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基于UG制图中主模型方法,通过建模应用、装配应用、制图应用模块,快速创建3D部件的2D图,研究第三角投影法投影原理、画图与看图的基本方法。通过体模型与制图中视图的双向关联,以及第一角视图与第三角视图生成法、投影规律的比较,探讨现场读图时第三角投影图和第一角投影图的快速转换技巧。
Based on the main model method in UG drawing, the 2D method of 3D parts is quickly created through modeling application, assembly application and cartography application module, and the basic method of projection principle, drawing and drawing of the third-angle projection method is studied. Through the bidirectional correlation between the body model and the drawing view and the comparison between the first angle view and the third angle view generation method and the projection law, the rapid conversion skills of the third angle projection view and the first angle projection view when the on-the-spot reading is studied are discussed.