Here is an example of how to create a problem data file, explained step by step:

  • Create and edit the file (problem_type_name.prb in this example) inside the problem_type_name directory (where all your problem type files are located). Except for the extension, the names of the file and the directory must be the same.
  • Start the file with the line:
  • PROBLEM DATA

  • Then add the following lines:
  • QUESTION: Unit_System#CB#(SI,CGS,User)

    VALUE: SI

    QUESTION: Title

    VALUE: Default_title

    The first question defines a combo style menu called Unit_System, which has the SI option selected by default. The second question defines a text field called Title, and its default value is Default_title.

  • To end the file, add the following line:
  • END PROBLEM DATA

  • The whole file is as follows:
  • PROBLEM DATA

    QUESTION: Unit_System#CB#(SI,CGS,User)

    VALUE: SI

    QUESTION: Title

    VALUE: Default_title

    END PROBLEM DATA

  • The options defined in the .prb file can be managed in the Problem Data window (found in the Data menu) in the Preprocessing component of GiD.