Example1.Draw the triangular prism and get points on the surface 画三棱柱及表面上各点的三视图。 动画 Steps作图步骤： Draw view of the end faces. 先画反映端面形状的视图； Complete three views. 再按三等规律画全三视图； Draw all views of points. 6 求各点的三投影。 a 请点击鼠标左键显示后面内容 返回 9 A B Example1. Draw the triangular prism and get points on the surface. 画三棱柱及表面上各点的三视图。 (b) a S Draw view of the end faces. 先画反映端面形状的视图; Complete three views. 再按三等规律画全三视图; Draw all views of points. 求各点的三投影。 请点击鼠标左键显示后面内容 Steps作图步骤： a" a' (b' ) b