sfepy.discrete.fem.domain module
Computational domain, consisting of the mesh and regions.
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class sfepy.discrete.fem.domain.FEDomain(name, mesh, verbose=False, **kwargs)[source]
Domain is divided into groups, whose purpose is to have homogeneous
data shapes.
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clear_surface_groups()[source]
Remove surface group data.
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create_surface_group(region)[source]
Create a new surface group corresponding to region if it does
not exist yet.
Notes
Surface groups define surface facet connectivity that is needed
for sfepy.discrete.fem.mappings.SurfaceMapping.
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fix_element_orientation()[source]
Ensure element vertices ordering giving positive cell volumes.
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get_conn(ret_gel=False)[source]
Get the cell-vertex connectivity and, if ret_gel is True, also the
corresponding reference geometry element.
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get_diameter()[source]
Return the diameter of the domain.
Notes
The diameter corresponds to the Friedrichs constant.
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get_element_diameters(cells, vg, mode, square=True)[source]
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get_mesh_bounding_box()[source]
Return the bounding box of the underlying mesh.
Returns: | bbox : ndarray (2, dim)
The bounding box with min. values in the first row and max. values
in the second row.
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get_mesh_coors(actual=False)[source]
Return the coordinates of the underlying mesh vertices.
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refine()[source]
Uniformly refine the domain mesh.
Returns: | domain : FEDomain instance
The new domain with the refined mesh.
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Notes
Works only for meshes with single element type! Does not
preserve node groups!