针对边界面法分析模型前处理过程中边界条件的加载,提出了一种基于UG/Open的可视化算法.算法首先利用UG系统中几何模型的边界表征数据,在参数空间生成背景网格并计算显示点的坐标,然后再映射到三维空间进行图形显示,映射后能够保证几何信息的准确性.该算法不仅实现了与UG系统的无缝连接、载荷和位移约束条件的自动显示,而且有利于实现CAD和CAE模型的一体化.%This paper proposed a visualization algorithm based on UG/Open for the loading of boundary conditions during the pre-processing of the boundary face method analysis model.The algorithm firstly used the boundary representation data of geometric model in UG system to generate the background grid and calculated the coordinates of the display points in the parameter space.And then these coordinates were mapped to the three-dimensional space for graphical display.This mapping could guarantee the accuracy of geometric information.This algorithm not only achieves the seamless connection with UG system,automatic display of load and displacement constraints,but also facilitates the integration of CAD and CAE models.
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