def both_roles_constraint(cls, v1, v2, v3):
lhs = flipy.LpExpression(expression={v1: 1, v2: 1})
rhs = flipy.LpExpression(expression={v3: 1}, constant=1)
return flipy.LpConstraint(lhs,
'leq',
rhs,
name=f'_C_BothRolesPenalty_{cls._cons_id()}')
def constraint_sum_geq_weight_1(cls,
lp_var_list: List[LpVariable],
value: int,
typ='default'):
lhs = cls.sum_expr_weight_1(lp_var_list)
rhs = cls.const_expr(value)
return flipy.LpConstraint(lhs,
'geq',
rhs,
name=f'_C_{typ}_{cls._cons_id()}')
def constraint_sum_geq_weight_decrease(cls,
lp_var_list: List[LpVariable],
value: int,
typ='default'):
lhs = cls.sum_expr_weight(lp_var_list, False) # false means decrease
rhs = cls.const_expr(value)
return flipy.LpConstraint(lhs,
'leq',
rhs,
name=f'_C_{typ}_{cls._cons_id()}')
def constraint_vars_eq(cls,
v1: List[LpVariable],
v2: List[LpVariable],
typ='default'):
lhs = cls.sum_expr_weight_1(v1)
rhs = cls.sum_expr_weight_1(v2)
return flipy.LpConstraint(lhs,
'eq',
rhs,
name=f'_C_{typ}_{cls._cons_id()}')
def constraint_sum_eq(cls, lp_var_list: List[LpVariable], value: int):
lhs = cls.sum_expr(lp_var_list)
rhs = cls.const_expr(value)
return flipy.LpConstraint(lhs, 'eq', rhs, name=f'_C{cls._cons_id()}')