GGU-3D-SSFLOW: "Interpolation mesh" menu item

In principle, the z values can be completely defined using the previous menu items. A further defining simplification is offered by the interpolation mesh. Similarly to the FEM mesh, this interpolation mesh consists of nodes and triangles. A certain z value can be defined at the nodes. After defining an interpolation mesh you can assign the z values to the user-defined plane of the FEM mesh. These are assigned by means of linear interpolation. The interpolation mesh should (but not must) completely blanket the FEM mesh. In the simplest case possible, this may consist of one triangle.

Different colours can be defined for the interpolation mesh and the FEM mesh to improve the clarity of the screen visualisation.