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弹簧源程序
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0 a1 X( m, H$ E; ]/ e- (defun errMsg (s) ; 当命令执行时出现错误 : w' J, W6 n5 @7 | h, {1 ]
- ; 例如用户按下了CTRL + C
( v* J' F- @' t1 [0 c7 V! C - (if (/= s "Function cancelled")
% Y. c' o$ K+ \9 e - (princ (strcat ") ~; ?' I O. f$ a( M
- Error: " s)). b! K2 d7 @+ w8 J$ |) y
- )
7 g6 X: g; P0 O) n3 t' h3 G - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
& Z7 u( ]1 O8 f3 P - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值7 N% y* ^! K4 H% @! G' J* `
- (setq *error* olderror) ; 恢复旧的错误处理9 f# s. Z9 m L$ |! `, A# `. S8 ~
- (princ)
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- (defun spring (nRepeat cntPoint bhfac lr strad bvfac$ Z/ X: @# A- C: [# K- t
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)9 W+ c4 m. s p- k
- 3 o5 O% W" _8 P
- (setvar "blipmode" 0) ; 关闭 blipmode # E* _& u& P* D; X
- (setvar "cmdecho" 0) ; 关闭 cmdecho
. q6 W; i$ T. S2 c - (setq Pi2 (* 3.14159265 2))
# w' `) ]2 L6 e! E - (setq aGrw (/ Pi2 lr))
2 x; S( c1 f, V8 R1 h' `; V - (setq dhGrw (/ bhfac lr))7 L; }4 J2 H! u5 ?% S
- (if bvfac (setq dvGrw (/ bvfac lr))); z- P& E. G/ B4 L0 Q
- (setq angle 0.0)
$ f( g9 T/ w4 z, X% }' Z" x8 ~ - (if bvfac J% W( [ w( Y
- (setq distnc strad dv 0.0)
- T- ^' ]% s( d- ?% o7 l9 M - (setq distnc 0.0). ]' X/ N/ d$ I! p9 A
- )& b* b0 [! z' y
- (if bvfac ?2 \; Q1 g4 n
- (command "3dpoly") ; 开始绘制弹簧
2 l2 T! U, z* P3 ~8 E2 J - (command "pline" cntPoint) ; 从基点开始绘制弹簧+ Z) v4 [8 \1 u v
- )
, X1 J: W0 B. ~9 d5 F, Z - (repeat nRepeat " b2 X; \# I% }- h3 V! f
- (repeat lr
( d7 Q6 h0 }' m: C) F - (setq tp (polar cntPoint (setq angle (+ angle aGrw))& O) O" v. ^+ z) b' N4 n' v
- (setq distnc (+ distnc dhGrw))$ {: g' ~: d q8 q% X% ^4 m
- )
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: ^+ D1 y3 W. E! q - (if bvfac, T8 a/ q h+ N$ ^ J5 U' w
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))/ K1 B9 A5 ?/ v7 E
- dv (+ dv dvGrw)
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- )0 I2 d% G- @. X% U
- (command tp) ; 继续输入下一点
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- ) 7 `! O, [* b- f% j8 b- J
- (command "") ; 输入结束
+ ^$ R& H1 g% p T7 O7 ]2 j - (princ)
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- ;;;" h+ L s. H7 Q) ^! Z. K
- ;;; 生成三维弹簧函数调用接口; b0 `3 m) \/ ~( V5 C
- ;;;/ H1 T% T5 Z$ L( h( L
/ f4 p. u& m4 M1 @/ R! J( D( t q- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle) ; t9 X# v+ r" R. m3 h
- (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复
3 p. U0 m8 O8 B, k8 D - (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复" m& [7 j7 f5 I6 p0 y6 z/ Q* g- r
- (setvar "cmdecho" 0) ; 关闭 cmdecho
8 I6 d9 |" X; c/ I; F - (initget 1) ; cntPt 必须非空
. n! f* z, o. R$ s - (setq cntPt (getpoint ". a% g$ T% Q* l: F+ \
- 请输入底部中心点: "))
2 K( E0 m- C8 w - (initget 7) ; RottCnt 必须非零、非空,不可忽略% q% i. K) f4 [& J- \
- (setq RottCnt (getint "0 f) N2 F; r, o u
- 旋转的圈数: "))
: n1 z0 f& ?% u# X) ]2 F - (initget 7) ; bgnRdtn 必须非零、非空,不可忽略
& H" M! R- E5 F; N - (setq bgnRdtn (getdist cntPt "
6 C+ o& V$ N) v/ |: V# b! m - 起始半径: "))5 M, R4 U& T+ Y' D! d, U) }
- (initget 1) ; cf 必须非零、非空
) `! n! C( C; C+ N( I - (setq horiGrw (getdist "% O9 h+ \. w1 ]; F+ u7 Q( _. J/ K
- 每一圈的水平增长距离: "))/ P; H- S/ q" k3 }+ B
- (initget 3) ; cf 必须非零、非空
9 @, T5 l" i9 z) R, e( c$ q - (setq vertGrw (getdist ". r- Q# W q) ?# c3 N
- 每一圈的垂直增长距离: "))- V+ y* ^+ l7 m+ Q- A! l1 ?
- (initget 6) ; ptCntPerCircle 必须非零、不可忽略0 Q, J# o; s8 H# \" r& W8 T; b) J
- (setq ptCntPerCircle (getint "
- X( C7 E( @( t% x4 n% L( M8 G - 每一圈的插值点数<35>: "))! V9 d0 `4 {0 G& ]: L1 Y, z+ T" b
- (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
1 l' L" c7 z0 m6 ~ - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)* L7 d7 `# [- Q7 l3 v
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值6 `! r. q2 y* j, M! e% B$ G6 u m4 g
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值9 w5 j, \% Z% p' p- \( T$ Q' [
- (setq *error* olderror) ; Restore old *error* handler
. ?' q" }3 x/ s - (princ)
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发表于 2010-3-13 11:12
楼主