Abstrakt
This article analyzes the technology of creating and updating a digital topographic
map using the method of mapping (generalization) on an updated map with a scale
of 1 : 25;000 based on the source cartographic material. The main issue in the creation of
digital maps is the study of map production accuracy and error analysis arising from the
process of map production. When determining the quality of a digital map, the completeness
and accuracy of object and terrain mapping are evaluated. The correctness of object
identification, the logical consistency of the structure, the and representation of objects are
assessed. The main and the most effective method, allowing to take into account displacement
errors for the relief during image processing, is orthotransformation, but the fragment
used to update the digital topographic map needs additional verification of its compliance
with the scale requirements of the map. Instrumental survey will help to clearly identify
areas of space image closer to nadir points and to reject poor quality material. The software
used for building geodetic control network should provide stable results of accuracy regardless
on the scale of mapping, the physical and geographical conditions of the work area or
the conditions of aerial photography.
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