<?xml version="1.0" ?>
<sdf version="1.6">
  <world name="default">
    <gui>
      <camera name='user_cam'>
        <projection_type>orthographic</projection_type>
      </camera>
    </gui>
    <!-- A global light source -->
    <include>
      <uri>model://sun</uri>
    </include>
    <!-- A ground plane -->
    <include>
      <uri>model://ground_plane</uri>
    </include>
  </world>
</sdf>
