KÖRNYEZETI TÉRINFORMATIKAI ADATBÁZIS FELTÖLTÉSE
TÁVÉRZÉKELÉSSEL POSZTGRADUÁLIS KÉPZÉS KERETÉBEN
Dr. Winkler Gusztáv
BME Fotogrammetria Tanszék
Abstract
The environmental informations systems ( EIS ) will have more increasing andgreater role at present as well in the near future. The remote sensing seems to bethe most important procedure for loading data into a small-scale system suitablefor regional data supply.
The article presents the possibilities of remote sensingfor gathering information in space and in time through the EIS developed at the Department of Photogrammetry, Technical University of Budapest.
Setét Sarolta, setet@gd-szamalk.hu
Gábor Dénes Mûszaki Informatikai Fõiskola
Abstract
Recognizing the widespread use of geographical information technology that increases the demand for the education of GIS, the Dennis Gabor Technical College for Informatics has launched a subject of dealing with the geographical information technology. In this paper we would like to present our experiences with the development of GIS-education by the method of distance-learning.
Dr. Tamás János, tamas@fs2.date.hu
Lénárt Csaba, lenart@fs2.date.hu
Debreceni Agrártudományi Egyetem
Víz- és Környezetgazdálkodási
Tanszék
Abstract
GIS (Geographical Information System) is a special information system that was introduced to analyse geographic data. In the last two decades GIS became an important tool in the understanding and forming of the environment. Our goal was the integration of GIS and environmental modelling in the areas of risk analysis and resources assessment, with help three-dimensional surface models. Three-dimensional geographical information systems provide a third dimension by accommodating surface data to afford solutions for efficient visualisation, modelling, and interpretation of multiple geologic or other attributes in their true three-dimensional relationship. These characteristics have made three-dimensional geographical information systems suitable vehicles for this modelling framework. As a result of the environmental modelling an optimal area model was made, which under the given conditions and limitations has the least risk on the environment and also considers individual and compounded effects. This model shows which area, soil types etc. are the most suitable for sewage disposal. According to the conventional professional and GIS based comparison analysis, the conventional analysis is not able to make complex analysis and have optimal results, because this method is not able to work with so many different variables in the same time. The main advantage of this method is its modelling capacity and is mainly an informative.
Katona Endre, katona@inf.u-szeged.hu
JATE, Alkalmazott Informatikai Tanszék
Abstract
Geographer students learn how to apply GIS, but for programmer students we teach how to develop such systems. Students have a preliminary knowledge in C language programming and database management, on the basis of this we can focus on data structures and algorithms applied in GIS.
As an application, an information system of university buildings and rooms has been developed on Intergraph MicroStation software basis. The system demonstrates the integrated use and query of graphical data (a city map and ground-plans of the buildings) and textual data (features of buildings, rooms and departments in database tables).
Finally, a map interpretation system (MAPINT) is presented: it vectorizes a scanned map, recognizes objects on it, and generates a structures DXF file as output.
Antal Péter, antalp@ektf.hu
EKTF Eger, Oktatástechnológiai és Informatikai
Tanszék
Abstract
GIS technologies which are special parts of informatics one of the high technologies in our days. These softwares help us to research the environmental complex and let to know these process. The geographical environment can be investigated from several aspects:
In the past decade there was an intension to define geoecology as the study of biogenic factors and of issues concerning the functioning of the physical environment, while landscape ecology investigates the biogenic factors and problems of spatial organisation structure. there is communication between them, e.g. geoecology may also reveal structural properties and landscape ecology may answer functional questions of the physical environment.
In my presentation I would like to give answer some of geoecological problems one of the part of the Bükk-mountain.
Jesús Reyes Nuñez, jesus@ludens.elte.hu
ELTE, Térképtudományi Tanszék
Abstract
In the first part of this paper we gave a summary about the training of Digital Cartography in our Department, including a list of the subjects relationated with this training. In the second part we explained some ideas in connection with the present and future of Digital Cartography: characteristics and a tentative classification of digital maps, relation between electronics atlases and geographic information systems, present-day questions and perspective of these maps. Finally, we wrote about what a role could be played for the latest softwares and computational technologies in the future development of digital maps.