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" h& O( y n5 r7 |6 t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：! a j- b7 y" f G3 L/ `
一、齿轮轮齿渐开渐开线
4 F* _5 ]; e7 `0 h- 8 g& F, N- y/ Z) O
- (defun c:gear(/)1 N9 U6 J& Y, l0 b
- (0 L/ U+ x! V; }0 |9 o( F
- setq
' i& ~; Z1 J" J' W( Y - p0 (getpoint"输入齿轮中心p0: "), K9 k. K& H* @8 H6 B: K
- m (getreal"输入齿轮模数M: ")
* U' s8 O U# h8 T - z (getint"输入齿轮齿数Z: ")
5 E0 e6 H W6 w5 ]; X9 G - ha 1
! n7 k0 l) T2 I( k9 b0 Q - c 0.256 Y" C8 |" ^2 p/ @. u/ R/ r
- a (/ pi 9)7 c: M% [5 K7 y1 W" F, v' v
- ra(/ (* (+ z (+ ha ha)) m) 2)$ C$ q6 W* Z4 ?1 u* k7 k+ n% J# r5 Y
- rf(/ (* (- z (+ (+ ha ha) c)) m) 2)9 s6 ]; R" x+ d/ N. m [6 I
- r(/ ( * m z) 2)
. t1 J: b" p; Z. \, g6 K* n2 J - rb ( * r (cos a))
r& i8 P/ L& f& c6 \' q; o - ri rb; G, f+ H) l4 C! Y9 L1 D0 o
- ang 0
/ o' _$ p2 t. A - g (polar p0 ang rb). a0 g2 H0 s1 Y: V9 {
- )9 o# N" ~6 |" P# c; Z
- (command "circle" p0 ra)' p$ u/ [/ d3 K5 L$ x# a
- (command "circle" p0 rf)2 o, }) Y; B2 B Y2 C" C
- (command "circle" p0 r). x6 o! I# P8 _% J8 e( }
- (command "line" g)
# X% p# U5 X7 F9 x2 G7 @. Q7 g0 W - % `# O/ R8 Q1 [) |6 Z: ?
- (while (< ri ra)
; c9 p6 `. B1 o" p5 g6 O - (setq8 @9 A9 J# B6 }; w B
- ang ( + ang(/ pi 360))$ v+ z9 ^6 z: Z6 d! F* J- C
- ri ( / rb (cos ang))# p f8 x! F9 [4 z8 B
- cta ( - (/ (sin ang) (cos ang)) ang) e" O* B6 I7 X+ ~
- g(polar p0 cta ri)5 z* N- g) _/ c5 H( M2 s
- ), W$ u) P0 i7 \
6 N8 h: C3 y( r- (command g)( G) e. e6 L0 ]0 {) m
- )+ _. U& [- T9 ]6 m% g1 O
- (command )
( H1 S- E/ v5 h! G - )
# J/ Y. p+ ?/ r$ H2 p7 _* i
! t* Q6 |* H* k/ h4 i: b
' E. b* P' J: ^, c: y0 r
$ k2 m& i6 I- S5 l* ]二、螺旋源程序' |! R# T+ c1 T1 g# {
/ |3 ^% F0 K- b2 o- (defun errMsg (s)
3 `9 h( U9 N$ x# X1 w) }* Q - (if (/= s "function cancelled") (princ (strcat "
/ }$ q+ a) m w. a, }5 G0 l - Error: " s)))4 |# B# x9 W9 U0 Q- i, M
- ; 当命令执行时出现错误
1 ^& S- b1 `- W - (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
. ^8 \) V5 g5 h, b& V) O - (setvar "osmode" osmold)
/ K2 s Q1 S9 O. b6 I, z - (setq *error* olderr) ; 恢复旧的错误处理
. b/ ?% ~# _2 t3 v$ t6 ~% b - (princ)
3 J! n9 s! i l* M; { - ), [# l9 O8 ^6 L2 J; @
2 [7 e' \+ S0 k' [7 F- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle . c3 U2 z# b) O5 ~1 g' H ~5 @
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)% `2 `! R7 w4 m! B* v+ V9 f+ t W# ~
- ;-------------------------------------------------------------------
" R( y$ F0 Q3 C- L: t1 i - ; 获取公制外径大小、螺距总长 e% h; Q( P; i& ^% b& z4 z
- ; 然后计算一系列几何点5 m5 e- D; k( ?, d7 t; B4 O
- ; 并且关闭对象捕捉、命令回显0 Q- [ l6 O$ M' h1 {- z
- ;-------------------------------------------------------------------
/ ^; }/ h* \: ]3 U3 }8 c - (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))
( y2 ~ ~% U4 I+ z" ~ - (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))
4 ?4 `$ W( L* M j+ g1 ~4 W1 _1 a - (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))
" N, O! U. u' V1 p2 w* \ - (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)) * f9 u5 q) I$ U, R/ n2 Z
- (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))
# `$ F" b0 ~; E: B/ q! k - . o/ M" X8 |, h7 t& L/ l
- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值7 r2 f" n# g+ T5 I, i
- (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值
8 X+ E1 S; x w - (setvar "osmode" 0) ; 关闭对象捕捉
5 r) \3 i# ^# j' @' y1 A# h - (setvar "cmdecho" 0) ; 关闭命令的回显
( g; j1 |4 P+ v% G/ v - 2 K8 L, m9 D& S& @* x) U1 f+ _( y
- (setq innerdiafactor 1.5) ; 设置内径系数
% E7 m8 W4 F8 X0 v7 ^ - (initget 7) ; radmid 必须非零、非空、非负
; d2 b& E+ o: i - (setq radmid (getdist "" g& _/ f2 r( K8 u( Z" f
- 公制外径: "))5 g- M4 {6 J n
- (initget 7) ; threadpitch 必须非零、非空、非负' T" r C J0 d& `
- (setq threadpitch (getreal "7 L! {1 q) N) M0 M0 X) B
- 螺距: "))
6 U, p1 }1 f# R9 z - (initget 1) ; ptStart 必须非空
; \2 R- T1 ^* _7 {; h9 O3 Y - (setq ptStart (getpoint "
) o" m. G' H, t& b- j - 起始点: ")): ^9 \; }* o! R5 B, d
- (initget 3) ; threadlength 必须非零、非空、非负* f+ b* y5 V' T' G2 Q) u+ d
- (setq threadlength (getdist "0 X( S( L' S; r4 {
- 螺纹总长(Y方向): "))/ O' a" {/ W {7 [8 i5 O
- 1 L. @# Z. Z9 a8 g: J4 L1 H
- ; 对公制外径添加公差
5 w4 m1 H# F, {1 V; V3 I, F - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置+ M3 ?" V2 c7 V7 N
- (if (<= radmid 6) (setq order 1)+ A3 i" v7 s& Q n y# `6 K7 F
- (if (<= radmid 10) (setq order 2), X5 w+ W' L/ C8 [; ?- g: I' G$ c+ i: i
- (if (<= radmid 18) (setq order 3)( g y( n9 A( R
- (if (<= radmid 30) (setq order 4)
5 D# i5 v: ]- q9 t) ?$ K; f2 w7 a - (if (<= radmid 50) (setq order 5)
" Q, G% v4 J. m - (if (<= radmid 80) (setq order 6)# ^+ ^, V' |4 G- y2 x/ P6 ?% S& W" G
- (if (<= radmid 120) (setq order 7)
5 o8 }9 e, ^" u0 J4 e - (if (<= radmid 180) (setq order 8)! ~3 T: A Z8 F5 b8 \- y3 b% @
- (if (<= radmid 250) (setq order 9)
2 J; }1 E1 j. C. _, | - (if (<= radmid 315) (setq order 10)% Q& C8 T9 @- O" D# n( E1 {
- (if (<= radmid 400) (setq order 11)# x# ~: U) v% k$ x6 F0 m5 [# O
- (if (<= radmid 500) (setq order 12)& K. U' r3 D/ ~; b |
- )))))))))))))/ ?: z C( Z& V# M: |# u
0 |4 B8 } s) h7 ^4 _( q$ t- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带
4 B) Z$ \0 x S7 _4 B* i6 t - (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
* p+ [1 x' p. r3 f5 M! @3 V - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))/ P1 h$ b% f; r' q
- )))* y) t0 A. q- K1 n1 D+ T- A3 u
- 6 q5 S' }' X* R# k, J! b
- (setq h (* 0.866025 threadpitch)) ; 计算齿高
, R& F, h* p: q, x @ - (setq radouter (+ radmid (/ h 4))) ; 计算外径
I( w7 A# q7 _" _ - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径
; {# M- d. M0 V: A& [4 g; n - (setq threadangle (+ 30 0)) ; 计算齿顶角
% G* f- t3 F/ u2 W; E
% Q& t$ l! I& T8 f* S- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数
- b) u" l. Z' t+ I - ' |5 M3 o+ E4 p" {& i6 G
- (princ "
. i N1 q/ e; z5 }, o3 \ - 三维螺纹创建完成")
; x, A! l( B8 K$ \( @ - (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值
% \- g3 t5 @# S: p2 o - (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值# O4 {; |% ?' Q+ v5 K% o* k
- (princ)
- |4 J' b( r; E - )
# o" w. ^+ P- ~7 |" j! [$ _& C% _
8 D! g+ C9 `* W: x* N/ V: E- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
6 s; d3 V' n- c) e, e - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)# L7 q5 j. k% o/ h* e- c, M
- - J% e+ P6 t! C# S
- ;(command "undo" "begin") ; 开始undo步骤6 n# b- s1 n6 d+ u/ N! w+ c
- ; ~5 r( |+ h( r3 F; w2 {- b Q3 T
- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)
; n! a$ V Y+ l t1 r - pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
" O6 O* R1 d7 m' p - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))
5 y/ ?/ d1 F# f3 Y* S - pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)
! ^7 e c9 `& B2 }, b! ]! k; w9 J - pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))% E' h- A6 d- a% h
- ang (angle pttmp1 pttmp3)* ^* v- y( X! C' j" t
- pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)6 X" M# y; `/ M b$ |
- pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))* P% Y& i. \7 X0 D/ q) h" ]- A
- pt3a (polar pt1a ang radouter)5 R# t& |/ v$ G1 K+ @+ J2 W
- pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)- X {& I# Q; z- O6 I/ c
- pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))
5 e" ~3 Z* H, I$ ^. q" T! b& N1 V. V - pt3b (polar pt1b ang radouter)
; n/ C# j3 x' O5 f - pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)$ p7 g$ {4 J& `
- pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)
( \ z% B& T, ]4 |6 H5 C4 I - pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))* l6 |9 u* Y( R" A, m
- pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)
* { [4 C- d0 \0 \. |$ R- M2 w - pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)0 W* P. c ]: W; i+ h. o
- pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil) j: t+ ~" y. r' D% X* ?
- pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))# L: F) K3 S- I! |. G" |
- pttmp11 (polar ptStart (/ pi 2.0) threadpitch)
. z% {: x k6 _3 x- L2 ` - pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))
+ W. w, z% ^3 m1 P - )
+ ?% ~3 A: B" q# N2 ? - 4 D! f* J, {) ~; W6 m8 k
- ;-------------------------------------------------------------------
% {- F) r- B# x% |6 g" Y - ; 绘制两个倒置的并偏移1/2螺距的圆锥: J) K$ n" _& z8 l1 O5 k
- ; 这两个圆锥都以中剖面剖分
3 s3 J u# y6 y+ _% B2 R - ; 进行并集运算 P- ?3 d* [6 P) q% E9 k
- ;-------------------------------------------------------------------
* h' g+ D) ?9 f1 v. m& u% B - ! m* D2 D; G( L) e) ~$ Z! t
- (SETQ startcone "order")
7 Z2 e. U' y* @2 z* R! g/ Q* d" J - (SETQ endcone "Y")
5 t+ @/ D+ A/ B7 P0 E M$ j - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)
% T7 e7 V% }4 D
: x, c9 d( d! b: {: M- (princ "
3 W' [" Y& \/ T0 o8 L - 正在绘制三维螺纹，请等待")
# T& [3 z* x! Q* s$ y - (command "pline" pttmp1 pttmp5 pttmp6 "c")% G! A2 _# Q1 E1 Y/ ]/ r
- (command "revolve" "l" "" pttmp5 pttmp6 "")! g( `: q2 e, ]3 L# U& X4 v
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
. P2 u3 m0 z8 C* @2 x - (command "slice" "l" "" pt1a pt3a pt1az pttmp3)# u G6 K$ r6 j6 A* `; q
- (setq tstmp (ssadd (entlast)))1 {7 u3 _3 W- l3 ^
- (command "pline" pttmp3 pttmp9 pttmp10 "c")% O$ Y* e+ O4 o, A* e* T7 w8 N
- (command "revolve" "l" "" pttmp9 pttmp10 "")% ]5 Z1 Y% l6 B' L1 ~/ B
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)
; G9 i! v+ g$ Q- Y. E5 q1 u( G - (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)+ {$ a, f' y* h C9 c4 Z5 t1 E L
- (setq tstmp (ssadd (entlast) tstmp))" V l$ b/ z# W
- (command "union" tstmp "")
3 H4 u$ d0 `& w K' n - 2 {8 R; a+ a& u5 K8 v/ D* B
- ;-------------------------------------------------------------------
3 A% Q" E j' j6 K8 | - ; 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
# ^6 B% ^# G. U; F( B - ; 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- r# N# Z8 {' N: A/ o" P4 j
- ; 在最后一步被切除( @: o# w! I2 M$ [5 ?
- ;-------------------------------------------------------------------
7 A# x8 E h, z/ g! N - + ~7 d) o$ E. @& `% Q7 v1 H
- (command "slice" tstmp "" "xy" ptStart "b")2 H S! f- Q! E
- (setq tstmp (ssadd (entlast) tstmp))
/ k& R1 A! I7 j s/ I0 g, l! i7 E) l - (command "mirror" "l" "" pttmp1 "@10<0" "y"), U" y9 ~5 l% |# U' M7 G5 j8 b$ c9 y
- (command "union" tstmp "")
- T7 U8 t4 F7 o( c+ A: [& X2 r8 D
& x: c3 T, l0 Y* v% `4 f- ;-------------------------------------------------------------------, O5 v+ z, ^" c" e2 z3 {; x, B
- ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）
1 A p3 G* K2 V4 ]8 J - ; 得到的实体再切除到指定的螺旋高度% O8 x; }, [8 s* I8 I% k
- ;-------------------------------------------------------------------
- q2 {1 ~) ]1 r4 a# c - 5 c Y/ V7 h. |. p$ p
- (setq e (entlast))
2 `5 z- |$ J5 r+ j2 J2 n4 L) ~ - (command "array" tstmp "" "r" ttal 1 threadpitch)9 v& y \ M7 g
- (repeat (1- ttal)
. @8 [5 }* j5 w6 L o - (setq e (entnext e)/ K5 l6 b* L" L4 ]$ g5 a
- tstmp (ssadd e tstmp)7 U! k( I- @9 z% A4 e! o1 p
- )
% N/ N* H+ t. H1 h. \ - )
- x" \2 s3 }4 C7 t G3 p - (command "union" tstmp "")
R5 r, L! g8 _% I$ n5 D - 6 x6 n; n3 R' V5 h
- ; 若开始创建45度的圆锥
. N t3 v: w7 e3 @ - (if (/= startcone "order")! e, D$ u8 ^+ x& _; i% f
- (progn (setq e (entlast))
, d6 F1 a! M6 p) Y( q8 g) ^ - (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))8 i9 F1 j, }1 P% [9 X, O8 H( [
- (command "union" "l" e "")- ?+ A b' w& T! j) o( m
- )& J1 C" i" D) I# }! t! {' t/ i! }
- )/ Y; t" e* }, o
- 3 T, t$ ~! n, ~3 }9 ~5 E- w
- (command "slice" "l" "" "zx" pttmp11 pttmp12)
# E. M6 S% A, X" ~ - (command "slice" "l" "" "zx" pttmp12 pttmp11)
; P0 ~% K7 p% A! r - (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart))) " m, ~6 `, o- {: I7 u. L) N3 a
- " S4 x) E: d# Q: f2 |
- ; 创建最小直径的圆柱体，然后与螺旋作交集1 M& K8 K! |5 I6 T+ h# }
- (setq e (entlast))! z* R+ x" u* Y% u
- (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))). W0 i' G/ s9 w) X: e U
- (command "union" "l" e "")
& f) p4 @) w7 _$ r* y - (setq tstmp (entlast))7 T) [" V" f8 D4 I1 \. r
- ' v% p$ k( h) Q% b' |) C. m* T1 `
- ; 创建中空的圆柱体
. z( }0 ?( a; E - (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia0 G- k% `' v4 _
- (setq e (entlast))8 d+ ^ S) J3 A; i& [- o. @
# e$ e" x0 ~6 y- ; 若最后创建45度的圆锥% D- b4 p# w9 s& l4 I
- (if (/= endcone "order")' x+ B2 P6 J1 K% k) a5 B( {; p2 k
- (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) - g, v8 g, m/ e& ]- X3 N. h: b
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart)))
1 } s5 K$ D2 e* L - (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))
/ |+ X# e6 b! u' | - (command "union" "l" e "")
+ k6 B1 N( X4 m5 a$ ?% w4 P& K - (setq e (entlast))
: ]4 V( q$ k1 z# j - ). P( f, Q3 O$ n9 i3 e( N) E3 w
- )
5 {! s+ Q+ {2 S- G* @
. j9 J) q5 [4 g' i, y- ; 从大圆柱中减去小直径圆柱+ o; h% g6 r2 h D8 i
- (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
0 K# p6 T8 Q5 K f# O# q - (command "subtract" "l" "" e "")
0 n% X( l% y" j1 l - (setq e (entlast))
; E; p% c, x: V! K* U8 ~
# q* f o+ U4 O) n- ; 从螺旋中减去圆柱
' L6 p; {, h& U% j$ d$ O - (command "subtract" tstmp "" e "")8 ?$ G( @2 U) P
- ; t, o# g8 B/ M2 z; g9 B
- ; 如果螺旋长度为负然后镜像( a! o: h* x, t5 c* E
- (setq e (entlast))0 Q( O ^- e7 I) k& c/ a* k1 U
- (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))
6 s- P5 Z& A5 ^( L) R) I
- P# V0 l5 e) Y+ O8 o; ]& V8 @- (command "zoom" "p")
S8 f. c; \( V1 M: X$ z w - ; (command "undo" "end") ; 结束undo步骤
/ [( V8 V2 O* j) r - )
; h5 h6 P9 F& D+ z6 } - # g+ f& t+ t" @% q0 }
- ;;;---------------------------------------------------------------------------------------------------------------------;
7 \* N U3 m: ]' x - (arxload "geom3d" nil)
8 i' `; O3 ~2 U7 g' d6 a6 l - (princ "5 _( ~- v Z, a6 ^5 Z8 A
- 3DThread 已加载。 ")
& q& u2 X! ?9 T, f- R - (princ)
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三、弹簧源程序 Q' t8 v8 J5 p; _3 F4 z% k: d& y
- (defun errMsg (s) ; 当命令执行时出现错误
0 p$ |+ D1 ^- r6 x6 f. r - ; 例如用户按下了CTRL + C
" ]& @& s f- k2 A7 M6 h - (if (/= s "Function cancelled")
1 a! s2 A& y! e- y2 S9 M$ T - (princ (strcat ") [& ~% h+ t0 b7 T3 X
- Error: " s)): l7 B' {) @/ q) b/ l; i" r. U: f! P% r
- )6 r) F' w/ \3 G
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
- A+ A4 G4 \2 P1 h* w0 x( Q - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
8 V8 {2 i" i3 }1 B3 k% j: P - (setq *error* olderror) ; 恢复旧的错误处理
3 D: }; {2 \+ d, v( y- j- z - (princ)
# O, \9 n) j8 E& K3 { - )/ c3 M( z6 x& v; L e4 s/ R& b+ l
# L6 v! G9 i9 |1 C$ Y {' q- (defun spring (nRepeat cntPoint bhfac lr strad bvfac. a( g6 o5 N% v+ d7 h2 {+ _. D
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)6 C3 Q! |, ^- j6 g; Q- W
3 K. U* s f4 W7 ^# k+ ~- (setvar "blipmode" 0) ; 关闭 blipmode
# [! a* R; B5 L' O. p - (setvar "cmdecho" 0) ; 关闭 cmdecho
, Y5 a1 j8 D2 b) O# e5 H - (setq Pi2 (* 3.14159265 2))
5 x, d* J) Z e! y1 Z - (setq aGrw (/ Pi2 lr))' x( Z4 [8 Y6 C# J
- (setq dhGrw (/ bhfac lr))9 f9 f' \4 g1 y; ~$ Z
- (if bvfac (setq dvGrw (/ bvfac lr)))* H( d# B6 b5 l0 `" c, }: ?# Q
- (setq angle 0.0)( }' p% V% f1 p$ G, h) o+ h
- (if bvfac
9 P4 N0 ^$ C" b# A - (setq distnc strad dv 0.0)
# ~! X) o" d' _: s0 w3 c& `$ { - (setq distnc 0.0)' T/ A! d, K+ D; ~# `: m( Q9 O
- ), M; O' I# I7 z) `0 j/ Y
- (if bvfac & B! l9 @% `2 l, Z1 f: t9 w- d5 A
- (command "3dpoly") ; 开始绘制弹簧
! Y* V( Y: z$ f- ~1 h# r5 i - (command "pline" cntPoint) ; 从基点开始绘制弹簧
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- (repeat nRepeat
8 J; n8 F p/ B& p* a& S - (repeat lr 5 b: q" w3 J9 d. _: L
- (setq tp (polar cntPoint (setq angle (+ angle aGrw))
' l" a& x) C5 g9 W7 n6 i+ C, ]/ f - (setq distnc (+ distnc dhGrw))
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- )5 ]% A$ L) ^# e8 V! X' a+ F
- (if bvfac3 b3 M: R$ i# G! q* `4 s
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
% S/ m- {: [4 V - dv (+ dv dvGrw)7 U& k g' `! ]2 D- p* f; G
- )3 X* {# l @$ [6 z5 F z
- )
9 M( q* ~( a$ ^* y& R - (command tp) ; 继续输入下一点; J* Q9 E7 N3 p2 F0 z+ K
- )
% M- a% R% c1 d0 c; V1 N - )
; U4 b6 I3 i7 z- E5 d - (command "") ; 输入结束9 z+ e* ~& c: _) c
- (princ)% h2 C% C* ^$ G. R* f
- )
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- ;;;3 f( ~8 t' m6 D# H! g$ n
- ;;; 生成三维弹簧函数调用接口( O( w' N m1 K
- ;;;: q; w$ f5 o3 e0 Y/ T
- ( b! P/ x. n' s5 n$ I# a" C
- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle)
% H' D9 \5 [% B3 u$ k1 c! \) p - (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复3 E1 E" t& P* c V$ b7 _5 H2 R
- (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复1 t( \, y* c, H1 G8 r
- (setvar "cmdecho" 0) ; 关闭 cmdecho + |; {: f4 f4 V! h7 k
- (initget 1) ; cntPt 必须非空
" b0 m5 {) S, R- h - (setq cntPt (getpoint "; n' V; R: W2 T/ d. }8 m- o- J
- 请输入底部中心点: "))
; e2 S9 b2 S! ~( W- c T - (initget 7) ; RottCnt 必须非零、非空,不可忽略' C; ?! L, }4 M) V8 p
- (setq RottCnt (getint "- }6 {) f2 q1 A: u0 @ D i. E9 o
- 旋转的圈数: "))
. H6 ?. h J& E2 w f - (initget 7) ; bgnRdtn 必须非零、非空,不可忽略+ j$ g" S# u/ U: ?: t" V5 A+ c$ E+ t
- (setq bgnRdtn (getdist cntPt "$ b3 X$ {4 y# J) X& D& A
- 起始半径: "))- |7 w0 [2 ?5 \/ X
- (initget 1) ; cf 必须非零、非空* D4 @9 X. r% ]3 J3 z
- (setq horiGrw (getdist "
6 B+ C5 v( e3 d U1 ?( L - 每一圈的水平增长距离: "))0 J5 u% Q% N j$ r; T5 M+ }- p L3 P
- (initget 3) ; cf 必须非零、非空 B3 m$ Q1 u1 M" ~* L8 n
- (setq vertGrw (getdist "
) b6 g/ r C7 } h' i - 每一圈的垂直增长距离: "))2 B+ i. D: ~9 w: L5 Z/ G2 S
- (initget 6) ; ptCntPerCircle 必须非零、不可忽略) M3 y; ?% x2 w9 Y. z
- (setq ptCntPerCircle (getint "
1 Y2 ~$ j5 O: U: S - 每一圈的插值点数<35>: "))8 j9 E; k1 Y7 Q' I
- (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35))) ) q0 I( D5 S% K. u; K) f) X
- (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)" d; G$ J; ]' Y4 w
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
; g, T4 l6 L- v6 M) K - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值% L: y0 n6 A* O. a5 M3 _8 |; }
- (setq *error* olderror) ; Restore old *error* handler
, r9 Y5 y$ u8 _+ G8 n( K - (princ)
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
