GGU-2D-TRANSIENT: "kr = f(u) function legend" menu item

The value kr is a dimensionless coefficient, representing the change in permeability in the unsaturated zone. It is specified in the GGU-2D-SSFLOW program when defining the soil properties for the initial steady-state system and used to model the phreatic line, among other things.

If you activate the "Show legend" check box in this menu item, the function is displayed as a graphic in a legend on the screen. The presentation can be modified to suit your needs in the dialog box.

The position of the legend can be defined or edited by means of the variables "x" and "y", "Width" and "Height". If you edit the font sizes you should also always increase the width and height correspondingly, otherwise the actual function graphic will appear smaller within the defined legend frame.

If you activate the "Automatic axes" check box, the program will use a presentation scale including all given values for u. If the check box is deactivated, visualisation of the x-axis can be restricted to a user-defined "Max. u" value.

If the "Use soil colours" check box is activated, the individual graphs are colour-differentiated. However, if the graph values are the same for all soils, the function graph is automatically drawn in black and a corresponding note added to the graphics. Additionally, you can define a background colour for the legend.