A method for transmission of data for two- or three-dimensional geometrical entities uses a computer system (1), for modelling and/or manipulation of geometrical entities (10). The computer system (1) comprises at least one program for modelling and/or manipulation (11) and at least one display program (12), the at least one modelling and/or manipulation program (11) transmits the data associated with the geometrical entities (10) for display to the at least one display program (12), by calling up display functions located within the at least one display program (12). An exporting program (15) for data associated with geometrical entities (10) is substituted in at least one of the at least one display programs (12), the exporting program (15) having the same display functions as the at least one display program (12).