面向多轴FDM工艺的IGES数据解码器研究

熔融沉积(Fused Deposition Modeling,FDM)工艺通过逐层堆积实体材料构成三维模型,因此需要获得模型的数据对模型进行后期的数字化处理,如模型分块,修复,切片,层片内路径规划等。在现阶段,大多数数据处理采用的都是基于STL文件的数据格式,但STL文件数据存在数据冗余,几何精度低,容易产生错误等缺点,在一些对精度要求高的场合不适用。为了弥补以上的不足,出现了直接对参数化的三维模型进行数据处理的技术。该技术基于IGES文件数据,实现对模型的数据处理。而要想实现对IGES文件的处理,必须实现对IGES文件的解码工作。针对以上问题,提出了基于VS2008平台,实现对IGES文件进行数据解析,存储,并将提取的实体信息用NURBS曲线曲面统一表示的方法,最后基于OpenGL实现对模型的再现功能,为后面模型数据处理提供平台。

Research on IGES Data Decoder for Multi - Axis FDM Process

Fused Deposition Modeling (FDM) process construct a three-dimensional model by stacking solid materials. Therefore, it is necessary to obtain the data of the model for later digital processing, such as model block, repair, slice and intraplate path planning. At this stage, most data processing is based on STL file data format, but STL file data there is data redundancy, low geometric accuracy, easy to produce errors and other shortcomings, in some high precision requirements do not apply. In order to compensate for the above shortcomings, there has been a direct parametric 3D model for data processing technology. The technology based on IGES file data, to achieve the model of data processing. And in order to achieve the IGES file processing, you must achieve the IGES file decoding work. Aiming at the above problems, this paper proposes a method based on VS2008 platform to realize data analysis and storage of IGES files, and to unify the extracted entity information with NURBS curve surface. Finally, we can realize the reproduction function of the model based on OpenGL,and provide a platform for later model data processing.