期刊名称:Archiwum Fotogrametrii, Kartografii i Teledetekcji
印刷版ISSN:2083-2214
出版年度:2008
卷号:18
语种:English
出版社:Main Board of Association of Polish Surveyors
摘要:3D cartography and geographic data visualization are currently very popular. Compared to traditional methods,they allow a clearer presentation of a wider range of geographic content and facilitate interpretation. It is claimed that the manner of visualization is as important as the map content,and that 3D GIS has a higher communication power that two-dimensional GIS. It is of high importance for individuals who have not gained much experience in working with maps (especially for those having problems with correct relief perception) as well as for spatial planning (particularly the participatory aspect of it). This paper explores how traditional cartography,GIS, and virtual reality can be combined to visualize,analyze,and explore data. The first stage of the work involved map design and 3D visualization of spatial and attribute data. ArcGIS and ArcScene ESRI were used. Subsequently,to develop more realistic visualizations and facilitate communication with a user,Google SketchUp Pro 6 was used. The programme makes it possible to use the ready-made 3D models and to create one's own. It also allows to publish products in the Internet by Google Earth. Satellite images,orthophotomaps, feature data,digital terrain model,and Web library of the ready-made 3D models were used as source data. In effect,general and detailed maps,virtual flights,elevation profiles,panoramic views and three-dimensional realistic models were generated. Apart from providing a user with spatial context and orientation,the 3D GIS allows also to present the ground surface and landscape (natural and anthropogenic,e.g.,a city) elements in an enhanced manner,while quantitative data may be showed as diagrams or other schematic images. The reality visualized at the lowest possible degree of abstraction is much easier to comprehend and allows to concentrate on the content. Satisfactory effects are obtained with digital terrain model and satellite images or orthophotomaps. Very complex visualizations,where the content is enriched in 3D models of trees,buildings,etc.,and where it is possible to move,approach virtual reality. They allow the user to intuitively perceive the nature and beauty of a landscape,and are very helpful in planning.
其他摘要:Kartografia 3D i wizualizacja 3D danych geograficznych cieszą siĊ obecnie duĪą popularnoĞcią. UwaĪa siĊ,Īe sposób wizualizacji jest tak waĪny jak sama treĞü mapy, a trójwymiarowy GIS jest bardziej komunikatywny od dwuwymiarowego. Ten artykuá prezentuje, j