#process with: dot textrendering.gv -Tpng > textrendering.png
digraph textrendering {
# Classes without important virtual members: Round
# Classes with    important virtual members: Rect
# Pointers [style=dashed]
# Red: function is called
  text_placements[shape=box]
  text_placement_info[shape=box]
  Renderer

  TextSymbolizer -> text_placements [label="placement_options_", style=dashed]
  text_placements -> text_symbolizer_properties [label="properties"]
  text_placements -> text_placement_info [label="get_placement_info()", style=dashed]
  text_placement_info -> text_symbolizer_properties [label="properties"]
  text_placement_info -> text_path [label="placements", style=dashed]
  text_placement_info -> text_placement_info [label="next()"]
  text_symbolizer_properties -> text_processor [label="processor"]
  text_processor ->  processed_text [label="process()", style=dashed]
  processed_text -> string_info [label="get_string_info()"]
  text_path -> Renderer [color=red, label="used by"]
  Renderer -> text_placement_info [color=red, label="init()"]
  Renderer -> processed_text [color=red, label="initializes"]
  
}