%getNXStart     Return the number of the first column in the map
%
%   nXStart = getNXStart(mRCImage)
%
%   nXStart     The value of X in the first column of the map.
%
%   mRCImage    The MRCImage object.
%
%   Bugs: none known
%
% This file is part of PEET (Particle Estimation for Electron Tomography).
% Copyright 2000-2012 The Regents of the University of Colorado & BLD3EMC:
%           The Boulder Laboratory For 3D Electron Microscopy of Cells.
% See PEETCopyright.txt for more details.

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%  $Author: John Heumann $
%
%  $Date: 2012/01/12 17:22:51 $
%
%  $Revision: 04b6cb6df697 $
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function nXStart = getNXStart(mRCImage)
nXStart = mRCImage.header.nXStart;
