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这是教程里的一道题& K1 K# q, d- K* J
(defun c:lt()
- a L6 L4 b* @! y' R+ x, T/ m(setvar "cmdecho" 0)6 r, y+ g3 ?& l2 H0 [4 T7 n" V
(setq p1 (getpoint "\n插入点"))/ Q' T6 f& V! T4 B2 p' ~
(setq w (getreal "\n梯宽"))) K# W* I' ]( [
(setq h (getreal "\n梯高"))/ Z. B! \9 |; ~
(setq n (getint "\n级数"))0 S( h0 a) `4 {1 H7 @
(setq p2 (polar p1 0 w))4 ~) b6 W* U3 B: p& o+ V
(setq p3 (polar p2 (/ pi 2) h))2 a7 ~* ]- Z6 \, u
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(command "line" p1 p2 p3 "")' y( M( k5 x! ?* V+ B
9 O$ |4 O# d/ _2 t: f7 y! r(setq w1 (/ w n))' U0 } E# h' X+ e$ w; J! d* u
(setq h1 (/ h n))1 X: i- z: ^* p; D
(setq pa p1)) G" v* F+ l- J* ^' y( A/ Z) G0 U
(repeat n) a+ ~4 k" e% o% {. x2 G
(setq pb (polar pa (/ pi 2) h1))
$ E9 v/ o" m+ z4 u3 H6 G m2 D(setq pc (polar pb 0 w1))4 T) t+ B0 M$ w% o
(command "line" pa pb pc "")
& q. p9 K" [* |7 s+ w(setq pa pc)7 O* b8 f) W' P. N
(prin1)))7 f* j, Z+ z5 [3 q# |
(prompt "\n命令：lt")
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[ 本帖最后由 leimc 于 2007-12-19 16:55 编辑 ] |
发表于 2007-12-19 16:39
发表于 2007-12-19 16:44
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