VISUALIZING THE QUALITY OF VECTUR FEATURES – A PROPOSAL FOR CADASTRAL MAPS
- TU Vienna, Department for Geodesy and Geoinformation, Vienna, Austria
Keywords: Data Quality, Cadastre, Visualization, Interviews, Vector Geometry
Abstract. A well-known problem of geographical information is the communication of the quality level. It can be either done verbally / numerically or it can be done graphically. The graphical form is especially useful if the quality has a spatial variation because the spatial distribution is visualized as well. The problem of spatial variation of quality is an issue for cadastral maps. Non-experts cannot determine the quality at a specific location. Therefore a visual representation was tested for the Austrian cadastre. A map sheet was redesigned to give some indication of cadastral quality and presented to both experts and non-experts. The paper presents the result of the interviews.