[37] | 1 | function [out1,out2,out3] = ginput2(arg1)
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| 2 | %GINPUT Graphical input from mouse.
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| 3 | % [X,Y] = GINPUT(N) gets N points from the current axes and returns
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| 4 | % the X- and Y-coordinates in length N vectors X and Y. The cursor
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| 5 | % can be positioned using a mouse (or by using the Arrow Keys on some
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| 6 | % systems). Data points are entered by pressing a mouse button
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| 7 | % or any key on the keyboard except carriage return, which terminates
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| 8 | % the input before N points are entered.
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| 9 | %
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| 10 | % [X,Y] = GINPUT gathers an unlimited number of points until the
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| 11 | % return key is pressed.
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| 12 | %
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| 13 | % [X,Y,BUTTON] = GINPUT(N) returns a third result, BUTTON, that
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| 14 | % contains a vector of integers specifying which mouse button was
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| 15 | % used (1,2,3 from left) or ASCII numbers if a key on the keyboard
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| 16 | % was used.
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| 17 |
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| 18 | % Copyright (c) 1984-96 by The MathWorks, Inc.
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| 19 | % $Revision: 2.0 $ $Date: 2003/06/19 12:05:59 $
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| 20 |
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| 21 | % Fixed version by Jean-Yves Bouguet to have a cross instead of 2 lines
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| 22 | % More visible for images
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| 23 |
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| 24 | P = NaN*ones(16,16);
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| 25 | P(1:15,1:15) = 2*ones(15,15);
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| 26 | P(2:14,2:14) = ones(13,13);
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| 27 | P(3:13,3:13) = NaN*ones(11,11);
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| 28 | P(6:10,6:10) = 2*ones(5,5);
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| 29 | P(7:9,7:9) = 1*ones(3,3);
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| 30 |
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| 31 | out1 = []; out2 = []; out3 = []; y = [];
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| 32 | c = computer;
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| 33 | if ~strcmp(c(1:2),'PC') & ~strcmp(c(1:2),'MA')
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| 34 | tp = get(0,'TerminalProtocol');
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| 35 | else
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| 36 | tp = 'micro';
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| 37 | end
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| 38 |
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| 39 | if ~strcmp(tp,'none') & ~strcmp(tp,'x') & ~strcmp(tp,'micro'),
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| 40 | if nargout == 1,
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| 41 | if nargin == 1,
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| 42 | eval('out1 = trmginput(arg1);');
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| 43 | else
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| 44 | eval('out1 = trmginput;');
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| 45 | end
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| 46 | elseif nargout == 2 | nargout == 0,
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| 47 | if nargin == 1,
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| 48 | eval('[out1,out2] = trmginput(arg1);');
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| 49 | else
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| 50 | eval('[out1,out2] = trmginput;');
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| 51 | end
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| 52 | if nargout == 0
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| 53 | out1 = [ out1 out2 ];
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| 54 | end
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| 55 | elseif nargout == 3,
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| 56 | if nargin == 1,
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| 57 | eval('[out1,out2,out3] = trmginput(arg1);');
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| 58 | else
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| 59 | eval('[out1,out2,out3] = trmginput;');
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| 60 | end
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| 61 | end
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| 62 | else
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| 63 |
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| 64 | fig = gcf;
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| 65 | figure(gcf);
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| 66 |
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| 67 | if nargin == 0
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| 68 | how_many = -1;
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| 69 | b = [];
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| 70 | else
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| 71 | how_many = arg1;
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| 72 | b = [];
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| 73 | if isstr(how_many) ...
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| 74 | | size(how_many,1) ~= 1 | size(how_many,2) ~= 1 ...
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| 75 | | ~(fix(how_many) == how_many) ...
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| 76 | | how_many < 0
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| 77 | error('Requires a positive integer.')
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| 78 | end
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| 79 | if how_many == 0
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| 80 | ptr_fig = 0;
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| 81 | while(ptr_fig ~= fig)
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| 82 | ptr_fig = get(0,'PointerWindow');
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| 83 | end
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| 84 | scrn_pt = get(0,'PointerLocation');
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| 85 | loc = get(fig,'Position');
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| 86 | pt = [scrn_pt(1) - loc(1), scrn_pt(2) - loc(2)];
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| 87 | out1 = pt(1); y = pt(2);
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| 88 | elseif how_many < 0
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| 89 | error('Argument must be a positive integer.')
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| 90 | end
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| 91 | end
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| 92 |
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| 93 | pointer = get(gcf,'pointer');
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| 94 |
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| 95 | set(gcf,'Pointer','custom','PointerShapeCData',P,'PointerShapeHotSpot',[8,8]);
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| 96 | %set(gcf,'pointer','crosshair');
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| 97 | fig_units = get(fig,'units');
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| 98 | char = 0;
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| 99 |
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| 100 | while how_many ~= 0
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| 101 | % Use no-side effect WAITFORBUTTONPRESS
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| 102 | waserr = 0;
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| 103 | eval('keydown = wfbp;', 'waserr = 1;');
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| 104 | if(waserr == 1)
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| 105 | if(ishandle(fig))
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| 106 | set(fig,'pointer',pointer,'units',fig_units);
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| 107 | error('Interrupted');
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| 108 | else
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| 109 | error('Interrupted by figure deletion');
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| 110 | end
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| 111 | end
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| 112 |
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| 113 | ptr_fig = get(0,'CurrentFigure');
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| 114 | if(ptr_fig == fig)
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| 115 | if keydown
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| 116 | char = get(fig, 'CurrentCharacter');
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| 117 | button = abs(get(fig, 'CurrentCharacter'));
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| 118 | scrn_pt = get(0, 'PointerLocation');
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| 119 | set(fig,'units','pixels')
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| 120 | loc = get(fig, 'Position');
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| 121 | pt = [scrn_pt(1) - loc(1), scrn_pt(2) - loc(2)];
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| 122 | set(fig,'CurrentPoint',pt);
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| 123 | else
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| 124 | button = get(fig, 'SelectionType');
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| 125 | if strcmp(button,'open')
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| 126 | button = b(length(b));
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| 127 | elseif strcmp(button,'normal')
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| 128 | button = 1;
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| 129 | elseif strcmp(button,'extend')
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| 130 | button = 2;
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| 131 | elseif strcmp(button,'alt')
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| 132 | button = 3;
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| 133 | else
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| 134 | error('Invalid mouse selection.')
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| 135 | end
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| 136 | end
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| 137 | pt = get(gca, 'CurrentPoint');
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| 138 |
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| 139 | how_many = how_many - 1;
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| 140 |
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| 141 | if(char == 13) % & how_many ~= 0)
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| 142 | % if the return key was pressed, char will == 13,
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| 143 | % and that's our signal to break out of here whether
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| 144 | % or not we have collected all the requested data
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| 145 | % points.
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| 146 | % If this was an early breakout, don't include
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| 147 | % the <Return> key info in the return arrays.
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| 148 | % We will no longer count it if it's the last input.
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| 149 | break;
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| 150 | end
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| 151 |
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| 152 | out1 = [out1;pt(1,1)];
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| 153 | y = [y;pt(1,2)];
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| 154 | b = [b;button];
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| 155 | end
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| 156 | end
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| 157 |
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| 158 | set(fig,'pointer',pointer,'units',fig_units);
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| 159 |
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| 160 | if nargout > 1
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| 161 | out2 = y;
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| 162 | if nargout > 2
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| 163 | out3 = b;
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| 164 | end
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| 165 | else
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| 166 | out1 = [out1 y];
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| 167 | end
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| 168 |
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| 169 | end
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| 170 |
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| 171 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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| 172 | function key = wfbp
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| 173 | %WFBP Replacement for WAITFORBUTTONPRESS that has no side effects.
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| 174 |
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| 175 | % Remove figure button functions
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| 176 | fprops = {'windowbuttonupfcn','buttondownfcn', ...
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| 177 | 'windowbuttondownfcn','windowbuttonmotionfcn'};
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| 178 | fig = gcf;
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| 179 | fvals = get(fig,fprops);
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| 180 | set(fig,fprops,{'','','',''})
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| 181 |
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| 182 | % Remove all other buttondown functions
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| 183 | ax = findobj(fig,'type','axes');
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| 184 | if isempty(ax)
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| 185 | ch = {};
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| 186 | else
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| 187 | ch = get(ax,{'Children'});
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| 188 | end
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| 189 | for i=1:length(ch),
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| 190 | ch{i} = ch{i}(:)';
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| 191 | end
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| 192 | h = [ax(:)',ch{:}];
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| 193 | vals = get(h,{'buttondownfcn'});
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| 194 | mt = repmat({''},size(vals));
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| 195 | set(h,{'buttondownfcn'},mt);
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| 196 |
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| 197 | % Now wait for that buttonpress, and check for error conditions
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| 198 | waserr = 0;
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| 199 | eval(['if nargout==0,', ...
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| 200 | ' waitforbuttonpress,', ...
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| 201 | 'else,', ...
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| 202 | ' keydown = waitforbuttonpress;',...
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| 203 | 'end' ], 'waserr = 1;');
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| 204 |
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| 205 | % Put everything back
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| 206 | if(ishandle(fig))
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| 207 | set(fig,fprops,fvals)
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| 208 | set(h,{'buttondownfcn'},vals)
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| 209 | end
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| 210 |
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| 211 | if(waserr == 1)
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| 212 | error('Interrupted');
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| 213 | end
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| 214 |
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| 215 | if nargout>0, key = keydown; end
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| 216 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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