def linear_ct_to_cplex(linear_ct):
""" Converst a DOcplex linear constraint to CPLEX Python data
:param linear_ct: a DOcplex linear constraint.
:return: a 3-tuple containing elements representing the constraint in CPLEX-Python
- a list of two lists, indices and coefficients , representing the linear part
- a floating point number , the "right hand side" or rhs
- a one-letter string (possible values are: 'L', 'E', 'G') representing the sense of the constraint.
Example:
Assuming variable X has index 1, the constraint (2X <= 7) will be converted to
ct = 2 * X <= 7
linear_ct_cplex(ct)
>>> [[1], [2.0]], 7.0, 'L'
"""
cpx_lhs = CplexEngine.linear_ct_to_cplex(linear_ct=linear_ct)
cpx_rhs = linear_ct.cplex_num_rhs()
cpx_sense = linear_ct.sense.cplex_code
return cpx_lhs, cpx_sense, cpx_rhs
def linear_ct_to_cplex(linear_ct):
cpx_lhs = CplexEngine.linear_ct_to_cplex(linear_ct=linear_ct)
cpx_rhs = linear_ct.cplex_num_rhs()
cpx_sense = linear_ct.sense.cplex_code
return cpx_lhs, cpx_sense, cpx_rhs