A ground element can only be used in an exterior scene. It is an area with a defined shape and an arbitrary height that may for example differ from the rest of the scene only because of its function.
Fig. 304 A ground element
By default a ground element has a rectangular shape and a height of 0.0 m. If you modify the height, the ground element is extruded consists of a top surface and sides. If you want to modify the shape of the ground element, you can switch to the Edit mode with a right click. The Inspector shows the different surfaces of the ground element. You can change their material independently and you can select if the different surfaces will be listed in the calculation output. A ground element can appear as a “hole” inside of another ground element. The grey ground element and the selected ground element in the figure above are such “holes” that are cut out of the green meadow. In this example DIALux will not create calculation results for these parts of the outer meadow.
