Mine three-dimensional roadway fast automatic generation method based on DXF
An automatic generation and roadway technology, applied in image data processing, instruments, etc., can solve the problems of time-consuming and laborious, three-dimensional roadway is not easy to compare the original plan at any time, and three-dimensional roadway cannot be realized.
Inactive Publication Date: 2014-02-12
镇江中煤电子有限公司 +1
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[0002] At present, there are mainly two methods for generating 3D roadways: one is manual drawing, using the 3D drawing function of AutoCAD to draw 3D roadways one by one, which is time-consuming and laborious; The disadvantage is that the three-dimensional roadway drawn is not easy to compare with the original plan at any time.
Han Fushun and Gong Liangwei (Coal Science and Technology, 2011) proposed a semi-automatic drawing method of mine 3D roadway combining manual drawing and programming drawing to make the rapid generation of coal mine 3D roadway possible, but manual drawing of 3D polylines one by one and gradually input polyline The elevation information of each point still consumes a lot of manpower, and if there is no elevation information for a roadway, the roadway cannot be realized in 3D
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[0023] Refer to attached figure 1 , attached figure 2 , attached image 3 , attached Figure 4 , attached Figure 5 , attached Image 6 , a kind of DXF-based mine three-dimensional roadway fast automatic generation method of the present invention, comprises the following steps:
[0024] a) Use VC++ to read the mine AutoCAD engineering drawing file (.dxf), extract and analyze all the data of the layers involved in the roadway, and reposition the origin of the drawing. The analysis results are attached figure 1 Shown, including data such as survey point elevation, survey point, roadway, contour line, etc., attached figure 2 It is the analyzed roadway layer; the repositioning of the drawing origin is realized through matrix transformation, and the purpose is to change the viewport position of the drawing to a position that conforms to the human visual characteristics.
[0025] b) Through coordinate transformation and matrix transformation, seamlessly compare parameters su...
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The invention relates to a mine three-dimensional roadway fast automatic generation method based on a DXF. The mine three-dimensional roadway fast automatic generation method based on the DXF includes the following steps that firstly, a mine AutoCAD engineering drawing file (.dxf) is read, all data of layers relating to a roadway are abstracted and analyzed, and reposition of a drawing original point is performed; secondly, parameters of the slope, the pitch, the line distance and the like of straight lines in the layers are compared in a seamless mode, and the center line of the roadway is analyzed and drawn; thirdly, through dynamic matching of a measuring point and altitude data of the measuring point, an elevation value is given to the center line, if a certain roadway does not have elevation information, the height margin calculation is automatically performed through roadway connection; fourthly, the shape of the roadway is scanned and modeled based on the center line, and the roadway is placed in a designated position in space through rotating and horizontal moving; fifthly, the texture of the roadway is rendered. The mine three-dimensional roadway fast automatic generation method based on the DXF has the advantages that the three-dimensional roadway can be fast and automatically generated by utilizing the VC++ picture editing function based on the mine AutoCAD plane engineering drawing file (.dxf), time and labor are saved, and the three-dimensional roadway can be compared with an original plane map at any time.
Description
technical field [0001] The invention relates to a method for quickly and automatically generating three-dimensional mine tunnels based on DXF. DXF refers to Drawing Interchange Format, which is a CAD data file format for CAD data exchange between AutoCAD and other software. Background technique [0002] At present, there are mainly two methods for generating 3D roadways: one is manual drawing, using the 3D drawing function of AutoCAD to draw 3D roadways one by one, which is time-consuming and laborious; The disadvantage is that the three-dimensional roadway drawn is not easy to compare with the original plan at any time. Han Fushun and Gong Liangwei (Coal Science and Technology, 2011) proposed a semi-automatic drawing method of mine 3D roadway combining manual drawing and programming drawing to make the rapid generation of coal mine 3D roadway possible, but manual drawing of 3D polylines one by one and gradually input polyline The elevation information of each point still c...
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Inventor 贾幼鹏顾寄南谢娟娟徐军霞耿霞张辉王雷杨治
Owner 镇江中煤电子有限公司