baolanjun123 发表于 2007-1-15 13:02:00

[求助]三维正四角锥网格lisp程序

<p>三维正四角锥网格是三维网格的一种，&nbsp; 我在做这方面的毕业设计，前段时间看到一下lisp程序，感觉不太理想，有没有高手愿意帮忙？</p><p>要求是这样的：把一个CAD里面（全部都是点的）坐标输出到指定的文件里面，格式如下：</p><p>序号，X坐标，Y坐标，Z坐标，一个常数1//2/3</p><p>1、序号还有如下要求：看附图；</p><p>2、常数有如下要求：点坐标在图层1的这个常数就是1</p><p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 点坐标在图层2的这个常数就是2</p><p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 点坐标在图层3的这个常数就是3</p>

baolanjun123 发表于 2007-1-15 13:05:00

本帖最后由 作者 于 2007-1-15 18:57:12 编辑

节点编号按这个顺序

baolanjun123 发表于 2007-1-15 13:15:00

<p><br/>;;;拾取Cad点坐标生成数据文件，程序是在d盘根目录下生成一个node.txt文件<br/>;;;'write by Hejian 2002 free to copy</p><p><br/>(defun c:nd (/ kw fil cont esel oldos num1 pt pttext s s1 va pt1 pt2 l n fid)</p><p>&nbsp; (initget "O N")<br/>&nbsp; (setq kw (getkword "\n[建立新文件(N)/打开文件(O)]:"))<br/>&nbsp; (if kw<br/>&nbsp;&nbsp;&nbsp; (progn<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (setq fil&nbsp;(strcat&nbsp;"d://"<br/>&nbsp;&nbsp;&nbsp;(getstring "[输入文件名(*.dat)]:")<br/>&nbsp;&nbsp;&nbsp;".dat"<br/>&nbsp;&nbsp;)<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (setq input 0)</p><p>&nbsp;&nbsp;&nbsp; )<br/>&nbsp;&nbsp;&nbsp; (progn<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (setq fil (getfiled "\nSelect a Dat File" "D:/" "dat" 8))<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (setq fid (open fil "r"))<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (setq lin (read-line fid))<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (while lin<br/>&nbsp;(setq end lin)<br/>&nbsp;(setq lin (read-line fid))<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (close fid)<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (setq l (vl-string-position (ascii ",") end))<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (setq n (atoi (substr end 1 l)))<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (setq input n)</p><p><br/>&nbsp;&nbsp;&nbsp; )<br/>&nbsp; )<br/>&nbsp; (if (= nil fil)<br/>&nbsp;&nbsp;&nbsp; (setq fil "d://node.dat")<br/>&nbsp; )<br/>&nbsp; (graphscr)<br/>&nbsp; (setq pt (getpoint "\nplease pick a point:"))<br/>&nbsp; (while pt<br/>&nbsp;&nbsp;&nbsp; (setvar "cmdecho" 0)<br/>&nbsp;&nbsp;&nbsp; (setq<br/>&nbsp;&nbsp; input&nbsp;(1+ input)<br/>&nbsp;&nbsp; s2&nbsp;(strcat "\nnode number&lt; " (itoa input))<br/>&nbsp;&nbsp; s2&nbsp;(strcat s2 "&gt;")<br/>&nbsp;&nbsp;&nbsp; )<br/>&nbsp;&nbsp;&nbsp; (initget 6)<br/>&nbsp;&nbsp;&nbsp; (setq num1 (getint s2))<br/>&nbsp;&nbsp;&nbsp; (if&nbsp;(/= num1 nil)<br/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (setq input num1)<br/>&nbsp;&nbsp;&nbsp; )<br/>&nbsp;&nbsp;&nbsp; (setq pttext (list (+ (car pt) 0.05) (cadr pt) (caddr pt))<br/>&nbsp;&nbsp; s&nbsp; (itoa input)<br/>&nbsp;&nbsp;&nbsp; )</p><p>&nbsp;&nbsp;&nbsp; (setq s1 s)<br/>&nbsp;&nbsp;&nbsp; (setq va (cadr pt))<br/>;;;cadr得到y坐标<br/>&nbsp;&nbsp;&nbsp; (setq s1 (strcat s1 ","))<br/>&nbsp;&nbsp;&nbsp; (setq s1 (strcat s1 (rtos va 2 3)))<br/>&nbsp;&nbsp;&nbsp; (setq va (car pt))<br/>;;;car得到x坐标<br/>&nbsp;&nbsp;&nbsp; (setq s1 (strcat s1 ","))<br/>&nbsp;&nbsp;&nbsp; (setq s1 (strcat s1 (rtos va 2 3)))</p><p>&nbsp;&nbsp;&nbsp; (setq va (caddr pt))<br/>&nbsp;&nbsp;&nbsp; (setq s1 (strcat s1 ","))<br/>&nbsp;&nbsp;&nbsp; (setq s1 (strcat s1 (rtos va 2 3)))<br/>&nbsp;&nbsp;&nbsp; (command "layer" "m" "序号层" "s" "序号层" "")<br/>&nbsp;&nbsp;&nbsp; (command "text" (trans pttext 0 1) "" "" s)<br/>&nbsp;&nbsp;&nbsp; (command "ucs" "")<br/>&nbsp;&nbsp;&nbsp; (setq fid (open fil "a"))<br/>&nbsp;&nbsp;&nbsp; (write-line s1 fid)<br/>&nbsp;&nbsp;&nbsp; (close fid)<br/>&nbsp;&nbsp;&nbsp; (setq pt (getpoint "\n点取下一点，回车退出:"))<br/>&nbsp; )<br/>&nbsp; (princ)</p><p>)<br/>这个程序在编号这里比较开放的,但网格有很多,这样就不方便了,所以要加上一个默认编号的方式.</p><p>由于我贴图贴不来,附件没有发上来</p>

baolanjun123 发表于 2007-1-15 13:19:00

本帖最后由 作者 于 2007-1-15 19:01:04 编辑 <br /><br /> <p>编号是这样的,从0,0,0开始标,如下</p><p>&nbsp;&nbsp; 7&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 9&nbsp;</p><p>6&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8&nbsp;&nbsp;&nbsp;&nbsp; 10</p><p>&nbsp;&nbsp; 2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4</p><p>1&nbsp;&nbsp;&nbsp;&nbsp; 3&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;5</p><p>1,0.000,0.000,0.000<br/>2,1.000,1.000,-2.000<br/>3,0.000,2.000,0.000<br/>4,1.000,3.000,-2.000<br/>5,0.000,4.000,0.000<br/>6,1.000,5.000,-2.000<br/>7,0.000,6.000,0.000<br/>8,1.000,7.000,-2.000<br/>9,0.000,8.000,0.000<br/>10,1.000,9.000,-2.000<br/></p>
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