|
|
发表于 2008-7-2 23:08:45
|
显示全部楼层
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。. U# q. O) _% | [& `
* p# n, V4 E/ Y" }( e(defun c:tydf (/ ppp a ab b r h x y z p01 p02 p03 p04 p1 p2 p3 p4 pt11 pt12 pt13
" c. _8 p+ J+ s# G3 t; C pt21 pt22 pt23 pt0 pt1 k e c ang ang1 ppp1 ppp2 ppp3 ppp4 ss)9 ~& A. ?( M( ~2 I* P8 P$ H/ N
(setvar "cmdecho" 0)
- a# o) W9 k5 Q4 K( q$ x (alert "本程序已将UCS设为世界坐标系！")
9 D: N3 t: L+ k8 i" _ (command "ucs" "w")! J _8 L4 ?1 Q3 V, v, O
(setq ppp (getpoint "\n请输入地方的中心点"))( U* K' y9 [ H$ ^% l- A! r
(setq a (getdist ppp "\n请输入地方的半长度:"))
3 e8 U$ i1 E8 S2 j* m% x1 t (setq b (getdist ppp "\n请输入地方的半宽度:"))6 [' J; N4 {, o. a3 Y
(setq r (getdist ppp "\n请输入天圆的半径:"))
* w4 Z' \9 P# L5 Q0 Z- O- | (setq h (getdist ppp "\n请输入天圆地方的高度:"))
$ @: s- g5 o( O; q! A8 P (setq ss (ssadd));;;;;
5 x0 [8 V) m" F; Q: { (if (< a b)* h r' _# a8 x& [! l* C
(progn8 X2 ~* y& r& V' r/ j
(setq ab b)4 L% a0 Y- w. y9 a: X+ b
(setq b a)0 X' ~/ [. B+ o/ G. }2 w
(setq a ab)
8 O" {& [0 e# X; l! ?9 m. B$ r )' L3 F' ?* ?3 {+ v: b/ C
)
/ \2 \- e6 R1 P1 h5 f8 O (if (< b r)+ M* I' ^/ N/ W) U
(progn
3 U0 J K( h, o (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!")
9 I/ M' f: D( u (exit)) " A( f$ }* [* M! z/ q5 k
)
" p. n" i) H% J( [( ~! l) R (setq oldos (getvar "osmode"))
$ i% d" ?! r" _; t w; V (setvar "osmode" 0)
; }3 c |' |8 V m (setq x (car ppp))! F, w8 b* `% z: h
(setq y (cadr ppp))
7 a. ?8 I6 c9 Y) C- h (setq z (caddr ppp))0 {4 `9 _1 m: J. i$ `
(setq p01 (list (+ x a) (- y b) z) ;第四象限点
6 H; Z) @9 h( [. L p02 (list (+ x a) (+ y b) z) ;第一象限点
3 p$ w* R; u: \$ Z- U+ y4 p& V p03 (list (- x a) (+ y b) z) ;第二象限点/ H8 e5 e: g% B. T) {
P04 (List (- x a) (- y b) z)) ;第三象限点+ m) e$ h/ b. { q8 W$ u1 Y7 i
(command "rectang" p01 p03)7 C; P0 d6 b: V7 I0 i
(setq aa (atan (/ (- b r) h))) ;angle = Atn((b - d) / (2 * h))( L% K# b$ @! A/ n
(setq ang (R->D aa)) ;弧度转化为度
; F4 _3 u) ?/ }3 e7 p- _. N (setq p12 (list (+ x a) y z)). O! V' N1 D) A+ ?0 n
(setq p23 (list x (+ y b) z))
, o% p& g- A& s4 A6 S) B (setq p34 (list (- x a) y z))0 V4 L! w4 s5 \: L; I
(setq p41 (list x (- y b) z))$ g% q0 |& S2 H) ?0 M& t
(command "extrude" (list (entlast) p23) "" h ang);;;;;;
% ^1 O8 ^1 Q8 N9 K8 V9 N (ssadd (entlast) ss);;;;;0 I3 O" [% r' y9 H1 I# p
(setq p1 (list (+ x r) y (+ z h)) ;+X点
- |2 R- {$ D$ O( \5 D3 ] p2 (list x (+ r y) (+ z h)) ;+Y点
: r/ u. Y0 G0 K' Q$ Q% H p3 (list (- x r) y (+ z h)) ;-X点7 U* |8 a2 {# ]
p4 (list x (- y r) (+ z h))) ;-Y点
L$ o- Q4 O8 `5 o& {$ e, N$ G (command "slice" (list (entlast) p23) "" p01 p02 p1 p03) ;;;;;
/ Z, D7 o) T! T: n (command "slice" (list (entlast) p23) "" p03 p04 p3 p01): @7 A5 \0 l9 I+ L; b" ^7 l
(command "slice" (list (entlast) p23) "" p01 p4 p1 p3)
( w* i8 p: e( s/ D" n2 e& { (command "slice" (list (entlast) p23) "" p02 p1 p2 p4)
: c' q8 B/ h( v% Z& M- C3 u (command "slice" (list (entlast) p23) "" p03 p2 p3 p1)
2 b: A9 w" B: g6 g2 ^ (command "slice" (list (entlast) p23) "" p04 p3 p4 p2)
8 p7 K: J0 @; X5 X6 v: T7 f (setq pt11 (+ x (* r (cos (atan (/ b a)))))7 L& b" ~5 Q, d1 l' o$ V6 c, `
pt12 (- y (* r (sin (atan (/ b a)))))
7 R3 K$ z4 O0 @ r1 r pt13 (+ z h))' I# G" ]& H. q
(setq pt1 (list pt11 pt12 pt13)) ;射线交点1* C4 A7 }( F3 b$ p( a
(setq pt21 (- x (* r (cos (atan (/ b a)))))
A$ C! W! z" J1 ?. A j4 i9 a pt22 (+ y (* r (sin (atan (/ b a)))))& P- i* S5 ~8 w' j- @9 d B( m1 ^
pt23 (+ z h))) t/ O5 f* t3 T% G ?& q, `
(setq pt2 (list pt21 pt22 pt23)) ;射线交点2* d, N) M" a0 i# v- r3 B
(setq d01 (distance p01 pt1)
4 L* F8 ]' g) y) r/ ~$ V. B d02 (distance p01 pt2)
1 u+ F: E" S5 m# g d12 (distance pt1 pt2))
$ ^" j: I' r8 b6 y (setq c (/ d01 d02)), x3 _ ^# W+ z2 _" x$ p( G1 A% w; ~
(setq pt01 (/ (+ pt11 (* c pt21))(+ 1 c)))9 M" r! o7 U1 @# U3 _& z8 ^
(setq pt02 (/ (+ pt12 (* c pt22))(+ 1 c)))* P& h5 ~4 E9 A3 z( T7 B
(setq pt03 (+ z h))9 k q$ b" j2 J7 u1 Y9 d3 W! w
(setq pt0 (list pt01 pt02 pt03)) ;椭圆锥圆心
: W' r u. {4 F/ W7 E (setq k (angle pt0 pt1))6 h0 z$ _3 `5 h7 `: F/ h
(setq aa (sqrt (* (distance pt0 pt1) (distance pt0 pt2))))
* z, ?, a6 G) ]! L (setq e (/ (- (+ (* d01 d01) (* d02 d02)) (* d12 d12))& B8 }( V* Q) J- f
(* 2 d01 d02)))1 P0 Q; T" i5 v6 [6 E. n- p$ i
(setq ang1 (+ (atan (/ (- 0 e) (sqrt (- 1 (* e e))))) (* 2 (atan 1))))
" P8 F Q" i" o; l! u8 n (setq bb (/ (* (sin (/ ang1 2)) (distance p01 pt0)) (cos (/ ang1 2))))/ k8 o/ m: t/ E8 {+ i' H
(command "ucs" "za" pt0 p01)
/ H' h% I; k5 m/ I: k (setq pp1 (list aa 0 0))- R" ?+ s* n+ {0 C
(setq pp2 (list (- 0 aa) 0 0))$ D" s+ _! [( ~) I' X; z) C" m; V
(setq pp3 (list 0 0 (distance pt0 p01)))
8 T+ R6 n, j+ y1 z2 h (command "cone" "e" "c" "" pp1 bb "a" pp3)
+ F. b6 L" g. Y& z4 ] (command "ucs" "p")8 a9 \( R7 c3 F: r- `
(command "slice" "l" "" p1 p2 p3 p01)$ ]3 k0 [: Z/ a% L" |9 [/ D
(setq ppp1 (list (+ x (/ r (sqrt 2)))(- y (/ r (sqrt 2)))(+ z h)))* p) W- f8 C3 _# _8 v# Q
(setq ppp2 (list (+ x (/ r (sqrt 2)))(+ x (/ r (sqrt 2)))(+ z h)))
3 j; M) W- a) o; {! B9 g7 V (setq ppp3 (list (- x (/ r (sqrt 2)))(+ x (/ r (sqrt 2)))(+ z h)))
; M* @8 Y3 N6 _3 g (setq ppp4 (list (- x (/ r (sqrt 2)))(- y (/ r (sqrt 2)))(+ z h)))% c9 R" }: w: _7 q
(command "slice" "l" "" p1 p4 p01 (list (+ x a) (- y b) (+ z h)))
3 a) B: N6 n1 g) k; E" l. g (ssadd (entlast) ss);;;;;;. L: O# P: q+ l# c
(command "mirror" "l" "" p23 p41 "n")
8 j4 i+ I! J/ F (ssadd (entlast) ss);;;;;;- e6 C" x$ d* M l/ Y' o
(command "mirror" "l" "" p12 p34 "n")
, y6 z% P+ @; {0 L$ b7 i7 y7 d% c (ssadd (entlast) ss);;;;;;
* w, y# [: v- _2 |8 A- [( t' q (command "mirror" "l" "" p23 p41 "n")- M) F4 m3 o# @- @
(ssadd (entlast) ss);;;;;
' E- u- M5 J1 m. G# k' p (command "union" ss "")6 z- n9 ~$ k' M7 O I6 C- W
(setvar "osmode" oldos)
! B0 f/ j1 K- `; U7 [+ z9 F8 r" X (princ)
! a9 {9 b- P K/ q. _2 j# B* K- d)
7 N$ R' D# ?6 t4 r( o(defun R->D (number)- C% V6 W2 p" i
(* 180 (/ number pi))9 c% o; ~, r; J0 f/ ?$ |
)
# }& f# L+ Y2 z! N
- d- N) F4 U/ q( i Q0 E[ 本帖最后由 woaishuijia 于 2008-7-3 17:24 编辑 ] |
评分
-
查看全部评分
|
楼主
- @' _! R& e6 T1 h
发表于 2008-7-2 17:13:25