Class Resource

OptSeq resource class.

• Arguments:
  • name: Name of resource. Remark that strings in OptSeq are restricted to a-z, A-Z, 0-9,[],_ and @.
  • capacity (optional): Capacity dictionary of the renewable (standard) resource. Capacity dictionary maps intervals (pairs of start time and finish time) to amounts of capacity.
  • rhs (optional): Right-hand-side constant of nonrenewable resource constraint.
  • direction (optional): Rirection (or sense) of nonrenewable resource constraint; "<=" (default) or ">=" or "=".
• Attbibutes:
  • capacity: Capacity dictionary of the renewable (standard) resource.
  • rhs: Right-hand-side constant of nonrenewable resource constraint.
  • direction: Rirection (or sense) of nonrenewable resource constraint; "<=" (default) or ">=" or "=".
  • terms: List of terms in left-hand-side of nonrenewable resource. Each term is a tuple of coeffcient,activity and mode.

Adds a capacity to the resource.

• Arguments:
  • start(optional): Start time. Non-negative integer. Default=0.
  • finish(optional): Finish time. Non-negative integer. Default=0. Interval (start,finish) defines the interval during which the capacity is added.
  • amount(optional): The amount to be added to the capacity. Positive integer. Default=1.
• Example usage:

  >>> manpower.addCapacity(0,5,2)

Add new terms into left-hand-side of nonrenewable resource constraint.

• Arguments:
  • coeffs: Coefficients for new terms; either a list of coefficients or a single coefficient. The three arguments must have the same size.
  • vars: Activity objects for new terms; either a list of activity objects or a single activity object. The three arguments must have the same size.
  • values: Mode objects for new terms; either a list of mode objects or a single mode object. The three arguments must have the same size.
• Example usage:

  >>> budget.addTerms(1,act,express)

  adds one unit of nonrenewable resource (budget) if activity "act" is executed in mode "express."

Returns the information of the linear constraint.

The constraint is expanded and is shown in a readable format.

Sets the right-hand-side of linear constraint.

• Argument:
  • rhs: Right-hand-side of linear constraint.
• Example usage:

  >>> L.setRhs(10)