www.pudn.com > geometric.rar > between.m, change:2004-08-13,size:3235b


function indicies = between(x1,x2,testpts,flag) % % indicies = between(x1,x2,testpts,flag) % indicies = between(x1,x2,testpts) % % returns the indicies of those points in the array testpts which lie between % the points x1 and x2. If no testpts are found between x1 and x2 then a % single scalar 0 (false) is returned. Flag determines the exact nature of % the inclusion of the endpoints: %    if flag == 0, then not endpoints are included %    if flag == 1, then x1 is included. i.e. if a test point is precisely %                  equal to x1,	it will be considered "between" %    if flag == 2, then both x1 and x2 are included %  ******** flag defaults to 0 **** % % Function works regardless of whether x1 < x2 or x2 < x1. % % 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  if nargin < 4, flag =0; end  	if flag == 0 		if( x1 < x2) 			indicies = find( (testpts > x1)&(testpts < x2) ); 			if(isempty(indicies))indicies=0;end 			return; 		else 			indicies = find( (testpts > x2)&(testpts < x1) ); 			if(isempty(indicies))indicies=0;end 			return; 		end 	end 	if flag == 1 		if( x1 < x2) 			indicies = find( (testpts >= x1)&(testpts < x2) ); 			if(isempty(indicies))indicies=0;end 			return; 		else 			indicies = find( (testpts > x2)&(testpts <= x1) ); 			if(isempty(indicies))indicies=0;end 			return; 		end 	end 	if flag == 2 		if( x1 < x2) 			indicies = find( (testpts >= x1)&(testpts <= x2) ); 			if(isempty(indicies))indicies=0;end 			return; 		else 			indicies = find( (testpts >= x2)&(testpts <= x1) ); 			if(isempty(indicies))indicies=0;end 			return; 		end 	end