www.pudn.com > logtools.rar > topsin.m, change:2004-08-13,size:2606b

function [linet1,linet2]=topsin(lasheader) % % [linet1,linet2]=topsin(lasheader) % % linet1 is the line in the lasheader with the first top % linet2 is the line in the lasheader with the last top % % NOTE: It is illegal for you to use this software for a purpose other % than non-profit education or research UNLESS you are employed by a CREWES % Project sponsor. By using this software, you are agreeing to the terms % detailed in this software's Matlab source file.   % BEGIN TERMS OF USE LICENSE % % This SOFTWARE is maintained by the CREWES Project at the Department % of Geology and Geophysics of the University of Calgary, Calgary, % Alberta, Canada.  The copyright and ownership is jointly held by  % its author (identified above) and the CREWES Project.  The CREWES  % project may be contacted via email at:  crewesinfo@crewes.org %  % The term 'SOFTWARE' refers to the Matlab source code, translations to % any other computer language, or object code % % Terms of use of this SOFTWARE % % 1) Use of this SOFTWARE by any for-profit commercial organization is %    expressly forbidden unless said organization is a CREWES Project %    Sponsor. % % 2) A CREWES Project sponsor may use this SOFTWARE under the terms of the  %    CREWES Project Sponsorship agreement. % % 3) A student or employee of a non-profit educational institution may  %    use this SOFTWARE subject to the following terms and conditions: %    - this SOFTWARE is for teaching or research purposes only. %    - this SOFTWARE may be distributed to other students or researchers  %      provided that these license terms are included. %    - reselling the SOFTWARE, or including it or any portion of it, in any %      software that will be resold is expressly forbidden. %    - transfering the SOFTWARE in any form to a commercial firm or any  %      other for-profit organization is expressly forbidden. % % END TERMS OF USE LICENSE    [nlines,nchar]=size(lasheader); % % search for TOPS  %   linet1=-1;   for line=1:nlines 	  str = lasheader(line,:); 	  if(strcmp(str(2:5),'TOPS')) 	    linet1=line+1; 	  end   end   if(linet1 ~= -1)   %found some TOPS     line=linet1-1;     str='yyy';     while ( (strcmp(str(1),'~') == 0) & (strcmp(str(1),'#') == 0) )      	  line=line+1; 	  str = lasheader(line,:);     end     linet2=line-1;    %last top   else     %no TOPS found, so return location of ~Curve Info 	   % for both l1 and l2     for line=1:nlines 	  str = lasheader(line,:); 	  if(strcmp(str(1:9),'~Curve In')) 	    linet1=line; 	    linet2=line-1; 	  end     end   end   if(linet1 == -1)     linet1=1;     linet2=0;   end