摘要
Engineering excavation GIS (E 2 GIS) is a real-3D GIS serving for geosciences related to geo-engineering, civil engineering and mining engineering based on generalized tri-prism (GTP) model. As two instances of GTP model, G\|GTP is used for the real\|3D modeling of subsurface geological bodies, and E\|GTP is used for the real\|3D modeling of subsurface engineering excavations.In the light of the discussions on the features and functions of E 2 GIS, the modeling principles of G\|GTP and E\|GTP are introduced. The two models couple together seamlessly to form an integral model for subsurface spatial objects including both geological bodies and excavations. An object\|oriented integral real\|3D data model and integral spatial topological relations are discussed.
Engineering excavation GIS (E^2 GIS) is a real-3D GIS serving for geosciencesrelated to geo-engi-neering, civil engineering and mining engineering based on generalizedtri-prism (GTP) model. As two instances of GTP model, G-GTP is used for the real-3D modeling ofsubsurface geological bodies, and E-GTP is used for the real-3D modeling of subsurface engineeringexcavations. In the light of the discussions on the features and functions of E^2 GIS, the modelingprinciples of G-GTP and E-GTP are introduced. The two models couple together seamlessly to form anintegral model for subsurface spatial objects including both geological bodies and excavations. Anobject-oriented integral real-3D data model and integral spatial topological relations arediscussed.
基金
FundedbytheTeachingandResearchAwardProgramforOutstandingYoungProfessorinHighEducationInstitute
MOE ChinaandTheHongkongRe searchFunds(No.3.34 .37.ZB40 )
