Current paper introduces the use of Generic Mapping Tools (GMT) for the cartographic workflow aimed at the geological datavisualization. Among the wide range of GIS software used for mapping and geospatial data modelling, GMT stands apart from the traditional tools such as ArcGIS ( ESRI Team, 2010 ), QGIS ( QGIS, 2019 ) and MapINFO. The particularity of the GMT comparing to the standard GIS consists in its fundamentally different approach towards geodata processing. The GMT, originally developed by Wessel and Smith (1998) is not a classic
, only a subpart (the rectangle 2.5 ⨯ 2 km covering the city centre including, for example, Prague Castle or Charles Bridge) was used. The intention was to describe the principles of data transformation, storage and visualization, which can be later applied on larger data sets. In particular, the following objects were available:
digital terrain model.
Figure 2 shows the downloaded input datavisualized in Esri ArcScene desktop application. The used coordinate systems are S-JTSK/Krovak East North (EPSG:5514) and Baltic 1957 height