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reference:ft_select_voxel [2018/08/23 14:43] (current)
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 +=====  FT_SELECT_VOXEL =====
 +
 +Note that this reference documentation is identical to the help that is displayed in MATLAB when you type "help ft_select_voxel"​.
 +
 +<​html><​pre>​
 +  <a href=/​reference/​ft_select_voxel><​font color=green>​FT_SELECT_VOXEL</​font></​a>​ is a helper function that can be used as callback function
 +  in a figure. It allows the user to select a voxel from a (resliced) 3-D volume.
 + 
 +  Use as
 +    voxel = ft_select_voxel(h,​ eventdata, ...)
 +  The first two arguments are automatically passed by MATLAB to any
 +  callback function.
 + 
 +  Additional options should be specified in key-value pairs and can be
 +    '​callback' ​ = function handle to be executed after channels have been selected
 + 
 +  You can pass additional arguments to the callback function in a cell-array
 +  like {@function_handle,​arg1,​arg2}
 + 
 +  Example
 +    % create a figure with a random 3-D volume
 +    mri = rand(128,​128,​128);​
 +    ft_plot_slice(mri,​ '​location',​ [64 64 64], '​orientation',​ [1 1 1]);
 +    view(120,​30)
 +    xlabel('​x'​);​ ylabel('​y'​);​ zlabel('​z'​);​ grid on
 +    axis([0 128 0 128 0 128])
 +    axis equal; axis vis3d
 +    axis([0 128 0 128 0 128])
 + 
 +    % add this function as the callback to make a single selection
 +    set(gcf, '​WindowButtonDownFcn',​ {@ft_select_voxel,​ '​callback',​ @disp})
 + 
 +  Subsequently you can click in the figure and you'll see that the disp
 +  function is executed as callback and that it displays the selected
 +  voxel.
 + 
 +  See also <a href=/​reference/​ft_select_box><​font color=green>​FT_SELECT_BOX</​font></​a>,​ <a href=/​reference/​ft_select_channel><​font color=green>​FT_SELECT_CHANNEL</​font></​a>,​ <a href=/​reference/​ft_select_point><​font color=green>​FT_SELECT_POINT</​font></​a>,​ <a href=/​reference/​ft_select_point3d><​font color=green>​FT_SELECT_POINT3D</​font></​a>,​ <a href=/​reference/​ft_select_range><​font color=green>​FT_SELECT_RANGE</​font></​a>​
 +</​pre></​html>​