Quasi trim-prism volume based 3D visualization modeling and its application in underground mining engineering

Some geological phenomena of mines such as ore bodies, strata, faults, boreholes and shafts, etc. are all three-dimensional spatial objects and it's difficult to realize the spatial analysis of these geological phenomena. The method of three-dimensional visualization modeling is the most important problems in three-dimensional visualization engineering of underground mines. Quasi Trim-Prism Volume (QTPV) model is the basic model in three-dimensional visualization modeling and it is improved from Orthogonal Tri-Prism(OTP). It is suitable for three-dimensional simulation of some complex underground objects such as ore bodies, faults and strata. This paper studies the method of QTPV based three-dimensional modeling. According to the methods and conceptions of QTPV modeling, a web-based three-dimensional model for ore body was constructed with Java3D API based on borehole data. Some functions, such as zoom, rotation etc. are also be realized.