   @_compute_field_dimensions    me
   @_compute_border_dimensions   me
   @_compute_pod_dimensions      me
+  @_compute_table_height        me
   #.........................................................................................................
   ### Preparatory ###
   yield from @_walk_opening_events                      me

  return null

#-----------------------------------------------------------------------------------------------------------
@_left_from_colnr = ( me, colnr ) ->
  ### TAINT should precompute ###
  @_ensure_cellwidths me

    fails:                [] ### recoverable errors / fails warnings ###
    fieldcells:           {} ### field extents in terms of cells, by field designations ###
    cellfields:           {} ### which cells belong to what fields, by cellkeys ###
    table_dimensions:     {} ### width and height of enclosing `\minipage`, in terms of (unitwidth,unitheight) ###
    cell_dimensions:      {}
    fieldborders:         {} ### field borders, as TikZ styles by edges ###
    field_dimensions:     {} ### field extents in terms of (unitwidth,unitheight), by field designations ###
