The Research Of 3D-Visualization Of Guided Boring Trajectory

Trecnchless work occur the surface without excavation or less excavation of laying,replacement or repair of underground pipelines, and its key technology is to accuratetrajectory control, but because the process of boring most of the time is under theground, we can not directly observe track of bits and is unable to accurately control thetrenchless work.While the 3D visualization of the precise trajectory control provided a good basis.Base on the guided boring research and trajectory calculations, we achieve guidedboring trajectory , with Visual C ++, using OpenGL for 3D graphics softwaredevelopment platforms for the development of standards to the track leading into 3Dvisualization. The so-called 3D visualization of trenchless trajectory is to use 3Dvisualization technology, putting guided boring trajectory data into 3D graphics to showthe way that 3D computer modelling trajectory, thus visual, image observations intotrajectory curve, and as guidance into the design and trajectory control, thedevelopment of programme formulation, etc. convenience.According to actual data integration into the track characteristics, we can get thespace trajectory axis arbitrary point coordinates equation, basing on the smallest limitedcurvature. thereby establishing a mathematical model for visualization programming.The designed 3D visualization software of the Guided Boring trajectory canfacilitate the realization of borehole trajectory of the 3D display, the image translation,rotation, shrinking and enlarging,animation display, and other functions, also with aconvenient operational interface.