Digital Rock Drawing on Czech Topographic Maps: Present and Future Development

摘要

Methods for digital cliff drawing, used in production of large-scale topographic maps by Land Survey Office of the Czech Republic, are discussed. This is done in the context of Czech natural conditions and history of mapping, which influenced contemporary digital proces sing to a great extent. A detailed description of digital rock portrayal is given. Experiments, regarding a possible future development of digital cliff drawing in sandstone landscapes, based on the use of airborne laser scanning data, are also introduced.