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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： e% \6 H: d. U9 [5 o+ P" ]
一、齿轮轮齿渐开渐开线
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- (defun c:gear(/)
, m$ Q4 K: I8 C7 b9 B' Y3 ^ - (
/ K5 {) r* V; \% B, {* C) V, f5 T - setq
/ S v) f# u0 G3 S) q0 ?* {9 h - p0 (getpoint"输入齿轮中心p0: ")
7 N5 B9 ]9 Z3 Q) q+ I' v0 f - m (getreal"输入齿轮模数M: ")6 P. l0 H- p+ a+ B/ h f, a
- z (getint"输入齿轮齿数Z: ")
r- K' C% |# A" G. ? - ha 1 `% x! b* \- V( w
- c 0.256 C& D4 ?" a) R7 V
- a (/ pi 9)
$ {$ O& v# x1 F. Y0 G/ E5 k6 Z3 n - ra(/ (* (+ z (+ ha ha)) m) 2)2 G" c+ v- F" O/ N/ e9 g
- rf(/ (* (- z (+ (+ ha ha) c)) m) 2)
& }; n6 T7 K: R4 }/ Z; [/ v - r(/ ( * m z) 2)5 q7 ]$ s+ X f9 W
- rb ( * r (cos a))8 \" U( z; {% f
- ri rb$ |) ^* ?0 `" [! u& \
- ang 0
+ B3 W( g9 Z. g) y' T, M - g (polar p0 ang rb)
1 a, q8 t5 G! O! J - )& a' z- W( Y: l! N9 p; m
- (command "circle" p0 ra)* s C6 N/ s3 V8 B; p
- (command "circle" p0 rf): K) U8 O7 [, |9 d7 M
- (command "circle" p0 r)
7 u- {+ i, @$ v- }- R# h+ s4 a - (command "line" g)
8 a. x8 K6 O% p - , \. u5 I$ l$ U
- (while (< ri ra): b. m; ?' h: v- l+ ^* A; i
- (setq
1 ]1 {" [( y" V* _5 c3 P% S, C - ang ( + ang(/ pi 360))
8 X H/ ?4 [5 R; i: r+ J - ri ( / rb (cos ang))
1 U ]' p" @( X" i6 Z* p - cta ( - (/ (sin ang) (cos ang)) ang)# ]" Y/ k2 A4 m8 F
- g(polar p0 cta ri)
" J k* F+ @6 i8 m: \; S7 D2 W - )
( g/ ~, f* p9 j$ ]5 t! ~0 V - ' y1 M* T h% K9 k4 E1 b
- (command g)
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- (command )
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- o7 A9 G& c& m% e% y7 R& ?二、螺旋源程序& ?% e9 ]& f1 \7 j
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- (defun errMsg (s)
/ [' ~) a& N8 N {1 b) H - (if (/= s "function cancelled") (princ (strcat "
% X8 N: B0 _: X3 z, K+ Z; _ - Error: " s)))" n' F _! [1 D( H# I
- ; 当命令执行时出现错误
' i; k5 l# R" y; s* k5 i: p& O - (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
* c6 _. Q+ L/ A - (setvar "osmode" osmold)- K, B! ?, k& l: N9 a# _
- (setq *error* olderr) ; 恢复旧的错误处理
- ` I, n6 z& C1 c0 {3 t. ` - (princ)
3 |" S8 s. N8 y0 L - )
' ^* Q( O9 I8 k6 q' |; s0 V
8 K% h$ T9 x) K- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle % V; d* `2 @+ T0 y
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
" r' T4 u$ ^3 g0 ]3 L! f - ;-------------------------------------------------------------------
e/ E8 [' E8 e1 i - ; 获取公制外径大小、螺距总长3 [% y! R% x% S1 I
- ; 然后计算一系列几何点6 h) Q- v- q% D6 A5 q
- ; 并且关闭对象捕捉、命令回显3 w/ P1 F, V; g& b; G
- ;-------------------------------------------------------------------
9 m- e7 M+ a+ ~3 L6 D6 o - (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))
9 z. V3 u- i3 s } - (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)) - [0 n3 r+ O( I& ~& G. M! e6 b. L
- (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)) 5 q3 b- h& V1 _1 s- A
- (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 ]+ T8 t* D5 e4 y6 w" H - (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))
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3 S5 y6 `) R; v8 n5 s- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值8 D5 u( a' L( k
- (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值
1 G4 Z2 d) c- ^- T2 Y" E - (setvar "osmode" 0) ; 关闭对象捕捉
' C8 z% ]: R8 _0 }8 N - (setvar "cmdecho" 0) ; 关闭命令的回显: a# q Y( X- O0 a& h! s6 z
- . D# I* \. |: t! x; J3 [
- (setq innerdiafactor 1.5) ; 设置内径系数
- b9 W3 c) O; s5 y# F - (initget 7) ; radmid 必须非零、非空、非负
: p! m2 K6 _- Z4 S( O - (setq radmid (getdist "
5 k' `( }) s- ?' N4 u4 p2 n8 i - 公制外径: "))
4 G5 Z! p9 J) s% z: j - (initget 7) ; threadpitch 必须非零、非空、非负
, c/ [. {0 \ }$ V" G4 ^& y - (setq threadpitch (getreal "- s+ e. ^9 v- g1 a
- 螺距: "))/ ^+ u: N" {" U$ o) S/ W, t1 H8 s% X' v( D0 z
- (initget 1) ; ptStart 必须非空
& V5 y% }3 M% X - (setq ptStart (getpoint "
! M: K9 n! U2 `# @/ ? - 起始点: ")): k& T$ O& Z- f5 \( }
- (initget 3) ; threadlength 必须非零、非空、非负
' ]1 S$ W. P; x3 a* R' D1 h$ p - (setq threadlength (getdist "$ N5 R: B- x5 o- V5 `2 j
- 螺纹总长(Y方向): "))
/ n q3 G' S. c$ _
5 Y& p- [* ]* d" m% _6 ?, X- ; 对公制外径添加公差, ^2 L" }6 u4 h) t$ G: {( P
- (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置
+ m& ^8 f$ J/ c/ n0 M' ~' n - (if (<= radmid 6) (setq order 1)$ [. s( C& o- f9 }" C/ q- l
- (if (<= radmid 10) (setq order 2)
2 U' G/ ?0 j U/ {0 r - (if (<= radmid 18) (setq order 3)
8 u9 X4 Z1 R1 Y% r: L: t. d7 E - (if (<= radmid 30) (setq order 4)
# S; w/ d+ T F5 W8 R1 o- b - (if (<= radmid 50) (setq order 5)
1 W" H: K# s; u8 x) S - (if (<= radmid 80) (setq order 6)
/ W3 Y) K8 a Y/ K/ A1 ~ - (if (<= radmid 120) (setq order 7)
: l. ^+ B4 F' P' Y - (if (<= radmid 180) (setq order 8)
4 H/ ^8 G0 A% I - (if (<= radmid 250) (setq order 9)
9 x( k; ]( B: i5 Z - (if (<= radmid 315) (setq order 10)9 ~2 }9 p1 {- T
- (if (<= radmid 400) (setq order 11)9 M8 s- Q1 _- J* b2 k
- (if (<= radmid 500) (setq order 12)
- a) d) s4 [) P7 c. d# v - )))))))))))))) ^1 q* M: p: ^, C3 A+ s
" W* C' g1 }! L1 B) G- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带3 V& f; a- @8 L6 O( _% }
- (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
- k& Y! o2 Q* D6 y/ I! M - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))
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-
1 ~$ C# A9 S! P# E - (setq h (* 0.866025 threadpitch)) ; 计算齿高
! A1 F* z9 L$ a9 f7 P8 D5 H - (setq radouter (+ radmid (/ h 4))) ; 计算外径; ]& y- m9 Y H. s" \
- (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径$ B7 Z/ J8 b; Z U, @
- (setq threadangle (+ 30 0)) ; 计算齿顶角* ]6 r+ A3 H7 {1 r) a$ b. G
, Y8 K! L7 T5 O+ @" c# v- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数+ G; t7 j. L% ^# j r5 |, [
- ' e! M2 [: Z4 N7 i0 F
- (princ "( s- ~* {: f& [. a! J0 g! S. D
- 三维螺纹创建完成")
" w3 Q* x4 S2 A' ` - (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值+ h$ q9 w% m5 v6 A6 Z4 h
- (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值
0 D* s* J0 r$ k% S( i! a) @- D( [ - (princ)
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- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a0 i+ [8 ?, q! w, | O6 e
- pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)
" A: p& { z1 c* U- | - ! V1 G2 ?! e$ T; m! _: t
- ;(command "undo" "begin") ; 开始undo步骤9 b6 r& H$ ]7 N4 x
+ }# L, A4 ?- R3 Z. d6 i- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)
7 M2 F$ n+ F- {3 q0 y0 Z+ a - pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
. |$ a- z' A5 e$ h - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))7 s" E9 m* }5 q- R( c2 x8 }+ z1 U
- pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)
x f7 z! h& l - pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))+ k2 R& |* i& O0 q
- ang (angle pttmp1 pttmp3)% n, c* u" M) e/ [1 U8 s; |3 V5 i' ]
- pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)
+ a, n2 B6 F$ n* f% S - pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))
. L7 b' M: W$ O3 ? - pt3a (polar pt1a ang radouter)1 U& d% G, {# y
- pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)
; M$ B9 m C: i6 ]8 k - pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))
* S2 g& l+ Y- \9 U, x3 ? - pt3b (polar pt1b ang radouter), m, g4 [/ g2 {/ e# q. V \' N
- pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)) s% y3 J' `. s9 Q5 b) z) e9 E
- pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)
% g* R7 q0 n( t0 o - pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))
- }. }5 f4 i/ y( A% l+ r - pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)8 |! E) G$ m3 Q, ~# ^
- pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)
7 @2 T2 N# z: H8 Q, C& W5 H S - pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)
" R$ G. T3 `$ O' i- h - pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))* P2 K( Z& @' i
- pttmp11 (polar ptStart (/ pi 2.0) threadpitch)
0 Z6 [/ M; M1 r* s - pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))
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: _1 Q; F9 J# S4 P6 g - 0 D5 i, b: X: w; g% j3 l# W% s
- ;-------------------------------------------------------------------
2 t+ j$ |% ]! Y6 Z [+ C - ; 绘制两个倒置的并偏移1/2螺距的圆锥
) v% N C- ^! E6 B - ; 这两个圆锥都以中剖面剖分" @3 l' l; l" G f# W
- ; 进行并集运算
1 P+ M! W: b9 n. H - ;-------------------------------------------------------------------: c1 Q" }( K9 C1 J+ q- }
' p( x* d" _: A @, K- (SETQ startcone "order")9 ]' C- G' q) B* r( j
- (SETQ endcone "Y")
0 X. Z( r% ~; ^' H; G' a - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)7 v! [6 u5 O& w- ], Q8 {9 ^; c
- , h: c3 G& a& s2 M' n5 k
- (princ "
, _% k/ b+ N! v" {5 I - 正在绘制三维螺纹，请等待")
5 q: C# G2 e$ {5 b0 h* F; o - (command "pline" pttmp1 pttmp5 pttmp6 "c")! L! F+ i0 p3 B
- (command "revolve" "l" "" pttmp5 pttmp6 "")9 r% D2 B ]* g
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5), N% ]7 W: V- a) E& V. b
- (command "slice" "l" "" pt1a pt3a pt1az pttmp3), q; X5 R! q8 t' k
- (setq tstmp (ssadd (entlast)))
9 e9 `" L. b% ^3 N - (command "pline" pttmp3 pttmp9 pttmp10 "c")
7 z& [) w+ x4 v - (command "revolve" "l" "" pttmp9 pttmp10 "")
/ n) D% @8 b0 c" m - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)6 Y+ R* u4 S f: M% j9 W
- (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)
! l; s: h2 i$ }4 G - (setq tstmp (ssadd (entlast) tstmp))$ I. j2 K. H. P9 O8 i; C2 Z5 D
- (command "union" tstmp "")
3 M1 v( Z$ P/ L2 C5 i
. A! g% T3 c+ K- ;-------------------------------------------------------------------8 \) m! E' B5 B; 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
, S/ R3 @2 q2 |0 S, V - ; 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; L0 m9 n/ {0 l0 A0 L
- ; 在最后一步被切除1 @8 q5 b$ K% y
- ;-------------------------------------------------------------------- D3 [2 K/ y' H: E) K" Z( `
- 5 K: [( L( ?/ |6 M9 e$ }9 A, Z- D
- (command "slice" tstmp "" "xy" ptStart "b")8 V% P& O: g7 y' V6 Y- e
- (setq tstmp (ssadd (entlast) tstmp))
9 X" \" a# a. F2 g - (command "mirror" "l" "" pttmp1 "@10<0" "y")! b( b1 C5 W+ X0 E5 |
- (command "union" tstmp "")) d. S2 n) m# v0 u7 k
) S" p7 [* u4 d! `- ;-------------------------------------------------------------------1 ?* k% Z H* Y
- ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）/ R- z0 m0 q& \1 |' x) ]' t& L- f, F
- ; 得到的实体再切除到指定的螺旋高度3 {+ H( J. O; ]5 x' S( [
- ;-------------------------------------------------------------------& H2 C' P. `/ C, `
- ! T! y4 }! a7 o5 ]6 H+ p. o
- (setq e (entlast))9 x( V; w4 T( Z; [% ?2 s; I, D
- (command "array" tstmp "" "r" ttal 1 threadpitch)
: n, o, }0 l8 o4 c, a$ m, ? - (repeat (1- ttal)2 b& S, J3 b, X) A
- (setq e (entnext e)6 s' T7 |+ P/ @; P7 K% L6 V
- tstmp (ssadd e tstmp)
- g$ s2 Y! N( Y& r - )/ f9 f& H% Q# P. g3 {: Z. K
- )
% f6 K: Y9 o) c0 Z" ^ - (command "union" tstmp "")
, Q7 w4 O8 j/ y8 e! k& [8 D
# A: [1 e! v) K" K: ~5 G- ; 若开始创建45度的圆锥2 j+ v4 J4 |0 Q( C9 e9 A- ?0 P0 I9 V
- (if (/= startcone "order")1 @/ u( w0 u* f) w* F; B4 K
- (progn (setq e (entlast))
: j- L0 C0 R0 s) X# H, n - (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))
9 ?1 H+ D- U# S+ u) Q' ~ - (command "union" "l" e "")
0 K0 `# c! M: [% s1 y4 e8 p - )
2 Y- m# u: h8 X, f- R+ h' P - )) ~4 V1 x) |4 p$ _
- & {( T3 {) C2 T3 r
- (command "slice" "l" "" "zx" pttmp11 pttmp12)% r# }9 j/ z1 H% Q( p9 P' x$ A
- (command "slice" "l" "" "zx" pttmp12 pttmp11)
/ _9 Q) K+ W9 f, e) z - (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart))) * y Y, g4 e6 S9 b# T
; q8 Q, G9 E4 ^# `2 z- ; 创建最小直径的圆柱体，然后与螺旋作交集+ E/ X4 l, C6 }5 I! L& X
- (setq e (entlast))
/ g3 D- K0 {4 [ - (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))) s( u7 S2 h$ b/ O
- (command "union" "l" e "")9 m4 L, @# o, }& ^+ s9 `2 R ~
- (setq tstmp (entlast))
' \! c8 _4 S9 ?% g( \ - / M$ g) Z( c9 { p. y
- ; 创建中空的圆柱体- E' J9 E' ~* s: Y0 m. h
- (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia/ P5 g+ l; v9 _9 K# X3 s
- (setq e (entlast))
% X" O7 _" I |4 M3 {
' T% s d2 m' q1 K l3 n4 U$ z- ; 若最后创建45度的圆锥. G9 o4 q( p3 z; d \) H
- (if (/= endcone "order")8 _& _0 i' s) b: Z* @6 C- T
- (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart)))
6 s! J$ Z' k% l( z# e+ h/ y% r - (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart))) 7 Q$ B3 |7 v& J! [/ y6 K9 X6 \
- (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))1 H+ Z, A' X# q. u0 o4 c
- (command "union" "l" e "") 9 k8 t! W0 J0 j# t5 G* v
- (setq e (entlast))5 p' e8 P8 v( B, s8 ^0 i
- )
2 Y4 G" i8 H( |( W - )" ^3 w" E2 [ T3 V$ ^" t4 [
6 k8 G4 F$ R( F. g' ?/ V. r2 [- ; 从大圆柱中减去小直径圆柱
0 v, v( L; q! Y. |: l) r, K1 } - (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))- f; T0 q0 v: K/ W
- (command "subtract" "l" "" e "")( j+ T9 b7 E/ b. S2 M
- (setq e (entlast))
9 ]/ n; X* Z/ l) r' G - 6 f; K2 Q) {9 ]
- ; 从螺旋中减去圆柱' S6 ?+ g" \0 ?& x, e) P# f
- (command "subtract" tstmp "" e "")9 p# T! m' V! g6 Z& H* g$ H
& _$ @$ _: F J( M# h+ d5 n, R& @$ I- ; 如果螺旋长度为负然后镜像
% q% N, Z* J6 I# X# `, Y/ I [ - (setq e (entlast))
8 J- U0 W1 u7 p# t - (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))
8 }8 b# Q5 }/ u9 @. @ - - }. U! G7 c4 ^' U
- (command "zoom" "p")
1 i; {8 L9 p, P - ; (command "undo" "end") ; 结束undo步骤9 R. @% G$ z$ s$ b
- )
L( D' K- A/ L. J. u' k6 H+ q - + J: |) N4 }4 Q. T* g
- ;;;---------------------------------------------------------------------------------------------------------------------;. g& c. v( I S1 C' Y
- (arxload "geom3d" nil)
) T) }. g4 w% X. [, f; I - (princ ": ~6 v' D W1 t1 H/ o5 d% n, K0 K
- 3DThread 已加载。 ")
/ i5 S5 X; {' l+ g - (princ)
/ N6 g4 b8 ~5 [ D$ r5 d
& E2 w$ ?3 l" s! ]
+ q& S' B X( A: ?, n* @三、弹簧源程序5 F: g4 Z0 D) j% z) K3 F3 c' C
- (defun errMsg (s) ; 当命令执行时出现错误
8 \& l) C" ~+ K0 }& j" { - ; 例如用户按下了CTRL + C( O$ }8 _; O4 F6 {/ H* i- h r
- (if (/= s "Function cancelled")
7 V9 p6 n" L; N3 p6 x - (princ (strcat "8 l- r3 B0 D9 P- ]/ S( A+ S
- Error: " s))
! P# o+ z+ _+ t% n& ^ - )/ w7 L# h: b" v1 U: l: {
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值, ~2 e' v+ a2 m) P$ S
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值8 Y9 c/ [2 P7 Z2 U2 ]
- (setq *error* olderror) ; 恢复旧的错误处理
! o9 c% z2 y! r U7 u5 u" P" J) G% G! i8 [ - (princ)
: S. Y( W. Z) }% z+ o f. ] G - )
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$ }0 P2 A9 @. {* v$ N5 C/ I+ ]- (defun spring (nRepeat cntPoint bhfac lr strad bvfac! B8 O- f/ ]: ?
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)
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- (setvar "blipmode" 0) ; 关闭 blipmode 3 r8 B2 @2 I4 u6 D
- (setvar "cmdecho" 0) ; 关闭 cmdecho
: l' K, p; `* w# t9 `) I8 D - (setq Pi2 (* 3.14159265 2))
- D" _! n$ L! D2 {2 r5 h - (setq aGrw (/ Pi2 lr))
3 H3 C* k6 J) _. X - (setq dhGrw (/ bhfac lr))
2 s# T! F- j1 t% k6 l8 M - (if bvfac (setq dvGrw (/ bvfac lr)))
n+ v& ]( U, U* s - (setq angle 0.0)
/ B% Y. H4 C, H, e8 S - (if bvfac! l( s' Q1 z% k$ p& o# t
- (setq distnc strad dv 0.0)
$ J. ?! N; e- X, {! F - (setq distnc 0.0)
8 F2 w. H' }+ I6 I* l7 [ - )
/ f* e. @/ b5 Y$ t - (if bvfac " u1 k! p# v: o* g: S
- (command "3dpoly") ; 开始绘制弹簧
7 d1 C: \2 i& G. @9 y* h - (command "pline" cntPoint) ; 从基点开始绘制弹簧
2 o% {% U2 A! H8 k - )
f1 R6 S( m3 P0 h% L1 E - (repeat nRepeat
+ k! i" N/ R( h" _9 r: F7 t+ G - (repeat lr & R9 O. f& a$ M2 O/ P
- (setq tp (polar cntPoint (setq angle (+ angle aGrw))% D2 g8 V, T e; t U9 R/ W
- (setq distnc (+ distnc dhGrw))! P0 ]' \6 f/ M! e e1 C
- )* S7 \! f1 S/ |$ } z1 \
- )
) @( R. A4 a5 s1 v! `1 t& p2 N, I - (if bvfac" V, f5 q5 q, I7 |) N7 C1 e3 f
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
: v0 |. Q7 L( D k: v - dv (+ dv dvGrw)6 T! |2 q2 P. Z) S
- )
7 w+ W. s. e+ }4 v - )
! q6 m/ N6 s' e6 \ }# x: M1 _2 t - (command tp) ; 继续输入下一点
+ T! [# V' r# [ - ). W0 s9 A# ?. ~& _$ V
- ) 2 s9 O( h9 Y' N% g9 P5 |7 \! t
- (command "") ; 输入结束
& t4 Q$ h. O* O, i3 s% H0 |" h6 u2 T - (princ)
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- 2 @8 K3 _' w$ s4 X3 Z- F2 j1 i
- ;;;
: G3 B2 S& A* Y4 K. h - ;;; 生成三维弹簧函数调用接口
6 R. x. F7 y3 x# Q, J" _6 S: K* e - ;;;) I! |+ o" v+ ]5 d: k$ N$ l" W
. @8 s9 J; h. L- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle)
; P& G/ }8 i" e ^ - (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复6 \' @) o3 J4 ^ i& K8 V$ G' S2 V
- (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复
& N6 M. p1 y" C7 L- U! p: V2 Y - (setvar "cmdecho" 0) ; 关闭 cmdecho
. j- R" V' \) b1 z7 |7 A) T( K - (initget 1) ; cntPt 必须非空: B7 z8 T" _6 z% ], I# Y6 J# o; t) W
- (setq cntPt (getpoint "
5 ], A" {& m. H# Q6 Q, V8 p+ |6 ~' F7 T - 请输入底部中心点: "))
0 V2 f! H( r( `( V - (initget 7) ; RottCnt 必须非零、非空,不可忽略
" l. v. W0 G7 I; M - (setq RottCnt (getint "- K; H6 V+ S; x, T) {1 V3 O% E
- 旋转的圈数: "))3 h0 K) H& j" r8 y9 F. W
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略( _# u0 D2 H% F
- (setq bgnRdtn (getdist cntPt "
0 y! K" V2 ?2 D& r - 起始半径: "))
; \( `2 P t' F% u - (initget 1) ; cf 必须非零、非空7 j7 Z- H4 f' @% Z* ^* p8 E8 j. u
- (setq horiGrw (getdist "
& o4 O" Q- P7 f1 [1 P - 每一圈的水平增长距离: "))
) P% }) k* K# g - (initget 3) ; cf 必须非零、非空
! Q7 \& J: G( i0 r6 Z - (setq vertGrw (getdist "
. H. @) K; n6 ` [ - 每一圈的垂直增长距离: "))$ \; [1 \% \( g2 {0 w# ?# i; p
- (initget 6) ; ptCntPerCircle 必须非零、不可忽略) h+ H; W3 o$ t+ o
- (setq ptCntPerCircle (getint "
5 ?' q0 I* C7 Z- X% r( G9 \ - 每一圈的插值点数<35>: "))
" N/ Y% j' \, k! h0 ?7 r - (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
. `: u, X) D* b' f2 J# U/ e& q - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
# D1 C: k: `$ A. d. S2 e - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
, P- h, ]9 w* z: d; M - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值( m& }9 M; J7 ^- @* `: |7 A6 q
- (setq *error* olderror) ; Restore old *error* handler- w; z# c( F# ^$ H
- (princ)
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6 O8 H% F& C4 G+ [- )
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
