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。
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(defun C:hath()4 f1 P. [( S) b1 w; K# l
(setq DIMENSION (car (entsel)))0 A2 ~- f+ m4 a I% l5 Z: f3 }
(setq SSL NIL)6 K4 k/ g7 G3 q# L9 R/ Y; U
(setq ssL (ssadd))
! L e* Y- _, Z(ssadd DIMENSION SSL)+ y$ s, o' ]- b' d' A
(setq DIMENSION (entget DIMENSION))0 H* O' I, d6 z# {: g$ \: O
(setq no (cdr (assoc '98 DIMENSION)))
% u0 w1 e) q6 o. ~" E! t(if (<= no 3)$ R H4 c8 c* }0 i
(progn1 e4 A" v) U; C2 M8 u2 o p- c5 j
(if (= no 1)/ r2 A0 R5 i' h
(progn' d+ V2 c7 J# I' T8 G' C, h9 ]$ O& c
(setq l1 (length DIMENSION))
* z. \9 E4 \8 g, ^5 e2 N( u(setq p1 (cdr (nth (- l1 1) DIMENSION)))
( n+ d% `: W; m5 h! |( ?; A, _0 K(command "-bhatch" p1 "")
' _5 n' B7 V3 M- s; l0 B(command "_erase" SSL "")0 s8 {* y+ T8 Y% }; L
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(if (= no 2)
5 ^; m4 [& o& ~) K- }9 ?* N8 d(progn {5 N* x2 i3 j0 m
(setq l1 (length DIMENSION))
( U6 ?' H) w' [2 l! N5 S(setq p1 (cdr (nth (- l1 1) DIMENSION)))
, u- }6 f, [* R(setq p2 (cdr (nth (- l1 2) DIMENSION)))
; }$ m8 a0 s1 v, i( o(command "-bhatch" p1 p2 "")7 i+ L7 V/ H& G2 O: N
(command "_erase" SSL "")
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! z4 i8 l/ i |* I0 G* I1 y A(if (= no 3)
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(setq l1 (length DIMENSION))
* |+ f* E N j1 z6 d(setq p1 (cdr (nth (- l1 1) DIMENSION))); B. O+ w5 c8 `+ v! T
(setq p2 (cdr (nth (- l1 2) DIMENSION))); y3 @& b" }+ m" N/ |- a
(setq p3 (cdr (nth (- l1 3) DIMENSION)))
( x8 U: I8 C$ v. @2 o6 J: ~% _(command "-bhatch" p1 p2 p3 "")
) }) o5 G/ `+ p6 q" Y, U(command "_erase" SSL "")
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))
" P3 @6 f+ b4 H" i(if (> no 3)(prompt "请选择简单图形!"))
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