Title :
3D spatial modeling for urban surface and subsurface seamless integration
Author :
De-fu, Che ; Li-xin, Wu ; Zuo-ru, Yin
Author_Institution :
Sch. of Resources & Civil Eng., Northeastern Univ., Shenyang, China
Abstract :
3D urban geological modeling is an important research issue with the studying of the digital city in China. In view of the deficiencies of present modeling methods, an integrated model based on GTP data model is presented. It applies ground engineering, terrain, geological body, underground engineering model and be comprised of the following geometric primitives, Node, Edge, Arc, Triangle, GTP. Triangle is the most basal geometric primitive in this model. The seamless integrated model of urban surface and subsurface can be created based on above data model. The principle of the seamless integration modeling of aground and underground objects, the implement method for the seamless integration modeling is introduced. A real-3D geosciences modeling system, GeoMo3D, developed with VC++, OpenGL and SQL sever, an actual 3D geological model of an exploring district, is shown as a case.
Keywords :
geographic information systems; geophysics computing; terrain mapping; 3D spatial modeling; CD-TIN; China; GTP data model; Generalized Tri-Prism; GeoMo3D; OpenGL; SQL sever; VC++; digital city; geometric primitives; ground engineering; real-3D geosciences modeling system; seamless integrated model; underground engineering model; urban geological modeling; urban subsurface; urban surface; Buried object detection; Channel hot electron injection; Cities and towns; Civil engineering; Data models; Data visualization; Geology; Solid modeling; Tin; Urban areas; 3D geological model; CD-TIN; GTP; integrated modeling; surface and subsurface;
Conference_Titel :
Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS 2009
Conference_Location :
Cape Town
Print_ISBN :
978-1-4244-3394-0
Electronic_ISBN :
978-1-4244-3395-7
DOI :
10.1109/IGARSS.2009.5417787
