此文系转载，转载自哪里忘记了，原作者是谁也不知道。有知道的可以告诉我，我在帖子里写上$ r3 R' Y% G2 F4 o
: y: p% e: N) S) _' ^不再神神秘秘，齿轮轮齿渐开线、螺栓、弹簧autolsp源程序大公开，源程序见下面：
: `( A5 P! P! X" U$ f' ]一、齿轮轮齿渐开渐开线
' J: x; F% e* v1 Q- 4 U0 E$ h8 @/ M0 F2 G( N) m" [4 t5 N
- (defun c:gear(/). y3 F2 a$ ?7 y# q' A9 ^
- (' O( }5 T, ^ _7 v) `
- setq
1 \' o) _1 \3 {6 c# N& A - p0 (getpoint"输入齿轮中心p0: ")
j6 {; l+ B$ x& L5 N3 p% y2 t! u# R - m (getreal"输入齿轮模数M: ")& g1 E4 L; p0 Y4 l- h' z
- z (getint"输入齿轮齿数Z: ")% [! t+ ~3 ]1 D( J: I) c" V
- ha 1
" @$ u: p$ z& Y4 [ - c 0.25& Q0 O2 A' X0 @! L/ _( Z3 h2 C
- a (/ pi 9)
, G/ M3 L0 y, b8 y+ r4 u9 t# F - ra(/ (* (+ z (+ ha ha)) m) 2)
" G8 C% E5 ~7 [& S, E+ }4 ]: `7 { - rf(/ (* (- z (+ (+ ha ha) c)) m) 2)# v9 n9 M. z1 D' C: V" u7 a, r
- r(/ ( * m z) 2)$ p& J7 V5 [9 ]' g8 Z* n
- rb ( * r (cos a))' |5 |9 U" z: i+ ?
- ri rb
F! s9 R/ b- j. I% d# o3 C - ang 0
' B" ]5 G6 |) B. z" L4 S) B$ N - g (polar p0 ang rb)
5 B* ~7 a/ i8 R - )
* K. \# M* v* _ B) O V" k - (command "circle" p0 ra)
, N; N, R/ u/ O - (command "circle" p0 rf)
! u) S" b5 ^ {& H- d1 ^6 A - (command "circle" p0 r)
% Q) }1 c/ w! ?5 P - (command "line" g)
. ~0 ^6 ^, y# ~2 ?4 d" i- j, F* X" [ - 3 X8 \% J0 L7 E/ K( x- a
- (while (< ri ra)
1 ~, \+ s# [5 S0 O. a t- k/ Z - (setq
, \$ y4 }$ W9 L/ \5 E. F, E: F - ang ( + ang(/ pi 360))2 P4 O! S# T+ b- m- f
- ri ( / rb (cos ang))
+ n# O. z: @$ F1 o - cta ( - (/ (sin ang) (cos ang)) ang)
* Q7 r, u1 d5 a7 S$ x - g(polar p0 cta ri): K7 D: \& p5 D& F- i
- )
1 n0 t, }) e& J: i" d - % v: h9 z$ Y* h8 z% k! M8 {) i/ O
- (command g)" e3 G, }; n% m( m. q
- )) E( b/ s6 w+ {: a5 c6 a
- (command )
* `1 U$ h4 p$ e - )
# S( ?) r0 r* s2 [
( M' q) K( h: y4 r- e. H y6 \# {
0 ?! A( ~( i, {% v" `2 o$ t i, X# b: j- p
二、螺旋源程序
$ s$ A3 H7 |3 o! E
5 U' V/ g+ I D( {& `2 w- (defun errMsg (s)
5 ]. T v& }: e I - (if (/= s "function cancelled") (princ (strcat "
& Y' @6 Q/ G' N) e$ t7 T" A - Error: " s)))* `/ a0 Y2 I1 i7 F# ~
- ; 当命令执行时出现错误% ~5 k" s3 M) ?% X. v" V2 F
- (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
# \$ ~6 P3 \! k$ C6 Y b+ W - (setvar "osmode" osmold)5 j1 _: R2 ~2 W* H
- (setq *error* olderr) ; 恢复旧的错误处理
) w4 v+ t/ z- v+ l+ J* R - (princ)% d8 ]" }2 j) q: U
- )- I1 Z' d* t! A& X
; |- S6 n0 }& N" k7 {" j% L0 q- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle
+ N) V( F( [9 R3 p9 o( p7 V - ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
6 c5 Q0 Q5 A6 M& Z, ]0 J' m - ;-------------------------------------------------------------------
% V: m' K1 j/ j9 o9 m4 `- X7 x - ; 获取公制外径大小、螺距总长$ P. X3 B0 S2 Y* s+ t4 k
- ; 然后计算一系列几何点5 J* _. X; R" }
- ; 并且关闭对象捕捉、命令回显
9 z% X7 Q, Z7 M( h" w - ;-------------------------------------------------------------------
0 Z q' `: q6 ]( q - (setq 4H (list 0.0015 0.002 0.002 0.0025 0.003 0.0035 0.004 0.005 0.006 0.007 0.008 0.009 0.010)) ( d f8 p3 @+ ^0 c0 |1 U* V |
- (setq 5H (list 0.002 0.0025 0.003 0.004 0.0045 0.0055 0.0065 0.0075 0.009 0.010 0.0115 0.0125 0.0135))
+ f+ F! l4 ^5 `* A) b; F/ z - (setq 6H (list 0.003 0.004 0.0045 0.0055 0.0065 0.008 0.0095 0.011 0.0125 0.0145 0.016 0.018 0.020)) 9 W2 w+ }9 P& s7 z
- (setq h6 (list -0.003 -0.004 -0.0045 -0.0055 -0.0065 -0.008 -0.0095 -0.011 -0.0125 -0.0145 -0.016 -0.018 -0.020)) 6 t) x: ~2 H9 L+ i1 Z5 n0 ]
- (setq g6 (list -0.005 -0.008 -0.0095 -0.0115 -0.0135 -0.017 -0.0195 -0.023 -0.0265 -0.0295 -0.033 -0.036 -0.0515)) % q) H' h. Q7 A% J6 J
6 m( c, I4 @3 R( k2 \& W' S8 D# t% e1 f- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值
" X6 T1 M6 H+ u7 L; S! _% X. Q& B - (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值
) S" b3 J: u1 h& H7 W - (setvar "osmode" 0) ; 关闭对象捕捉 ( a3 H) d/ t0 r( F$ e
- (setvar "cmdecho" 0) ; 关闭命令的回显
2 b& J2 N, J4 a5 e - ' P3 [) W& x& X9 f
- (setq innerdiafactor 1.5) ; 设置内径系数
* \# h1 n! ?! [1 ^/ H9 q - (initget 7) ; radmid 必须非零、非空、非负7 [ z0 ^) b- S, C. B8 \& G' u
- (setq radmid (getdist "
- k6 E( J+ l. @/ A: k - 公制外径: "))
@: W; \, r7 S0 a0 i( P- `& r - (initget 7) ; threadpitch 必须非零、非空、非负
0 ?6 N: ]( u+ U+ U+ ` - (setq threadpitch (getreal "' `; r, ]. Y Y* C. h
- 螺距: "))3 O; G, g! O R+ K$ A
- (initget 1) ; ptStart 必须非空
8 V! U0 }( l0 X% B1 w" P- ]" c - (setq ptStart (getpoint "1 ~. v9 d* i* T5 ?4 k: S
- 起始点: "))
' r5 \+ ^* V. q* L4 g - (initget 3) ; threadlength 必须非零、非空、非负. e' C$ ]9 L; R( _ \) \
- (setq threadlength (getdist "9 H- c& t1 x7 a* i+ p9 t
- 螺纹总长(Y方向): "))5 t7 L. V3 B- K' G( k/ u. l4 n
- 2 ?+ @$ l; ~/ T, u8 l* S
- ; 对公制外径添加公差
: s& Q+ B8 o$ L/ V7 f - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置- |' Q, f8 K1 \( f& r- O9 _; r
- (if (<= radmid 6) (setq order 1) Z' P3 g- D4 Y: t" b
- (if (<= radmid 10) (setq order 2)4 X2 u1 f5 o& c; _, h. p7 a
- (if (<= radmid 18) (setq order 3)
k" p/ w' F! w - (if (<= radmid 30) (setq order 4)3 E1 P* C- O& @* g$ L
- (if (<= radmid 50) (setq order 5)
7 z3 q# M3 J# P0 ~1 W' B& T" a - (if (<= radmid 80) (setq order 6)
: i' I) ]9 M( }% F - (if (<= radmid 120) (setq order 7)- r: a2 P& r- }
- (if (<= radmid 180) (setq order 8)
9 S. m' K& u$ h7 I4 @ - (if (<= radmid 250) (setq order 9)
0 U% Z v1 E4 b, e" g - (if (<= radmid 315) (setq order 10)( l Q' b+ x% o# g+ Q
- (if (<= radmid 400) (setq order 11)
' \. u# g7 x% ^& v0 |' ~: r - (if (<= radmid 500) (setq order 12)
" O8 G. m; V# A ]6 x - )))))))))))))8 T% R" |$ a$ c
- 8 p e0 F, X {, Q3 [' x- c0 F
- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带, X& p% g6 o. _( A3 [0 c+ p
- (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
$ |' k9 W( |# a8 t - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))# H5 S3 v+ l' V# E$ G
- )))
! r: b5 e2 i7 T) \9 {' z0 [8 v/ k, k - / F* B; I6 ~1 S/ ?
- (setq h (* 0.866025 threadpitch)) ; 计算齿高: o0 n( F2 J, g9 e/ T! v
- (setq radouter (+ radmid (/ h 4))) ; 计算外径
: A$ A7 q6 O( _( e# p4 Y - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径7 m9 I9 p; n0 Y& o+ |
- (setq threadangle (+ 30 0)) ; 计算齿顶角
( e' Q" s I4 U# G% t
/ A" P7 q) S8 |5 g/ _- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数' \* \5 ]& h2 [
$ Z6 i+ N" s' L- (princ "
/ q: O; m3 T5 P) |% v - 三维螺纹创建完成")
! y6 z2 z2 A! J1 j/ } - (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值
/ W" y& i) l1 u. T% | - (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值$ }7 H& c7 w" K! U) o& T
- (princ). i! r7 @2 y% Y- `2 {3 [
- )) h9 s/ |9 T+ ~
- 2 Q9 ^. _5 Q# ]# ^+ Y1 c
- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a& T* H3 `* X8 W6 I
- pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)
% j5 Q1 r( g- K% j; o; k2 H
" ?& D4 b u8 G/ e- ;(command "undo" "begin") ; 开始undo步骤6 b2 \) j, i4 n* C: F
0 N, \" ^9 G( M# A- j0 w- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)3 k" @7 [2 u# ?" Q/ X3 D$ H
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
1 R/ ^7 R- z" N% M - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))
+ d7 j8 \+ M7 P3 d6 } - pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)
! }/ H% j5 t7 h! n! B0 H+ O( C - pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))
1 O' h& x% u' w" x* N - ang (angle pttmp1 pttmp3)
3 `/ N* c' Q8 g4 U- ~ - pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)# A u, R$ L* |4 q8 H
- pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))6 `. i+ V" \4 H7 L0 J6 F Z
- pt3a (polar pt1a ang radouter)
: J+ W f$ Q9 S( A# J0 W - pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)$ J9 O! `7 T! l" m
- pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))+ b) \7 I- I Q7 Z- M) I' w: l
- pt3b (polar pt1b ang radouter)( S+ H1 V) |9 E* s" b1 K
- pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)
9 ~% a" u/ c! L/ u1 n2 Q7 v2 A - pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)- \7 \ y r/ [) F7 Q
- pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart)), ]( h( C6 T1 ?7 u0 R0 y4 u! K! D
- pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)/ _1 I" a9 U/ `& o, i9 O7 Y" _# {& e
- pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)6 s+ u$ e) G7 t. K6 b B: r) v
- pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)
) `5 ]' [" X6 V# J: d7 I - pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))
) K! Y0 ?* ~: t) p - pttmp11 (polar ptStart (/ pi 2.0) threadpitch)5 m- L, [7 I! j1 b# v/ D
- pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))" x4 s, F7 _- o
- )2 l# E9 M: s$ P; `# T3 J- d
" k1 o2 q }' Z2 P, Q+ A, A, k4 B- ;-------------------------------------------------------------------
: D5 r- _& I$ Z. n d t - ; 绘制两个倒置的并偏移1/2螺距的圆锥( Z5 e( W5 O- @: u' ?0 f" H3 a, N
- ; 这两个圆锥都以中剖面剖分7 F# q0 E8 f- N9 Z7 S' V/ M
- ; 进行并集运算+ z# k3 e# G! F
- ;-------------------------------------------------------------------
) L7 L# n7 l% b$ \& m, W( A. i
" W4 m! z: Q% V* f8 H- (SETQ startcone "order")
1 C& X; s8 T* X) d+ N& f - (SETQ endcone "Y")3 Z! ^3 J& {7 M: H
- (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)( o0 f0 S7 X% c& Y
- # K* Y7 w5 A. ^1 A7 l
- (princ "
2 }& Z* j0 h0 e - 正在绘制三维螺纹，请等待")
0 o, f# p. g+ K0 ^3 d - (command "pline" pttmp1 pttmp5 pttmp6 "c")9 G1 w9 q' L$ |* Z
- (command "revolve" "l" "" pttmp5 pttmp6 "")
3 v, ]/ p* e0 ?4 ?/ d$ [ - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
8 Y$ l `: U3 ]6 `7 j2 h - (command "slice" "l" "" pt1a pt3a pt1az pttmp3)8 _+ o8 R9 m7 ^! n- u- ]
- (setq tstmp (ssadd (entlast)))
% A( a. S* @- Z2 Q - (command "pline" pttmp3 pttmp9 pttmp10 "c")
0 Z7 y5 N3 L) v; L - (command "revolve" "l" "" pttmp9 pttmp10 "")/ k8 X$ m7 V1 r# G
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)* g, p2 Y0 ?' |$ R! S1 q
- (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)
% c+ z$ _$ w, \* g2 s - (setq tstmp (ssadd (entlast) tstmp))
! G7 U; l' b V b; q - (command "union" tstmp "")
, K' |) i/ F4 [ - , D( W2 v: F' O% A8 Q! _
- ;-------------------------------------------------------------------4 Y1 k6 _0 o7 S; a, M' x: |
- ; 上面的实体被剖切成两份，然后进行镜像以获得螺旋线的螺旋3 _" o0 W4 S7 L. y0 [/ ?) J' M5 t
- ; 单线的高度实际上等于两倍螺距，但是超出或者是在内部或者是
. \- J8 b8 [& C+ s) @$ q8 s6 Q - ; 在最后一步被切除2 \: M# _ _, `5 R
- ;-------------------------------------------------------------------
3 x! T0 y: `# C! \! A
( k$ j9 L5 I9 S( Z4 h. {& g' G# p( z- (command "slice" tstmp "" "xy" ptStart "b")
- c. E: r- k$ L - (setq tstmp (ssadd (entlast) tstmp))/ F+ x% P: d+ D. J9 h8 {
- (command "mirror" "l" "" pttmp1 "@10<0" "y")
% K1 S' s, w; m2 E7 m# Q - (command "union" tstmp ""), Y) ~- w2 P) }" f5 C2 R
3 v1 f W- T# q# b2 |- ;-------------------------------------------------------------------! E" @0 B4 i( e& f
- ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）
' e& z9 \, N% h8 i - ; 得到的实体再切除到指定的螺旋高度
% `& P+ V% W8 r Y - ;-------------------------------------------------------------------
$ Y0 V% J. |$ s2 h
( s# N* D$ {1 g. l3 }, R- Q2 r1 T- (setq e (entlast))
) B) @0 k* Y D$ U* d- \# N - (command "array" tstmp "" "r" ttal 1 threadpitch)
9 H+ n6 [* n3 R; |& e - (repeat (1- ttal)
" g! b! q c6 U0 O: h4 w; Y - (setq e (entnext e)
9 T r2 t& z5 k0 Y8 z - tstmp (ssadd e tstmp)4 a* Y- a8 q- y2 q5 ]) O6 g
- )
$ ~, d; j$ W. K P9 Y3 H - ) ]0 V) R) w3 w" a
- (command "union" tstmp "")
5 O6 C) s5 A% G0 H& h8 }
; d) v1 i6 b# U6 w" K+ s1 Q- ; 若开始创建45度的圆锥
$ q& k* E% ^- [1 ], N& y5 e9 y, k - (if (/= startcone "order")6 q6 X: x( r+ e
- (progn (setq e (entlast))
: i7 ^' u/ S# o! B' @ - (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))
" M9 J2 l& I, n* T a; b3 A - (command "union" "l" e ""). y- V, b& {+ P/ s9 `( V
- )1 Z7 m8 y* _4 [$ w
- )
6 P3 a. L/ P8 G" T" K5 @
2 I6 z z; g9 {: u4 h. _+ O- (command "slice" "l" "" "zx" pttmp11 pttmp12)
: s0 X! v1 ~8 h' X) G - (command "slice" "l" "" "zx" pttmp12 pttmp11)! t8 A2 U! \4 w3 q7 s
- (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart)))
2 T7 U( V. d" J) Y. _
2 Y, G6 }: g, i2 o& {' M- ; 创建最小直径的圆柱体，然后与螺旋作交集8 L4 J8 c( F+ i1 m' k
- (setq e (entlast))
6 Y2 X, f" D* m - (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
- x4 V* h6 I* Y% Z' [: C9 c* T6 a - (command "union" "l" e "")2 Q& Q5 j2 H+ u; \
- (setq tstmp (entlast))6 l3 v$ g9 t$ W! M& Z& ?8 G
4 _0 I- t0 y6 Y4 q1 D; H- ; 创建中空的圆柱体
' `& b! `1 b5 W5 }( Y( I - (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia
2 d* \5 P/ Z* O2 M - (setq e (entlast))/ H. ]) J; p- D% p- w
- # C) V* A' I6 F+ ~. E# h# Y
- ; 若最后创建45度的圆锥8 ^/ x4 M8 W% |) I3 o
- (if (/= endcone "order")9 s# I' [: V8 J$ r
- (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) ' m# h6 G g: g3 s/ r( L
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart)))
( R* t* R; `8 g/ Z4 ]% ?5 U - (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))
6 I% O8 z) V9 S$ E- p' P, K5 Y - (command "union" "l" e "") * o% c6 r+ n l! S
- (setq e (entlast))2 o8 g ^: e8 t# j; I; ^$ T
- )
+ l. F0 K7 M" q) R: @ - )! p( H4 Z) l8 w- |
1 ?8 g% }, y3 F- B8 i- ; 从大圆柱中减去小直径圆柱
) ^' L5 F: Q4 `' Z, X - (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))# l/ d8 E% [$ O. {2 E' ]
- (command "subtract" "l" "" e "")
3 ~" B# i4 S6 i* X6 E3 D0 x - (setq e (entlast)), j- Z, ]( T& g8 u; s. t! [# B
\% O; U: x7 ^2 a- ; 从螺旋中减去圆柱
0 `8 I4 r$ @- [! y - (command "subtract" tstmp "" e "")$ l& s/ q! N! J* j+ d4 H9 G
- 1 X5 V4 f* P; w" A m* f4 K6 h/ o F. t
- ; 如果螺旋长度为负然后镜像
; o+ d" x" B1 d8 X6 {( _ - (setq e (entlast))
; ]; r, `8 r1 m; ~9 K! y - (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))
' k7 a- p" _& M% o& M
% u# y6 f1 K" B( J- (command "zoom" "p")
( v4 G1 T; P: ? - ; (command "undo" "end") ; 结束undo步骤+ n9 B$ T0 v( p- }" N; J1 i2 d: r
- )! _5 k1 E1 Y' G& x) a+ R! A
- 1 }5 u9 o* x, |$ Y J# \8 h
- ;;;---------------------------------------------------------------------------------------------------------------------;
0 o L; t4 N+ N; _; E9 W; w - (arxload "geom3d" nil)
8 w" @; ~1 U- P - (princ "
; s+ C [/ K% ~4 y! |% [( u5 @+ j - 3DThread 已加载。 ")
+ Y6 Z' ]/ P5 s) H0 ? - (princ)
; n% y" @ N2 D9 d7 B" m
: o) d! i/ g% X+ x4 @" |& H" i+ p4 ^! D
8 t, a/ ?# M5 N三、弹簧源程序* N" e. J7 Z! Y6 D3 x
- (defun errMsg (s) ; 当命令执行时出现错误
( v3 L1 }7 E( T7 x) p - ; 例如用户按下了CTRL + C
& q P8 {1 t/ r$ t: n - (if (/= s "Function cancelled")6 j, C; X' A/ _
- (princ (strcat "
! A7 G% G6 w0 X - Error: " s))6 z. ]% P+ K- p3 t) Z
- )( u/ D5 b7 I; S! P* F4 T7 w6 N
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值$ F" M; E5 j8 J
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
, R+ c( V u' ]5 E4 q - (setq *error* olderror) ; 恢复旧的错误处理
- h! V9 b1 T! r$ l1 z - (princ)& W$ l' g5 @# \: C% H7 o: \
- )$ V* U2 B6 o1 u& b
- : L9 h4 C3 H6 l, E8 F1 a
- (defun spring (nRepeat cntPoint bhfac lr strad bvfac
3 G/ o) }0 K Z* d7 e. O - / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)
+ g3 B% c8 J" O
6 z9 v7 p3 X3 O- (setvar "blipmode" 0) ; 关闭 blipmode
1 ?: e& [; I7 m0 ` - (setvar "cmdecho" 0) ; 关闭 cmdecho
* O. i( e/ ~, h+ P7 |2 R - (setq Pi2 (* 3.14159265 2))) z' p* E% {+ S7 c8 s
- (setq aGrw (/ Pi2 lr))" \ Y+ y0 v& A t+ h7 W
- (setq dhGrw (/ bhfac lr))
# ~3 P/ i1 H! l7 C$ l - (if bvfac (setq dvGrw (/ bvfac lr)))
$ t# k. d5 k0 m( t( z. Q - (setq angle 0.0)
9 |" c9 v# ^2 l! K7 X2 i - (if bvfac3 u8 H/ @5 \* B' Z/ l) V, J
- (setq distnc strad dv 0.0)
2 ^/ [3 w) s- k8 O* c* d! ~ - (setq distnc 0.0)$ y9 e( O: v9 F/ @* |, |1 S' U
- )
2 }2 v9 `. d4 l2 v8 Z - (if bvfac " }- _( F- G- j- M; | Y
- (command "3dpoly") ; 开始绘制弹簧* x `! ^. U0 s7 c
- (command "pline" cntPoint) ; 从基点开始绘制弹簧
( G1 {: u5 e% y. s& @5 B6 M& o - )
+ n1 d* G2 P( h" R2 `, W - (repeat nRepeat
0 r( [6 L, s( K# F0 {3 |3 D) f - (repeat lr
) H: L+ A' s0 m" b7 O4 F - (setq tp (polar cntPoint (setq angle (+ angle aGrw))
& @5 q) r* J% J1 M: f* y5 G* ] - (setq distnc (+ distnc dhGrw))3 c; d: n8 g; y: @& \! R8 k
- )+ n" K0 A' c" o8 M B
- )% x0 P- n9 _5 s3 P: V& B
- (if bvfac
8 E$ `* u+ R5 R7 e8 H - (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
0 ]# Q$ k* B6 m l. b4 v x - dv (+ dv dvGrw)
, x; O# j J8 _( k- q4 p; p2 F - )* w5 ]. X4 O. |" B4 S
- )
. l$ R7 I% g$ d F - (command tp) ; 继续输入下一点* u- M6 C8 e; ^- T* ^* V( I
- )
0 H: [% w" r B$ c+ T' |2 N% U - )
+ O1 t$ O9 h1 V; ^1 i' N+ | - (command "") ; 输入结束2 k0 `+ i7 I8 h& D* c# b( w
- (princ)' `5 j% S# A3 ?7 Z( H
- )
9 d% H6 G1 Y8 N+ Z3 @0 x# J
: E: A. n0 N0 a- @ _$ N" M- ;;;
# _# |8 y8 U9 a) m& O, d - ;;; 生成三维弹簧函数调用接口
$ K) H6 A1 g$ X - ;;;
1 c+ Z- ~% h1 B! N3 |0 @' [$ |
4 N, d) g* I e9 I1 e- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle)
4 S- r( t+ z: G: v; t - (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复7 Y( K x1 A4 k6 F# ^
- (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复% Z- Q: y# Y! G) g( w
- (setvar "cmdecho" 0) ; 关闭 cmdecho
. ?$ x# c- t2 m& r, w9 n - (initget 1) ; cntPt 必须非空
- J4 L S( F$ O5 N5 N* F - (setq cntPt (getpoint "' Y+ M# G! A' Y- D/ r) n6 E
- 请输入底部中心点: "))
" _& m% v* V5 V - (initget 7) ; RottCnt 必须非零、非空,不可忽略
* {% W, K6 N' ~, S - (setq RottCnt (getint "2 ]; N" c" s- k& S! Q( Y
- 旋转的圈数: "))
8 ^6 q9 o1 o% g) K - (initget 7) ; bgnRdtn 必须非零、非空,不可忽略: v Z$ `. H7 b9 U' m7 r
- (setq bgnRdtn (getdist cntPt "
! E4 m. y) |3 F; T6 K# F9 [' ] - 起始半径: "))
: p1 U, J% {/ R - (initget 1) ; cf 必须非零、非空" ^. X X& ]) [3 \1 _4 O; q
- (setq horiGrw (getdist "2 }! H9 u3 s- X$ v- l
- 每一圈的水平增长距离: "))
* O- M7 Y+ `( l - (initget 3) ; cf 必须非零、非空6 f& l _ E n
- (setq vertGrw (getdist "
% \% T9 X8 A& N* R - 每一圈的垂直增长距离: "))* W# A# T) x |7 r9 v; Z
- (initget 6) ; ptCntPerCircle 必须非零、不可忽略
' d: y) Q: f' m( j7 e: @1 e - (setq ptCntPerCircle (getint "! K! i. z) A0 b5 L
- 每一圈的插值点数<35>: "))
2 A0 W3 b3 P. e - (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
1 e# U8 J% v3 `; v: L. Q - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)$ A# |8 V6 V9 [7 o
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值) k( `* d7 ~1 A' s
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值8 S5 R0 `3 A' L9 T, [
- (setq *error* olderror) ; Restore old *error* handler+ X0 Z. u% y7 a( k& F: j
- (princ)
! v0 Q3 M0 e( q L# j* ]2 `
8 A/ z# N* `& q8 l- ) 2 A' k! D+ o/ H0 m0 }8 a
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
