|
弹簧源程序" `5 o" U( r* d. H
0 K5 s; }$ M# N2 j0 [4 s) j- F4 q
: W1 q0 q( w8 i; N: a( k, m5 b& J- (defun errMsg (s) ; 当命令执行时出现错误 0 N8 Y/ n4 m& Q: L! ]6 \; F
- ; 例如用户按下了CTRL + C
$ H. n( G+ J T# | - (if (/= s "Function cancelled")
# g! ?7 k* E/ @- I0 w6 Y9 ?' l - (princ (strcat "
' o0 n; |) `& Y - Error: " s))+ |& N! n, H0 |, j/ n3 p1 v
- )' k) ^. T( Z9 n7 Z1 n5 _) _7 j
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
9 s! m6 V6 Y5 [- P9 ^ - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
9 ?- n3 J+ P7 f, I2 ^( H2 u* n4 a - (setq *error* olderror) ; 恢复旧的错误处理$ g- r* t a( b+ ?' W7 l0 |
- (princ)* r7 X" a5 K) H, k
- )% M( ~1 w% ^2 z$ {5 R* c8 K
l; }6 J* ]' R) v) s! r- (defun spring (nRepeat cntPoint bhfac lr strad bvfac% N5 s- f# k: j
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)
3 N& m1 j7 d- Y9 [& Y! z
: |& g) U+ i; t1 X6 B3 d- (setvar "blipmode" 0) ; 关闭 blipmode 8 W1 r, F6 p: t! p( v! P
- (setvar "cmdecho" 0) ; 关闭 cmdecho$ n* G' }9 }4 F
- (setq Pi2 (* 3.14159265 2))) `0 g( x+ h2 C7 I! J* y& B1 ]
- (setq aGrw (/ Pi2 lr))0 v! O9 Q( W6 S+ Z D# z" h. V
- (setq dhGrw (/ bhfac lr))
# @/ ?$ O6 S' D5 K6 x) b8 a! \ - (if bvfac (setq dvGrw (/ bvfac lr)))) F1 g: W, [- x8 K
- (setq angle 0.0)
+ J% C& R2 Z* h - (if bvfac
: w! M v' k! Y' ] - (setq distnc strad dv 0.0) q$ d6 g4 L" e
- (setq distnc 0.0). z$ t9 e7 c$ k# v# A7 M- O
- )5 D3 g$ F& d% ?) x
- (if bvfac
! z3 E. C( }8 H5 l* K8 e9 K! c - (command "3dpoly") ; 开始绘制弹簧
6 @2 E1 h: w5 L$ I4 z) O- m) d( U7 x - (command "pline" cntPoint) ; 从基点开始绘制弹簧. T4 j- L" I6 k# f7 y; r
- )
6 A2 |( L4 V1 L - (repeat nRepeat
0 m) g3 T, L* H, G - (repeat lr
$ u, j d( h. H7 _2 j - (setq tp (polar cntPoint (setq angle (+ angle aGrw))2 n9 X/ U9 f3 B% F
- (setq distnc (+ distnc dhGrw))
( r: o9 `; m4 c; L9 q) Q - )% U0 J6 w" Y3 ]' L3 H$ v5 [0 c
- )5 H' r# {7 D/ Q. {$ \6 o, i
- (if bvfac# w# `1 h( x1 b9 }2 J7 p
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))) t9 ?8 |- ^( _% ~ _, ]+ i
- dv (+ dv dvGrw)
6 O7 A# ~1 r N% X) v - )) ?! ]: t/ c% k) W# T
- )
3 A" n- T. A! m& `5 r - (command tp) ; 继续输入下一点+ B6 p" n# \. {$ N
- )
$ v9 y) G# u9 S& y6 Q" Z% w/ s( ~- e - ) 0 o& m$ H3 [, H
- (command "") ; 输入结束1 J5 [! V& [( l5 _% r6 K* i4 K
- (princ), y6 v6 k# q# [2 T% M! `1 Y8 |
- )
2 @3 R& q/ [4 x( a2 p# x4 U
8 G* e2 Z9 C) j3 g3 i" U, U( C7 o- ;;;3 k B a. [, l
- ;;; 生成三维弹簧函数调用接口
3 t) v' f: L/ r. S - ;;;
0 F- D" D" d- b# x- l P% }- D - ! k( j% a( s, p0 p, y
- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle)
! R" m% k5 b7 j+ ^2 f - (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值,以便调用结束后恢复
2 M- ^% F" W& Q - (setq blpmd (getvar "blipmode")) ; 获取blipmode值,以便调用结束后恢复( s( ^3 e- F7 A6 m% v( J
- (setvar "cmdecho" 0) ; 关闭 cmdecho
8 H# e* q& X C- k+ p ~ - (initget 1) ; cntPt 必须非空
4 Y( c0 D3 w, Y6 J# I - (setq cntPt (getpoint "/ F9 F! z- O" ^7 J% g
- 请输入底部中心点: "))
! H, z3 u) U% G+ Q - (initget 7) ; RottCnt 必须非零、非空,不可忽略
3 e, s( p! D' `) T `5 O- a - (setq RottCnt (getint "
" \5 X1 _, G" e m' c% _4 T - 旋转的圈数: "))4 w3 C% G6 X6 {% w$ Y6 `' Q
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略
4 Z5 v7 a$ q: T r- y1 b0 \; { - (setq bgnRdtn (getdist cntPt "
7 {. O% m/ S1 o; u; H$ G# } - 起始半径: "))) y. i7 j. X5 O) L4 @) j9 r% y
- (initget 1) ; cf 必须非零、非空
6 o, G7 F# q' w& } - (setq horiGrw (getdist "! W4 [" r( H) l7 A" i
- 每一圈的水平增长距离: ")) ^8 `7 r. ?% K
- (initget 3) ; cf 必须非零、非空
- _/ A G2 o" g1 ?; o - (setq vertGrw (getdist "
! N3 A5 S8 s* B E+ e0 |' ~' G, [7 i4 M) p - 每一圈的垂直增长距离: "))- B) z3 Q7 \8 w5 E% S
- (initget 6) ; ptCntPerCircle 必须非零、不可忽略/ h+ l7 P. Q# V. L7 k
- (setq ptCntPerCircle (getint "
7 S% u; c6 p; H% j" m - 每一圈的插值点数<35>: "))
0 M( h' k: L* O - (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35))) * U, F# F, A! X2 ?) Z. R. K6 z
- (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)3 c4 S( j+ }# A) g6 J# ]
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
8 i3 a: F9 Y* o/ L6 e - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
, b* y# }7 u. a4 D$ G+ n - (setq *error* olderror) ; Restore old *error* handler
7 M* I" E9 T' M - (princ)
% Y2 Z7 h! S: L% R2 R- B
9 Y8 B; }3 T& F6 i1 L- )
复制代码 |
|