB=1)
Error   : Genus partition is negative G=-8!


-- 
Many thanks,

Theodore K
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