This algorithm requires a z-coordinate at each node, except in the topmost layer (= ZKOR from the 2D input file or = or EICH). The interpolation module (Calculation Interpolation) can be used to facilitate this input. It can interpolate planar information (e. g. the ground level) from data at points or along lines. The interpolation can be used to compute the z-coordinate at each node of the horizontal layers. The x- and y-coordinates are known from the 2D model. Because of the variable z-coordinates, the horizontal element boundaries can follow geological layers.

 

Generation of a 3D mesh by the definition of z-coordinates

 

Creating partial layers in a 3D model