Drawing Of 3D Mine-Map In The VBA Environment

The mine is a true three dimensional geographical space. With the development of computer graphics technology, the plane mine chart still has some limitations in reflecting the space position although it has been improved constantly In mine production, because of the particularity of the underground mine geographical position and the visual level is relatively poor, the security hidden danger is existed. But, in recent years,frequent accidents in mines and rescue work hard,2 dimensional drawings more difficult immediately providing image intuitive stereo space information already reflected the disadvantages.Good 3 dimensional space figure can provide rescue trapped persons escape and rescue work with better information quickly. In mine production management, production command, optimal allocation of resources, it is also better than plane space figure. It is imperative that realizing 3D mine-map visualization and descriping mining space well.In recent years, the relevant national authorities have issued a series of standardization regulations according to the national mining system requiring all mining companies must establish complete plane mine chart system. This provides a good environment and the foundation for establishing good 3 dimensional mine chart system in future.The three-dimensional mine chart research of our country is at the preliminary stage of development, the development space is bigger and the development direction is more diversity.Thesis mainly included the following contents:1).Combined with VBA, we will realize AutoCAD second development, establishing several special linetypes for drawing and editing mine-map.2).Introducing AutoCAD about 3 dimensional editing and modelling function, it is improve the efficiency of drawing after customized developing several menus for drawing and editting mine-map, both plane map and 3 dimensional map.3).With the premise of plane mine chart data of related mine and the corresponding elevation value, realizing the underground area mine chart three-dimensional electronic, and making the space between roadway position show wide-awake. 4).Make the intersect roadways transfixion and silky using Boolean operations, making the space between roadway position show wide-awake.