GGU-3D-TRANSIENT: "nw = f(u) function legend" menu item

The value of n_w gives the volume of water relative to the total volume. It is a dimensionless quantity and dependent upon the pore water pressure u. The legend shows the specific characteristic curves of the user-defined soils.

In the dialog box to this menu item preferences for the visualisation can be edited if the "Show legend" check box is activated (see menu item "Graphics preferences/kr = f(u) function legend").