The Study Of Modeling And Application In Three-Dimensional Tunnel

MGIS is mainly confronted with two kinds of special goals. It is driving tunnel and stratum layer, however, the tunnel play an important part in the activities of mining. As for the whole mine, tunnel, the main object of MGIS research, is the center. It is significant to construct the three-dimensional model in mining in the future.The subject makes a main study of crisscross tunnel network system, summarizes the source of tunnel data, analyzes the elements of the tunnel and their relations, describes its data structure with C++ program language, constructs three-dimensional modal by centerline and cross-section. Its algorithm is given .The "Drawing System of Three-dimensional Tunnel" (DSTT) is exploited with the object-oriented program design and OpenGL.The system can put the tunnel "show" on the screen of computer, meanwhile, can have a overall or part wander from various angles.The drawing data of the tunnel come directly from the surveying data of traverse, so the "Traverse Management Information System" (TMIS) exploited by the researcher, it can offer the data directly to DSTT.It is convenient to edit and inquire the data that applies the advanced database techniques to manage the tunnel data.