Note that this reference documentation is identical to the help that is displayed in MATLAB when you type “help ft_layoutplot”.
FT_LAYOUTPLOT makes a figure with the 2-D layout of the channel positions for topoplotting and the individual channel axes (i.e. width and height of the subfigures) for multiplotting. A correct 2-D layout is a prerequisite for plotting the topographical distribution of the potential or field distribution, or for plotting timecourses in a topographical arrangement. This function uses the same configuration options as prepare_layout and as the topoplotting and multiplotting functions. The difference is that this function plots the layout without any data, which facilitates the validation of your 2-D layout. Use as ft_layoutplot(cfg, data) There are several ways in which a 2-D layout can be made: it can be read directly from a *.lay file, it can be created based on 3-D electrode or gradiometer positions in the configuration or in the data, or it can be created based on the specification of an electrode of gradiometer file. You can specify either one of the following configuration options cfg.layout = filename containg the layout cfg.rotate = number, rotation around the z-axis in degrees (default = , which means automatic) cfg.projection = string, 2D projection method can be 'stereographic', 'ortographic', 'polar', 'gnomic' or 'inverse' (default = 'orthographic') cfg.elec = structure with electrode definition cfg.grad = structure with gradiometer definition cfg.elecfile = filename containing electrode definition cfg.gradfile = filename containing gradiometer definition cfg.output = filename to which the layout will be written (default = ) cfg.montage = 'no' or a montage structure (default = 'no') cfg.image = filename, use an image to construct a layout (e.g. usefull for ECoG grids) Alternatively the layout can be constructed from either data.elec structure with electrode positions data.grad structure with gradiometer definition Alternatively, you can specify cfg.layout = 'ordered' which will give you a 2-D ordered layout. Note that this is only suited for multiplotting and not for topoplotting. To facilitate data-handling and distributed computing you can use cfg.inputfile = ... If you specify this option the input data will be read from a *.mat file on disk. This mat files should contain only a single variable named 'data', corresponding to the input structure. See also FT_PREPARE_LAYOUT, FT_TOPOPLOTER, FT_TOPOPLOTTFR, FT_MULTIPLOTER, FT_MULTIPLOTTFR