The project is based on the use of small format analogue tourist-type photography. Described processing steps include phototriangulation on an analytical plotter, automated image matching for surface model generation and the use of novel point cloud editing and view-dependent texture mapping techniques. Presented is an object-oriented methodology of analysis, resulting to set of models describing the complexity of technical network from several views. Created analytical model stands as a basis for evaluation and customisation of standard GiS product, maintenance of implemented system and integration with other information systems of facility. As an objective of this paper, process of data modelling with several approaches is briefly discussed.
Emphasis is given to object-oriented data model.
In the following discussion of digital spatial data we will follow two basic assumptions. First one is that data capture, maintenance and usage is supported by computer technologies. Secondly, acceptance of specific differences of digital maps from spatial databases of GIS is needed. We will come from an idea that presentation of data in the form of maps is one of GIS outcomes, however, information functions of GIS are much more wider and flexible.