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
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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:
9 w4 [6 V3 N' O5 n: ?1 |一、齿轮轮齿渐开渐开线
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& ?5 {0 W5 n( S; x% `( Q- (defun c:gear(/)
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- setq
& }" x5 s, l: [- b - p0 (getpoint"输入齿轮中心p0: ")
- J) N6 E4 E2 Q" F. m* j7 a3 }- J4 b - m (getreal"输入齿轮模数M: ")
6 V3 X" n3 w3 {0 B% u8 C - z (getint"输入齿轮齿数Z: ")
j4 h3 v& c& Z3 t - ha 1+ H$ _9 S+ p8 v N. L) R* n7 x+ y& ]
- c 0.25
3 S# i6 n1 @# {- [ - a (/ pi 9)- X7 R+ t2 C+ z& \4 _) u& \
- ra(/ (* (+ z (+ ha ha)) m) 2)7 T0 X7 D" ]1 }
- rf(/ (* (- z (+ (+ ha ha) c)) m) 2)
0 `2 G g, O& |+ j( z j - r(/ ( * m z) 2)7 o9 z+ N/ J7 ?& r$ z
- rb ( * r (cos a))
- S3 F4 B9 h7 D% s9 x7 T$ H" l - ri rb% s& K% P# C& v/ _/ O* P# ]) @
- ang 0& I7 j$ y' O% j
- g (polar p0 ang rb); {' ?/ k, J9 F3 X5 b) r
- )
* x" @* R+ a$ X% {4 g( E - (command "circle" p0 ra)1 r3 c/ X/ D/ R& j
- (command "circle" p0 rf)
; T% t4 d- Z6 m) D - (command "circle" p0 r)
. Y" T# [' l" m: c - (command "line" g)
+ G! L2 X! W# |! G0 i% B -
& j' x) s; f# h+ X2 |6 ]# A3 Y - (while (< ri ra)
% S1 @* M% S( a1 l3 O' g* m; F# I" l - (setq
& ~" V. a2 K3 I/ h% J6 m - ang ( + ang(/ pi 360))
9 ~: t( C+ f l- R m - ri ( / rb (cos ang))0 X9 ?1 n' i9 I# a: y( ]
- cta ( - (/ (sin ang) (cos ang)) ang)
# \6 h# ^% g; H, | W - g(polar p0 cta ri)
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- (command g)
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$ f+ S9 X( i) H& D1 c - (command )
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复制代码
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二、螺旋源程序. W5 u2 m! ?; T2 U% W3 [# s
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- (defun errMsg (s)2 m; ^+ }0 H5 @/ V7 Q5 |8 |( U
- (if (/= s "function cancelled") (princ (strcat "( R& @: p! D3 M6 v0 ]' }
- Error: " s)))
B- X. p2 w" g% v3 e - ; 当命令执行时出现错误
) I/ a. E: g3 D2 ]* n( ~5 k# L - (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
6 E( l: U6 j. I1 i, D - (setvar "osmode" osmold)+ S2 X- S$ |1 w4 e
- (setq *error* olderr) ; 恢复旧的错误处理
8 D7 o$ w" _2 W$ o+ F+ e) q - (princ) D% A6 E9 t( v6 U4 i e
- )) J* q9 t0 j: G& V4 w3 Y- f
- $ P; J. m0 d# Y4 I
- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle
' y* F1 T% |5 Z$ t: @' X+ _# S - ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)0 a% z# Z. E( k7 G) |6 Q: V& b# c
- ;-------------------------------------------------------------------* b. Y1 p$ u* T/ b8 a2 P5 o
- ; 获取公制外径大小、螺距总长1 q# C4 h/ n- I8 h# x" {
- ; 然后计算一系列几何点! n) I( ?: b+ v ?
- ; 并且关闭对象捕捉、命令回显
+ S: v5 D7 X D! P8 g7 C - ;-------------------------------------------------------------------
N( u/ a" t/ _3 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))
, `: { E/ [' @( \2 Z. b4 @ - (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)) 9 ]/ u, P* B/ |0 | E7 }+ T0 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))
( c6 q9 j% O1 N# I$ \. 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)) : U1 u# I7 W* u' |4 n4 Q0 ?" t
- (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)) 6 I$ T3 H/ i7 R4 D6 ^& R
- - p, l9 f; M: M1 ?3 t
- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值( A" y9 Q- U0 t5 e' y/ c& L* H
- (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值
2 l1 R1 p7 t! F: a5 C - (setvar "osmode" 0) ; 关闭对象捕捉
( z0 P( w" y2 \5 L4 w) O) @2 F - (setvar "cmdecho" 0) ; 关闭命令的回显! O. z5 [8 L* W0 ^
- ; |+ B- H# I2 k6 g
- (setq innerdiafactor 1.5) ; 设置内径系数3 R& ?; ]/ g- g0 L+ F$ _3 m% E
- (initget 7) ; radmid 必须非零、非空、非负, B$ g: V, r. w8 r1 I) ?
- (setq radmid (getdist "# P9 e0 s0 d+ J) ^) P8 j4 }8 [! b
- 公制外径: "))
7 M) U' ]2 d7 w+ J$ g; D, b" x - (initget 7) ; threadpitch 必须非零、非空、非负
* f) F+ w# h* k4 X! t: q, a" _/ V* A - (setq threadpitch (getreal "
2 y3 e0 K2 L. L$ {8 x6 j+ U - 螺距: "))) F; \* D( u5 H; P# i
- (initget 1) ; ptStart 必须非空
( s0 q, h& W9 }1 w7 d - (setq ptStart (getpoint "
/ F: y* c# [$ q - 起始点: ")). Q- M" I% B5 ~$ R
- (initget 3) ; threadlength 必须非零、非空、非负# X3 W5 X7 t0 l6 P2 S/ `
- (setq threadlength (getdist "
2 M' G' I, x1 U* T# n2 G1 W - 螺纹总长(Y方向): "))
/ t# I, n6 e' N4 k' g: _: s. Q
' ?, R7 f0 B, }5 W3 h4 ^2 {" ]- ; 对公制外径添加公差5 s1 _5 N$ H# s9 n. ~& V; y: v
- (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置5 w0 d J* O! q |8 U
- (if (<= radmid 6) (setq order 1)
) t$ F3 d+ {- C' s2 P - (if (<= radmid 10) (setq order 2)$ a1 p# b6 U, S+ S: w1 c1 b
- (if (<= radmid 18) (setq order 3)
6 T# j: B; h9 T - (if (<= radmid 30) (setq order 4)7 {* b9 O* O8 V6 }$ d
- (if (<= radmid 50) (setq order 5)" K/ o6 Z; `' p# V ]* A+ e: L
- (if (<= radmid 80) (setq order 6)
5 G0 z" f: L I: K% x' J) H3 v - (if (<= radmid 120) (setq order 7)' ~0 p+ Q+ T/ w! K
- (if (<= radmid 180) (setq order 8)' [% u3 A1 Q' T7 T* V% [6 B' x3 p
- (if (<= radmid 250) (setq order 9)
2 v5 h# \" v D - (if (<= radmid 315) (setq order 10)4 t# n7 d: V- N$ m6 x. y
- (if (<= radmid 400) (setq order 11)
0 X- e% X7 }6 `7 P" v' @# F - (if (<= radmid 500) (setq order 12)
% Y7 O2 j' |% d7 K4 O7 V" e5 Z - )))))))))))))
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- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带
$ \* L" |$ I. u8 Z2 K - (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
( a% `. x" J; u/ q/ \' p+ [6 } - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))
$ `5 r+ ]5 w$ a1 Q5 E$ l/ P/ l+ { - )))
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6 |& a- {0 q( ~. D) o# K0 ]6 g - (setq h (* 0.866025 threadpitch)) ; 计算齿高. P) \+ r( ]/ ~5 J
- (setq radouter (+ radmid (/ h 4))) ; 计算外径
4 ]- c; O. H3 q* e6 J. ]: a - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径# o5 h v+ W) j7 i7 M9 q
- (setq threadangle (+ 30 0)) ; 计算齿顶角+ A3 G5 n q- w+ a" x6 h1 S" Q" r
3 s) ]! C9 v$ Q" D- G7 i- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数4 ]9 A/ H& _3 v- @: J$ [; I
- 2 `. h) _ r8 y" T
- (princ ", ]3 U3 @2 k. u; S! c
- 三维螺纹创建完成")7 u* |- L' F* z5 Z7 v4 g8 n) u
- (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值
: X2 ^/ u |& r; B! j' [# N% H" O - (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值, K) |) n8 m/ g! n, _
- (princ)
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- 1 C& w/ v% j `6 T2 B2 {
- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
' F3 p5 l3 r/ a5 V* C1 S& R0 q2 `& Q - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)
' S6 k/ \" ~- @/ b5 {$ A8 p
( H! u" b/ c$ k/ ?2 S- ;(command "undo" "begin") ; 开始undo步骤8 F) x7 l8 p. f! ~& D
1 [: I; w" {& n$ R$ ]6 R+ G$ x) M- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)3 s' Q$ A& l- B2 P5 ^7 _' w
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))0 |0 ^, {! o k: U" c4 |# ^' F
- pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))4 \1 u9 q+ k. T0 X2 p
- pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)* l& g( p& G) B9 j
- pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))
# I+ Z2 `( P. _, ]# @$ @8 I - ang (angle pttmp1 pttmp3)
6 B1 p& L# e8 C% W2 g' S1 d1 h$ z4 x - pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)
& Z' H3 T& K" H# ]8 f - pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0)): _& e' V1 {- e. T# W8 p! N* }
- pt3a (polar pt1a ang radouter)
2 x3 }* o% C( H U - pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)
/ Q5 \1 k- j/ j2 H$ i" b- q5 H - pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))
) W: N0 ^8 A* D! h7 [ - pt3b (polar pt1b ang radouter)
- ^ Z) P7 h$ c7 w7 X - pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)
8 i: x, e0 \) `/ Y9 t2 ^9 b - pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)
$ l5 d8 y# b6 M+ O - pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))7 q: X) [+ E6 \! X; q+ Z+ d3 Q
- pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)$ B& d# n- x+ @9 Q7 ^ F
- pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)
: o! G# M# b. g - pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)2 v1 ^+ U" u/ }& G0 P
- pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))
# g: q4 T( D3 V! [, y - pttmp11 (polar ptStart (/ pi 2.0) threadpitch)
0 O! H3 j4 w* ] - pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))4 M3 C" a7 z4 ^6 a" N% J' p
- )* @( {8 H( H' S8 [' t9 L/ _1 I
4 V: t. I( ]! U. |; W2 w1 l- ;-------------------------------------------------------------------9 L! m2 n& z$ S9 G, S
- ; 绘制两个倒置的并偏移1/2螺距的圆锥
9 K4 y+ M; Z( s: N7 p' w - ; 这两个圆锥都以中剖面剖分
# i2 U+ W5 @! c4 |8 M - ; 进行并集运算% {) s A- I8 |$ Z( I
- ;-------------------------------------------------------------------' N8 L# a& Z& m6 @& R
- $ v9 v+ ~0 e1 Z7 O4 k0 n$ t
- (SETQ startcone "order")7 {% h5 w' Q$ D' R( q5 r7 r0 @
- (SETQ endcone "Y")
/ S* {% U' m' b7 ?8 j3 s - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)
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- (princ ", j) ]6 A4 s, y q R
- 正在绘制三维螺纹,请等待")
- U, ?0 o' I" _! t5 v( |* w9 W - (command "pline" pttmp1 pttmp5 pttmp6 "c")% t' P( V7 Y9 ~1 v& o# r. S% J
- (command "revolve" "l" "" pttmp5 pttmp6 "")6 s: K5 f6 ~: U
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
) W5 U9 R# z: n, G9 t& Z, M5 A - (command "slice" "l" "" pt1a pt3a pt1az pttmp3)
+ L% s! ~- X5 {7 F! x - (setq tstmp (ssadd (entlast)))
; _3 w. J4 D9 G% a, c - (command "pline" pttmp3 pttmp9 pttmp10 "c")
1 A/ ]# c5 s! x! g) P9 U - (command "revolve" "l" "" pttmp9 pttmp10 "")
% `) |2 f* W8 i9 h m - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)" U. k' F) ^6 e3 H% _7 d
- (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)2 t$ j) C4 K" @* L2 }; G/ L; g
- (setq tstmp (ssadd (entlast) tstmp))* L% A- |. Y/ Q* u4 n
- (command "union" tstmp "")2 u/ v! `- W% e0 V* [
- / w4 O; R" q/ G( Y* {6 f7 [
- ;-------------------------------------------------------------------
H1 J) Y" @- {; p: A( b \1 \ - ; 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 l8 B9 a% X& q- d- r" H0 P; j - ; 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
Q( V$ w( z/ b) I. k - ; 在最后一步被切除
7 l0 y: G6 T9 o6 S% q7 r' M - ;-------------------------------------------------------------------
( l' d+ A* H! e" ]) I6 K r, @4 E
, r( `$ D/ \1 h& V" i- (command "slice" tstmp "" "xy" ptStart "b")7 j4 }8 c+ {0 y
- (setq tstmp (ssadd (entlast) tstmp))
9 u0 J1 W& q1 d - (command "mirror" "l" "" pttmp1 "@10<0" "y")3 D! G2 ?6 z o B( N- h( H
- (command "union" tstmp "")
0 t+ I4 |! E( Q" |" L0 ? - 0 x Y( l: z* P# P! k3 f
- ;-------------------------------------------------------------------
9 W8 `0 [ \( p( N% k - ; 螺旋进行阵列操作,然后再作并集(可能会耗费一定时间)
, T# B) K; m2 F. }' A/ k& I/ f - ; 得到的实体再切除到指定的螺旋高度
: @5 b' o- S+ p4 {9 w* ? - ;-------------------------------------------------------------------& b9 w$ k; }- D* x9 E* p
2 {7 p. h, b9 l) z6 y: e- (setq e (entlast))
6 E3 v& I& _% Q' F9 G5 `. \2 v - (command "array" tstmp "" "r" ttal 1 threadpitch)
+ w% c7 I! N! G: \4 y - (repeat (1- ttal)
* ?5 `0 g8 g8 T8 L- ]6 D( j* ^0 ~ - (setq e (entnext e)
% G; w9 n- k0 J$ q3 t, L# A+ r - tstmp (ssadd e tstmp)" } Q [" V K# T/ e! g4 t7 |
- ). E4 p+ {1 X% B# x D( |8 D, D
- )
* K% Z! ^ ]: _$ T! y8 V& v - (command "union" tstmp "")
: u5 X! b5 m8 M5 v* h1 f
5 l5 F, n0 A" G5 R- ; 若开始创建45度的圆锥) Y) ?& }$ N/ @! x
- (if (/= startcone "order")
8 A: Q: U7 F0 K( a, ~ P n - (progn (setq e (entlast)). f6 A: a. t5 k( }. s# w
- (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))0 k8 t8 v$ P. F
- (command "union" "l" e "")% O- U+ {& ^% o. T8 ]
- )
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' Y2 J9 N& g/ s2 m1 S- (command "slice" "l" "" "zx" pttmp11 pttmp12)
0 v/ x0 E; f6 o: h0 `" u8 h - (command "slice" "l" "" "zx" pttmp12 pttmp11)
$ O4 p0 v& K& g - (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart)))
% Q- |: D; h# `; j% T* c+ ?! c X4 M - " ^% h/ ?# w q. [$ p5 y. X
- ; 创建最小直径的圆柱体,然后与螺旋作交集
( E0 r- p3 \- O) V9 [* x' v4 T - (setq e (entlast))
) O9 U5 a; t. ^ - (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))9 e6 @) z4 }9 t- k5 X4 a
- (command "union" "l" e "")8 {6 X k% O8 n/ O5 x% ?- e
- (setq tstmp (entlast))
2 Q6 n$ m2 R/ B1 i! c
9 w( b, o% N5 F! ]+ ^, Z- ; 创建中空的圆柱体. c' z2 D+ G! ?7 x5 ]0 e7 k
- (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia/ I Q2 O8 r9 i' c/ ?0 X1 k
- (setq e (entlast))
2 M# h- g" A+ V+ f) d J9 @, Z
! W" M3 @: V$ E" c- ; 若最后创建45度的圆锥
0 i& \9 \5 M5 r& [4 W - (if (/= endcone "order")5 B! z: K' S/ D/ E% i
- (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) 7 U$ |) S6 S# I8 g# G
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart)))
' g2 m- J# w% y6 _* V/ S1 u - (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))6 c6 p. f( o; S5 f! I+ \: U# T
- (command "union" "l" e "") ! L# T- N1 w6 |% n2 Y
- (setq e (entlast))' t5 G2 z) G# R$ w
- )
- n/ l5 ^) w1 Q - )
; p2 ?5 ` h& U/ J - 6 l- _ U' Z6 Q7 [
- ; 从大圆柱中减去小直径圆柱
) |7 i+ g; G2 w+ G" }: b - (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
( Q$ v6 z, s% e" j1 M ]8 k - (command "subtract" "l" "" e "")+ W; W- n" N# E9 L. P) Q* f' }
- (setq e (entlast)). d* E/ g' Y1 B
- 9 L+ ?9 N, {( e& W; L s
- ; 从螺旋中减去圆柱
+ R$ u/ M* u. G4 L3 C+ V) J - (command "subtract" tstmp "" e "")
6 _; C6 {3 N9 W# H - 2 g" J( f* {/ o0 I) F) I, S
- ; 如果螺旋长度为负然后镜像1 M- Z% @/ c& x# V* n, d4 }
- (setq e (entlast))9 r3 {- G, L+ S* `, g
- (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))
5 p6 S! J* L4 p# g( Y) ]
$ D& b8 l3 ~/ z- (command "zoom" "p")
5 Z* f% {9 V( H g0 X: V; T - ; (command "undo" "end") ; 结束undo步骤$ L$ z! E, A6 T+ G
- )$ g7 [ V& N9 c7 E$ H
- ! O4 Q: m9 o% y) R% w
- ;;;---------------------------------------------------------------------------------------------------------------------;) {9 z( M0 A7 q
- (arxload "geom3d" nil)
8 w, `5 ^- ]5 O' k! P - (princ "1 P0 A6 A7 O+ i6 B! [' l
- 3DThread 已加载。 "), N9 o$ x E i9 G2 }' z5 h6 G3 {
- (princ)2 O1 a; X$ r5 P
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% m3 f( J9 n9 X% `6 b1 H: E; _& }# U( t5 `
* n& I- F$ D! s3 x三、弹簧源程序
8 {5 X+ |8 ?' o4 ~+ i/ F, i- (defun errMsg (s) ; 当命令执行时出现错误
- T% u- _9 [) I/ t; u9 P. a) c9 a - ; 例如用户按下了CTRL + C4 `8 ]1 v9 s, m! S! l
- (if (/= s "Function cancelled"). r) n: b5 x! c4 L+ K
- (princ (strcat ") O2 s$ n) N; h, V% j8 y! m5 S( B
- Error: " s))$ H; x4 X% p0 y( i; C5 S8 t
- )9 g5 [+ ^6 j. H, ~
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值 {+ G+ B+ o, p, \* v
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
6 r9 x$ d4 j: q; Q4 _6 j1 S - (setq *error* olderror) ; 恢复旧的错误处理; r7 I- q) \! T! p% M) B
- (princ)1 z( o& [" R) S8 A Z
- )
+ z7 k6 Y5 t, S/ I3 ^( W: x2 A - 3 C* `/ x2 a0 z d9 ]3 B9 v4 g
- (defun spring (nRepeat cntPoint bhfac lr strad bvfac
$ r8 P" v' A( R - / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)
' c+ `+ \$ J! C+ B9 `
! X( V: G% d% |- s/ l7 a' W- (setvar "blipmode" 0) ; 关闭 blipmode 8 D, Z8 Z' j4 D% k \
- (setvar "cmdecho" 0) ; 关闭 cmdecho
! _" g! {# j, L5 c - (setq Pi2 (* 3.14159265 2))
8 {* J% a) z3 Y9 C* I+ _' f - (setq aGrw (/ Pi2 lr))( s* i; A4 {' t) S( Q
- (setq dhGrw (/ bhfac lr))
: R: b4 m. }8 ^6 \ - (if bvfac (setq dvGrw (/ bvfac lr)))
2 Q& ] S! v0 O - (setq angle 0.0)
0 C! Y- E1 E1 f h: z! D& ~ - (if bvfac
0 K9 M4 R3 v d- t - (setq distnc strad dv 0.0)
( i- [! B2 \( `! q# X - (setq distnc 0.0)
0 @# d& |& j$ k7 g2 ^ - )$ J0 u! C$ [# U8 w
- (if bvfac
. c" J2 U) J- ? - (command "3dpoly") ; 开始绘制弹簧- N7 F2 Z' M+ G5 g) G
- (command "pline" cntPoint) ; 从基点开始绘制弹簧. M) |5 d+ c" q; D) s2 R9 u$ r! L
- )+ l/ e }1 K) i2 b" |# y
- (repeat nRepeat ( y. j+ @7 T4 u2 ~* x3 M
- (repeat lr
) y$ S. \8 f3 A: A/ f - (setq tp (polar cntPoint (setq angle (+ angle aGrw))9 p1 J( y4 C$ L' z; |* ?
- (setq distnc (+ distnc dhGrw))
" n2 ^$ K% S2 n% H/ l g - )/ B" m9 B' d. c2 u: S: m; w
- )
5 c+ j9 J1 }' @7 z# T2 v+ o3 Z - (if bvfac
" u8 h* S, |5 G! w9 j# ?. \" N* D - (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
2 K6 c; s" S4 j - dv (+ dv dvGrw). b: v# o2 g y
- )
; ~7 ? j1 z$ f8 r - )4 u8 Q4 z- U9 G3 M( X" l7 j
- (command tp) ; 继续输入下一点! a1 T6 Y. x5 |$ t4 a+ Z
- )) g0 e& e9 w( S: e7 {
- )
: w% y$ U; C3 [3 l - (command "") ; 输入结束
" ~4 R4 |7 W! M5 B3 \2 Z$ k$ N/ ` - (princ)4 f0 G' K- }4 [& m4 Y
- )
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3 ?3 _& U; v. F* E D) O/ p- ;;;: J& C2 H+ T4 L7 j1 Z& V0 q
- ;;; 生成三维弹簧函数调用接口6 z& q! n% a7 X# n0 M0 G) H: V
- ;;;( m* G' s0 R; M1 [5 Q$ ~3 m% k
- @0 q5 z8 R; d9 w- O$ \6 }- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle)
% n9 Q/ ?# ]7 a3 R - (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值,以便调用结束后恢复
8 s# J1 x q3 g) t$ ?# h9 F - (setq blpmd (getvar "blipmode")) ; 获取blipmode值,以便调用结束后恢复; \8 _; @/ m; y8 R3 h# J
- (setvar "cmdecho" 0) ; 关闭 cmdecho
/ R- h# S: C7 Y: b: q9 U+ U( ?+ n - (initget 1) ; cntPt 必须非空0 P$ \* v' w: W, @8 B
- (setq cntPt (getpoint "
) ~9 F0 Y9 s0 \4 K& L: F+ [( ] - 请输入底部中心点: "))" z }9 C: {$ O' N) P; T$ _
- (initget 7) ; RottCnt 必须非零、非空,不可忽略' T- e8 f" y6 P$ H# q3 u
- (setq RottCnt (getint "
2 ~/ S- ]) T8 L% `: n: p7 G& y - 旋转的圈数: ")); y9 A0 q8 C; r( G+ r2 x
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略/ v4 v2 E8 {" d% l' I+ u; s
- (setq bgnRdtn (getdist cntPt "5 @. P8 l$ f" ?+ g' z* b
- 起始半径: "))1 f3 Y- f* K& T. H' _
- (initget 1) ; cf 必须非零、非空/ D2 } w0 a5 d# I$ Z. I" ]
- (setq horiGrw (getdist "
4 |4 w6 ]0 i. V2 ? - 每一圈的水平增长距离: "))
7 S0 b( D1 `/ D& ]) D - (initget 3) ; cf 必须非零、非空
' v8 e- `* r8 ]* [7 A! ?% A - (setq vertGrw (getdist "6 k* @ ?* z8 b" E) d
- 每一圈的垂直增长距离: "))' j( q! j& ^' g: ]
- (initget 6) ; ptCntPerCircle 必须非零、不可忽略. w W |5 b% ^( n! w1 W2 Y9 j. y
- (setq ptCntPerCircle (getint "" I4 C6 o' Z4 E3 ^ q* P1 ~" Q
- 每一圈的插值点数<35>: "))
; m6 P- j+ m6 S% {. b' `! n - (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
% O r% U; f- Z - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)8 C' Q- `' e7 G
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值6 i7 V9 l* T7 l: z
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
1 x7 \& `" g, ^$ z6 q, O6 s - (setq *error* olderror) ; Restore old *error* handler
* ? L/ F4 G+ S$ B2 J - (princ)
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9 y6 E7 |& @# Z- R. n. A e, V9 O& o* ~- ) 9 @7 ~# c5 u) ~
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