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# patch_swell

## (Toolbox/patch_swell.m in BrainStorm 2.0 (Alpha))

### Function Synopsis

    newverts = patch_swell(iverts,vconn);

### Help Text

    PATCH_SWELL - enlarge a patch by appending the next set of adjacent vertices
     function newverts = patch_swell(iverts,vconn);
     iverts is an index list of vertex numbers, will be converted to a row vec.
     vconn is the cell array of vertex connectivity
     newverts is the row vec list of NEW vertex numbers adjacent the patch
     Concatenate to swell the patch: patch = [patch(:)' patch_swell(patch,vconn)];

### Cross-Reference Information

This function is called by

    manage_corticalscouts              C:\BrainStorm_2001\Toolbox\manage_corticalscouts.m
    zscore_gui                         C:\BrainStorm_2001\Toolbox\zscore_gui.m

### Listing of function C:\BrainStorm_2001\Toolbox\patch_swell.m

    function newverts = patch_swell(iverts,vconn);
    %PATCH_SWELL - enlarge a patch by appending the next set of adjacent vertices
    % function newverts = patch_swell(iverts,vconn);
    % iverts is an index list of vertex numbers, will be converted to a row vec.
    % vconn is the cell array of vertex connectivity
    % newverts is the row vec list of NEW vertex numbers adjacent the patch
    % Concatenate to swell the patch: patch = [patch(:)' patch_swell(patch,vconn)];

    %<autobegin> ---------------------- 26-May-2004 11:34:07 -----------------------
    % --------- Automatically Generated Comments Block Using AUTO_COMMENTS ---------
    %
    % CATEGORY: Visualization
    %
    % At Check-in: $Author: Mosher $  $Revision: 12 $  $Date: 5/26/04 10:02a $
    %
    % This software is part of BrainStorm Toolbox Version 2.0 (Alpha) 24-May-2004
    %
    % Principal Investigators and Developers:
    % ** Richard M. Leahy, PhD, Signal & Image Processing Institute,
    %    University of Southern California, Los Angeles, CA
    % ** John C. Mosher, PhD, Biophysics Group,
    %    Los Alamos National Laboratory, Los Alamos, NM
    % ** Sylvain Baillet, PhD, Cognitive Neuroscience & Brain Imaging Laboratory,
    %    CNRS, Hopital de la Salpetriere, Paris, France
    %
    % See BrainStorm website at http://neuroimage.usc.edu for further information.
    %
    % Copyright (c) 2004 BrainStorm by the University of Southern California
    % This software distributed  under the terms of the GNU General Public License
    % as published by the Free Software Foundation. Further details on the GPL
    % license can be found at http://www.gnu.org/copyleft/gpl.html .
    %
    % FOR RESEARCH PURPOSES ONLY. THE SOFTWARE IS PROVIDED "AS IS," AND THE
    % UNIVERSITY OF SOUTHERN CALIFORNIA AND ITS COLLABORATORS DO NOT MAKE ANY
    % WARRANTY, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF
    % MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, NOR DO THEY ASSUME ANY
    % LIABILITY OR RESPONSIBILITY FOR THE USE OF THIS SOFTWARE.
    %<autoend> ------------------------ 26-May-2004 11:34:07 -----------------------

    % John C. Mosher, Ph.D.
    % See Copyright file for information
    % $Date: 5/26/04 10:02a $ $Revision: 12 $

    [m,n] = size(iverts);
    if(m~=1),
      iverts = iverts(:)'; % ensure row vector
    end

    % concatenate all vertex connections for all verts
    newverts = [vconn{iverts}];

    % extract unique set of indices, remove existing vertices
    newverts = setdiff(newverts,iverts);

    return

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