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我最近学AUTOCAD LISP 二次开发遇到了些问题
& H/ ?. U- J( ~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?
8 M9 t; B3 \; h+ H/ X- (defun c:5js() _( m; y( n; w
- (setq os(getvar"osmode")- H; n2 X% E7 R2 d7 b0 e$ ]
- cmdcho(getvar"cmdecho"))
7 D* ^. u. O2 { - (setvar"osmode"O)
* I3 n' Q# o( ]2 ?0 C, B! @7 J. W - (setvar"cmdecho"O), w* R- ^6 ~8 k) C7 i9 A* W4 y* ?9 I
- (tsc)& w( \6 N p, o
- (setq pt1(getpoint"\n插入点"))
: }0 u2 M0 \' T5 r; O - (setq pt2(polar pt1(angtof"-108")(sc28.9086))) Y% |% R+ |* r, W8 t8 q1 _
- (setq pt3(polar pt2 pi(sc28.9086)))2 W5 z1 `, w. G9 q
- (setq pt4(polar pt3(angtof"-36.00")(sc28.9086)))+ P8 n+ @9 ?* h3 h/ k! A4 ?
- (setq pt5(polar pt4(angtof"-108")(sc28.9086)))
) k8 {( M6 P4 T: h3 ^ - (setq pt6(polar pt5(angtof"36")(sc28.9086)))) l- m: T7 {5 ~5 V
- (setq pt7(polar pt6(angtof"-36")(sc28.9086)))4 s4 V$ L, ?% ?7 M) {
- (setq pt8(polar pt7(angtof"108")(sc28.9086)))
: G/ e y3 i1 T9 k, {3 ` - (setq pt9(polar pt8(angtof"36")(sc28.9086)))6 @7 ?3 b' Q& E
- (setq pt10(polar pt9 pi(sc28.9086)))& c& Q8 z( N; C9 M* b" n
- (command"color" "r")
5 P# i" F/ H& {! z7 k) m1 F - (command"pline"pt1 pt2 pt3 pt4 pt5 pt6 pt7 pt8 pt9 pt10"c")
$ Y- a. t+ W6 P0 o - (setq sl (entlast))6 U2 T& v* R* |8 k5 Z" u! d
- (command"-bhatch" "p" "s" "s" "sl" " ")
; {) W0 A( |, j$ j - (setvar"osmode"os)
6 t% H2 w6 v1 |: a3 Q) `4 B* y - (setvar"cmdecho"cmdecho)
" T7 }+ Q4 C' n* U, y; J: S - )
" N/ w# Q' ~; |0 t! y - ;比例因子
8 A6 j I& ~* A% ?. n# I - (defun tsc()% R+ d2 F& w R! p6 _
- (if(=js_scale nil)
9 F( x& z# h0 a: o - (setqjs_scale 1)0 o I! p! M. y5 y
- )
- I- I+ m, {0 t: f o; G - (setq inp(getreal(strcat"\n输入比例因子<"& Z& C8 h, G# j( a, k% ~; Z
- (rtos js_scale)
- Q, r7 e) i+ s( q7 T V - ">")))+ | u2 \5 N m" G( [
- (if inp
0 B% D: W6 m" C# w8 z9 s - (setqjs_scale inp)
7 L9 U% x+ _: h. C - )
3 v: D# } y- j; u% c - )
3 Z/ W9 Z. ?1 D) U - ;比例放大或缩小) }9 H& o) _) I- E; Q+ D' L( h, q* K
- (defun sc(x)
- V4 {# E7 P$ X W; n3 z" |4 U2 J: b - (X js_scale)
2 n4 r9 ?$ k" f - ): d8 ^* h! D- E3 a( J6 T, k0 a
- (prompt"\n画五角星程序,键入:5js执行")
# c: p& ?7 ~6 M) I$ r - (princ)
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