Пример #1
0
 def canonical_form(self, compute_values=True):
     """Build a canonical representation of the body of
     this constraints"""
     from pyomo.repn.standard_repn import \
         StandardRepn
     variables = []
     coefficients = []
     constant = 0
     for v, c in self.terms:
         if v.is_expression_type():
             v = v.expr
         if not v.fixed:
             variables.append(v)
             if compute_values:
                 coefficients.append(value(c))
             else:
                 coefficients.append(c)
         else:
             if compute_values:
                 constant += value(c) * v()
             else:
                 constant += c * v
     repn = StandardRepn()
     repn.linear_vars = tuple(variables)
     repn.linear_coefs = tuple(coefficients)
     repn.constant = constant
     return repn
Пример #2
0
    def canonical_form(self, compute_values=True):
        """Build a canonical representation of the body of
        this constraints"""
        comp = self.parent_component()
        index = self._index
        data = comp._A_data
        indices = comp._A_indices
        indptr = comp._A_indptr
        x = comp._x

        variables = []
        coefficients = []
        constant = 0
        for p in xrange(indptr[index], indptr[index + 1]):
            v = x[indices[p]]
            c = data[p]
            if not v.fixed:
                variables.append(v)
                if compute_values:
                    coefficients.append(value(c))
                else:
                    coefficients.append(c)
            else:
                if compute_values:
                    constant += value(c) * v.value
                else:
                    constant += c * v
        repn = StandardRepn()
        repn.linear_vars = tuple(variables)
        repn.linear_coefs = tuple(coefficients)
        repn.constant = constant
        return repn
Пример #3
0
 def canonical_form(self, compute_values=True):
     """Build a canonical representation of the body of
     this constraints"""
     from pyomo.repn.standard_repn import \
         StandardRepn
     variables = []
     coefficients = []
     constant = 0
     for v, c in self.terms:
         if v.is_expression_type():
             v = v.expr
         if not v.fixed:
             variables.append(v)
             if compute_values:
                 coefficients.append(value(c))
             else:
                 coefficients.append(c)
         else:
             if compute_values:
                 constant += value(c) * v()
             else:
                 constant += c * v
     repn = StandardRepn()
     repn.linear_vars = tuple(variables)
     repn.linear_coefs = tuple(coefficients)
     repn.constant = constant
     return repn
 def canonical_form(self, compute_values=True):
     """Build a canonical representation of the body of
     this constraints"""
     from pyomo.repn.standard_repn import StandardRepn
     variables = []
     coefficients = []
     constant = 0
     for v, c in self.terms:
         # we call float to get rid of the numpy type
         c = float(c)
         if not v.fixed:
             variables.append(v)
             coefficients.append(c)
         else:
             if compute_values:
                 constant += c * v()
             else:
                 constant += c * v
     repn = StandardRepn()
     repn.linear_vars = tuple(variables)
     repn.linear_coefs = tuple(coefficients)
     repn.constant = constant
     return repn
Пример #5
0
 def canonical_form(self, compute_values=True):
     """Build a canonical representation of the body of
     this constraints"""
     from pyomo.repn.standard_repn import StandardRepn
     variables = []
     coefficients = []
     constant = 0
     for v, c in self.terms:
         # we call float to get rid of the numpy type
         c = float(c)
         if not v.fixed:
             variables.append(v)
             coefficients.append(c)
         else:
             if compute_values:
                 constant += c * v()
             else:
                 constant += c * v
     repn = StandardRepn()
     repn.linear_vars = tuple(variables)
     repn.linear_coefs = tuple(coefficients)
     repn.constant = constant
     return repn