基于顶点偏置的STL模型偏置方法研究

为实现STL模型的等距偏置,研究了基于面积加权平均的STL模型顶点偏置方法。利用VC++6.0,C++和Open GL实现了上述算法的软件系统,同时利用Rapid Form XOV检测软件将文中算法生成的偏置模型与UG软件生成的偏置模型进行了比较分析。算法应用实例表明:这两种偏置模型的整体轮廓标准偏差为1.180 8 mm,断面上的轮廓线标准偏差为0.022 8 mm。

Research on the Method for STL Model Offset Based on Vertex Offset

In order to realize the equidistance offset of the STL model, the vertex offset method for STL model offset based on the area weighted average was studied.The software system was implemented by using the VC++6.0, C++ and OpenGL, and the comparative analysis between the offset model generated by the proposed algorithms and the UG software was done by using the RapidForm XOV software.The case study shows that the standard deviations of the contour and cross profile between the two offset models are 1.180 8 mm and 0.022 8 mm respectively.