|
|
弹簧源程序
5 Q! S% N; E0 b& E% X% d) ^% W, N* p! d0 k" K [1 i7 X$ F
d; B$ ]# Z" j( y+ O
- (defun errMsg (s) ; 当命令执行时出现错误
3 Z$ |3 @+ s2 p& a A. L - ; 例如用户按下了CTRL + C
5 u$ l3 W% r) Y* g# F6 T/ x# a - (if (/= s "Function cancelled")3 l+ r! s9 [* z: X0 R. G6 n: ]
- (princ (strcat "8 @) _6 q" n6 i( k$ A+ E2 {
- Error: " s))
" t4 I- h* r8 U* i# v - )
$ b) S) P" y: G - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值 M$ }! p% X0 q5 ]+ j
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值5 _" i; s, R" T, Z/ c1 E
- (setq *error* olderror) ; 恢复旧的错误处理7 U# b3 N" m/ Q: v
- (princ)! V# U; ^+ `* ^% w
- )" f6 I1 N2 j8 ~9 ^# W
, i/ _* D8 z0 O7 v' M! K( ~- (defun spring (nRepeat cntPoint bhfac lr strad bvfac2 A7 B8 X6 M2 e3 d0 [9 Z! a2 M
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)0 D( o+ b5 v: ~. @; \, C
- 0 v' h! B S4 W0 c6 K, t+ q5 x6 e
- (setvar "blipmode" 0) ; 关闭 blipmode / z& _2 t6 g/ S) Z7 T( q) A
- (setvar "cmdecho" 0) ; 关闭 cmdecho
; b9 v3 j5 n9 p; s4 d2 [ - (setq Pi2 (* 3.14159265 2))
|: a# G3 z2 a) ` - (setq aGrw (/ Pi2 lr))
2 e# b# G% `/ |* N. } - (setq dhGrw (/ bhfac lr))
+ j: d* m, a+ Q( m: | - (if bvfac (setq dvGrw (/ bvfac lr)))7 W6 G8 m; J. H& e1 \& g
- (setq angle 0.0)' M$ G a9 A, V" U" C _& X, I: G
- (if bvfac
9 q! i3 l2 f! ]- N5 |1 L* G( ] - (setq distnc strad dv 0.0)1 ~# A5 m& T$ i$ g' Z
- (setq distnc 0.0)
; d6 R: J5 S( x, f, m - )
% l1 A9 i" @. M" c) E8 J - (if bvfac
( \" D. F5 c7 l; d+ w - (command "3dpoly") ; 开始绘制弹簧) {+ Y! c% I3 N b- ~9 y/ p9 i
- (command "pline" cntPoint) ; 从基点开始绘制弹簧
3 k* s7 j2 S+ G& Y* R1 B - ). H _9 U4 ]% ^! f
- (repeat nRepeat 6 k3 D. E+ f3 x- S6 B- W( G- i
- (repeat lr 4 k' l( R, \: i) ^4 U
- (setq tp (polar cntPoint (setq angle (+ angle aGrw)): z' \, |/ Q4 [
- (setq distnc (+ distnc dhGrw))2 [! f ~( s8 U- [
- )
/ W& ?: }6 P1 d9 y/ X, S0 ]* W - )
6 e3 \ Z- ?4 S" c b7 C - (if bvfac( W" @5 U! ^8 _
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
1 E, I2 Y. }: m+ n4 G - dv (+ dv dvGrw)! \7 F2 G/ g- _! S. G
- )
1 l5 N5 Y2 i: [ - )
6 q, I8 v* R- v- z8 L t - (command tp) ; 继续输入下一点0 ?! P }2 A' a; F# [8 E7 t
- )$ f; c; }- R k/ I! p* Q
- ) / V: x K* j2 G6 M' b5 K) H) j$ q
- (command "") ; 输入结束; y# ?* F7 o/ |. P3 y
- (princ)
+ u) J) w1 r; ^6 [; _ w - ) _ w J5 y0 ~ l3 k) t
. t" U- I) j7 b! x8 x6 |- ;;;
2 L9 C! c' ?# A, m+ A - ;;; 生成三维弹簧函数调用接口9 m8 @+ x, I* {" z) |( J! X
- ;;;
$ x' t9 H7 v, C) ` - 8 B+ {% N0 C7 g( B: E! W: i
- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle)
+ j- G1 W, ?* }5 z' C* | - (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值,以便调用结束后恢复
7 O5 [ E/ \* N0 L B - (setq blpmd (getvar "blipmode")) ; 获取blipmode值,以便调用结束后恢复" M- h# ]5 l# h- N, Y7 f9 w2 I
- (setvar "cmdecho" 0) ; 关闭 cmdecho
4 @( l: _4 n& ~( Q2 t- Q - (initget 1) ; cntPt 必须非空
6 W* {/ E% _7 M' k9 R* o$ p - (setq cntPt (getpoint "
1 p# R: u1 A' t' d - 请输入底部中心点: "))
7 {5 z! X7 J* w2 _2 `+ ?/ y- h - (initget 7) ; RottCnt 必须非零、非空,不可忽略
0 b7 D. t6 k1 J4 h5 [ - (setq RottCnt (getint "
1 B% ~. c# u$ Y: x+ |2 G+ y+ {0 u0 `: J - 旋转的圈数: "))3 ?) H0 X7 a Q2 h8 [# h
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略
. D( m$ X5 F! Z- k# W% j, o' ]/ f! \ - (setq bgnRdtn (getdist cntPt "
, b4 o/ N$ Q! z+ V - 起始半径: ")) e2 `, y, X: T. c) |0 S1 m% Z' t, ]
- (initget 1) ; cf 必须非零、非空
4 C O0 {. H: F! H$ u3 ~ - (setq horiGrw (getdist "+ w' q# i" J& i9 h
- 每一圈的水平增长距离: "))* r& J& u8 h$ ?2 Z: A9 w& Z
- (initget 3) ; cf 必须非零、非空& I( g$ k+ v3 X/ @
- (setq vertGrw (getdist "
0 u i, f6 ]" D' [/ ~$ ?! B2 u' M* | - 每一圈的垂直增长距离: "))0 u. L: g' j, ]7 H& Z, T
- (initget 6) ; ptCntPerCircle 必须非零、不可忽略1 I# r- G# v5 t
- (setq ptCntPerCircle (getint "" E6 T$ t3 T' W4 E7 [ m* j0 g
- 每一圈的插值点数<35>: "))) X$ w6 B& z; c: `5 Q
- (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
2 T! M$ J9 U* ]3 I - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)4 Z5 k# M$ \4 E* U
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
) n6 n4 |3 ?$ ~( W3 D - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值 D8 Y9 b6 d" g: R& D
- (setq *error* olderror) ; Restore old *error* handler
8 [7 p$ t8 N! E" R - (princ)4 N- y( ?/ \) ?/ s' i p7 r' D: e. k, ?
4 a9 n" }/ q& t" L- Y( I) [- )
复制代码 |
|