GRPARAM - Define a Graphic Parameter File

GRPARAM is a utility program which is used to set up a graphic parameter files, i.e. file which specifies the details how to produce one particular kind of grid display. Once such a file has been created it can be used to produce any number of annotation files of this kind.

GRPARAM is called as follows:

grparam

GRPARAM generates a dialog that looks very similar to a standard EMME/2 dialog. Thus, for someone who is used to work with EMME/2, it is easy to operate GRPARAM. Note, however, that for Yes/No and Select type questions, unlike the EMME/2 dialog, it is not possible to answer with ``r'' or ``q'' for restart or quit.

In the dialog the user is prompted to specify the name of the parameter file that is to be generated. Also, he has the possibility to specify an existing parameter file as default file, which is useful to modify a parameter file or to create a variant of it.

GRPARAM distinguishes three main types of grid representation:

Classes:

The grid cell values are divided in different classes. For each class a lower and upper bound defines the interval of grid cell values that belong to this class. All grid cells belonging to the same class are displayed using the same color and hatching parameters. Horizontal, vertical and cross-hatching is available.

Numeric values:

The grid cell values are displayed numerically in the grid cell. The format, size, color and position of the numbers within the grid cells can be chosen freely.

Proportional hatching:

The grid cells are hatched vertically with the number of hatch lines increasing proportionally to the grid value. Color and scale factor are specified by the user.

The format of the generated output file is documented in section 5.3.