Three-View of Component物体的三视图 1)Set up three-view projection system 建立三面投影体系 The three projection planes are orthogonal from each other.Make up of one projection system. 采用三个相互垂直的投影面，构成投影体系。 0 V-plane→Vertical plane正（垂直）平面 H-plane→Horizontal plane水平面 W-plane→Wall(Auxiliary vertical))plane侧（铺助垂直）平面 The intersection lines of the X-axis-→X轴 three projection planes are These axes meet at a point called the axes of projection. Y-axis→Y轴 which is called the origin. 三投影面的交线为投影轴 三投影轴垂直相交于原点0 Z-axis→Z轴 请点击鼠标左健显示后面内容 6 Y-axis→Y轴 0 1) Set up three-view projection system V-plane → Vertical plane 正(垂直)平面 H-plane → Horizontal plane 水平面 W-plane→ Wall(Auxiliary vertical) plane 侧(辅助垂直)平面 X-axis→X轴 Z-axis→Z轴