Read true time step data from individual time steps.
Returns: | steps : array
times : array
nts : array
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The abstract class for importing and exporting meshes.
Read the docstring of the Mesh() class. Basically all you need to do is to implement the read() method:
def read(self, mesh, **kwargs):
nodes = ...
conns = ...
mat_ids = ...
descs = ...
mesh._set_data(nodes, conns, mat_ids, descs)
return mesh
See the Mesh class’ docstring how the nodes, conns, mat_ids and descs should look like. You just need to read them from your specific format from disk.
To write a mesh to disk, just implement the write() method and use the information from the mesh instance (e.g. nodes, conns, mat_ids and descs) to construct your specific format.
The methods read_dimension(), read_bounding_box() should be implemented in subclasses, as it is often possible to get that kind of information without reading the whole mesh file.
Optionally, subclasses can implement read_data() to read also computation results. This concerns mainly the subclasses with implemented write() supporting the ‘out’ kwarg.
The default implementation od read_last_step() just returns 0. It should be reimplemented in subclasses capable of storing several steps.
Create a MeshIO instance according to the kind of filename.
Parameters: | filename : str, function or MeshIO subclass instance
prefix_dir : str
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Returns: | io : MeshIO subclass instance
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Create a MeshIO instance for file filename with forced format.
Parameters: | filename : str
format : str
writable : bool
prefix_dir : str
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Returns: | io : MeshIO subclass instance
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Reads t.1.ele, returns a list of elements.
Example:
>>> elements, regions = self.getele("t.1.ele")
>>> elements
[(20, 154, 122, 258), (86, 186, 134, 238), (15, 309, 170, 310), (146,
229, 145, 285), (206, 207, 125, 211), (99, 193, 39, 194), (185, 197,
158, 225), (53, 76, 74, 6), (19, 138, 129, 313), (23, 60, 47, 96),
(119, 321, 1, 329), (188, 296, 122, 322), (30, 255, 177, 256), ...]
>>> regions
{100: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36,
37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 7, ...],
...}
Reads t.1.nodes, returns a list of nodes.
Example:
>>> self.getnodes("t.1.node")
[(0.0, 0.0, 0.0), (4.0, 0.0, 0.0), (0.0, 4.0, 0.0), (-4.0, 0.0, 0.0),
(0.0, 0.0, 4.0), (0.0, -4.0, 0.0), (0.0, -0.0, -4.0), (-2.0, 0.0,
-2.0), (-2.0, 2.0, 0.0), (0.0, 2.0, -2.0), (0.0, -2.0, -2.0), (2.0,
0.0, -2.0), (2.0, 2.0, 0.0), ... ]
Special MeshIO subclass that enables reading and writing a mesh using a user-supplied function.
Convert complex values in the output dictionary out_in to pairs of real and imaginary parts.
Guess the format of filename, candidates are in formats.
Join groups of the same element type.
Sort by mat_id within a group, preserve order.
Sort by mat_id within a group, preserve order.