message: adding function aerial image in viewer
diff: @@ -278,6 +278,8 @@ class BaseViewer(Viewer):
  if world.map:
  self.drawMap(world.map.GetOpenDriveMap())
  + self.drawMapAerialImage()
  +
  # draw agent goals
  for agent_id, agent in world.agents.items():
  if eval_agent_ids and self.draw_eval_goals and agent.goal_definition and \
  @@ -345,6 +347,9 @@ class BaseViewer(Viewer):
  if self._draw_ego_rss_safety_responses:
  self.DrawRSSEvaluatorState(world, eval_agent_ids[0])
  + def drawMapAerialImage(self):
  + pass
  +
  def drawMap(self, map):
  # draw the boundary of each lane
  for _, road in map.GetRoads().items():
  