hnfsf 发表于 2008-1-31 19:43:00

转，求交点

<p>;;;get inters from <br/><br/>(defun c:j (/ osm)<br/>&nbsp; (setvar "cmdecho" 0)<br/>&nbsp; (setq osm (getvar "osmode"))<br/>&nbsp; (setvar "osmode" 0)<br/><br/>&nbsp; (defun getinter (s1&nbsp; &nbsp; &nbsp; s2&nbsp; &nbsp; /&nbsp; &nbsp; name&nbsp; dxf_nub&nbsp; &nbsp; &nbsp; &nbsp; long1<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; long2&nbsp; long3&nbsp; &nbsp; x&nbsp; &nbsp; lst&nbsp; &nbsp; lst1&nbsp; lst2&nbsp; lst3<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; lst4&nbsp; &nbsp; &nbsp; lst5&nbsp; &nbsp; lst6&nbsp; &nbsp; lst7&nbsp; lst8&nbsp; pt<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/><br/><br/><br/><br/>;;;获取图元组码<br/>&nbsp; &nbsp; (defun getdxf (name dxf_nub /)<br/>&nbsp; &nbsp; &nbsp; (cdr (assoc dxf_nub (entget name)))<br/>&nbsp; &nbsp; )<br/><br/><br/>;;;海伦公式，知道三边长求面积再求某高<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;传进三边长，传出第一边的高<br/>&nbsp; &nbsp; (defun geth&nbsp; &nbsp; (long1 long2 long3 / s)<br/>&nbsp; &nbsp; &nbsp; (setq s (/ (+ long1 long2 long3) 2.))<br/>&nbsp; &nbsp; &nbsp; (setq<br/>&nbsp; &nbsp; dis_l2c&nbsp; &nbsp; (* 2.<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (/ (sqrt (* s (- s long1) (- s long2) (- s long3)))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; long1<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>;;;返回表过滤,去除重复和空的表素<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;传进表x，传出表lst<br/>&nbsp; &nbsp; (defun filters (x / len i j a b notin)<br/>&nbsp; &nbsp; &nbsp; (setq len (length x))<br/>&nbsp; &nbsp; &nbsp; (setq lst (list '()))<br/>&nbsp; &nbsp; &nbsp; (setq i 0)<br/>&nbsp; &nbsp; &nbsp; (setq notin nil)<br/>&nbsp; &nbsp; &nbsp; (if (&gt; len 1)<br/>&nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; (repeat len<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq a (nth i x))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (if&nbsp; &nbsp; a<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq j i)<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq notin nil)<br/>&nbsp; &nbsp; &nbsp; &nbsp; (repeat&nbsp; &nbsp; (- len j 1)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq b (nth (1+ j) x))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (if (and b<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (= (rtos (car a) 2 4) (rtos (car b) 2 4))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (= (rtos (cadr a) 2 4) (rtos (cadr b) 2 4))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (= (rtos (last a) 2 4) (rtos (last b) 2 4))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq notin t)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq j (1+ j))<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; (if (not notin)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst (cons a lst))<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq i (1+ i))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (setq lst (cdr (reverse lst)))<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; (car x)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/><br/><br/><br/><br/>;;;点和点重合的断<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;<br/>&nbsp; &nbsp; (defun POINT2POINT (x /)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;(print "p2p")<br/>&nbsp; &nbsp; &nbsp; (if<br/>&nbsp; &nbsp; (= 0<br/>&nbsp; &nbsp; &nbsp; (distance (getdxf s1 10)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (getdxf s2 10)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; (getdxf s1 10)<br/>&nbsp; &nbsp; nil<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/><br/><br/>;;;点和线的判断,<a name="baidusnap0"></a><b style="COLOR: black; BACKGROUND-COLOR: #ffff66;">点到</b>两端点长度等于线长<br/>&nbsp; &nbsp; (defun POINT2LINE (x / pt pt1 pt2 s3)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;(print "pt2l")<br/>&nbsp; &nbsp; &nbsp; (if (= x 1)<br/>&nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; (setq s3 s1)<br/>&nbsp; &nbsp; &nbsp; (setq s1 s2)<br/>&nbsp; &nbsp; &nbsp; (setq s2 s3)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (setq pt&nbsp; &nbsp; (getdxf s1 10)<br/>&nbsp; &nbsp; &nbsp; &nbsp; pt1&nbsp; &nbsp; (getdxf s2 10)<br/>&nbsp; &nbsp; &nbsp; &nbsp; pt2&nbsp; &nbsp; (getdxf s2 11)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (if (= (rtos (+ (distance pt pt1)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (distance pt pt2)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 4<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; (rtos (distance pt1 pt2) 2 4)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; (getdxf s1 10)<br/>&nbsp; &nbsp; nil<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/><br/><br/>;;;点和圆弧的判断，判断出圆弧中点，利用inters函数知道点是不是在圆弧上<br/>&nbsp; &nbsp; (defun POINT2ARC (x / s3 pt6 c r anga angb angmax angmin ac cen)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;(print "pt2arc")<br/>&nbsp; &nbsp; &nbsp; (if (= x 1)<br/>&nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; (setq s3 s1)<br/>&nbsp; &nbsp; &nbsp; (setq s1 s2)<br/>&nbsp; &nbsp; &nbsp; (setq s2 s3)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (setq pt6 (getdxf s1 10))<br/>&nbsp; &nbsp; &nbsp; (setq c (getdxf s2 10))<br/>&nbsp; &nbsp; &nbsp; (setq r (getdxf s2 40))<br/>&nbsp; &nbsp; &nbsp; (if (= (rtos (distance c pt6) 2 4)<br/>&nbsp; &nbsp; &nbsp; &nbsp; (rtos r 2 4)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; (setq anga (getdxf s2 50))<br/>&nbsp; &nbsp; &nbsp; (setq angb (getdxf s2 51))<br/>&nbsp; &nbsp; &nbsp; (setq angmax (max anga angb))<br/>&nbsp; &nbsp; &nbsp; (setq angmin (min anga angb))<br/>&nbsp; &nbsp; &nbsp; (if (= angmax angb)<br/>;;;判断圆弧的中点<br/>&nbsp; &nbsp; &nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq ac (* (- angmax angmin) r))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq cen (polar c (+ angmin (/ (- angmax angmin) 2.)) r))<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq angc (- (* 2. pi) (- angmax angmin)))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq ac (* angc r))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq cen (polar c (+ angmax (/ angc 2.)) r))<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (if (or (= 0 (distance pt6 cen))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (inters (polar c (getdxf s2 50) r) cen c pt6)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (inters (polar c (getdxf s2 51) r) cen c pt6)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; (getdxf s1 10)<br/>&nbsp; &nbsp; &nbsp; &nbsp; nil<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/><br/>;;;点和圆的判断,<b style="COLOR: black; BACKGROUND-COLOR: #ffff66;">点到</b>边的距离等于半径长<br/>&nbsp; &nbsp; (defun POINT2CIRCLE&nbsp; &nbsp; (x / s3)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;(print "pt2c")<br/>&nbsp; &nbsp; &nbsp; (if (= x 1)<br/>&nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; (setq s3 s1)<br/>&nbsp; &nbsp; &nbsp; (setq s1 s2)<br/>&nbsp; &nbsp; &nbsp; (setq s2 s3)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (if (= (rtos (distance (getdxf s2 10) (getdxf s1 10)) 2 4)<br/>&nbsp; &nbsp; &nbsp; &nbsp; (rtos (getdxf s2 40) 2 4)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; (getdxf s1 10)<br/>&nbsp; &nbsp; nil<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/><br/>;;;点和多线判断，把多线打散，循环调用点线函数<br/>&nbsp; &nbsp; (defun POINT2LWPOLYLINE (x / temp ntemp sstemp s9 pt)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;(print "pt2pl")<br/>&nbsp; &nbsp; &nbsp; (if (= x 1)<br/>&nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; (setq s3 s1)<br/>&nbsp; &nbsp; &nbsp; (setq s1 s2)<br/>&nbsp; &nbsp; &nbsp; (setq s2 s3)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (setq temp (entget s2))<br/>&nbsp; &nbsp; &nbsp; (entmake temp)<br/>&nbsp; &nbsp; &nbsp; (setq ntemp (entlast))<br/>&nbsp; &nbsp; &nbsp; (command "explode" s2 "")<br/>&nbsp; &nbsp; &nbsp; (setq s2 (entnext ntemp))<br/>&nbsp; &nbsp; &nbsp; (setq sstemp (ssadd))<br/>&nbsp; &nbsp; &nbsp; (while s2<br/>&nbsp; &nbsp; (setq s9 s2)<br/>&nbsp; &nbsp; (cond ((= (getdxf s2 0) "LINE")<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (if (POINT2LINE 0)<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq pt t)<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq pt nil)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ((= (getdxf s2 0) "ARC")<br/><br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (if (POINT2ARC 0)<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq pt t)<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq pt nil)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; (ssadd s9 sstemp)<br/>&nbsp; &nbsp; (setq s2 (entnext s9))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (command "erase" sstemp "")<br/>&nbsp; &nbsp; &nbsp; (if pt<br/>&nbsp; &nbsp; (getdxf s1 10)<br/>&nbsp; &nbsp; nil<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/><br/>;;;线和线判断<br/>&nbsp; &nbsp; (defun LINE2LINE (x /)<br/>&nbsp; &nbsp; &nbsp; (inters (getdxf s1 10)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (getdxf s1 11)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (getdxf s2 10)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (getdxf s2 11)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>;;;线和圆的判断,先判断圆心<a name="baidusnap1"></a><b style="COLOR: black; BACKGROUND-COLOR: #a0ffff;">到线的距离</b>，再判断圆心到线的垂足点，再判断圆线交点是否在线上<br/>&nbsp; &nbsp; (defun LINE2CIRCLE (x&nbsp; &nbsp; /&nbsp; &nbsp; &nbsp; &nbsp; long1 long2&nbsp; &nbsp; long3 s&nbsp; &nbsp; &nbsp; &nbsp; s3&nbsp; &nbsp; &nbsp; r<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; c&nbsp; &nbsp; pt1&nbsp; pt2&nbsp; &nbsp; &nbsp; ang&nbsp; &nbsp; dis_l2c&nbsp; &nbsp; &nbsp; &nbsp; ang&nbsp; &nbsp; &nbsp; inter<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; s4<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;(print "l2c")<br/>&nbsp; &nbsp; &nbsp; (if (= x 1)<br/>&nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; (setq s3 s1)<br/>&nbsp; &nbsp; &nbsp; (setq s1 s2)<br/>&nbsp; &nbsp; &nbsp; (setq s2 s3)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (setq s4 s1)<br/>&nbsp; &nbsp; &nbsp; (setq r (getdxf s2 40))<br/>&nbsp; &nbsp; &nbsp; (setq c (getdxf s2 10))<br/>&nbsp; &nbsp; &nbsp; (setq pt1&nbsp; &nbsp; (getdxf s1 10)<br/>&nbsp; &nbsp; &nbsp; &nbsp; pt2&nbsp; &nbsp; (getdxf s1 11)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (setq longa (distance pt1 pt2))&nbsp; &nbsp; ;线长<br/>&nbsp; &nbsp; &nbsp; (setq longb (distance pt1 c))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;圆心端点一距离<br/>&nbsp; &nbsp; &nbsp; (setq longc (distance pt2 c))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;圆心端点二距离<br/>&nbsp; &nbsp; &nbsp; (setq dis_l2c (geth longa longb longc)) ;圆心到直线距离<br/>&nbsp; &nbsp; &nbsp; (setq ang (angle pt1 pt2))&nbsp; &nbsp; ;直线的一个角度<br/>;;;判断垂足---&gt;<br/>&nbsp; &nbsp; &nbsp; (setq inter (polar c (+ ang (/ pi 2.)) dis_l2c))<br/>&nbsp; &nbsp; &nbsp; (setq pt nil)<br/>&nbsp; &nbsp; &nbsp; (while (not pt)<br/>&nbsp; &nbsp; (command "point" inter "")<br/>&nbsp; &nbsp; (setq s2 (entlast))<br/>&nbsp; &nbsp; (if (or&nbsp; &nbsp; (= (rtos (angle inter pt1) 2 5)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (rtos (angle inter pt2) 2 5)<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; (POINT2LINE 1)<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (setq pt inter)<br/>&nbsp; &nbsp; &nbsp; (progn (setq pt t)<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq inter (polar c (- ang (/ pi 2.)) dis_l2c))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; (entdel (entlast))<br/>&nbsp; &nbsp; &nbsp; )<br/><br/>;;;&lt;---判断垂足<br/>&nbsp; &nbsp; &nbsp; (setq lst (list '()))<br/>&nbsp; &nbsp; &nbsp; (cond<br/>&nbsp; &nbsp; ((= r dis_l2c)&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;相切情况<br/>&nbsp; &nbsp; pt<br/>&nbsp; &nbsp; )<br/><br/>&nbsp; &nbsp; ((&gt; r dis_l2c)&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;相交情况<br/>&nbsp; &nbsp; (setq s2 (polar inter<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (+ pi ang)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (sqrt (- (expt r 2.) (expt dis_l2c 2.)))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; (repeat 2<br/>&nbsp; &nbsp; &nbsp; (command "point" s2 "")<br/>&nbsp; &nbsp; &nbsp; (setq s2 (entlast))<br/>&nbsp; &nbsp; &nbsp; (setq s1 s4)<br/>&nbsp; &nbsp; &nbsp; (if (setq pt (POINT2LINE 1))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq lst (cons pt lst))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (entdel (entlast))<br/>&nbsp; &nbsp; &nbsp; (setq s2 (polar inter<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ang<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (sqrt (- (expt r 2.) (expt dis_l2c 2.)))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; (filters lst)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/><br/><br/>;;;线和圆弧，线和圆的交点（已经判断交点是否在线上）是否在圆弧上<br/>&nbsp; &nbsp; (defun LINE2ARC (x / s3 s5 pt3 pta pt1)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;(print "l2a")<br/>&nbsp; &nbsp; &nbsp; (if (= x 1)<br/>&nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; (setq s3 s1)<br/>&nbsp; &nbsp; &nbsp; (setq s1 s2)<br/>&nbsp; &nbsp; &nbsp; (setq s2 s3)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (setq s5 s2)<br/>&nbsp; &nbsp; &nbsp; (setq pt3 (LINE2CIRCLE 0))<br/>&nbsp; &nbsp; &nbsp; (setq lst2 (list '()))<br/>&nbsp; &nbsp; &nbsp; (setq s2 s5)<br/>&nbsp; &nbsp; &nbsp; (if (setq pta (car pt3))<br/>&nbsp; &nbsp; (cond<br/>&nbsp; &nbsp; &nbsp; ((car (cdr pt3))<br/>&nbsp; &nbsp; &nbsp; (repeat 2<br/>&nbsp; &nbsp; &nbsp; &nbsp; (command "point" pta "")<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq s2 s5)<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq s1 (entlast))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (if (setq pt1 (POINT2ARC 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst2 (cons pt1 lst2))<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; (entdel (entlast))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq pta (cadr pt3))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (filters lst2)<br/>&nbsp; &nbsp; &nbsp; )<br/><br/>&nbsp; &nbsp; &nbsp; ((not (car (cdr pt3)))<br/>&nbsp; &nbsp; &nbsp; (command "point" pta "")<br/>&nbsp; &nbsp; &nbsp; (setq s1 (entlast))<br/>&nbsp; &nbsp; &nbsp; (setq s2 s5)<br/>&nbsp; &nbsp; &nbsp; (if (setq pt1 (POINT2ARC 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq lst2 (cons pt1 lst2))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (entdel (entlast))<br/>&nbsp; &nbsp; &nbsp; (setq pta (cadr pt3))<br/>&nbsp; &nbsp; &nbsp; (filters lst2)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/><br/><br/><br/>;;;线和多线，打散后判断线和线的交点<br/>&nbsp; &nbsp; (defun LINE2LWPOLYLINE (x / s3 temp ntemp sstemp s11 pt)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;(print "l2pl")<br/>&nbsp; &nbsp; &nbsp; (if (= x 1)<br/>&nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; (setq s3 s1)<br/>&nbsp; &nbsp; &nbsp; (setq s1 s2)<br/>&nbsp; &nbsp; &nbsp; (setq s2 s3)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/><br/>&nbsp; &nbsp; &nbsp; (setq temp (entget s2))<br/>&nbsp; &nbsp; &nbsp; (entmake temp)<br/>&nbsp; &nbsp; &nbsp; (setq ntemp (entlast))<br/>&nbsp; &nbsp; &nbsp; (command "explode" s2 "")<br/>&nbsp; &nbsp; &nbsp; (setq s2 (entnext ntemp))<br/>&nbsp; &nbsp; &nbsp; (setq sstemp (ssadd))<br/>&nbsp; &nbsp; &nbsp; (setq lst7 (list '()))<br/>&nbsp; &nbsp; &nbsp; (setq s10 s1)<br/>&nbsp; &nbsp; &nbsp; (while s2<br/>&nbsp; &nbsp; (setq s11 s2)<br/>&nbsp; &nbsp; (setq s1 s10)<br/>&nbsp; &nbsp; (cond ((= (getdxf s2 0) "LINE")<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (if (setq pt (LINE2LINE 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq lst7 (cons pt lst7))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ((= (getdxf s2 0) "ARC")<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (if (setq pt (LINE2ARC 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (if (cdr pt)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst7 (cons (car pt) (cons (cadr pt) lst7)))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst7 (cons (car pt) lst7))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; (ssadd s11 sstemp)<br/>&nbsp; &nbsp; (setq s2 (entnext s11))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (command "erase" sstemp "")<br/>&nbsp; &nbsp; &nbsp; (if (cdr lst7)<br/>&nbsp; &nbsp; (filters lst7)<br/>&nbsp; &nbsp; (setq pt nil)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/><br/><br/>;;;圆和圆，算出弦长，弦中心点，得到两个交点<br/>&nbsp; &nbsp; (defun CIRCLE2CIRCLE<br/>&nbsp; &nbsp; &nbsp; (x / r1 r2 c1 c2 dis ang chord2 ptc pt1 pt2 pta ptb ptc)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;(print "c2c")<br/>&nbsp; &nbsp; &nbsp; (setq r1 (getdxf s1 40))<br/>&nbsp; &nbsp; &nbsp; (setq r2 (getdxf s2 40))<br/>&nbsp; &nbsp; &nbsp; (setq c1 (getdxf s1 10))<br/>&nbsp; &nbsp; &nbsp; (setq c2 (getdxf s2 10))<br/>&nbsp; &nbsp; &nbsp; (setq dis (distance c1 c2))<br/>&nbsp; &nbsp; &nbsp; (setq ang (angle c1 c2))<br/>&nbsp; &nbsp; &nbsp; (cond<br/>&nbsp; &nbsp; ((&lt; (+ dis (min r1 r2)) (max r1 r2))<br/>&nbsp; &nbsp; nil<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= (rtos (+ r1 r2) 2 4) (rtos dis 2 4))<br/>;;;一个交点的情况<br/>&nbsp; &nbsp; (setq pt (polar c1 ang r1))<br/>&nbsp; &nbsp; (command "point" pt "")<br/>&nbsp; &nbsp; (setq s1 (entlast))<br/>&nbsp; &nbsp; (if (POINT2CIRCLE 0)<br/>&nbsp; &nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; &nbsp; (entdel (entlast))<br/>&nbsp; &nbsp; &nbsp; &nbsp; pt<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; &nbsp; (entdel (entlast))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq pt (polar c1 (+ pi ang) r1))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((&gt; (+ r1 r2) dis)<br/>;;;两个交点的情况<br/>&nbsp; &nbsp; (setq chord2 (geth dis r1 r2))<br/>;;;弦长的一半<br/>&nbsp; &nbsp; (setq lst (list '()))<br/>&nbsp; &nbsp; (setq<br/>&nbsp; &nbsp; &nbsp; ptc (polar c1 ang (sqrt (- (expt r1 2) (expt chord2 2))))<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; (setq pt1 (polar ptc (+ ang (/ pi 2.)) chord2))<br/>&nbsp; &nbsp; (setq pt2 (polar ptc (- ang (/ pi 2.)) chord2))<br/>&nbsp; &nbsp; (command "point" pt1 "")<br/>&nbsp; &nbsp; (setq s1 (entlast))<br/>&nbsp; &nbsp; (if (POINT2CIRCLE 0)<br/>&nbsp; &nbsp; &nbsp; (setq pta t)<br/>&nbsp; &nbsp; &nbsp; (setq pta nil)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; (entdel (entlast))<br/>&nbsp; &nbsp; (command "point" pt2 "")<br/>&nbsp; &nbsp; (setq s1 (entlast))<br/>&nbsp; &nbsp; (if (POINT2CIRCLE 0)<br/>&nbsp; &nbsp; &nbsp; (setq ptb t)<br/>&nbsp; &nbsp; &nbsp; (setq ptb nil)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; (entdel (entlast))<br/>&nbsp; &nbsp; (if (or (= pta t) (= ptb t))<br/>&nbsp; &nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq lst (filters (cons pt1 (cons pt2 lst))))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq ptc (polar c1<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (+ pi ang)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (sqrt (- (expt r1 2) (expt chord2 2)))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq pt1 (polar ptc (+ ang (/ pi 2.)) chord2))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq pt2 (polar ptc (- ang (/ pi 2.)) chord2))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq lst (filters (cons pt1 (cons pt2 lst))))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/><br/><br/>&nbsp; &nbsp; )<br/>;;;圆和圆弧，获取两圆交点，判断交点是否在圆弧上<br/>&nbsp; &nbsp; (defun CIRCLE2ARC (x / s3 pt1 pt2)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;(print "c2a")<br/>&nbsp; &nbsp; &nbsp; (if (= x 1)<br/>&nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; (setq s3 s1)<br/>&nbsp; &nbsp; &nbsp; (setq s1 s2)<br/>&nbsp; &nbsp; &nbsp; (setq s2 s3)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (if (setq lst (CIRCLE2CIRCLE 0))<br/>&nbsp; &nbsp; (cond<br/>&nbsp; &nbsp; &nbsp; ((car (cdr lst))<br/><br/>&nbsp; &nbsp; &nbsp; (setq pt1 (car lst))<br/>&nbsp; &nbsp; &nbsp; (setq pt2 (cadr lst))<br/>&nbsp; &nbsp; &nbsp; (setq lst (list '()))<br/>&nbsp; &nbsp; &nbsp; (repeat 2<br/>&nbsp; &nbsp; &nbsp; &nbsp; (command "point" pt1 "")<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq s1 (entlast))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (if (POINT2ARC 0)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst (cons pt1 lst))<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; (entdel (entlast))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq pt1 pt2)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (filters lst)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; ((not (car (cdr lst)))<br/>&nbsp; &nbsp; &nbsp; (setq pt1 (car lst))<br/>&nbsp; &nbsp; &nbsp; (setq lst (list '()))<br/><br/>&nbsp; &nbsp; &nbsp; (command "point" pt1 "")<br/>&nbsp; &nbsp; &nbsp; (setq s1 (entlast))<br/>&nbsp; &nbsp; &nbsp; (if (POINT2ARC 0)<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq lst (cons pt1 lst))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (entdel (entlast))<br/><br/>&nbsp; &nbsp; &nbsp; (setq pt1 pt2)<br/>&nbsp; &nbsp; &nbsp; (filters lst)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; nil<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/><br/>;;;圆和多线，打散后调用线和圆相交函数<br/>&nbsp; &nbsp; (defun CIRCLE2LWPOLYLINE (x / s3 s8 temp ntemp sstemp pt i2)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;(print "c2pl")<br/>&nbsp; &nbsp; &nbsp; (if (= x 1)<br/>&nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; (setq s3 s1)<br/>&nbsp; &nbsp; &nbsp; (setq s1 s2)<br/>&nbsp; &nbsp; &nbsp; (setq s2 s3)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (setq s8 s1)<br/>&nbsp; &nbsp; &nbsp; (setq temp (entget s2))<br/>&nbsp; &nbsp; &nbsp; (entmake temp)<br/>&nbsp; &nbsp; &nbsp; (setq ntemp (entlast))<br/>&nbsp; &nbsp; &nbsp; (command "explode" s2 "")<br/>&nbsp; &nbsp; &nbsp; (setq s2 (entnext ntemp))<br/>&nbsp; &nbsp; &nbsp; (setq sstemp (ssadd))<br/>&nbsp; &nbsp; &nbsp; (setq lst6 (list '()))<br/>&nbsp; &nbsp; &nbsp; (while s2<br/>&nbsp; &nbsp; (ssadd s2 sstemp)<br/>&nbsp; &nbsp; (setq s2 (entnext s2))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (setq i2 0)<br/>&nbsp; &nbsp; &nbsp; (setq len (sslength sstemp))<br/>&nbsp; &nbsp; &nbsp; (repeat len<br/>&nbsp; &nbsp; (setq s2 s8)<br/>&nbsp; &nbsp; (setq s1 (ssname sstemp i2))<br/>&nbsp; &nbsp; (cond ((= "LINE" (getdxf s1 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (if (setq pt (LINE2CIRCLE 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (if (cdr pt)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst6 (cons (car pt) (cons (cadr pt) lst6)))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst6 (cons (car pt) lst6))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ((= "ARC" (getdxf s1 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (if (setq pt (CIRCLE2ARC 1))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (if (cdr pt)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst6 (cons (car pt) (cons (cadr pt) lst6)))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst6 (cons (car pt) lst6))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; (setq i2 (1+ i2))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (command "erase" sstemp "")<br/>&nbsp; &nbsp; &nbsp; (if (cdr lst6)<br/>&nbsp; &nbsp; (filters lst6)<br/>&nbsp; &nbsp; nil<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/><br/>;;;圆弧和圆弧，获取两圆交点，判断该点是否在圆弧上<br/>&nbsp; &nbsp; (defun ARC2ARC (x / s13 s14 pt pta pt1)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;(print "a2a")<br/>&nbsp; &nbsp; &nbsp; (setq s13 s1)<br/>&nbsp; &nbsp; &nbsp; (setq s14 s2)<br/>&nbsp; &nbsp; &nbsp; (setq pt (CIRCLE2ARC 0))<br/>&nbsp; &nbsp; &nbsp; (setq lst2 (list '()))<br/>&nbsp; &nbsp; &nbsp; (if (setq pta (car pt))<br/>&nbsp; &nbsp; (cond<br/>&nbsp; &nbsp; &nbsp; ((car (cdr pt))<br/>&nbsp; &nbsp; &nbsp; (repeat 2<br/>&nbsp; &nbsp; &nbsp; &nbsp; (command "point" pta "")<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq s1 (entlast))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq s2 s13)<br/>&nbsp; &nbsp; &nbsp; &nbsp; (if (setq pt1 (POINT2ARC 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst2 (cons pt1 lst2))<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; (entdel (entlast))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq pta (cadr pt))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (filters lst2)<br/>&nbsp; &nbsp; &nbsp; )<br/><br/>&nbsp; &nbsp; &nbsp; ((not (car (cdr pt)))<br/>&nbsp; &nbsp; &nbsp; (command "point" pta "")<br/>&nbsp; &nbsp; &nbsp; (setq s1 (entlast))<br/>&nbsp; &nbsp; &nbsp; (setq s2 s13)<br/>&nbsp; &nbsp; &nbsp; (if (setq pt1 (POINT2ARC 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq lst2 (cons pt1 lst2))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (entdel (entlast))<br/>&nbsp; &nbsp; &nbsp; (setq pta (cadr pt))<br/>&nbsp; &nbsp; &nbsp; (filters lst2)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (nil t)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; nil<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>;;;圆弧和多线，打散调用线和圆弧判断函数<br/>&nbsp; &nbsp; (defun ARC2LWPOLYLINE (x / s3 temp ntemp sstemp s6 i len pt)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;(print "a2lw")<br/>&nbsp; &nbsp; &nbsp; (if (= x 1)<br/>&nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; (setq s3 s1)<br/>&nbsp; &nbsp; &nbsp; (setq s1 s2)<br/>&nbsp; &nbsp; &nbsp; (setq s2 s3)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (setq temp (entget s2))<br/>&nbsp; &nbsp; &nbsp; (entmake temp)<br/>&nbsp; &nbsp; &nbsp; (setq ntemp (entlast))<br/>&nbsp; &nbsp; &nbsp; (command "explode" s2 "")<br/>&nbsp; &nbsp; &nbsp; (setq s2 (entnext ntemp))<br/>&nbsp; &nbsp; &nbsp; (setq sstemp (ssadd))<br/>&nbsp; &nbsp; &nbsp; (setq lst4 (list '()))<br/>&nbsp; &nbsp; &nbsp; (while s2<br/>&nbsp; &nbsp; (ssadd s2 sstemp)<br/>&nbsp; &nbsp; (setq s2 (entnext s2))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (setq i 0)<br/>&nbsp; &nbsp; &nbsp; (setq len (sslength sstemp))<br/>&nbsp; &nbsp; &nbsp; (setq s6 s1)<br/>&nbsp; &nbsp; &nbsp; (repeat len<br/>&nbsp; &nbsp; (setq s2 (ssname sstemp i))<br/>&nbsp; &nbsp; (cond ((= "LINE" (getdxf s2 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (if (setq pt (LINE2ARC 1))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (if (cdr pt)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst4 (cons (car pt) (cons (cadr pt) lst4)))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst4 (cons (car pt) lst4))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ((= "ARC" (getdxf s2 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (if (setq pt (ARC2ARC 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (if (cdr pt)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst4 (cons (car pt) (cons (cadr pt) lst4)))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst4 (cons (car pt) lst4))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; (setq s1 s6)<br/>&nbsp; &nbsp; (setq i (1+ i))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (command "erase" sstemp "")<br/>&nbsp; &nbsp; &nbsp; (if (cdr lst4)<br/>&nbsp; &nbsp; (filters lst4)<br/>&nbsp; &nbsp; nil<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/><br/>;;;多线和多线判断<br/>&nbsp; &nbsp; (defun LWPOLYLINE2LWPOLYLINE<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (x&nbsp; &nbsp; /&nbsp; &nbsp; temp1&nbsp; ntemp1 temp2<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ntemp1 ntemp2&nbsp; &nbsp; sstemp1&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; sstemp2<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; len1&nbsp; &nbsp; len2&nbsp; &nbsp; i&nbsp; &nbsp; &nbsp; j&nbsp; &nbsp; &nbsp; pta<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ptb&nbsp; &nbsp; ptc&nbsp; &nbsp; ptd&nbsp; &nbsp; s15<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;(print "pl2pl")<br/>&nbsp; &nbsp; &nbsp; (setq temp1 (entget s1))<br/>&nbsp; &nbsp; &nbsp; (entmake temp1)<br/>&nbsp; &nbsp; &nbsp; (setq ntemp1 (entlast))<br/>&nbsp; &nbsp; &nbsp; (command "explode" s1 "")<br/>&nbsp; &nbsp; &nbsp; (setq s1 (entnext ntemp1))<br/>&nbsp; &nbsp; &nbsp; (setq sstemp1 (ssadd))<br/>&nbsp; &nbsp; &nbsp; (setq lst5 (list '()))<br/>&nbsp; &nbsp; &nbsp; (while s1<br/>&nbsp; &nbsp; (ssadd s1 sstemp1)<br/>&nbsp; &nbsp; (setq s1 (entnext s1))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (setq temp2 (entget s2))<br/>&nbsp; &nbsp; &nbsp; (entmake temp2)<br/>&nbsp; &nbsp; &nbsp; (setq ntemp2 (entlast))<br/>&nbsp; &nbsp; &nbsp; (command "explode" s2 "")<br/>&nbsp; &nbsp; &nbsp; (setq s2 (entnext ntemp2))<br/>&nbsp; &nbsp; &nbsp; (setq sstemp2 (ssadd))<br/>&nbsp; &nbsp; &nbsp; (while s2<br/>&nbsp; &nbsp; (ssadd s2 sstemp2)<br/>&nbsp; &nbsp; (setq s2 (entnext s2))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (setq i 0)<br/>&nbsp; &nbsp; &nbsp; (setq len1 (sslength sstemp1))<br/>&nbsp; &nbsp; &nbsp; (setq len2 (sslength sstemp2))<br/>&nbsp; &nbsp; &nbsp; (repeat len1<br/>&nbsp; &nbsp; (setq s1 (ssname sstemp1 i))<br/>&nbsp; &nbsp; (setq s15 s1)<br/>&nbsp; &nbsp; (setq j 0)<br/>&nbsp; &nbsp; (cond<br/>&nbsp; &nbsp; &nbsp; ((= "LINE" (getdxf s1 0))<br/>&nbsp; &nbsp; &nbsp; (repeat len2<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq s2 (ssname sstemp2 j))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (cond<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ((= "LINE" (getdxf s2 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq s1 s15)<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq pta (getdxf s1 10)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ptb (getdxf s1 11)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ptc (getdxf s2 10)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ptd (getdxf s2 11)<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; (if (setq pt (inters pta ptb ptc ptd))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst5 (cons pt lst5))<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ((= "ARC" (getdxf s2 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq s1 s15)<br/>&nbsp; &nbsp; &nbsp; &nbsp; (if (setq pt (LINE2ARC 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (if&nbsp; &nbsp; (cdr pt)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst5 (cons (car pt) (cons (cadr pt) lst5)))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst5 (cons (car pt) lst5))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq j (1+ j))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (setq i (1+ i))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; ((= "ARC" (getdxf s1 0))<br/>&nbsp; &nbsp; &nbsp; (repeat len2<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq s2 (ssname sstemp2 j))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (cond<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ((= "LINE" (getdxf s2 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq s1 s15)<br/>&nbsp; &nbsp; &nbsp; &nbsp; (if (setq pt (LINE2ARC 1))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (if&nbsp; &nbsp; (cdr pt)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst5 (cons (car pt) (cons (cadr pt) lst5)))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst5 (cons (car pt) lst5))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ((= "ARC" (getdxf s2 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq s1 s15)<br/>&nbsp; &nbsp; &nbsp; &nbsp; (if (setq pt (ARC2ARC 0))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (progn<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (if&nbsp; &nbsp; (cdr pt)<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst5 (cons (car pt) (cons (cadr pt) lst5)))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (setq lst5 (cons (car pt) lst5))<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; (setq j (1+ j))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; (setq i (1+ i))<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/><br/>&nbsp; &nbsp; &nbsp; (command "erase" sstemp1 sstemp2 "")<br/>&nbsp; &nbsp; &nbsp; (if (cdr lst5)<br/>&nbsp; &nbsp; (filters lst5)<br/>&nbsp; &nbsp; nil<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; )<br/><br/><br/><br/><br/><br/><br/>&nbsp; &nbsp; (setq dxf_name1 (getdxf s1 0))<br/>&nbsp; &nbsp; (setq dxf_name2 (getdxf s2 0))<br/><br/><br/><br/><br/>;;;图元类型判断<br/>&nbsp; &nbsp; (cond<br/>;;;点类型判断<br/>&nbsp; &nbsp; &nbsp; ((= dxf_name1 "POINT")<br/>&nbsp; &nbsp; &nbsp; (cond<br/>&nbsp; &nbsp; ((= dxf_name2 "POINT")<br/>&nbsp; &nbsp; &nbsp; (POINT2POINT 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "LINE")<br/>&nbsp; &nbsp; &nbsp; (POINT2LINE 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "ARC")<br/>&nbsp; &nbsp; &nbsp; (POINT2ARC 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "CIRCLE")<br/>&nbsp; &nbsp; &nbsp; (POINT2CIRCLE 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "POLYLLINE")<br/>&nbsp; &nbsp; &nbsp; (POINT2LWPOLYLINE 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "LWPOLYLINE")<br/>&nbsp; &nbsp; &nbsp; (POINT2LWPOLYLINE 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; (T nil)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/>;;;线类型判断<br/>&nbsp; &nbsp; &nbsp; ((= dxf_name1 "LINE")<br/>&nbsp; &nbsp; &nbsp; (cond<br/>&nbsp; &nbsp; ((= dxf_name2 "LINE")<br/>&nbsp; &nbsp; &nbsp; (LINE2LINE 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "POINT")<br/>&nbsp; &nbsp; &nbsp; (POINT2LINE 1)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "ARC")<br/>&nbsp; &nbsp; &nbsp; (LINE2ARC 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "CIRCLE")<br/>&nbsp; &nbsp; &nbsp; (LINE2CIRCLE 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "POLYLLINE")<br/>&nbsp; &nbsp; &nbsp; (LINE2LWPOLYLINE 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "LWPOLYLINE")<br/>&nbsp; &nbsp; &nbsp; (LINE2LWPOLYLINE 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; (T nil)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/>;;;圆类型判断<br/>&nbsp; &nbsp; &nbsp; ((= dxf_name1 "CIRCLE")<br/>&nbsp; &nbsp; &nbsp; (cond<br/>&nbsp; &nbsp; ((= dxf_name2 "POINT")<br/>&nbsp; &nbsp; &nbsp; (POINT2CIRCLE 1)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "LINE")<br/>&nbsp; &nbsp; &nbsp; (LINE2CIRCLE 1)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "CIRCLE")<br/>&nbsp; &nbsp; &nbsp; (CIRCLE2CIRCLE 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "ARC")<br/>&nbsp; &nbsp; &nbsp; (CIRCLE2ARC 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "POLYLLINE")<br/>&nbsp; &nbsp; &nbsp; (CIRCLE2LWPOLYLINE 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "LWPOLYLINE")<br/>&nbsp; &nbsp; &nbsp; (CIRCLE2LWPOLYLINE 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; (T nil)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/><br/>;;;圆弧断<br/>&nbsp; &nbsp; &nbsp; ((= dxf_name1 "ARC")<br/>&nbsp; &nbsp; &nbsp; (cond<br/>&nbsp; &nbsp; ((= dxf_name2 "POINT")<br/>&nbsp; &nbsp; &nbsp; (POINT2ARC 1)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "LINE")<br/>&nbsp; &nbsp; &nbsp; (LINE2ARC 1)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "CIRCLE")<br/>&nbsp; &nbsp; &nbsp; (CIRCLE2ARC 1)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "ARC")<br/>&nbsp; &nbsp; &nbsp; (ARC2ARC 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "POLYLLINE")<br/>&nbsp; &nbsp; &nbsp; (ARC2LWPOLYLINE 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "LWPOLYLINE")<br/>&nbsp; &nbsp; &nbsp; (ARC2LWPOLYLINE 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; (T nil)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/><br/>;;;多线判断<br/>&nbsp; &nbsp; &nbsp; ((= dxf_name1 "LWPOLYLINE")<br/>&nbsp; &nbsp; &nbsp; (cond<br/>&nbsp; &nbsp; ((= dxf_name2 "POINT")<br/>&nbsp; &nbsp; &nbsp; (POINT2LWPOLYLINE 1)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "LINE")<br/>&nbsp; &nbsp; &nbsp; (LINE2LWPOLYLINE 1)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "CIRCLE")<br/>&nbsp; &nbsp; &nbsp; (CIRCLE2LWPOLYLINE 1)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "ARC")<br/>&nbsp; &nbsp; &nbsp; (ARC2LWPOLYLINE 1)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "POLYLLINE")<br/>&nbsp; &nbsp; &nbsp; (LWPOLYLINE2LWPOLYLINE 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; ((= dxf_name2 "LWPOLYLINE")<br/>&nbsp; &nbsp; &nbsp; (LWPOLYLINE2LWPOLYLINE 0)<br/>&nbsp; &nbsp; )<br/>&nbsp; &nbsp; (T nil)<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; &nbsp; &nbsp; )<br/><br/>&nbsp; &nbsp; &nbsp; (T nil)<br/>&nbsp; &nbsp; )<br/>&nbsp; )<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ;(if (= dxf_name1 "LINE"))<br/><br/>;;;临时<br/>&nbsp; (setq a (car (entsel "选取一个图元(POINT/LINE/ARC/PLINE/CIRCLE)")))<br/>&nbsp; (print "----&gt;")<br/>&nbsp; (print "-------&gt;")<br/>&nbsp; (print "----------&gt;")<br/>&nbsp; (setq&nbsp; &nbsp; b (car<br/>&nbsp; &nbsp; &nbsp; &nbsp; (entsel "选取另外一个图元(POINT/LINE/ARC/PLINE/CIRCLE)")<br/>&nbsp; &nbsp; &nbsp; )<br/>&nbsp; )<br/>&nbsp; (setq return (getinter a b))<br/>&nbsp; (setvar "osmode" osm)<br/>&nbsp; (if return<br/>&nbsp; &nbsp; return<br/>&nbsp; &nbsp; (print "没有交点")<br/>&nbsp; )<br/>)</p>

kmust_tang 发表于 2008-2-1 17:22:00

<p>感觉楼主的这个程序有点麻烦。。。维护起来也有点麻烦，发个前辈写的（部分修改）</p>

youxian815 发表于 2010-8-27 13:11:00

daiguafan 发表于 2011-5-12 09:39:11

回复 kmust_tang 的帖子

这个确实不错，很好

teykmcqh 发表于 2011-7-13 13:56:03

谢谢分享啦，总是在需要的时候，能找到所需的内容，楼主程序包含较多的元素，很适合学习与借鉴。

xsso 发表于 2013-11-28 21:02:53

谢谢正需要求交点
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查看完整版本: 转，求交点