GGU-2D-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.

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.