3D geoscience modeling is the key technique issue to the visualization of 3D geological data using GIS. Based on MAPGIS-TDE

the software system “3D geological modeling and visualization” is designed and established. MAPGIS-TDE

which is a powerful toolkit for 3D visualization

has a hierarchical structure composed of the kernel module of MAPGIS

the basal platform of MAPGIS-TDE

the construction platform of MAPGIS-TDE and the application system of MAPGIS-TDE. 3D geological modeling and visualization system has five functional modules as data management

2D analysis

cross-sections processing

geometry modeling and property modeling. By integrating geographical database

areal geology database

engineering geology database

hydrological geology database

physical geology database

geochemistry database with 3D geological modeling

the system realize such functions as data management

3D geological modeling and the visualization of 3D geological model. It is a visualization platform that assists the design and analysis for the geologists and the technologists.