单元 1 UG NX12.0 简介与基础操作 ······················································1__eol__1.1 UG NX12.0 简介··················································································· 1__eol__1.2 UG NX12.0 主界面 ··············································································· 1__eol__1.2.1 初始界面··················································································· 1__eol__1.2.2 工作界面··················································································· 3__eol__单元 2 UG NX 草图设计 ·····································································5__eol__2.1 UG NX 草图简介················································································· 5__eol__2.2 任务环境草图······················································································ 5__eol__2.2.1 设置草图平面············································································· 5__eol__2.2.2 草图设置··················································································· 9__eol__2.2.3 基本图元绘图工具······································································· 9__eol__2.2.4 高级草图工具············································································ 14__eol__2.2.5 曲线编辑·················································································· 21__eol__2.2.6 几何约束·················································································· 23__eol__2.2.7 尺寸标注·················································································· 25__eol__2.2.8 草图综合知识············································································ 28__eol__2.3 草图综合范例····················································································· 29__eol__综合练习 2································································································ 34__eol__单元 3 3D 曲线设计········································································· 36__eol__3.1 3D 曲线简介······················································································· 36__eol__3.2 基本曲线命令····················································································· 36__eol__3.2.1 直线························································································ 36__eol__3.2.2 圆弧/圆···················································································· 37__eol__3.2.3 艺术样条·················································································· 38__eol__3.2.4 抛物线····················································································· 39__eol__3.2.5 双曲线····················································································· 39__eol__3.2.6 一般二次曲线············································································ 40__eol__3.2.7 螺旋线····················································································· 41__eol__3.2.8 曲面上的曲线············································································ 44__eol__3.2.9 文本························································································ 44__eol__3.3 高级曲线命令····················································································· 47__eol__3.3.1 偏置曲线·················································································· 47__eol__3.3.2 偏置 3D 曲线············································································· 49__eol__3.3.3 在面上偏置曲线········································································· 49__eol__3.3.4 投影曲线·················································································· 51__eol__3.3.5 组合投影·················································································· 52__eol__3.3.6 镜像曲线·················································································· 53__eol__3.3.7 相交曲线·················································································· 54__eol__3.3.8 等参数曲线··············································································· 54__eol__3.3.9 等斜度曲线························