基于约束剖分三维露天矿采场模型的建立

为了提高露天矿采场三维模型的精度和三维显示效果，根据露天矿采场数据的特点，提出了采用约束Delaunay三角剖分建立露天矿采场三维模型的方法.该方法集成了采场中的散点和线状数据，使模型更接近实际采场，精度更高.这一方法用VC++net编程得以实现，并在实践中得到了很好的应用，建立的采场三维模型能很好地反映露天矿采场的实际情况，明显提高了模型的精度，并增强了模型的三维显示效果.

3D open-pit modeling based on constrained Delaunay triangulation

In order to improve the precision of open pit model, a method for the 3D open pit modeling was presented based on constrained Delaunay triangulation(CDT). The method is fit for the open pit data composed of points and poly lines. CDT model has high precision and approach actual open pit. The method was realized by programming with VC++net and well applied in open pit coal mine. In practice, the 3D model can precisely describe actual situation of open pit, and 3D model display result is obviously improved.