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pop_headplot.m
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pop_headplot.m
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% POP_HEADPLOT - plot one or more spherically-splined EEG field maps
% using a semi-realistic 3-D head model. Requires a
% spline file, which is created first if not found.
% This may take some time, but does not need to be
% done again for this channel locations montage. A wait
% bar will pop up to indicate how much time remains.
% Usage:
% To open input GUI:
% >> EEGOUT = pop_headplot( EEG, typeplot)
% To run as a script without further GUI input:
% >> EEGOUT = pop_headplot( EEG, typeplot, ...
% latencies/components, title, rowscols, 'key', 'val' ...);
% Required Inputs:
% EEG - EEG dataset structure
% typeplot - 1=channel, 0=component {Default: 1}
%
% Required Inputs to bypass input GUI
% latencies/components - If channels, array of epoch mean latencies (in ms),
% Else, for components, array of component indices to plot.
%
% Optional inputs:
% title - Plot title
% rowscols - Vector of the form [m,n] where m is total vertical tiles and n
% horizontal tiles per page. If the number of maps exceeds m*n,
% multiple figures will be produced {def|0 -> 1 near-square page}
%
% Optional 'Key' 'Value' Paired Inputs
% 'setup' - ['name_of_file_to_save.spl'] Make the headplot spline file
% 'load' - ['name_of_file_to_load.spl'] Load the headplot spline file
% 'colorbar' - ['on' or 'off'] Switch to turn colorbar on or off. {Default: 'on'}
% others... - All other key-val calls are passed directly to headplot.
% See >> help headplot
%
% Output:
% EEGOUT - EEG dataset, possibly with a new or modified splinefile.
%
% Note:
% A new figure is created only when the pop_up window is called or when
% several channels/components are plotted. Therefore you may call this
% command to draw single 3-D topographic maps in an existing figure.
%
% Headplot spline file is a matlab .mat file with the extension .spl.
%
% Author: Arnaud Delorme, CNL / Salk Institute, 20 March 2002
%
% See also: HEADPLOT, EEGPLOT, TRADITIONAL
% Copyright (C) 20 March 2002 Arnaud Delorme, Salk Institute, arno@salk.edu
%
% This file is part of EEGLAB, see http://www.eeglab.org
% for the documentation and details.
%
% Redistribution and use in source and binary forms, with or without
% modification, are permitted provided that the following conditions are met:
%
% 1. Redistributions of source code must retain the above copyright notice,
% this list of conditions and the following disclaimer.
%
% 2. Redistributions in binary form must reproduce the above copyright notice,
% this list of conditions and the following disclaimer in the documentation
% and/or other materials provided with the distribution.
%
% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
% AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
% IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
% ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
% LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
% CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
% SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
% INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
% CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
% ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
% THE POSSIBILITY OF SUCH DAMAGE.
function [EEG, com] = pop_headplot( EEG, typeplot, arg2, topotitle, rowcols, varargin);
com = '';
if nargin < 1
help pop_headplot;
return;
end
if isempty(EEG.chanlocs)
error('Pop_headplot: this dataset does not contain channel locations. Use menu item: Edit > Dataset info');
end
if nargin < 3 % Open GUI input window
% remove old spline file
% ----------------------
if isfield(EEG, 'splinefile')
if ~isempty(EEG.splinefile) && exist(EEG.splinefile, 'file')
splfile = dir(EEG.splinefile);
byteperelec = splfile.bytes/EEG.nbchan;
if byteperelec/EEG.nbchan < 625, % old head plot file
EEG.splinefile = [];
disp('Warning: Wrong montage or old-version spline file version detected and removed; new spline file required');
end
end
end
% show the file be recomputed
% ---------------------------
compute_file = 0;
if typeplot == 1 % ********** data plot
fieldname = 'splinefile';
if isempty(EEG.splinefile) && exist(char(EEG.splinefile), 'file')
if length(EEG.icachansind) == EEG.nbchan && ~isempty(EEG.icasplinefile)
EEG.splinefile = EEG.icasplinefile;
else
compute_file = 1;
end
else
compute_file = 1;
end
else % ************* Component plot
fieldname = 'icasplinefile';
if isempty(EEG.icasplinefile) && exist(char(EEG.icasplinefile), 'file')
if length(EEG.icachansind) == EEG.nbchan && ~isempty(EEG.splinefile)
EEG.icasplinefile = EEG.splinefile;
else
compute_file = 1;
end
else
compute_file = 1;
end
end
if compute_file
warndlg2( strvcat('headplot() must generate a spline file the first', ...
'time it is called or after changes in the channel location file.', ...
'You must also co-register your channel locations with the', ...
'head template. Using a standard 10-20 system montage, default', ...
'parameters should allow creating the correct spline file.'), 'Headplot() warning');
else
pop_options = {};
end
% graphic interface
% -----------------
template(1).keywords = { 'standard-10-5-cap385' };
template(1).transform = [ -0.355789 -6.33688 12.3705 0.0533239 0.0187461 -1.55264 1.06367 0.987721 0.932694 ];
%template(1).transform = [ -0.31937 -5.96928 13.1812 0.0509311 0.0172127 -1.55007 1.08221 1.00037 0.923518 ];
template(2).keywords = { 'standard_1005' };
template(2).transform = [ -1.13598 7.75226 11.4527 -0.0271167 0.0155306 -1.54547 0.912338 0.931611 0.806978 ];
% -0.732155 7.58141 11.8939 -0.0249659 0.0148571 0.0227427 0.932423 0.918943 0.793166 ];
template(3).keywords = { 'gsn' 'sfp' };
%template(3).transform = [ 0 -9 -9 -0.12 0 -1.6 9.7 10.7 11.5 ];
template(3).transform = [ 0.664455 -3.39403 -14.2521 -0.00241453 0.015519 -1.55584 11 10.1455 12];
template(4).keywords = { 'egi' 'elp' };
template(4).transform = [ 0.0773 -5.3235 -14.72 -0.1187 -0.0023 -1.5940 92.4 92.5 110.9 ];
transform = [];
if isfield(EEG.chaninfo, 'filename')
[tmp transform] = lookupchantemplate(lower(EEG.chaninfo.filename), template);
end
if typeplot
txt = sprintf('Making headplots for these latencies (from %d to %d ms):', round(EEG.xmin*1000), round(EEG.xmax*1000));
else
%txt = ['Component numbers (negate index to invert component polarity):' 10 '(NaN -> empty subplot)(Ex: -1 NaN 3)'];
txt = ['Component numbers to plot (negative numbers invert comp. polarities):' ];
end
if compute_file
enableload = 'off';
enablecomp = 'on';
else
enableload = 'on';
enablecomp = 'off';
end
cb_load = [ 'set(findobj(gcbf, ''tag'', ''load''), ''enable'', ''on'');' ...
'set(findobj(gcbf, ''tag'', ''comp''), ''enable'', ''off'');' ...
'set(findobj(gcbf, ''tag'', ''compcb''), ''value'', 0);' ];
cb_comp = [ 'set(findobj(gcbf, ''tag'', ''load''), ''enable'', ''off'');' ...
'set(findobj(gcbf, ''tag'', ''comp''), ''enable'', ''on'');' ...
'set(findobj(gcbf, ''tag'', ''loadcb''), ''value'', 0);' ];
cb_browseload = [ '[filename, filepath] = uigetfile(''*.spl'', ''Select a spline file'');' ...
'if filename ~=0,' ...
' set(findobj( gcbf, ''userdata'', ''load''), ''string'', fullfile(filepath,filename));' ...
'end;' ...
'clear filename filepath tagtest;' ];
cb_browsecomp = [ '[filename, filepath] = uiputfile(''*.spl'', ''Select a spline file'');' ...
'if filename ~=0,' ...
' set(findobj( gcbf, ''userdata'', ''coregfile''), ''string'', fullfile(filepath,filename));' ...
'end;' ...
'clear filename filepath tagtest;' ];
cb_browsemesh = [ '[filename, filepath] = uigetfile(''*.spl'', ''Select a spline file'');' ...
'if filename ~=0,' ...
' set(findobj( gcbf, ''userdata'', ''meshfile''), ''style'', ''edit'', ''callback'', '''', ''string'', fullfile(filepath,filename));' ...
'end;' ...
'clear filename filepath tagtest;' ];
cb_browsemeshchan = [ '[filename, filepath] = uigetfile(''*.spl'', ''Select a spline file'');' ...
'if filename ~=0,' ...
' set(findobj( gcbf, ''userdata'', ''meshchanfile''), ''style'', ''edit'', ''callback'', '''', ''string'', fullfile(filepath,filename));' ...
'end;' ...
'clear filename filepath tagtest;' ];
cb_selectcoreg = [ 'tmpmodel = get( findobj(gcbf, ''userdata'', ''meshfile'') , ''string''); tmpmodel = tmpmodel{get( findobj(gcbf, ''userdata'', ''meshfile'') , ''value'')};' ...
'tmploc2 = get( findobj(gcbf, ''userdata'', ''meshchanfile''), ''string''); tmploc2 = tmploc2{ get( findobj(gcbf, ''userdata'', ''meshchanfile'') , ''value'')};' ...
'tmploc1 = get( gcbo, ''userdata'');' ...
'tmptransf = get( findobj(gcbf, ''userdata'', ''coregtext''), ''string'');' ...
'[tmp tmptransf] = coregister(tmploc1{1}, tmploc2, ''mesh'', tmpmodel, ''helpmsg'', ''on'',' ...
' ''chaninfo1'', tmploc1{2}, ''transform'', str2num(tmptransf));' ...
'if ~isempty(tmptransf), set( findobj(gcbf, ''userdata'', ''coregtext''), ''string'', num2str(tmptransf)); end;' ...
'clear tmpmodel tmploc2 tmploc1 tmp tmptransf;' ];
cb_helpload = [ 'warndlg2(strvcat(''If you have already generated a spline file for this channel location'',' ...
'''structure, you may enter it here. Click on the "Use existing spline file or'',' ...
'''structure" to activate the edit box first.''), ''Load file for headplot()'');' ];
cb_helpcoreg = [ 'warndlg2(strvcat(''Your channel locations must be co-registered with a 3-D head mesh to be plotted.'',' ...
'''If you are using one of the template location files, the "Talairach transformation matrix"'',' ...
'''field will be filled automatically (just enter an output file name and press "OK").'',' ...
'''Otherwise press the "Manual coreg." button to perform co-registration.''), ''Load file for headplot()'');' ];
cb_selectmesh = [ 'set(findobj(gcbf, ''userdata'', ''meshchanfile''), ''value'', get(gcbo, ''value''));' ...
'set(findobj(gcbf, ''userdata'', ''meshfile'') , ''value'', get(gcbo, ''value''));' ...
'tmpdat = get(gcbf, ''userdata'');' ...
'set(findobj(gcbf, ''userdata'', ''coregtext''), ''string'', num2str(tmpdat{get(gcbo, ''value'')}));' ];
defaultmat = { 'mheadnew.mat' 'colin27headmesh.mat' };
defaultloc = { 'mheadnew.xyz' 'colin27headmesh.xyz' };
defaulttransform = { transform [0 -15 -15 0.05 0 -1.57 100 88 110] };
userdatatmp = { EEG.chanlocs EEG.chaninfo };
if isdeployed
basefolder = [ getenv('HOME') getenv('USERPROFILE') ];
elseif ~isempty(EEG.filepath)
basefolder = EEG.filepath;
else
basefolder = pwd;
end
if isempty(EEG.filename)
splfile = fullfile(basefolder, 'tmp.spl');
else
splfile = [fullfile(basefolder, EEG.filename(1:length(EEG.filename)-3)),'spl'];
end
txt = { {'style', 'text', 'string', 'Co-register channel locations with head mesh and compute a mesh spline file (each scalp montage needs a headplot() spline file)', 'fontweight', 'bold'}, ...
{'style', 'checkbox', 'string', 'Use the following spline file or structure', 'userdata', 'loadfile', 'tag', 'loadcb', 'callback', cb_load, 'value', ~compute_file} ...
{ 'style' 'edit' 'string' char(fastif(typeplot, EEG.splinefile, EEG.icasplinefile)) 'userdata' 'load' 'tag' 'load' 'enable' enableload } ...
{ 'style' 'pushbutton' 'string' 'Browse' 'callback' cb_browseload 'tag' 'load' 'enable' enableload } ...
{ 'style' 'pushbutton' 'string' 'Help' 'callback' cb_helpload } ...
{ 'style' 'checkbox' 'string' 'Or (re)compute a new spline file named:' 'tag' 'compcb' 'callback' cb_comp 'value' compute_file } ...
{ 'style' 'edit' 'string' splfile 'userdata' 'coregfile' 'tag' 'comp' 'enable' enablecomp } ...
{ 'style' 'pushbutton' 'string' 'Browse' 'callback' cb_browsecomp 'tag' 'comp' 'enable' enablecomp } ...
{ 'style' 'pushbutton' 'string' 'Help' 'callback' cb_helpcoreg } ...
{ 'style' 'text' 'string' ' 3-D head mesh file' 'tag' 'comp' 'enable' enablecomp } ...
{ 'style' 'popupmenu' 'string' defaultmat 'userdata' 'meshfile' 'callback' cb_selectmesh 'tag' 'comp' 'enable' enablecomp } ...
{ 'style' 'pushbutton' 'string' 'Browse other' 'callback' cb_browsemesh 'tag' 'comp' 'enable' enablecomp } ...
{ } ...
{ 'style' 'text' 'string' ' Mesh associated channel file' 'tag' 'comp' 'enable' enablecomp } ...
{ 'style' 'popupmenu' 'string' defaultloc 'userdata' 'meshchanfile' 'callback' cb_selectmesh 'tag' 'comp' 'enable' enablecomp } ...
{ 'style' 'pushbutton' 'string' 'Browse other' 'callback' cb_browsemeshchan 'tag' 'comp' 'enable' enablecomp } ...
{ } ...
{ 'style' 'text' 'string' ' Talairach-model transformation matrix' 'tag' 'comp' 'enable' enablecomp } ...
{ 'style' 'edit' 'string' num2str(transform) 'userdata' 'coregtext' 'tag' 'comp' 'enable' enablecomp } ...
{ 'style' 'pushbutton' 'string' 'Manual coreg.' 'callback' cb_selectcoreg 'userdata' userdatatmp 'tag' 'comp' 'enable' enablecomp } ...
{ } ...
{ } ...
{ 'style' 'text' 'string' 'Plot interpolated activity onto 3-D head' 'fontweight' 'bold' } ...
{ 'style' 'text' 'string' txt } ...
{ 'style' 'edit' 'string' fastif( typeplot, '0', ['1:' int2str(size(EEG.icaweights,1))] ) } { } ...
{ 'style' 'text' 'string' 'Plot title:' } ...
{ 'style' 'edit' 'string' [ fastif( typeplot, 'ERP scalp maps of dataset:', 'Components of dataset: ') ...
fastif(~isempty(EEG.setname), EEG.setname, '') ] } { } ...
{ 'style' 'text' 'string' 'Plot geometry (rows,columns): (Default [] = near square)' } ...
{ 'style' 'edit' 'string' '' } { } ...
{ 'style' 'text' 'string' 'Other headplot options (See >> help headplot):' } ...
{ 'style' 'edit' 'string' '' } { } };
% plot GUI and protect parameters
% -------------------------------
geom = { [1] [1.3 1.6 0.5 0.5 ] [1.3 1.6 0.5 0.5 ] [1.3 1.6 0.6 0.4 ] [1.3 1.6 0.6 0.4 ] [1.3 1.6 0.6 0.4 ] ...
[1] [1] [1.5 1 0.5] [1.5 1 0.5] [1.5 1 0.5] [1.5 1 0.5] };
optiongui = { 'uilist', txt, 'title', fastif( typeplot, 'ERP head plot(s) -- pop_headplot()', ...
'Component head plot(s) -- pop_headplot()'), 'geometry', geom 'userdata' defaulttransform };
[result, userdat2, strhalt, outstruct] = inputgui( 'mode', 'noclose', optiongui{:});
if isempty(result)
return;
end
if ~isempty(get(0, 'currentfigure'))
currentfig = gcf;
else
return;
end
while test_wrong_parameters(currentfig)
[result, userdat2, strhalt, outstruct] = inputgui( 'mode', currentfig, optiongui{:});
if isempty(result), return; end
end
close(currentfig);
% decode setup parameters
% -----------------------
options = {};
if result{1}
options = { options{:} 'load' result{2} };
else
if ~ischar(result{5})
result{5} = defaultmat{result{5}};
end
if isempty(result{7})
setupopt = { result{4} 'meshfile' result{5} }; % no coreg
options = [ options { 'meshfile' result{5} }];
else
setupopt = { result{4} 'meshfile' result{5} 'transform' str2num(result{7}) };
options = [ options { 'meshfile' result{5} 'transform' str2num(result{7}) }];
fprintf('Transformation matrix: %s\n', result{7});
end
options = { options{:} 'setup' setupopt };
if ~strcmpi(result{5}, 'mheadnew.mat')
EEG.headplotmeshfile = result{5};
else
EEG.headplotmeshfile = '';
end
end
% decode other parameters
% -----------------------
arg2 = eval( [ '[' result{8} ']' ] );
if length(arg2) > EEG.nbchan
tmpbut = questdlg2(['This will draw ' int2str(length(arg2)) ' plots. Continue ?'], '', 'Cancel', 'Yes', 'Yes');
if strcmp(tmpbut, 'Cancel'), return; end
end
if length(arg2) == 0, error('please choose a latency(s) to plot'); end
topotitle = result{9};
rowcols = eval( [ '[ ' result{10} ' ]' ] );
tmpopts = eval( [ '{ ' result{11} ' }' ] );
if ~isempty(tmpopts)
options = { options{:} tmpopts{:} };
end
if size(arg2(:),1) == 1, figure; end
else % Pass along parameters and bypass GUI input
options = varargin;
end
% Check if pop_headplot input 'colorbar' was called, and don't send it to headplot
loc = strmatch('colorbar', options(1:2:end), 'exact');
loc = loc*2-1;
if ~isempty(loc)
colorbar_switch = strcmp('on',options{ loc+1 });
options(loc:loc+1) = [];
else
colorbar_switch = 1;
end
% read or generate file if necessary
% ----------------------------------
pop_options = options;
loc = strmatch('load', options(1:2:end)); loc = loc*2-1;
if ~isempty(loc)
if typeplot
EEG.splinefile = options{ loc+1 };
else
EEG.icasplinefile = options{ loc+1 };
end
options(loc:loc+1) = [];
end
loc = strmatch('maplimits', options(1:2:end));
maplimits = [];
if ~isempty(loc)
maplimits = options{2*loc};
end
loc = strmatch('setup', options(1:2:end)); loc = loc*2-1;
if ~isempty(loc)
if typeplot
headplot('setup', EEG.chanlocs, options{loc+1}{1}, 'chaninfo', EEG.chaninfo, options{ loc+1 }{2:end});
EEG.splinefile = options{loc+1}{1};
else
headplot('setup', EEG.chanlocs, options{loc+1}{1}, 'chaninfo', EEG.chaninfo, 'ica', 'on', options{ loc+1 }{2:end});
EEG.icasplinefile = options{loc+1}{1};
end
options(loc:loc+1) = [];
compute_file = 1;
else
compute_file = 0;
end
% search for existing file if necessary
% -------------------------------------
if typeplot == 1 % ********** data plot
fieldname = 'splinefile';
if isempty(EEG.splinefile)
if length(EEG.icachansind) == EEG.nbchan && ~isempty(EEG.icasplinefile)
EEG.splinefile = EEG.icasplinefile;
end
end
else % ************* Component plot
fieldname = 'icasplinefile';
if isempty(EEG.icasplinefile)
if length(EEG.icachansind) == EEG.nbchan && ~isempty(EEG.splinefile)
EEG.icasplinefile = EEG.splinefile;
end
end
end
% headplot mesh file
% ------------------
if isfield(EEG, 'headplotmeshfile')
if ~isempty(EEG.headplotmeshfile)
options = { options{:} 'meshfile' EEG.headplotmeshfile };
end
end
% check parameters
% ----------------
if ~exist('topotitle')
topotitle = '';
end
if typeplot
if isempty(EEG.splinefile)
error('Pop_headplot: cannot find spline file, aborting...');
end
else
if isempty(EEG.icasplinefile)
error('Pop_headplot: cannot find spline file, aborting...');
end
end
SIZEBOX = 150;
nbgraph = size(arg2(:),1);
if ~exist('rowcols') || isempty(rowcols) || rowcols(1) == 0
rowcols(2) = ceil(sqrt(nbgraph));
rowcols(1) = ceil(nbgraph/rowcols(2));
end
fprintf('Plotting...\n');
% determine the scale for plot of different times (same scales)
% -------------------------------------------------------------
if isempty(maplimits)
if typeplot
SIGTMP = reshape(EEG.data, EEG.nbchan, EEG.pnts, EEG.trials);
pos = round( (arg2/1000-EEG.xmin)/(EEG.xmax-EEG.xmin) * (EEG.pnts-1))+1;
indexnan = find(isnan(pos));
nanpos = find(isnan(pos));
pos(nanpos) = 1;
SIGTMPAVG = mean(SIGTMP(:,pos,:),3);
SIGTMPAVG(:, nanpos) = NaN;
maxlim = max(SIGTMPAVG(:));
minlim = min(SIGTMPAVG(:));
maplimits = max(maxlim, -minlim);
maplimits = maplimits*1.1;
maplimits = [ -maplimits maplimits ];
else
maplimits = [-1 1];
end
else
SIGTMP = reshape(EEG.data, EEG.nbchan, EEG.pnts, EEG.trials);
SIGTMPAVG = mean(SIGTMP,3);
end
% plot the graphs
% ---------------
counter = 1;
disp('IMPORTANT NOTICE: electrodes are projected to the head surface so their location');
disp(' might slightly differ from the one they had during coregistration ');
for index = 1:size(arg2(:),1)
if nbgraph > 1
if mod(index, rowcols(1)*rowcols(2)) == 1
if index> 1, a = textsc(0.5, 0.05, topotitle); set(a, 'fontweight', 'bold'); end
figure;
pos = get(gcf,'Position');
posx = max(0, pos(1)+(pos(3)-SIZEBOX*rowcols(2))/2);
posy = pos(2)+pos(4)-SIZEBOX*rowcols(1);
set(gcf,'Position', [posx posy SIZEBOX*rowcols(2) SIZEBOX*rowcols(1)]);
try, icadefs; set(gcf, 'color', BACKCOLOR); catch, end
end
subplot( rowcols(1), rowcols(2), mod(index-1, rowcols(1)*rowcols(2))+1);
end
if ~isnan(arg2(index))
if typeplot
headplot( SIGTMPAVG(:,index), EEG.splinefile, 'maplimits', maplimits, options{:});
if nbgraph == 1, title( topotitle );
else title([int2str(arg2(index)) ' ms']);
end
else
if arg2(index) < 0
headplot( -EEG.icawinv(:, -arg2(index)), EEG.icasplinefile, options{:});
else
headplot( EEG.icawinv(:, arg2(index)), EEG.icasplinefile, options{:});
end
if nbgraph == 1, title( topotitle );
else title(['' int2str(arg2(index))]);
end
end
drawnow;
axis equal;
try, rotate3d off; catch, end
else
axis off
end
end
% Draw colorbar
if colorbar_switch
if nbgraph == 1
ColorbarHandle = cbar(0,0,[maplimits(1) maplimits(2)]);
pos = get(ColorbarHandle,'position'); % move left & shrink to match head size
set(ColorbarHandle,'position',[pos(1)-.05 pos(2)+0.13 pos(3)*0.7 pos(4)-0.26]);
else
cbar('vert',0,[maplimits(1) maplimits(2)]);
end
if ~typeplot % Draw '+' and '-' instead of numbers for colorbar tick labels
tmp = get(gca, 'ytick');
set(gca, 'ytickmode', 'manual', 'yticklabelmode', 'manual', 'ytick', [tmp(1) tmp(end)], 'yticklabel', { '-' '+' });
end
end
try, icadefs; set(gcf, 'color', BACKCOLOR); catch, end
if nbgraph> 1,
a = textsc(0.5, 0.05, topotitle);
set(a, 'fontweight', 'bold');
axcopy(gcf, [ 'set(gcf, ''''units'''', ''''pixels''''); postmp = get(gcf, ''''position'''');' ...
'set(gcf, ''''position'''', [postmp(1) postmp(2) 560 420]); rotate3d; clear postmp;' ]);
end
% generate output command
% -----------------------
com = sprintf('pop_headplot(EEG, %d, %s, ''%s'', [%s], %s);', typeplot, vararg2str(arg2), ...
topotitle, int2str(rowcols), vararg2str( pop_options ) );
if compute_file, com = [ 'EEG = ' com ]; end
if nbgraph== 1, com = [ 'figure; ' com ]; try, rotate3d(gcf); catch, end; end
return;
% test for wrong parameters
% -------------------------
function bool = test_wrong_parameters(hdl)
bool = 0;
loadfile = get( findobj( hdl, 'userdata', 'loadfile') , 'value' );
textlines = '';
if ~loadfile
coreg1 = get( findobj( hdl, 'userdata', 'coregtext') , 'string' );
coreg3 = get( findobj( hdl, 'userdata', 'coregfile') , 'string' );
if isempty(coreg1)
textlines = strvcat('You must co-register your channel locations with the head model.', ...
'This is an easy process: Press the "Manual coreg." button in the', ...
'right center of the pop_headplot() window and follow instructions.',...
'To bypass co-registration (not recommended), enter', ...
'"0 0 0 0 0 0 1 1 1" as the "Tailairach transformation matrix.');
bool = 1;
end
if isempty(coreg3)
textlines = strvcat(textlines, ' ', 'You need to enter an output file name.');
bool = 1;
end
if bool
warndlg2( textlines, 'Error');
end
end