Generate cdd .ext
/ .ine
file format¶
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sage.geometry.polyhedron.cdd_file_format.
cdd_Hrepresentation
(cdd_type, ieqs, eqns)¶ Return a string containing the H-representation in cddlib’s ine format.
EXAMPLES:
sage: from sage.geometry.polyhedron.cdd_file_format import cdd_Hrepresentation sage: cdd_Hrepresentation('rational', None, [[0,1]]) 'H-representation\nlinearity 1 1\nbegin\n 1 2 rational\n 0 1\nend\n'
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sage.geometry.polyhedron.cdd_file_format.
cdd_Vrepresentation
(cdd_type, vertices, rays, lines)¶ Return a string containing the V-representation in cddlib’s ext format.
NOTE:
If there is no vertex given, then the origin will be implicitly added. You cannot write the empty V-representation (which cdd would refuse to process).
EXAMPLES:
sage: from sage.geometry.polyhedron.cdd_file_format import cdd_Vrepresentation sage: print cdd_Vrepresentation('rational', [[0,0]], [[1,0]], [[0,1]]) V-representation linearity 1 1 begin 3 3 rational 0 0 1 0 1 0 1 0 0 end