linspacepixels

 function f = linspacepixels(x1,x2,n)

 <x1>,<x2> are numbers
 <n> is the number of desired points

 return a vector of equally spaced points that can 
 be treated as centers of pixels whose total field-of-view
 would be bounded by <x1> and <x2>.

 example:
 isequal(linspacepixels(0,1,2),[.25 .75])

0001 function f = linspacepixels(x1,x2,n)
0002 
0003 % function f = linspacepixels(x1,x2,n)
0004 %
0005 % <x1>,<x2> are numbers
0006 % <n> is the number of desired points
0007 %
0008 % return a vector of equally spaced points that can
0009 % be treated as centers of pixels whose total field-of-view
0010 % would be bounded by <x1> and <x2>.
0011 %
0012 % example:
0013 % isequal(linspacepixels(0,1,2),[.25 .75])
0014 
0015 dif = ((x2-x1)/n)/2;  % half the difference between successive points
0016 f = linspace(x1+dif,x2-dif,n);