STAGES AND REGULATIONS OF CREATING OF A DIGITAL LARGE-SCALE TOPOGRAPHIC MAP IN SCALE 1:5000 AND 1:10000

"The topographic map is a graphic image of part of the surface. On it with specific topographic symbols are plotted all of the essential physic characteristics of the surface from the map-making area." The main purpose of the large-scale topographic map is to give detailed, current and reliable information for the physic geography of the area. The purpose of the pilot project of creating of a digital, large-scale topographic map is to support the process of changing and creating of current regulations, according to the international standards, requirements and instructions for the technology of creating and updating the digital topographic databases, accumulating and using the topographic information. On the base of these rules is defined the contents of the large-scale topographic map and the technology processes and procedures of its creating for the maximum satisjiing the needs of the users of geodesy and cartography materials. The creating of a digital, large-scale topographic map can be conditionally separated on two stages. The first one includes activities of collecting, organizing and analyzing the available graphic information. The second one, which is the purpose of the current paper, includes creating a geospatial database, correcting and updating the complete information and its cartography visualization. As a result of the cartography processing is obtained the final form of the digital, large-scale topographic map. A database which is set up on a definite structure and rules gives a possibility for optimizing the costs for creating and updating the maps, managing the data, planning, analyzing and visualizing of the information for different purposes. The final stage of the process of creating a digital, large-scale topographic map in scale 1:5 000 is visualization the geospatial data from the current database. The main principle is a maximum preservation the symbols and, if it becomes necessary, to be updating with decline in old and unused symbols and creating new symbols after a researching of the needs of the users. The pilot project has been implemented about the territory of two settlements in the region of Sofia Municipality - Bankia and German.