Note that this reference documentation is identical to the help that is displayed in MATLAB when you type “help ft_plot_headshape”.

  FT_PLOT_HEADSHAPE visualizes the shape of a head from a variety of
  acquisition system. Usually the head shape is measured with a
  Polhemus tracker and some proprietary software (e.g. from CTF, BTi
  or Yokogawa). The headshape and fiducials can be used for coregistration.
  If present in the headshape, the location of the fiducials will also
  be shown.
 
  Use as
    ft_plot_headshape(shape, ...)
  where the shape is a structure obtained from FT_READ_HEADSHAPE.
 
  Optional arguments should come in key-value pairs and can include
    'vertexcolor'  = color specification as [r g b] values or a string, for example 'brain', 'cortex', 'skin', 'red', 'r'
    'vertexsize'   = scalar value specifying the size of the vertices (default = 10)
    'fidcolor'     = color specification as [r g b] values or a string, for example 'brain', 'cortex', 'skin', 'red', 'r'
    'fidmarker'    = ['.', '*', '+',  ...]
    'fidlabel'     = ['yes', 'no', 1, 0, 'true', 'false']
    'transform'    = transformation matrix for the fiducials, converts MRI voxels into head shape coordinates
    'unit'         = string, convert to the specified geometrical units (default = [])
 
  Example
    shape = ft_read_headshape(filename);
    ft_plot_headshape(shape)