GGU-CAD: "Terrain hatching" menu item
Existing lines can be allocated terrain hatching.

The lines to be allocated terrain hatching are selected analogous to the previous menu item "Lines/Text on lines". The following dialog box opens by right-clicking after completing line selection:

Define the required spacing, lengths and angle of the terrain hatching. The "Avoid overlapping" check box should be activated, exactly as when defining slope lines, to prevent the lines being drawn across each other in corners and on curves. The terrain lines can also be rotated by 180° if they are drawn on the wrong side.