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弹簧源程序
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- (defun errMsg (s) ; 当命令执行时出现错误 % E5 D# ^' D1 a' g& w
- ; 例如用户按下了CTRL + C
% S/ J+ q- O v/ t/ x - (if (/= s "Function cancelled")! r. G: P$ T0 [& H2 G0 y% W" h7 q
- (princ (strcat "3 g" {, b( r, a: _- i2 {
- Error: " s))
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- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值 E- ]/ E( v/ ^( H3 [! w0 J5 p( `: R
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
, l* I0 W3 S4 ^3 i+ Y$ U - (setq *error* olderror) ; 恢复旧的错误处理+ ?2 r6 z: ?3 I9 I1 q; w( G
- (princ)5 z. r) P1 F+ M3 ?: A( ~
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! h/ T! `% y1 A2 V- (defun spring (nRepeat cntPoint bhfac lr strad bvfac
& A! Y3 D# p9 n! f, U& F - / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)0 o' c5 Q' ~4 p5 _0 i1 o
% {% H5 s9 y5 \6 `- (setvar "blipmode" 0) ; 关闭 blipmode
3 o L: D5 k3 C4 b3 Q, U* r( U - (setvar "cmdecho" 0) ; 关闭 cmdecho
! L# v! i) [' Q0 F U/ O1 o* Q - (setq Pi2 (* 3.14159265 2))0 G4 m/ ~& H, @- L
- (setq aGrw (/ Pi2 lr))
. N; E" r3 Y9 d, U0 F - (setq dhGrw (/ bhfac lr))
! ?+ `4 z6 G7 K! G4 g - (if bvfac (setq dvGrw (/ bvfac lr)))
' Q0 D/ V# e) \( h - (setq angle 0.0)
6 I7 N3 `$ _& |, I - (if bvfac
" p- @5 J6 @3 o4 @3 K1 P - (setq distnc strad dv 0.0) a) O5 l! l. C
- (setq distnc 0.0)$ O& g6 H, Y( ?
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1 | m# g7 ^! o. {1 R. o ?7 w - (if bvfac
3 Z' N9 u, j3 ` ^ - (command "3dpoly") ; 开始绘制弹簧, @2 s& m3 V8 ]( D" k
- (command "pline" cntPoint) ; 从基点开始绘制弹簧
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- (repeat nRepeat
' G$ f+ Z6 j& c* U- |9 N+ { - (repeat lr & \, V3 l" u$ o+ a% E
- (setq tp (polar cntPoint (setq angle (+ angle aGrw))5 H! _7 n \1 v9 W
- (setq distnc (+ distnc dhGrw))( @* @3 M; N3 p- G3 W( D7 q2 ^6 a) E
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- (if bvfac) B0 c6 I5 J* ^. }) q% g
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))4 a5 B! b9 }" K7 P+ |9 O I7 W9 w8 C
- dv (+ dv dvGrw)
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- (command tp) ; 继续输入下一点6 e0 z' T! L- F8 ~: ?
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" J; i" S: i [+ o9 I' w, h5 ]3 T - (command "") ; 输入结束. b5 g5 y; x" t8 V7 C
- (princ)
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* ?0 W; D* T: s- Y1 ?; c; X- ;;;
- u% Z6 \/ ^, P% [ - ;;; 生成三维弹簧函数调用接口
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' v6 B9 q! Z" U) I. S- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle)
9 ^' G% o9 D0 K5 X t) u - (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复4 ^6 M4 m9 @ @7 `& V0 U
- (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复
+ o0 {( C1 m: m3 b - (setvar "cmdecho" 0) ; 关闭 cmdecho
9 {- [# ?( N& w3 M6 V - (initget 1) ; cntPt 必须非空
2 F" ~. K. C* s. h$ ]; u - (setq cntPt (getpoint "
. _0 K6 |6 L @; X - 请输入底部中心点: "))
) w% o ^1 H& Q3 U" I5 K; i - (initget 7) ; RottCnt 必须非零、非空,不可忽略' V" ^# p" C' n. h
- (setq RottCnt (getint "3 e& K7 ~5 G9 A6 o1 H
- 旋转的圈数: "))% T& O( D, G) r7 T! C/ l
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略
{6 d3 C+ u+ o - (setq bgnRdtn (getdist cntPt "
* l: S3 A( K( L9 {5 }4 \ - 起始半径: "))$ u4 J5 W9 Q4 d% R
- (initget 1) ; cf 必须非零、非空& A6 h3 F2 h- W V
- (setq horiGrw (getdist "" s& E- U! Y% Z
- 每一圈的水平增长距离: "))
# `$ E, J4 G4 q* l7 t; t - (initget 3) ; cf 必须非零、非空
5 ~, Q# k8 e- K5 Q - (setq vertGrw (getdist "
* @0 k; I! V0 \9 L - 每一圈的垂直增长距离: "))- e. z8 b1 h$ o; c$ T9 x
- (initget 6) ; ptCntPerCircle 必须非零、不可忽略/ C) F/ G: R# l5 s7 {) T: C9 ]% S
- (setq ptCntPerCircle (getint "
: H& p0 ~! S& F$ x1 f - 每一圈的插值点数<35>: "))
6 a/ I7 I9 P- q, o - (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
1 s/ H9 W( S; \* A! R6 p - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
" i5 n# O7 V& x1 W# p4 h% W! p. Z - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
. P# C% K7 b+ u6 d+ Z( y - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值: U; y- n9 H. ~* A0 m. B) J, d( H
- (setq *error* olderror) ; Restore old *error* handler
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发表于 2010-3-13 11:12
楼主