Constructing the 3D virtual scene of a coal mine is the objective requirement for modernizing and processing information on coal mining production. It is also the key technology to establish a ＂digital mine＂. By exp...Constructing the 3D virtual scene of a coal mine is the objective requirement for modernizing and processing information on coal mining production. It is also the key technology to establish a ＂digital mine＂. By exploring current worldwide research, software and hardware tools and application demands, combined with the case study site （the Dazhuang mine of Pingdingshan coal group）, an approach for 3D geo-visualization of a mine surface plant and mine roadway is deeply discussed. In this study, the rapid modeling method for a large range virtual scene based on Arc/Info and SiteBuilder3D is studied, and automatic generation of a 3D scene from a 2D scene is realized. Such an automatic method which can convert mine roadway systems from 2D to 3D is realized for the Dazhuang mine. Some relevant application questions are studied, including attribute query, coordinate query, distance measure, collision detection and the dynamic interaction between 2D and 3D virtual scenes in the virtual scene of a mine surface plant and mine roadway. A prototype system is designed and developed.展开更多
Because of the complexity and variability of the mine underground roadway, roadway is required to be dynamically generated in 3-D display,viewpoint can be trans- formed to achieve the 3-D roaming effect,and can do int...Because of the complexity and variability of the mine underground roadway, roadway is required to be dynamically generated in 3-D display,viewpoint can be trans- formed to achieve the 3-D roaming effect,and can do interactive inquiries and positioning for the roadway.In terms of the requirements above,gave the comparatively detailed elaboration of the solution,using the open graphics library (OpenGL) and relying on VC++ 6.0 combined with Database Programming.Mainly establish the 3D model landscape of the underground roadway using OpenGL based on VC programming environment and MFC programming,elaborated the powerful 3D graphics library,i.e.OpenGL in detail, gave the algorithm which can realize the relative positioning and of arbitrary point and the roaming and so on in the mine roadway,and also solves illumination,turning,and other issues of the roadway model.展开更多
文摘Constructing the 3D virtual scene of a coal mine is the objective requirement for modernizing and processing information on coal mining production. It is also the key technology to establish a ＂digital mine＂. By exploring current worldwide research, software and hardware tools and application demands, combined with the case study site （the Dazhuang mine of Pingdingshan coal group）, an approach for 3D geo-visualization of a mine surface plant and mine roadway is deeply discussed. In this study, the rapid modeling method for a large range virtual scene based on Arc/Info and SiteBuilder3D is studied, and automatic generation of a 3D scene from a 2D scene is realized. Such an automatic method which can convert mine roadway systems from 2D to 3D is realized for the Dazhuang mine. Some relevant application questions are studied, including attribute query, coordinate query, distance measure, collision detection and the dynamic interaction between 2D and 3D virtual scenes in the virtual scene of a mine surface plant and mine roadway. A prototype system is designed and developed.
基金the Open Research Fund Program of the Geomatics and Applications Laboratory,Liaoning Technical University(2007010)the Important Laboratory of Liaoning Province Fund(20060370)
文摘Because of the complexity and variability of the mine underground roadway, roadway is required to be dynamically generated in 3-D display,viewpoint can be trans- formed to achieve the 3-D roaming effect,and can do interactive inquiries and positioning for the roadway.In terms of the requirements above,gave the comparatively detailed elaboration of the solution,using the open graphics library (OpenGL) and relying on VC++ 6.0 combined with Database Programming.Mainly establish the 3D model landscape of the underground roadway using OpenGL based on VC programming environment and MFC programming,elaborated the powerful 3D graphics library,i.e.OpenGL in detail, gave the algorithm which can realize the relative positioning and of arbitrary point and the roaming and so on in the mine roadway,and also solves illumination,turning,and other issues of the roadway model.
