The invention concerns a graphical application system, with a surface spattering device (9), that comprises at least one nozzle means (1) for an expelling of a spattering material (2) onto a target surface (3), a nozzle control mechanism (4) to control characteristics of the expelling of the nozzle means (1), a spattering material supply (5), a spatial referencing unit (30) to reference the spattering device (9) in space for determining its position and orientation and a computation means (8) to automatically control the expelling by the nozzle control mechanism (4) according to information gained by the spatial referencing unit (30) and according to predefined desired spattering data (6), wherein the spatial referencing unit (30) is located remote from the spattering device (9) and comprises at least two optical 2D cameras (31) arranged with a stereobasis inbetween the cameras, for determining the position and orientation by digital image processing of images taken by the cameras (31).