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我最近学AUTOCAD LISP 二次开发遇到了些问题5 _5 ~8 ?% o- U
下面是一个自动绘制五角星的代码,运行的时候出现错误: 错误: AutoCAD 变量设置被拒绝: "osmode" nil 请问各位高手 这是什么原因?
6 Y! H- G$ h* R2 Q; z9 a9 P- (defun c:5js()
0 q& w) X9 S0 B# c - (setq os(getvar"osmode")
J8 m) q( `9 V5 u0 _ - cmdcho(getvar"cmdecho"))& g& a( I4 K( F- j9 k
- (setvar"osmode"O)* Q7 C8 P( }4 n
- (setvar"cmdecho"O)/ z& C, ]6 |5 P% j# H8 H* N; U K
- (tsc)
& d7 H3 _' X7 j - (setq pt1(getpoint"\n插入点"))7 k- y- O! X% ~$ N
- (setq pt2(polar pt1(angtof"-108")(sc28.9086)))8 _+ l: l: _5 ?9 u/ a4 `2 [
- (setq pt3(polar pt2 pi(sc28.9086)))
# _3 g# I( b* Z, g; I - (setq pt4(polar pt3(angtof"-36.00")(sc28.9086))) k$ L& X ? ?. H# g$ b1 W
- (setq pt5(polar pt4(angtof"-108")(sc28.9086)))
5 i( z9 k* [2 ]1 ^& }& Q, j - (setq pt6(polar pt5(angtof"36")(sc28.9086)))
( p/ i$ N! Y9 }/ a) Y' O - (setq pt7(polar pt6(angtof"-36")(sc28.9086)))9 x: }' B0 U5 P' V/ L% T
- (setq pt8(polar pt7(angtof"108")(sc28.9086)))
5 r: O( D" S' ~9 n* x+ P- \! s& _8 n - (setq pt9(polar pt8(angtof"36")(sc28.9086))): O$ N" K4 W F; p! g# z2 \
- (setq pt10(polar pt9 pi(sc28.9086)))
% d- I! C; C' Q8 K6 u. G - (command"color" "r")
" S6 F, X4 U2 g' F {4 a - (command"pline"pt1 pt2 pt3 pt4 pt5 pt6 pt7 pt8 pt9 pt10"c")6 @# h5 g* Z' w% U
- (setq sl (entlast))0 B8 Q0 D& ?' x6 f/ a
- (command"-bhatch" "p" "s" "s" "sl" " ")4 n( ~, Q- X4 t1 L# f
- (setvar"osmode"os)
$ R3 q" ?& p5 x. P# T0 b - (setvar"cmdecho"cmdecho)
; P. R% ]$ f# o. y0 s6 s4 A# ^ - )
! c( K) _; }; K E, L - ;比例因子1 Q1 w% L% k' R L! P& C% A
- (defun tsc(). q1 v. Z* [: h% K) v
- (if(=js_scale nil)( R( b% h! c2 N
- (setqjs_scale 1)9 G, C0 e7 y1 }8 w% m
- )
" U6 L, q0 `4 z* c# V0 b8 R( N - (setq inp(getreal(strcat"\n输入比例因子<"
( ]6 r: b% r* N' j$ J - (rtos js_scale)5 L- m7 B' q2 j7 x
- ">"))), |0 F5 t2 g# l. Y0 {
- (if inp& j$ ]. \, ]. ?5 h4 ]" {
- (setqjs_scale inp)7 M# X1 p5 ?, ^! V: w
- )
- {+ W( E' x9 l/ z! ~ - )4 V# P" I6 L8 V6 z p
- ;比例放大或缩小
9 o; O9 f' T4 i7 j2 s8 g1 o) s) d - (defun sc(x)
* G7 n7 Y1 `2 { - (X js_scale)
: A9 o+ U6 d5 D - ) r6 Z5 }3 F7 N) h
- (prompt"\n画五角星程序,键入:5js执行")9 W! W5 ?' U G3 M s2 q
- (princ)
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