GGU-PLGW: "3D potentials" menu item

Using this menu item it is possible to visualise lines of equal water level (potentials) for the existing nodes in three dimensions. In the following dialog box you can choose between perspective and parallel projection, as well as selecting the position of the eye.

The program will generally make sensible suggestions for the input values in the dialog box, so you will not normally need to make alterations.

After leaving the dialog box by pressing "OK" you will see the following dialog box. It greatly resembles the box shown in the menu item "Evaluation/Potentials coloured".

You can also specify whether an enclosing cube should be displayed; in some cases this improves the 3D effect. The "Shade from colour 1 to colour 2" check box represents a bit of a special effect. If this check box is activated a light source is simulated in the region of the "eye". The angle between the light beam and the respective 3D surface represents a measure of the reflection. The area is shaded in accordance with colours 1 and 2. A good choice of colours, for example, would be dark grey for colour 1 and pale grey for colour 2.