/ t* s* E8 s- ]! x, Q6 i+ J这是教程里的一道题: v" B3 F5 a; X3 r/ S
(defun c:lt()/ z* ~: ]/ p8 H
(setvar "cmdecho" 0)/ b' ?3 V! O6 d, N$ A4 \
(setq p1 (getpoint "\n插入点"))
7 F6 L- ^4 F. k' i/ d(setq w (getreal "\n梯宽"))! u& R1 @% X+ q$ a. d$ e
(setq h (getreal "\n梯高"))
: f( Q: h/ u* A C4 h(setq n (getint "\n级数"))7 M d& ]! r5 e: |' h W- Z
(setq p2 (polar p1 0 w))
# Z- N9 l% d0 w(setq p3 (polar p2 (/ pi 2) h))/ U0 w" N! w0 J+ B: P9 B
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(command "line" p1 p2 p3 "")
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( a! x* ^3 ~0 L: Z: J, c/ o(setq w1 (/ w n))7 x* ~3 s+ L, B. i+ a
(setq h1 (/ h n))5 c/ h( T; S& ]& f' ~
(setq pa p1)
$ _+ m7 r" {6 C: h! X, [(repeat n2 I# P# [ |2 D. m3 N
(setq pb (polar pa (/ pi 2) h1))) ?. n# T* A* G7 ~0 t
(setq pc (polar pb 0 w1))
1 L* q% C0 h' L* G: y+ |# j(command "line" pa pb pc "")
' s2 X6 o9 ^5 x: E0 q% a(setq pa pc)
( _+ R0 |9 N0 |/ Z7 Q5 Z3 K(prin1)))! {* `6 r" N3 R7 n: M
(prompt "\n命令：lt")" l* E) q% F& \
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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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