| wz82 |
2010-03-18 13:15 |
分享AutoCAD中直接画箭头的方法
众所周知,在天正中可直接绘制箭头,而在AutoCAD中不得。最近我发现一个在命令行直接输入命令就可画出你想要的尺寸的箭头的方法,具体实施如下: 9`|~-b 0oNy 1、首先拷贝下列lisp程序,用ar为名以记事本格式保存,然后改后缀名为.lsp,作为一个lisp程序文件;程序如下: )^[PW&=W|x 5$<Ozkj( (defun ureal (bit kwd msg def / inp) "H3DmsB h%+6y (if def WP ~]pduT %C=?Xhnv (setq msg (strcat " " msg "<" (rtos def) ">: ") 5"^Z7+6 nv}z%.rRUj bit (* 2 (fix (/ bit 2))) [l:}#5\]4 2y#[uSqB ) mj|TWDcj+ WEsX+okj (if (= " " (substr msg (strlen msg) 1)) ]v|n'D-? z z2'h> (setq msg (strcat " " (substr msg 1 (1- (strlen msg))) ": ")) oQ/ Dg+Xp
zPW_ (setq msg (strcat " " msg ": ")) ~F^7L5d}C p{W'[A{J . ) C~q& )Nkf'& ) :7DXLI|L#? `71(wf1q[f (initget bit kwd) Q%.F Mf Cs?[
(setq inp (getreal msg)) u[+/WFH qJ%AbdOI8 (if inp inp def) ||o :A u~\l~v^mj ) 3Ued>8Gv &KPJB"0L (defun upoint (bit kwd msg def bpt / inp) -_+,HyJP j5~nLo2 (if def 2Wp)CI<\D "c*&~GSE4 (setq pts (strcat [a!*m< MVXy)9q (rtos (car def)) =VvQ2Y0h8
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TSC7jO (and (caddr def) (= 0 (getvar "FLATLAND"))) P)rz%,VF+ v/z~ j (strcat "," (rtos (caddr def))) 1ILAUtf) O#3PUuE%d "" Y2>0Y3yM >NjgLJh ) @zi_@B y vo4 .u ) vuO~^N]G ,*j@Zb_r msg (strcat " " msg "<" pts ">: ") E)]RQ~jY? 1rGi"kdf bit (* 2 (fix (/ bit 2))) At)\$GJ Kl]LnN%A{ ) cC7&]2X +f ZDTp/5=?K/ (if (= " " (substr msg (strlen msg) 1)) J*m~fZ^ 5~\GAjf (setq msg (strcat " " (substr msg 1 (1- (strlen msg))) ": ")) p}d+L{"V -$tf` (setq msg (strcat " " msg ": ")) HrH!
'bd n2;Vrs,<1& ) BZ}_ .y^T3?}I ) D,&o=EU z%44@TP (initget bit kwd) TT3\c,cs 5%;=(Oig (setq inp |7@@~|A ;noZmPa (if bpt KxUO=v<u ],xvhfZ"dn (getpoint msg bpt) I.hy"y2& 4M*!'sG\ (getpoint msg) MHF7hk ps} WdJJt2' ) )A=&3Ui)ab DA9f\q ) |rwx;+ 1}"Prx- (if inp inp def) v/~Lf i ]=?.LMjnH ) k5o{mWI b MoMxKmI (setq cm(getvar "cmdecho")) hL}AgY@ #kRt\Fzq (setvar "cmdecho" 0) uE-|]QQo h$$2(!G4 (defun C:AR ( / #dwgsc w v pt1 pt2 pt3 ) j+NsNIJq + 3c (CTz (if(= arscl nil)(setq arscl 0.1875)) yLEAbd%+ w'zSV1 (setq #dwgsc(getvar "DIMSCALE") rYPj3!# pz,iQUs_o W(getvar "PLINEWID") G}#p4\/ 2"8qtG`Et V(getvar "OSMODE") -E>LB\[t) @ *n oma L(getvar "CLAYER")) UthM?g^
<P0&!yN (setq arscl(ureal 7 "" "请输入箭头长度" arscl)) fO,m_
OR:) 3%YDsd vQx (setvar "OSMODE" 1) Q1[EiM3 (\M+E
tU<9 (setq pt1 (upoint 1 "" "指定箭头顶点" nil nil)) buA/G-<e iPdR;O' (setvar "OSMODE" 512) mG.H=iw 3B?7h/f (setq PT(entsel " 选择直线上要画箭头一端的任意一点")) m t}3/d qTI_'q (setq PT2(cadr PT))
,)Z1&J? -I.BQ (setq ED(entget(car PT))) W
#V`|JA aqKrf(Rv (setq PT3 (polar PT1 (angle PT1 PT2) (* #dwgsc arscl))) $<F9;Z wH]Y1 m (command "PLINE" pt1 "w" "0" (* #dwgsc (/ arscl 3)) pt3 "") (gjCm0#_% LjPpnjU (setvar "OSMODE" V) w<Ot0& | |