%getCellX       Return the cell X dimension in angstroms
%
%   dX = getCellX(mRCImage)
%
%   dx          The cell X dimension in angstroms.
%
%   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.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%  $Author: John Heumann $
%
%  $Date: 2012/01/12 17:22:51 $
%
%  $Revision: 04b6cb6df697 $
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

function dX = getCellX(mRCImage)
dX = mRCImage.header.cellDimensionX;
