The transition from the cartographic to the geoinformation approach to the production of topographic maps determines the transition from cartometric to analytical methods in GIS. Authors researched the peculiarities of calculation the geodetic area of a feature on the reference ellipsoid by Simpson's method.
Peculiarities of calculating feature's geodetic area are determined by developing the special function in PostgreSQL 12.0. The programmed special function for calculating the geodetic areas of features depends on the number of segments involved in Simpson's method because it is affected by the specified accuracy of determining these areas.
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