A method for generating a three-dimensional terrain model while using object-oriented vector data that contain supporting points, which describe the terrain, of position values indicating at least the cartographic position, and of elevation values that indicate their height or depth with regard to a reference level. By using non-uniform blocks of multiple identical sub-arrays, non-uniform assignments of blocks to banks andor non-uniform assignments of IOs to blocks, it is possible to optimize the dimensions of the chip and the placement of the IOs with respect to the package pads. The deflection fitting further includes an adapter of plastic having a collar portion inserted into the installation opening and a delimiting portion inserted into the eye. In addition, the inventive method reports only enough information to the external memory tester for it to determine row, column and single bit failures repairable with the available redundant resources. 7, and a centroid Hc of the projected figure H coincides with a centroid Fc of the projected figure F. It also provides a single control knob which can select from several different chemical concentrates to be diluted and dispensed.