DIGEDIT is used to define the geometry of the finite element- or finite difference grid and to create maps for a variety of input parameters. The module is normally launched from the user interface but also works as a seperate program. When used from the user interface the file names that are needed for assigning parameters are automatically generated.

Defining a calculation grid

For constructing the grid the location of the model boundary, water courses, fault lines (and other line elements), groundwater wells and the different density polygons (definition of nodal distance) are easily defined using DIGEDIT. After this the generation of a model grid is only a matter of a few mouse clicks.

Creating input parameters

Creating input parameter maps is relatively simple and straightforward. Depending on the type of parameter the data may be defined as lines, points or polygons or a mixture of those. triwaco comes with a whole range of different interpolation techniques to assign the parameters values from the maps to the nodes and/or cells of the grid.

Background maps and ArcView/GIS integration