Abstract: In order to reduce the deformation of plane geometry when it is projected onto the surface and improve the design and modification efficiency of three-dimensional geometric units when it is arranged on the surface, this paper applies visual programming technology to analyze and solve it. In addition, it explains the meaning of parametric design, summarizes the advantages and disadvantages of parametric design using visual programming technology, and summarizes its design form. Finally, the specific design ideas and methods are introduced, and illustrated with two cases.

Key words: Visual programming; Car styling design; Alias; Dynamo

摘要： 在制作汽车三维数据时，为降低平面几何图形排布在投影到曲面上时图形变形现象，提高三维几何单元在 曲面排布时的设计和修改效率，文章应用可视化编程技术加以分析和解决。此外对参数化设计的含义进行解释，总 结应用可视化编程技术进行参数化设计的优缺点，概述其设计形式。最后介绍了具体的设计思路和方法，并用两个 案例加以说明。

关键词: 可视化编程；汽车造型设计；ALias；Dynamo