Projection of a point点的投影 2.The principle of points 点的投影规律 aa'L OX The length alignment,X equal. 即长对正，相等 X a'a"LOZ The height alignment,Z equal. 即高平齐，Z相等 aa"LOY The width equality,Yequal. 即宽相等，Y相等 3.Relation of points projection coordinate 点的坐标与投影的关系 X=a'az=aayu→The distance of A to w.(A点到侧平面W的距离) Y=aaFa"az→The distance of A to v.(A点到正平面V的距离) Za'a,7a"avw→The distance of Ato H.(A点到水平面H的距离) 请点击鼠标左键显后面内 w网 3 Z = a'ax = a"aYw→ The distance of A to H. (A点到水平面H的距离) a'a"⊥OZ The height alignment, Z equal. 即高平齐, Z相等 H X 0 Y w Y H Z V W X Y Y Z 2. The principle of points 点的投影规律 3. Relation of points projection & coordinate 点的坐标与投影的关系 请点击鼠标左键显示后面内容 Projection of a point 点的投影 aa' ⊥ OX The length alignment, X equal. 即长对正, X相等 aa"⊥OY The width equality , Y equal. 即宽相等, Y相等 X = a'az = aaYH → The distance of A to W. (A点到侧平面W的距离) Y = aax = a"az → The distance of A to V. (A点到正平面V的距离) a' a a" ax aZ aYH aYW