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发表于 2008-7-2 23:08:45
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来自： 中国河南郑州
为照顾老版CAD用户，上传正天圆地方插件（网上找的LSP）一个，经过试验，抽壳做法不行，可以通过复制、差集。。。。。的办法。
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; Y7 L$ I5 u) f g(defun c:tydf (/ ppp a ab b r h x y z p01 p02 p03 p04 p1 p2 p3 p4 pt11 pt12 pt13
6 @, K" C. M" [3 u, E pt21 pt22 pt23 pt0 pt1 k e c ang ang1 ppp1 ppp2 ppp3 ppp4 ss)
+ r' o1 g6 g4 N7 j X (setvar "cmdecho" 0)% y0 x3 ^, `" S4 I( A/ ^/ h2 ?
(alert "本程序已将UCS设为世界坐标系！"); i( p1 o" |2 a5 H9 H" T) O
(command "ucs" "w")
5 d+ P, h/ q+ b$ y9 u4 R. v% S (setq ppp (getpoint "\n请输入地方的中心点"))7 I) G8 X- S4 |0 U
(setq a (getdist ppp "\n请输入地方的半长度:"))
: R$ o! n' k {7 V b( a1 r- s7 L (setq b (getdist ppp "\n请输入地方的半宽度:")) @9 i4 ?: k2 B5 c
(setq r (getdist ppp "\n请输入天圆的半径:"))
- x4 p' i; u. y3 Y# f" ^ (setq h (getdist ppp "\n请输入天圆地方的高度:"))
: z3 a" [( }5 f2 ]7 u" {) T$ @ (setq ss (ssadd));;;;;
) l x( j K" p2 J" j6 C (if (< a b)7 d! v: J# t) H8 h& `9 Q t
(progn
. i$ [7 j5 l, v! z (setq ab b)+ u5 s4 Y9 ?+ D( q/ O: [! o
(setq b a)' x" ~2 m$ v) l) ^% [, B; x! t
(setq a ab)
4 ^6 s4 P( _, P" u8 O" d0 f )
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(if (< b r) E9 Q4 D: ~9 E R
(progn. r" z1 d3 Z1 J9 t+ U6 l
(alert"您要画的是天圆地方，圆的直径不能大于“地方”的宽度和长度!")* p g7 c+ L2 K1 ?" q1 P, y
(exit))
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% [7 I* J2 q0 p (setq oldos (getvar "osmode"))
2 Y% U1 m/ c5 M l" t3 }9 k6 G (setvar "osmode" 0)
; V& `5 g* j: ?# K* c3 u (setq x (car ppp))
/ ?; u C' g) z1 F9 f' [" f2 E (setq y (cadr ppp))
( f( y- ^3 Q, g7 V5 @6 @ (setq z (caddr ppp))
G7 t" s/ B9 g, d (setq p01 (list (+ x a) (- y b) z) ;第四象限点
1 E8 Z5 R5 O8 |/ C p02 (list (+ x a) (+ y b) z) ;第一象限点
* g$ j" b( y" M5 S! g p03 (list (- x a) (+ y b) z) ;第二象限点
( v7 m' L& r* f4 n \: f1 C P04 (List (- x a) (- y b) z)) ;第三象限点
8 n9 ]5 ]1 M0 d; ~ (command "rectang" p01 p03)
5 _1 \1 q, G$ W5 T! L! {- S (setq aa (atan (/ (- b r) h))) ;angle = Atn((b - d) / (2 * h))
. ]2 h+ b. ?4 P; J (setq ang (R->D aa)) ;弧度转化为度7 y7 r' m3 v5 K$ E% |- b
(setq p12 (list (+ x a) y z))+ I7 p7 {! T% x& c: B) `6 n% y
(setq p23 (list x (+ y b) z))- y# S o7 e# L2 H: c8 k
(setq p34 (list (- x a) y z))
" |- i1 _# T& A (setq p41 (list x (- y b) z))0 O. H& ~% R* d6 A* J8 I; z4 H* O
(command "extrude" (list (entlast) p23) "" h ang);;;;;;
6 d! d5 o& `( S w0 ]" ~) [, p (ssadd (entlast) ss);;;;;- m6 [* a7 R$ \$ [; l
(setq p1 (list (+ x r) y (+ z h)) ;+X点
0 H$ a/ `+ I* G: J2 D p2 (list x (+ r y) (+ z h)) ;+Y点
4 }9 D, r/ d& E, F p3 (list (- x r) y (+ z h)) ;-X点
/ v8 y- n9 }' F+ K, e) F p4 (list x (- y r) (+ z h))) ;-Y点! h, b! O$ {+ ~- q3 @
(command "slice" (list (entlast) p23) "" p01 p02 p1 p03) ;;;;;
. `4 X: w: z0 R (command "slice" (list (entlast) p23) "" p03 p04 p3 p01)5 r5 J0 r3 }- C: L2 k
(command "slice" (list (entlast) p23) "" p01 p4 p1 p3). z0 p4 D1 |" ~) f R, s
(command "slice" (list (entlast) p23) "" p02 p1 p2 p4)
* J$ \$ T/ D4 w5 v' k (command "slice" (list (entlast) p23) "" p03 p2 p3 p1)9 e8 v( u4 O8 Z! l( l
(command "slice" (list (entlast) p23) "" p04 p3 p4 p2)' W) T+ }# c( `1 k0 Z
(setq pt11 (+ x (* r (cos (atan (/ b a)))))
+ p! K: Q2 D# G. M) d pt12 (- y (* r (sin (atan (/ b a)))))
4 u# [" z2 T: p$ F+ H# a: z3 Q6 X pt13 (+ z h))* T/ j% J; F! P" S( {
(setq pt1 (list pt11 pt12 pt13)) ;射线交点1
* g2 ~; t. B: }+ ` (setq pt21 (- x (* r (cos (atan (/ b a)))))) S! @" Q: Y4 m0 ]4 u0 r6 Z/ m
pt22 (+ y (* r (sin (atan (/ b a)))))& w! {5 {* G: U9 ~
pt23 (+ z h))
. ?5 \2 }7 p+ q (setq pt2 (list pt21 pt22 pt23)) ;射线交点2& f# O) }2 S5 N& h4 s- R
(setq d01 (distance p01 pt1)
: h( ~5 a! D) q8 a$ P3 A D d02 (distance p01 pt2) s/ A" u" q8 F
d12 (distance pt1 pt2))
) `' r$ H% C9 K+ l* p! V3 j (setq c (/ d01 d02))
, |# ^" b- w! d, r' x (setq pt01 (/ (+ pt11 (* c pt21))(+ 1 c)))
* z$ u. ~' B9 o (setq pt02 (/ (+ pt12 (* c pt22))(+ 1 c)))
1 |. N* Q4 H# C0 P8 t( J (setq pt03 (+ z h))
) }) S: h5 k3 w6 m# J$ L2 A (setq pt0 (list pt01 pt02 pt03)) ;椭圆锥圆心8 b* f$ Z, b3 j) o9 b/ E+ n2 |3 v, R
(setq k (angle pt0 pt1))7 \) c. }; }2 o. h8 n% X
(setq aa (sqrt (* (distance pt0 pt1) (distance pt0 pt2))))
7 t* p: ~- r' v (setq e (/ (- (+ (* d01 d01) (* d02 d02)) (* d12 d12))' j0 X3 X) a4 d1 J. B5 {
(* 2 d01 d02)))
* e7 a5 c; Z' U v4 V (setq ang1 (+ (atan (/ (- 0 e) (sqrt (- 1 (* e e))))) (* 2 (atan 1))))
6 x0 K/ R# U1 J* g6 n) i1 W (setq bb (/ (* (sin (/ ang1 2)) (distance p01 pt0)) (cos (/ ang1 2))))" a2 b, ^! I! x- V# ~
(command "ucs" "za" pt0 p01)
: c, ?1 x& ^* m7 I2 s2 c' A+ ~ (setq pp1 (list aa 0 0))1 } f- a& L( p: J: u8 G0 a2 Y
(setq pp2 (list (- 0 aa) 0 0)). i/ Y2 K4 g% j
(setq pp3 (list 0 0 (distance pt0 p01)))
& H. \5 `, V2 S o (command "cone" "e" "c" "" pp1 bb "a" pp3)7 B: X% q; E) ]! K+ i& n' I3 Q3 l
(command "ucs" "p")
: T4 A0 z0 g$ ?# X7 R7 L$ H (command "slice" "l" "" p1 p2 p3 p01)
$ s5 x4 Y% S, E6 d' [& H% b (setq ppp1 (list (+ x (/ r (sqrt 2)))(- y (/ r (sqrt 2)))(+ z h)))
- ^+ U7 N7 v R" p7 c5 q (setq ppp2 (list (+ x (/ r (sqrt 2)))(+ x (/ r (sqrt 2)))(+ z h)))5 i% H) u$ L$ C+ F4 U
(setq ppp3 (list (- x (/ r (sqrt 2)))(+ x (/ r (sqrt 2)))(+ z h)))
' y( \ m( G$ @ (setq ppp4 (list (- x (/ r (sqrt 2)))(- y (/ r (sqrt 2)))(+ z h)))2 ?8 f4 v2 P4 h" Q5 T
(command "slice" "l" "" p1 p4 p01 (list (+ x a) (- y b) (+ z h)))
& N! ^# T& C$ f) w3 L, Y7 _' b (ssadd (entlast) ss);;;;;;: r5 L5 n* s3 C1 z* L Z% N
(command "mirror" "l" "" p23 p41 "n")# h& ?5 n. A( r: P9 B% Q5 f9 N( Q
(ssadd (entlast) ss);;;;;;
( ?8 W0 T; K& A% ^ (command "mirror" "l" "" p12 p34 "n")
S% s' H2 _9 ~ (ssadd (entlast) ss);;;;;;
/ O4 d6 H6 s5 x4 D9 G1 r" P8 [ (command "mirror" "l" "" p23 p41 "n"); U# u9 M# M; m/ f& p5 P o8 e
(ssadd (entlast) ss);;;;;
2 _. T( E1 |0 q8 J (command "union" ss "")
! x- b. g+ q0 p/ {0 k+ \ (setvar "osmode" oldos)9 s' Q0 m1 \# L
(princ)
: u, X4 D2 h2 I- u9 G% [+ L)
4 Q+ b: w5 H# _ C" m(defun R->D (number)
- S0 G8 S7 t: I% t& B4 E (* 180 (/ number pi))
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[ 本帖最后由 woaishuijia 于 2008-7-3 17:24 编辑 ] |
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楼主
发表于 2008-7-2 17:13:25