The paper presents the methodology for calculation of the potential of viewer places and potential of seen areas in the landscape that is the part of the methodology of landscape visual quality assessment. The basis of evalution within geographical information systems (GIS) was the modelling of visibility by digital model of relief (DMR) and selected features of the secondary landscape structure (SLS). The analysis was carried out in the raster data model and its result is the determination of the value of vista potential and visual dominance potential in the landscape for each grid cell. This procedure was applied in the model area of Svaty Jur and Liptovska Teplicka.