“…In addition, geoportals should have a subsystem for interactive visualization of thematic maps and layers of geospatial data of a geoportal, that is, provide for the ability to control scale and positioning, display attribute data for objects on a map, select various cartographic substrates, address and spatial search, measure distances, and so on. Geoportals can also act as a tool for integrating the visualization of geological objects, including three-dimensional ones, and geoinformation systems [25,26]. Thus, the standardization of the graphical interface and the search for the optimal number of functions can improve the ergonomics of visualization tools on geoportals.…”