Projection of Curved Solids 曲面立体的投影 Summary of Curved Solids 曲面立体概述 Right Cylinder 圆柱体 Cone 圆锥体 Sphere 圆球体 Exercise 练习题 请点击相应标题显示其内容 总目录
Summary of Curved Solids 曲面立体概述 Right Cylinder 圆柱体 Cone 圆锥体 Sphere 圆球体 Exercise 练习题 Projection of Curved Solids 曲面立体的投影 请点击相应标题显示其内容
Summary of Curved Solids曲面立体慨述 Curved solids:When an element (a line or a curve)revolves around an axis,a revolution surface is produced.Curved solids that are surrounded by revolution surfaces are called revolution. 曲面立体： 一条母线（直线或曲线）绕一轴线回转而形成的曲 面，称为回转面；由回转面所围成的立体，称为回转体。 Curved solids ,〔Right cylinder,Cone圆柱、圆锥 曲面立体： Sphere,Cirque 圆球、圆环 请点击鼠标左键显示后面内容
2 Right cylinder, Cone 圆柱 、圆锥 Curved solids: When an element (a line or a curve) revolves around an axis, a revolution surface is produced. Curved solids that are surrounded by revolution surfaces are called revolution. 曲面立体: 一条母线（直线或曲线）绕一轴线回转而形成的曲 面,称为回转面;由回转面所围成的立体，称为回转体。 Sphere, Cirque 圆球、圆环 Curved solids 曲面立体: 请点击鼠标左键显示后面内容 Summary of Curved Solids 曲面立体概述
Right Cylinder 圆柱体 1.Projection of a right cylinder 圆柱体的投影 Draw steps画图步骤： Draw centerlines and datum lines. 先画中心线和基准线； Add view of the upper or lower face. 再画反映顶或底面形状的视图； Complete three views. 按三等规律画全三视图。 请点击鼠标左键显示后面内容
3 1. Projection of a right cylinder 圆柱体的投影 Draw steps画图步骤： 请点击鼠标左键显示后面内容 Right Cylinder 圆柱体 Draw centerlines and datum lines. 先画中心线和基准线； Add view of the upper or lower face. 再画反映顶或底面形状的视图； Complete three views. 按三等规律画全三视图
Right Cylinder 圆柱体 2.Getting points on the surface of a right cylinder 圆柱体表面取点 Method:It could be obtained on the circle following 方法 the projection principle and accumulation. 利用有积聚性的圆投影求之。 Distinguish:Limit elements are usually the boundary between visible and 判别 invisible regions of the corresponding projection direction. 转向轮廓线通常是回转面上对某投射方向可见部分与 不可见部分的分界线。 Label All invisible points are written in brackets. 标注 对不可见的点加括号以示区别。 Example1.Draw a right cylinder and get points on the surface. 画圆柱及表面上点的三视图 请点击鼠标左键显示后面内容
4 Limit elements are usually the boundary between visible and invisible regions of the corresponding projection direction. 转向轮廓线通常是回转面上对某投射方向可见部分与 不可见部分的分界线。 Method： 方法 It could be obtained on the circle following the projection principle and accumulation． 利用有积聚性的圆投影求之。 2.Getting points on the surface of a right cylinder 圆柱体表面取点 Distinguish: 判别 Label： 标注 All invisible points are written in brackets. 对不可见的点加括号以示区别。 请点击鼠标左键显示后面内容 Example1. Draw a right cylinder and get points on the surface. 画圆柱及表面上点的三视图 Right Cylinder 圆柱体
Cone 圆锥体 1.Projection of a cone 圆锥体的投影 Draw steps画图步骤： Draw centrelines and datum lines. 先画中心线和基准线； Add view of the lower face. 再画发映底面形状的视图： Complete three views. 按三等规律画全三视图。 请点击鼠标左键显示后面内容
5 1. Projection of a cone 圆锥体的投影 Draw steps画图步骤： 请点击鼠标左键显示后面内容 Cone 圆锥体 Draw centrelines and datum lines. 先画中心线和基准线； Add view of the lower face. 再画反映底面形状的视图； Complete three views. 按三等规律画全三视图