Class RPGBuilder::DurationExpr

Nested Relationships

This class is a nested type of Class RPGBuilder.

Class Documentation

class DurationExpr

A class defining a single duration constraint, in LNF.

Public Functions

inline DurationExpr()
inline DurationExpr(const double &d)

Create a duration expression, with unknown operator and empty weights and variables.

Parameters:

d – The constant term for the duration expression

double minOf(const vector<double> &minVars, const vector<double> &maxVars)

Evaluate the minimum possible value that satisfies this duration expression, given the provided lower- and upper-bounds on the values of the task numeric variables.

Parameters:

  • minVars – Minimum values of the task variables

  • maxvars – Maximum values of the task variables

Returns:

The lowest permissible duration, according to this duration expression.

double maxOf(const vector<double> &minVars, const vector<double> &maxVars)

Evaluate the maximum possible value that satisfies this duration expression, given the provided lower- and upper-bounds on the values of the task numeric variables.

Parameters:

  • minVars – Minimum values of the task variables

  • maxvars – Maximum values of the task variables

Returns:

The greatest permissible duration, according to this duration expression.

Public Members

vector<double> weights

The weights of the variables in the duration expression

vector<int> variables

The IDs of the variables in the duration expression.

See also

RPGBuilder::getPNE

VAL::comparison_op op

The comparison operator for this duration expression. Is one of:

  • VAL::E_GREATEQ for (>= ?duration ...)

  • VAL::E_GREATER for (> ?duration ...)

  • VAL::E_EQUALS for (= ?duration ...)

  • VAL::E_LESS for (< ?duration ...)

  • VAL::E_LESSEQ for (<= ?duration ...)

double constant

The constant term for the duration expression