重画剖面线:如果剖面线的边界发生变化,如拉伸后剖面线没有与边界同步调整,下面的程序可以“修复剖面线”。只对简单的图形有效(《=3 个分开的图形)。当然图形得是封闭的,原来的剖面线位置变化不大。6 r( e6 L7 Y: G
) A. g4 D' |. {; G(defun C:hath()
" I8 G& `* s; U% B2 R/ s: T- V(setq DIMENSION (car (entsel))); V1 ]! V, @% J- J. {5 n1 N
(setq SSL NIL)# x5 u2 t5 h `. u, @" L( y
(setq ssL (ssadd)) " T9 t; U) l+ H! m: n1 ]4 Y
(ssadd DIMENSION SSL)
& p* P2 X7 U" g0 G(setq DIMENSION (entget DIMENSION))! o( B7 m0 L( l- y6 l0 ?6 T
(setq no (cdr (assoc '98 DIMENSION)))) l* J# E) k4 r9 u
(if (<= no 3)! W, e+ ?- y; c7 D2 y, T
(progn
) n; U7 t9 I+ f+ T- S' i3 P- o(if (= no 1)$ r, B: x# I+ Z+ r& [
(progn3 g, x+ b. Z6 c" k2 f$ L! K
(setq l1 (length DIMENSION))
! v. S; i9 S: r$ k: ` \(setq p1 (cdr (nth (- l1 1) DIMENSION)))5 ]% M0 ?1 G3 j8 C& y$ l3 k. G$ C
(command "-bhatch" p1 "")1 }( x0 Y0 S+ O- J
(command "_erase" SSL ""). V2 G" K9 U$ _& a8 S8 q4 E
))1 y* B5 J8 |, E0 |8 e5 M- ]
(if (= no 2)% k9 l. m& L& G- k$ ~ k
(progn
0 }' y6 F/ [& ?; O `* T(setq l1 (length DIMENSION))( n1 w$ n: x, A: x& h- Z6 |5 \
(setq p1 (cdr (nth (- l1 1) DIMENSION)))
. E" Z0 n% f; l3 M s( v. A, p(setq p2 (cdr (nth (- l1 2) DIMENSION)))' O" h. R! i! r* t: y& v
(command "-bhatch" p1 p2 "")
g( j I. P* r4 {* u5 H(command "_erase" SSL ""), m! l2 J3 W$ l! I2 O1 F
))
4 Y/ J, Q# h2 P) M1 m D(if (= no 3); Y0 y" G$ W/ P7 D% m
(progn
* ~* ~; M& Q3 N' q(setq l1 (length DIMENSION))
% }% W4 z* O( O; W. J" [(setq p1 (cdr (nth (- l1 1) DIMENSION)))
V$ e& W3 u; U# @/ z' E" M7 M(setq p2 (cdr (nth (- l1 2) DIMENSION)))
4 b6 k) J4 e5 N7 N' e4 e, J: f9 l(setq p3 (cdr (nth (- l1 3) DIMENSION)))% o- j) {! z) G4 o2 S0 `# P6 _( X
(command "-bhatch" p1 p2 p3 "")2 t6 `/ [! l4 @0 u+ W- `$ w
(command "_erase" SSL "")
7 f- ]9 |8 q* L0 Y2 W, x9 A# {))
$ R% j7 R$ [( a2 Y( A8 {) `8 W))
+ W5 B7 `# Q# [' a5 T5 ?, @(if (> no 3)(prompt "请选择简单图形!"))$ u9 v: s; a, b3 u1 j2 q
) |