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4 K- {8 r+ G1 G! o: q! d+ y
. {: }; o$ \$ X: ?. @1 Z8 B
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：
- L( w+ {( z; ]* B: d9 {' u* e' j一、齿轮轮齿渐开渐开线' A. t: q( M) a; g% X0 B
+ [1 S `& D$ i/ x4 a- (defun c:gear(/)" @8 h% V) _: e" K& e
- (+ v) @% f6 P2 h4 c" g& r
- setq' y: f& a$ k' p8 D
- p0 (getpoint"输入齿轮中心p0: ")" z' h" r6 p# L/ S7 _2 H& f! n2 v
- m (getreal"输入齿轮模数M: ")/ P m: n+ [$ T4 \
- z (getint"输入齿轮齿数Z: "): b; P" H9 M( M+ |6 u' |% G5 Y6 h
- ha 1
3 S8 c/ {0 D6 z# ]) m/ p - c 0.25
% |4 E2 v2 V! O! w' i - a (/ pi 9)% v: H/ ]& { ~6 J, I! x5 w; D
- ra(/ (* (+ z (+ ha ha)) m) 2)
. D6 x8 u5 x7 Z& \7 x - rf(/ (* (- z (+ (+ ha ha) c)) m) 2)
. m) k6 ~& r4 P- z3 U& c& V - r(/ ( * m z) 2)- Q' `- ^) p' {% q3 a
- rb ( * r (cos a))$ h+ E% X2 u$ @- H% l7 b
- ri rb
& `' m- G8 Z! I - ang 0! C8 k+ X; O3 l+ K9 G. t$ U# m4 ?
- g (polar p0 ang rb)" P; E: }! d& u* t+ i
- )
2 ^$ U& B7 O' I: x; a F - (command "circle" p0 ra)
L$ ~3 I& v' Y - (command "circle" p0 rf)) l4 f \# t+ O* B
- (command "circle" p0 r)! t+ l Y4 S$ h0 F% `2 y
- (command "line" g)1 |) h2 B( x9 g" `3 A9 z
-
3 V1 y0 i3 w3 M# X6 l* q - (while (< ri ra)
( p9 A+ u$ G$ n( Q2 b - (setq7 q( y5 E2 B" V8 D F# {+ z
- ang ( + ang(/ pi 360))* ?& t( _- R1 ^ Q% E( e1 u" [
- ri ( / rb (cos ang)): }3 g& K/ ` N% k$ m1 ~
- cta ( - (/ (sin ang) (cos ang)) ang)
r* e. k# G, [6 L# K' q - g(polar p0 cta ri)% b7 B/ e6 J' ~
- )
! k0 K0 l2 ?. e' S ~ - + |1 z1 J) l- d) H/ U0 l
- (command g)
' H P3 s8 Q$ W O$ p/ _- \ - )
; Y7 E7 i* L2 x/ b' \/ g7 B - (command )
- }% x0 r2 z6 e% K; S7 s4 Q - )
' \- V. c& y- D! @) \+ G
4 a& @4 p+ Q4 Z; z& T9 @
, r" i9 I/ ^. N+ b' ]
4 g1 X9 u; I+ j& V" v二、螺旋源程序
8 C/ r+ |* Q$ o5 U' N1 n
# o' E6 C/ n" w- G) a/ v# j, J, c- l- (defun errMsg (s)
, N, k7 c* g, A+ h& t+ E$ Z5 e! T3 V0 p - (if (/= s "function cancelled") (princ (strcat "- `9 Y7 E; g; C! X/ J
- Error: " s)))
8 `2 q& K) ?& f; R6 S& O. L4 v - ; 当命令执行时出现错误* D7 m% U" r- D, t& m6 J' A9 Z
- (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C7 G2 O* o$ S; H9 C- {' ^1 J
- (setvar "osmode" osmold)" l" x$ c& _9 ~# m6 O
- (setq *error* olderr) ; 恢复旧的错误处理
# Z$ g& W1 x) x& K# x - (princ)
! U' A$ i/ U2 h! S9 }) P/ N9 \ { - )
, D- y0 X6 | l0 x. E" x" D5 q
1 z9 W4 r& \# d8 W( {2 E% Q% q- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle
* F+ y. s2 u. i' w4 t4 O. T - ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)/ Y* ~! o) x8 f9 V, {, [
- ;-------------------------------------------------------------------
. K% f+ \8 O4 y - ; 获取公制外径大小、螺距总长% g6 h5 \3 ~5 R6 b5 t7 V6 K0 ^8 E1 U
- ; 然后计算一系列几何点
; O" i" Z- X# ~ - ; 并且关闭对象捕捉、命令回显
9 p7 ^9 ?2 J) ^- ?* y D9 c0 X' ~2 B: @ - ;-------------------------------------------------------------------
" s6 o" Z. A3 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))
& p' j+ P% |. W9 ^: _- I i7 _ - (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))
! `) i4 n0 G/ r( _* j% O: M - (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))
* e! Y; ?" c5 @$ `9 `9 N. C4 T - (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))
, n, S& K4 z: S4 c - (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))
! S4 b5 A' F0 D
" k+ E1 E& p* {2 u- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值
3 R+ `- ]5 [& F - (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值* Y( I. g* d5 h# w' m. v0 m3 `* I
- (setvar "osmode" 0) ; 关闭对象捕捉 # ~, M2 i1 { U6 P- z0 b
- (setvar "cmdecho" 0) ; 关闭命令的回显
3 N5 q# r* k1 o6 ^ }" W' Q2 Y8 u - 4 f( o& `3 G, S4 ^& l1 f1 s
- (setq innerdiafactor 1.5) ; 设置内径系数
9 a' a& ]- r" |4 s - (initget 7) ; radmid 必须非零、非空、非负5 O/ M+ {7 i/ Q1 F$ N0 i
- (setq radmid (getdist "
& k. I' g- h& Q* I& M# l N - 公制外径: "))4 A( L! ~0 Z( F
- (initget 7) ; threadpitch 必须非零、非空、非负
7 L1 a. w" O% ?) x - (setq threadpitch (getreal "
& g. t; v8 j3 s5 v7 L# F - 螺距: "))
# L3 M+ |* h% Z& z6 G - (initget 1) ; ptStart 必须非空
9 V% H) g3 _- u3 @3 o. M5 G+ _1 v - (setq ptStart (getpoint "
/ T0 C8 W2 _5 n+ o9 w - 起始点: "))
% f! {8 ~& G: L - (initget 3) ; threadlength 必须非零、非空、非负
! l: `: i2 V9 k3 C5 ^6 S+ {, E5 k p - (setq threadlength (getdist "
0 t' l9 a& w: j# I1 z - 螺纹总长(Y方向): ")): s) F8 L& H! \* I7 q+ O4 x* J: N
- 5 e* Z+ C2 ^1 ]6 ^
- ; 对公制外径添加公差8 f4 x. F- o8 j+ @
- (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置9 p5 g7 X5 z$ ?# Z, y( |" S: m, H
- (if (<= radmid 6) (setq order 1)
( c- T# w* f7 o: A - (if (<= radmid 10) (setq order 2) ?' K0 O7 D+ |- U9 u4 l
- (if (<= radmid 18) (setq order 3)
" }6 e* N+ W7 e% \) z: F5 M+ j& ? - (if (<= radmid 30) (setq order 4)0 @! m6 Z& x5 M$ T$ M w, i' L: x
- (if (<= radmid 50) (setq order 5)8 x/ f( e" {) E. a/ {
- (if (<= radmid 80) (setq order 6)" v: F- o9 B/ F; q7 S+ m
- (if (<= radmid 120) (setq order 7)- R' M! N/ Z; F' }/ N, | d
- (if (<= radmid 180) (setq order 8)) n# e5 e" H* a& t0 p
- (if (<= radmid 250) (setq order 9), V8 B5 k% _1 P9 _4 K
- (if (<= radmid 315) (setq order 10)
' f2 k7 q! D* [ - (if (<= radmid 400) (setq order 11)
" E( `6 [6 x- ]5 a4 R( [) E6 e - (if (<= radmid 500) (setq order 12)
- x; g) l' r2 g2 T2 U% ~5 N* K) p) ]2 @ - ))))))))))))); u" e- e& m+ v% G5 ~! l2 n
7 ?$ l) I) }! S: A8 N$ j7 c- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带
$ p8 a% X: A3 T: y* M$ c - (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
$ M' ?$ Q6 q1 y7 c: K# N+ G - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))& Z; y$ f: x2 X$ _! l; A9 Q7 X' ~* R
- )))
" @! |! o7 F0 ^: w - 5 M. X( B2 x5 |+ e+ T5 x4 ~# e
- (setq h (* 0.866025 threadpitch)) ; 计算齿高
- w" p$ q7 k0 {5 C, w4 t& U - (setq radouter (+ radmid (/ h 4))) ; 计算外径
' f3 P5 C9 k, i+ N# J - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径* q* c, M4 f k8 K& N
- (setq threadangle (+ 30 0)) ; 计算齿顶角# T2 n; q# b8 e
2 P3 P8 }& a6 k- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数- |: j" v. V5 m( p5 K& e
6 L( n, l! D4 V: W- p9 p F- (princ "
: m m/ o7 w( N) \' E - 三维螺纹创建完成")2 V! ?/ g' K# u4 w
- (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值& _5 |' Q) b J, D+ l! ]0 p
- (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值
$ ~3 e: y+ w9 |" c# N. R - (princ)
# ^# {% }2 K" m# k7 @$ Y: e3 v - )! i! O" H* S8 [* u* P) d
- ~( t, m# q" r" t+ {1 Q' B' J- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
+ W+ a# U1 V+ ]" b - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone) }2 {0 Q7 ~& N: i
- ) E0 H" w! y5 a
- ;(command "undo" "begin") ; 开始undo步骤
+ b% q: v! ]% x( }) v A
t" T6 e2 m: @/ C# Z- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)$ |/ C- ~: e6 R
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
) o% Y* _2 z" z4 _' l, S" g: n7 R! j - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))
- z! ?. `7 o; @0 b8 h* T - pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)
" s1 p5 B' u; q" c1 k5 d6 {+ J+ B - pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))$ D) ^3 }/ I% H$ y& b
- ang (angle pttmp1 pttmp3)3 u! a5 s( Y6 v
- pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)
; P6 W& Y$ A& h! F; O# ~# [+ [$ I3 i - pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))
4 T- W9 ~1 U5 j' w* m% G - pt3a (polar pt1a ang radouter)
, C% [( m, _9 F5 X3 y8 m - pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)
" J3 R. X9 m; Q, G - pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))/ q" M6 ]' x; w. o' J
- pt3b (polar pt1b ang radouter)
) ~& j1 O- e' W" b% K - pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)1 B, ?/ v& \- ^5 ?4 Q5 r9 u0 Q
- pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)0 V* y2 K# V$ a" t! \
- pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))/ |2 R7 n! N/ m9 i2 o8 j. {
- pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)3 @$ V+ f9 j3 Y* T
- pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)1 R) o1 S4 M8 V2 x
- pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)" x6 l- r. S* N& ?+ j4 ?% H
- pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))4 c( d" `( S$ @3 W# A
- pttmp11 (polar ptStart (/ pi 2.0) threadpitch)- `" `% R# r, Z5 W5 v6 [
- pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))
" F: z. n# Z3 {& e$ p9 l& `& f - )4 P! \( `5 f: ~. z( U/ H
! Z: g; W8 }+ \! U- ;-------------------------------------------------------------------
" M7 n: |( j( _ - ; 绘制两个倒置的并偏移1/2螺距的圆锥3 G( m V' F8 m
- ; 这两个圆锥都以中剖面剖分' S4 x% L( v; [9 V0 { h! h0 L" `
- ; 进行并集运算+ D7 t1 l9 h; {+ g5 u
- ;-------------------------------------------------------------------& U0 i0 J2 ]( \( p- N" y( w
! b1 k/ Q4 A; y. P- (SETQ startcone "order")5 p5 X; l9 Z/ i |+ g3 H
- (SETQ endcone "Y")$ x1 k5 J# Y+ e& z+ G6 _
- (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)
+ K' a/ J: o! N - & p; C) D- V% R& ^- `, y- \
- (princ "
% r# B- ~- ]1 O% |1 S7 F - 正在绘制三维螺纹，请等待")3 C5 h; Y9 f$ e3 T* s B
- (command "pline" pttmp1 pttmp5 pttmp6 "c")6 F9 A- f) G5 [, d, S" n: b0 [, J
- (command "revolve" "l" "" pttmp5 pttmp6 "")0 }7 q" H- H& O& Y' k) Y
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)# o! y# d9 u. z) D$ Y: F' D0 ^
- (command "slice" "l" "" pt1a pt3a pt1az pttmp3)
: Z" N$ t8 m& s0 h' I7 U - (setq tstmp (ssadd (entlast)))/ C5 d- i6 f+ Z, q/ a
- (command "pline" pttmp3 pttmp9 pttmp10 "c")* I6 E; M; i: q! O* E
- (command "revolve" "l" "" pttmp9 pttmp10 "")
! G% [6 `( O7 c2 L - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)4 L3 o1 b% T4 F2 U- K( P( L
- (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)+ j) c( g( c, r9 t0 I+ c9 j
- (setq tstmp (ssadd (entlast) tstmp))
# c; `% _/ U/ G L - (command "union" tstmp "")
, |9 ]1 O T5 m: ]8 y) Y( ~2 X/ M- S - ! t' Q4 G+ U! ~# I. `! U' v1 a
- ;-------------------------------------------------------------------
, i: v6 O/ ~; N$ e2 J: c9 A - ; 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9 o6 ~, E" \# [
- ; 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8 j; Q. J. T5 l* f+ M/ }8 A
- ; 在最后一步被切除
4 _' I3 A1 W7 P - ;-------------------------------------------------------------------
4 ?& u. t# m. H7 D
0 Q( k+ O8 G, c/ K- (command "slice" tstmp "" "xy" ptStart "b")3 M6 s1 K L3 W* u8 n6 j, D6 t
- (setq tstmp (ssadd (entlast) tstmp))
" k8 P5 C2 `+ P! J4 N - (command "mirror" "l" "" pttmp1 "@10<0" "y") [9 A: Z' z0 l0 k+ n
- (command "union" tstmp "")" _0 ^4 c- _9 Q# g2 h
- ( b3 W( N1 c1 L
- ;-------------------------------------------------------------------
1 V4 C2 N2 a! O1 {, U; @* f v - ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）' C, F& O6 H0 `/ z7 K/ R- n- ?
- ; 得到的实体再切除到指定的螺旋高度
( R: W8 ?* d5 O! w$ K# d$ _) d" f - ;-------------------------------------------------------------------. z/ z- O; C. u3 V) j
% ^* [5 M% q; `- (setq e (entlast))
# A8 s/ C, G+ ~. z3 Z' R" Y, U5 z1 k- H - (command "array" tstmp "" "r" ttal 1 threadpitch)
0 }0 T" \* {" J# d7 J& L, e* T - (repeat (1- ttal). C0 f- j; C1 x1 z/ _. M" K' u; ~
- (setq e (entnext e), G! [1 k, R8 Y8 b* e" `, `3 `0 E
- tstmp (ssadd e tstmp)# ~3 y/ H+ }% r# e- N
- )
9 L s$ w1 H$ Z, L! S) k; \5 J2 l2 j - ) G5 ~ W! I- @ j- g
- (command "union" tstmp "")6 S( Z8 `/ l0 }7 s
- ! R( g2 m0 j7 |/ U" j
- ; 若开始创建45度的圆锥
$ W* @% ` } n9 F& \" i& M - (if (/= startcone "order")
0 _" M9 f" H4 h/ z9 s - (progn (setq e (entlast))$ |9 \* n0 @% ~
- (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))
1 i8 c0 q4 D5 M8 q - (command "union" "l" e "")
/ V; [& ~9 e$ p - )# \1 m9 H# o0 O' x; s
- )
3 \4 M1 W- S7 z' h
0 z" p+ p3 ^) e$ k- a- (command "slice" "l" "" "zx" pttmp11 pttmp12)
, Y, N; M8 L) u1 h - (command "slice" "l" "" "zx" pttmp12 pttmp11)5 d: {- P& N7 Y) R5 X
- (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart))) 6 R; R! M" F! V1 Y1 W& R2 j
- 6 x/ D* F& h! F+ F, S
- ; 创建最小直径的圆柱体，然后与螺旋作交集
* c2 K, R9 b1 a1 O - (setq e (entlast))( q# L9 V1 k. l0 O
- (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))). X4 _( i# h- q# U5 a% A3 J3 `' N
- (command "union" "l" e "")
9 g/ r/ p8 d% `0 f4 O. L - (setq tstmp (entlast))
! Z) q! r: ~1 r7 o4 ]( p, N: \
( L S3 y9 w: v( y, p: t. { Y2 p- ; 创建中空的圆柱体 c% J' ^" l# A$ u0 W
- (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia/ a) ^% Z% ~1 E3 D
- (setq e (entlast))7 N' z1 g6 ^7 I- j/ B
( k% v( \' N5 [% z& O! N- t- ; 若最后创建45度的圆锥
3 a2 `. L3 E6 J# v/ x5 D) O - (if (/= endcone "order")
+ |5 w _6 H9 |* r/ c( ] - (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart)))
i! F( u/ m, R% l$ g4 Z7 i' } - (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart)))
2 q7 _' i$ S$ S. y+ n4 b% S3 g - (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))5 I; r% D$ t; d2 N& q# k/ B2 w
- (command "union" "l" e "") ( T9 o0 k6 g" N
- (setq e (entlast))
' T3 O& v' |# ^ - )
1 Y- ^( _' v! @: B/ b0 O - )4 d- ]' a: C! u8 H& ?+ R+ m5 }
- Q5 d( b/ m" [! g" w/ z5 b/ G
- ; 从大圆柱中减去小直径圆柱2 d, S: H/ ^2 }4 h$ z0 J
- (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
7 D8 X& b+ E# m2 J4 `2 ?9 I - (command "subtract" "l" "" e "")5 n3 t) I4 v! G5 i
- (setq e (entlast))
. M0 o: d) R* X1 j" E9 W - & l2 @& w/ C9 o/ z, w
- ; 从螺旋中减去圆柱% W* Z5 s" f2 `) Y
- (command "subtract" tstmp "" e "") a) `2 H4 f$ n! w8 ^7 I4 K
* B2 M5 a; Z0 @6 L- ; 如果螺旋长度为负然后镜像7 b h* `! U" I
- (setq e (entlast))' _+ o, W- R4 E% e5 a" ~
- (if (< threadlength 0) (mirror3d e "zx" ptStart "y")), D( F+ C$ \9 i- X2 p' T
7 b$ P0 S8 p( M& W1 j1 n( @, y- (command "zoom" "p")
2 f/ @1 ]$ U$ `6 G8 N3 H1 l) ] - ; (command "undo" "end") ; 结束undo步骤
3 a8 N7 R& E% M - )9 I6 }* a, u) p0 I
- : T+ G4 f8 J. s; G6 G; k
- ;;;---------------------------------------------------------------------------------------------------------------------;* ]8 _1 H/ b% X6 O- y" k3 M
- (arxload "geom3d" nil)" s6 z" [" P9 `1 M& u3 `
- (princ "& B/ R; Z% Z5 I# I& i, w
- 3DThread 已加载。 ")- M% }. X' V. E' b3 A
- (princ)
- j6 p! A7 N# S& h" h9 V
- P7 y1 [' |! H1 g; h; t: @$ h3 J
9 ~, N" Y0 H/ D' R
三、弹簧源程序1 s* Y! U4 u5 {6 ^
- (defun errMsg (s) ; 当命令执行时出现错误
& B; v6 E# V+ a2 f - ; 例如用户按下了CTRL + C
T1 F9 k$ p9 |. Y6 Y4 L! t - (if (/= s "Function cancelled")3 ?: H3 p0 L9 B! ?) D3 I0 w3 q4 J
- (princ (strcat "
/ r/ Z4 H$ \4 t% p - Error: " s))6 a3 L* X6 v! l' q# ~
- )
/ J1 w0 K- W/ {0 j' U - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值: G+ G& N6 o2 M, d1 y8 @+ M
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值& {# N! y) K2 P0 N% M
- (setq *error* olderror) ; 恢复旧的错误处理
) V, ^8 ]) E& }5 } - (princ)
$ n! O: ~4 c) f7 K3 c# s - )
l% H9 L# F H# n8 f
+ L1 Y# ^) z3 v$ Y9 Y, M- (defun spring (nRepeat cntPoint bhfac lr strad bvfac( y, b* v* G# Q& q' f0 h
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)
$ {7 `( n6 p: [) `4 P; o - # G# M5 U" y( m* @" Z8 K
- (setvar "blipmode" 0) ; 关闭 blipmode K2 K) C4 d; u- p: d4 R; M0 p
- (setvar "cmdecho" 0) ; 关闭 cmdecho
7 h& n0 T7 j4 \- y7 i- p) E# f - (setq Pi2 (* 3.14159265 2))
% x9 c( X8 i o9 W' a - (setq aGrw (/ Pi2 lr))3 L, Y% `5 O9 U* f, P) O
- (setq dhGrw (/ bhfac lr))
' u% U- i4 `& Y/ ?- M3 e8 J - (if bvfac (setq dvGrw (/ bvfac lr))), q, G9 k( Z# v- [* W, I0 H
- (setq angle 0.0)
c- Z3 }8 e# r( O - (if bvfac: r" b5 w$ a! M+ D( V& r2 D% Q* W
- (setq distnc strad dv 0.0)
5 `9 x0 w; D2 Y: B- Y; X7 X - (setq distnc 0.0)4 S# V5 M. h4 X# z
- )
; F1 A6 L5 k( a - (if bvfac
# N7 s& u" S' a% o% a: @! A - (command "3dpoly") ; 开始绘制弹簧3 T" L/ Z, h$ m( i7 ~
- (command "pline" cntPoint) ; 从基点开始绘制弹簧* f7 r/ M9 @" \2 n: m6 q8 N$ O/ E2 Y* \
- )
5 o% v7 k. d E# e3 ~ - (repeat nRepeat
% @+ E0 Q% h/ N7 _4 `' U - (repeat lr
1 t+ o2 Q# S1 F( D$ N- u; i$ J - (setq tp (polar cntPoint (setq angle (+ angle aGrw))* Y7 h+ B6 ^* }( Z# D
- (setq distnc (+ distnc dhGrw))* R# V: S. U- Z# I* x* v9 y% w! `
- )3 _( D1 k$ g0 l) m1 F
- )" \ Z" l) r9 d7 r" {; h4 g
- (if bvfac! r. t( P# Z% e0 i/ p8 U
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
" d. [; ]) j; `+ X - dv (+ dv dvGrw)9 f7 V4 s% Z4 |. o) d5 l, D
- )
6 l, d1 ]" J* t& t. t! D8 Y7 I% _ - )
; z6 t) F8 n: a K3 t% I& Y" r+ ` - (command tp) ; 继续输入下一点) j7 F6 G1 q/ o9 e- h1 d3 O" z
- )
r) ?9 [- b" P - )
$ X4 B/ S8 t* T8 ^( X$ G - (command "") ; 输入结束
6 \9 C2 j% U' D) [: Y - (princ)
0 ^+ J: f9 ?: ]/ ^) v - )
( ^' }. @5 z6 S2 C: y
7 c& H% X, [3 K* n% J- ;;;
0 N$ }* A; t$ \# v- z - ;;; 生成三维弹簧函数调用接口
$ q* x5 O: d2 p, @3 |$ D+ K1 _ D2 I - ;;;9 M9 U$ o1 c( ^- U9 U- Q( J) p
- 9 U5 Z' }1 J) H
- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle) 1 i5 _; M+ ^& H) b0 _% r
- (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复
" l: T% {1 A5 n2 W3 G/ w - (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复
; W$ Q4 i) V3 V! G1 k - (setvar "cmdecho" 0) ; 关闭 cmdecho
2 H& ~; a2 p1 _; }" w, ]# p5 \ - (initget 1) ; cntPt 必须非空
4 t5 p. ^/ d" h# E" m+ } - (setq cntPt (getpoint "% Q' M5 f2 N6 f, D2 W
- 请输入底部中心点: "))5 e. y) m: B" j2 P2 W0 k% ~
- (initget 7) ; RottCnt 必须非零、非空,不可忽略
/ x/ Y+ j4 h8 p& X8 r0 z8 S - (setq RottCnt (getint "
3 w. X. T+ \" ]3 g/ s5 h% @, D - 旋转的圈数: "))
. U% Z/ @0 E- f7 \* N; ^5 B" m9 n - (initget 7) ; bgnRdtn 必须非零、非空,不可忽略; a3 M* H% s/ N' `/ B
- (setq bgnRdtn (getdist cntPt "$ R5 V- s6 s8 `# p3 U7 b+ e
- 起始半径: "))
: q" D/ j- r, O; V" f' f - (initget 1) ; cf 必须非零、非空3 M' _5 ^" {2 B n" s0 _5 S! ]
- (setq horiGrw (getdist "# Y. a3 D/ t; ^7 k* m# D
- 每一圈的水平增长距离: "))! U1 j; U9 u& E. K1 n1 X
- (initget 3) ; cf 必须非零、非空/ o4 l" j, x. I k9 p
- (setq vertGrw (getdist "3 U! d3 a4 z! Y/ k$ l$ ^
- 每一圈的垂直增长距离: "))
0 Y, u+ ]! R2 h8 D) c& D - (initget 6) ; ptCntPerCircle 必须非零、不可忽略
$ b! @) |- p! N& i# j - (setq ptCntPerCircle (getint "
0 U) f* j7 | D6 Z) D0 W - 每一圈的插值点数<35>: "))
) ]9 n1 V, d8 N1 a- j - (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35))) ' X) v; ~8 v7 o6 E
- (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)2 L1 H% }% @; N& @, V
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
4 i& i3 i1 W. H6 c7 o# e7 v" s - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
, S- _0 Z7 R+ P; m5 ~ - (setq *error* olderror) ; Restore old *error* handler6 E, m6 u7 J) ^% z: D* ~9 k
- (princ)
6 u+ O6 g# ~' F- k% B6 L+ f - 0 V) E% m* {1 B `
- ) ) V! m8 V2 k, p
|
发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
