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Retrieving data from a Mosel model

Description
mmexset.cs: Using sets in Mosel (requires burglari.bim)
  • retrieve a set by its model name
  • get the set size
  • get first and last set element
  • get the name or index of a set element
mmexas.cs: Using arrays with index sets (requires trans.bim)
  • get indexing sets of an array
  • get array type
  • enumerate array entries in usual and transposed order
  • enumerate true array entries
mmexlst.cs: Using lists in Mosel (requires euler.mos and euler.dat)
  • retrieve a list by its model name
  • get the list size
  • enumerate the list elements
  • get value of list element
mmexrec.cs: Using records in Mosel (requires burglar_rec.mos and burglar_rec.dat)
  • retrieve an array of records (user type) by its model name
  • retrieve the record field information (field name, type, and number)
  • enumerate the array of records
  • for each array entry (record) get the value of all its fields
mmexprob.cs: Accessing problems and solution information with Mosel (requires blend2.bim)
  • export problem to a file (MPS or LP format)
  • get problem status
  • get objective function value
  • get primal/dual solution values, and constraint activity
Note that these examples require the provided mos files to be pre-compiled.

Further explanation of this example: 'Mosel Library Reference .NET doc'

mmexdatacs.zip[download all files]

Source Files

Data Files





mmexset.cs

/********************************************************/
/*  Mosel Library Examples                              */
/*  ======================                              */
/*                                                      */
/*  file mmexset.cs                                     */
/*  ```````````````                                     */
/*  Example for the use of the Mosel libraries          */
/*  (accessing sets in Mosel)                           */
/*                                                      */
/*  (c) 2008 Fair Isaac Corporation                     */
/*      author: J. Farmer & S. Heipcke                  */
/********************************************************/

using System;
using Mosel;

namespace mmexset {
  public class mmexsetClass {
    /// <summary>
    /// Main entry point for the application
    /// </summary>
    [STAThread]
    static void Main(string[] args) {
      XPRM mosel;
      XPRMModel mod;
      XPRMSet set;
      int first, last;

      // Initialise Mosel
      mosel = XPRM.Init();
      /// Load a BIM file
      mod = mosel.LoadModel("Models/burglari.bim");
      // Ru the model
      mod.Run();

      // Get the model object named 'ITEMS'
      // (it must be a set)
      set = (XPRMSet) mod.FindIdentifier("ITEMS");

      if (!set.IsEmpty) {
        // Items in a set are indexed by numbers
        // So get the number of the first and last indexes
        first = set.FirstIndex;
        last = set.LastIndex;
        Console.WriteLine("Elements of set ITEMS:");
        for (int i=first;i<=last;i++)
          Console.Write(" {0}, ", set.GetAsString(i));
        Console.WriteLine();
      }
      // We've written this explicitely to demonstrate set access, but the set
      // actually knows how to output itself.  Uncomment the following line to
      // see how it does this.
      // Console.WriteLine(set);

      if (set.GetIndex("CD player")<0)
        Console.WriteLine("'CD player' is not contained in 'ITEMS',");
    }
  }
}

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