|
InfoProjekt, s.r.o. |
|
geographic information systems |
|
3DT Overview |
|
Classical geographic information systems (GIS) represents the real world by use of the two-dimensional points, lines and polygons organized into layers. This classical concept of GIS is closely related to mapping. Maps represents the real world in two dimensional space. We abstract from real world objects like rivers, roads, houses, trees and represent them by points, lines, polygons. These basic two-dimensional geometric objects are drawn with appropriate colors, symbols, line-styles and patterns. We also need some kind of a cartographic projection to draw a surface of globe on a two-dimensional paper sheet. Classical GIS does the same on a computer screen. Moreover, it gives to us powerful tools for data capture, spatial queries, analysis and high-quality printing. 3DT stands for a three-dimensional dynamic geographic information system. It is designed to manipulate, analyze and visualize three-dimensional dynamic data.
|
|
System design and implementation: Milan Koreň and Marián Zlocha. |