   yield return
 
 #-----------------------------------------------------------------------------------------------------------
-@_walk_cellspacing_events = ( me ) ->
-  ### TAINT should rather use default cellspacing ###
-  return null unless me.cellspacing?
-  yield [ 'tex', "\\coordinate (horizontal spacing)  at ( #{me.cellspacing.x}, 0 );%\n", ]
-  yield [ 'tex', "\\coordinate (vertical spacing)    at ( 0, #{me.cellspacing.y} );%\n", ]
+@_walk_bordergap_events = ( me ) ->
+  ### TAINT should rather use default bordergap ###
+  return null unless me.bordergap?
+  yield [ 'tex', "\\coordinate (horizontal spacing)  at ( #{me.bordergap.x}, 0 );%\n", ]
+  yield [ 'tex', "\\coordinate (vertical spacing)    at ( 0, #{me.bordergap.y} );%\n", ]
   yield return
 
 #-----------------------------------------------------------------------------------------------------------

#-----------------------------------------------------------------------------------------------------------
@_walk_events = ( me ) ->
  #.........................................................................................................
  yield from @_walk_opening_events                      me
  yield from @_walk_style_events                        me
  yield from @_walk_cellspacing_events                  me
  yield from @_walk_column_and_row_coordinates_events   me
  yield from @_walk_joint_coordinates_events            me
  yield from @_walk_quad_sides_events                   me
  yield from @_walk_quad_coordinates_events             me
  yield from @_walk_debug_joints_events                 me
  yield from @_walk_debug_quadgrid_events               me
  yield from @_walk_quad_borders_events                 me
  yield from @_walk_closing_events                      me
  #.........................................................................................................
  # ### dump description for debugging ###

  yield return

#-----------------------------------------------------------------------------------------------------------
@_walk_debug_joints_events = ( me ) ->
  unless me.debug
    yield return
  @_ensure_joint_coordinates  me
  #.........................................................................................................
  ### TAINT code duplication; use iterator ###
