<?xml version="1.0" encoding="utf-8"?> <sdf version="1.6"> <world name="default"> <!-- Ground Plane --> <include> <uri>model://ground_plane</uri> </include> <include> <uri>model://sun</uri> </include> <model name="box_s_R_1"> <pose>1 3 0 0</pose> <link name="link"> <collision name="collision"> <geometry> <box> <size>1 1 1</size> </box> </geometry> </collision> <visual name="visual"> <geometry> <box> <size>1 1 1</size> </box> </geometry> </visual> </link> </model> </world> </sdf>