#NEWLINE# @ classmethod #NEWLINE# def empty( cls , subject , value = 0 , **kwargs ) : #NEWLINE# #INDENT# try : #NEWLINE# #INDENT# ( left , right ) = db . get_surf ( subject , 'wm' ) #NEWLINE# #UNINDENT# except IOError : #NEWLINE# #INDENT# ( left , right ) = db . get_surf ( subject , 'fiducial' ) #NEWLINE# #UNINDENT# nverts = ( len ( subject [ 0 ] ) + len ( right [ 0 ] ) ) #NEWLINE# return cls ( ( np . ones ( ( nverts , ) ) * value ) , subject , ** kwargs )