WIP: add X3

This commit is contained in:
Daniel Agar
2022-08-14 15:15:24 -04:00
parent 61226a39bd
commit 04ac07f07a
16 changed files with 10971 additions and 158 deletions
File diff suppressed because one or more lines are too long
File diff suppressed because one or more lines are too long
File diff suppressed because one or more lines are too long
Binary file not shown.

After

Width:  |  Height:  |  Size: 206 KiB

@@ -0,0 +1,20 @@
<?xml version="1.0"?>
<model>
<name>x3</name>
<version>1.0</version>
<sdf version="1.6">model.sdf</sdf>
<author>
<name>Carlos Aguero</name>
<email>caguero@openrobotics.org</email>
</author>
<author>
<name>Cole Biesemeyer</name>
<email>cole@openrobotics.org</email>
</author>
<description>
</description>
</model>
+374
View File
@@ -0,0 +1,374 @@
<?xml version="1.0" encoding="UTF-8"?>
<sdf version="1.6">
<model name="X3">
<pose>0 0 0.053302 0 0 0</pose>
<link name="base_link">
<pose frame="">0 0 0 0 -0 0</pose>
<inertial>
<pose frame="">0 0 0 0 -0 0</pose>
<mass>1.5</mass>
<inertia>
<ixx>0.0347563</ixx>
<ixy>0</ixy>
<ixz>0</ixz>
<iyy>0.07</iyy>
<iyz>0</iyz>
<izz>0.0977</izz>
</inertia>
</inertial>
<collision name="base_link_inertia_collision">
<pose frame="">0 0 0 0 -0 0</pose>
<geometry>
<box>
<size>0.47 0.47 0.11</size>
</box>
</geometry>
</collision>
<visual name="base_link_inertia_visual">
<pose frame="">0 0 0 0 -0 0</pose>
<geometry>
<mesh>
<scale>1 1 1</scale>
<uri>meshes/x3.dae</uri>
</mesh>
</geometry>
</visual>
<sensor name="imu_sensor" type="imu">
<always_on>1</always_on>
<update_rate>250</update_rate>
</sensor>
</link>
<link name="rotor_0">
<pose frame="">0.13 -0.22 0.023 0 -0 0</pose>
<inertial>
<pose frame="">0 0 0 0 -0 0</pose>
<mass>0.005</mass>
<inertia>
<ixx>9.75e-07</ixx>
<ixy>0</ixy>
<ixz>0</ixz>
<iyy>4.17041e-05</iyy>
<iyz>0</iyz>
<izz>4.26041e-05</izz>
</inertia>
</inertial>
<collision name="rotor_0_collision">
<pose frame="">0 0 0 0 -0 0</pose>
<geometry>
<cylinder>
<length>0.005</length>
<radius>0.1</radius>
</cylinder>
</geometry>
<surface>
<contact>
<ode />
</contact>
<friction>
<ode />
</friction>
</surface>
</collision>
<visual name="rotor_0_visual">
<pose frame="">0 0 0 0 -0 0</pose>
<geometry>
<mesh>
<scale>0.1 0.1 0.1</scale>
<uri>meshes/propeller_ccw.dae</uri>
</mesh>
</geometry>
<material>
<script>
<name>Gazebo/Blue</name>
<uri>file://media/materials/scripts/gazebo.material</uri>
</script>
</material>
</visual>
<gravity>1</gravity>
<velocity_decay />
</link>
<joint name="rotor_0_joint" type="revolute">
<child>rotor_0</child>
<parent>base_link</parent>
<axis>
<xyz>0 0 1</xyz>
<limit>
<lower>-1e+16</lower>
<upper>1e+16</upper>
</limit>
<dynamics>
<spring_reference>0</spring_reference>
<spring_stiffness>0</spring_stiffness>
</dynamics>
<use_parent_model_frame>1</use_parent_model_frame>
</axis>
</joint>
<link name="rotor_1">
<pose frame="">-0.13 0.2 0.023 0 -0 0</pose>
<inertial>
<pose frame="">0 0 0 0 -0 0</pose>
<mass>0.005</mass>
<inertia>
<ixx>9.75e-07</ixx>
<ixy>0</ixy>
<ixz>0</ixz>
<iyy>4.17041e-05</iyy>
<iyz>0</iyz>
<izz>4.26041e-05</izz>
</inertia>
</inertial>
<collision name="rotor_1_collision">
<pose frame="">0 0 0 0 -0 0</pose>
<geometry>
<cylinder>
<length>0.005</length>
<radius>0.1</radius>
</cylinder>
</geometry>
<surface>
<contact>
<ode />
</contact>
<friction>
<ode />
</friction>
</surface>
</collision>
<visual name="rotor_1_visual">
<pose frame="">0 0 0 0 -0 0</pose>
<geometry>
<mesh>
<scale>0.1 0.1 0.1</scale>
<uri>meshes/propeller_ccw.dae</uri>
</mesh>
</geometry>
<material>
<script>
<name>Gazebo/Red</name>
<uri>file://media/materials/scripts/gazebo.material</uri>
</script>
</material>
</visual>
<gravity>1</gravity>
<velocity_decay />
</link>
<joint name="rotor_1_joint" type="revolute">
<child>rotor_1</child>
<parent>base_link</parent>
<axis>
<xyz>0 0 1</xyz>
<limit>
<lower>-1e+16</lower>
<upper>1e+16</upper>
</limit>
<dynamics>
<spring_reference>0</spring_reference>
<spring_stiffness>0</spring_stiffness>
</dynamics>
<use_parent_model_frame>1</use_parent_model_frame>
</axis>
</joint>
<link name="rotor_2">
<pose frame="">0.13 0.22 0.023 0 -0 0</pose>
<inertial>
<pose frame="">0 0 0 0 -0 0</pose>
<mass>0.005</mass>
<inertia>
<ixx>9.75e-07</ixx>
<ixy>0</ixy>
<ixz>0</ixz>
<iyy>4.17041e-05</iyy>
<iyz>0</iyz>
<izz>4.26041e-05</izz>
</inertia>
</inertial>
<collision name="rotor_2_collision">
<pose frame="">0 0 0 0 -0 0</pose>
<geometry>
<cylinder>
<length>0.005</length>
<radius>0.1</radius>
</cylinder>
</geometry>
<surface>
<contact>
<ode />
</contact>
<friction>
<ode />
</friction>
</surface>
</collision>
<visual name="rotor_2_visual">
<pose frame="">0 0 0 0 -0 0</pose>
<geometry>
<mesh>
<scale>0.1 0.1 0.1</scale>
<uri>meshes/propeller_cw.dae</uri>
</mesh>
</geometry>
<material>
<script>
<name>Gazebo/Blue</name>
<uri>file://media/materials/scripts/gazebo.material</uri>
</script>
</material>
</visual>
<gravity>1</gravity>
<velocity_decay />
</link>
<joint name="rotor_2_joint" type="revolute">
<child>rotor_2</child>
<parent>base_link</parent>
<axis>
<xyz>0 0 1</xyz>
<limit>
<lower>-1e+16</lower>
<upper>1e+16</upper>
</limit>
<dynamics>
<spring_reference>0</spring_reference>
<spring_stiffness>0</spring_stiffness>
</dynamics>
<use_parent_model_frame>1</use_parent_model_frame>
</axis>
</joint>
<link name="rotor_3">
<pose frame="">-0.13 -0.2 0.023 0 -0 0</pose>
<inertial>
<pose frame="">0 0 0 0 -0 0</pose>
<mass>0.005</mass>
<inertia>
<ixx>9.75e-07</ixx>
<ixy>0</ixy>
<ixz>0</ixz>
<iyy>4.17041e-05</iyy>
<iyz>0</iyz>
<izz>4.26041e-05</izz>
</inertia>
</inertial>
<collision name="rotor_3_collision">
<pose frame="">0 0 0 0 -0 0</pose>
<geometry>
<cylinder>
<length>0.005</length>
<radius>0.1</radius>
</cylinder>
</geometry>
<surface>
<contact>
<ode />
</contact>
<friction>
<ode />
</friction>
</surface>
</collision>
<visual name="rotor_3_visual">
<pose frame="">0 0 0 0 -0 0</pose>
<geometry>
<mesh>
<scale>0.1 0.1 0.1</scale>
<uri>meshes/propeller_cw.dae</uri>
</mesh>
</geometry>
<material>
<script>
<name>Gazebo/Red</name>
<uri>file://media/materials/scripts/gazebo.material</uri>
</script>
</material>
</visual>
<gravity>1</gravity>
<velocity_decay />
</link>
<joint name="rotor_3_joint" type="revolute">
<child>rotor_3</child>
<parent>base_link</parent>
<axis>
<xyz>0 0 1</xyz>
<limit>
<lower>-1e+16</lower>
<upper>1e+16</upper>
</limit>
<dynamics>
<spring_reference>0</spring_reference>
<spring_stiffness>0</spring_stiffness>
</dynamics>
<use_parent_model_frame>1</use_parent_model_frame>
</axis>
</joint>
<plugin filename="ignition-gazebo-multicopter-motor-model-system" name="ignition::gazebo::systems::MulticopterMotorModel">
<robotNamespace>X3</robotNamespace>
<jointName>rotor_0_joint</jointName>
<linkName>rotor_0</linkName>
<turningDirection>ccw</turningDirection>
<timeConstantUp>0.0125</timeConstantUp>
<timeConstantDown>0.025</timeConstantDown>
<maxRotVelocity>800.0</maxRotVelocity>
<motorConstant>8.54858e-06</motorConstant>
<momentConstant>0.016</momentConstant>
<commandSubTopic>command/motor_speed</commandSubTopic>
<motorNumber>0</motorNumber>
<rotorDragCoefficient>8.06428e-05</rotorDragCoefficient>
<rollingMomentCoefficient>1e-06</rollingMomentCoefficient>
<motorSpeedPubTopic>motor_speed/0</motorSpeedPubTopic>
<rotorVelocitySlowdownSim>10</rotorVelocitySlowdownSim>
<motorType>velocity</motorType>
</plugin>
<plugin filename="ignition-gazebo-multicopter-motor-model-system" name="ignition::gazebo::systems::MulticopterMotorModel">
<robotNamespace>X3</robotNamespace>
<jointName>rotor_1_joint</jointName>
<linkName>rotor_1</linkName>
<turningDirection>ccw</turningDirection>
<timeConstantUp>0.0125</timeConstantUp>
<timeConstantDown>0.025</timeConstantDown>
<maxRotVelocity>800.0</maxRotVelocity>
<motorConstant>8.54858e-06</motorConstant>
<momentConstant>0.016</momentConstant>
<commandSubTopic>command/motor_speed</commandSubTopic>
<motorNumber>1</motorNumber>
<rotorDragCoefficient>8.06428e-05</rotorDragCoefficient>
<rollingMomentCoefficient>1e-06</rollingMomentCoefficient>
<motorSpeedPubTopic>motor_speed/1</motorSpeedPubTopic>
<rotorVelocitySlowdownSim>10</rotorVelocitySlowdownSim>
<motorType>velocity</motorType>
</plugin>
<plugin filename="ignition-gazebo-multicopter-motor-model-system" name="ignition::gazebo::systems::MulticopterMotorModel">
<robotNamespace>X3</robotNamespace>
<jointName>rotor_2_joint</jointName>
<linkName>rotor_2</linkName>
<turningDirection>cw</turningDirection>
<timeConstantUp>0.0125</timeConstantUp>
<timeConstantDown>0.025</timeConstantDown>
<maxRotVelocity>800.0</maxRotVelocity>
<motorConstant>8.54858e-06</motorConstant>
<momentConstant>0.016</momentConstant>
<commandSubTopic>command/motor_speed</commandSubTopic>
<motorNumber>2</motorNumber>
<rotorDragCoefficient>8.06428e-05</rotorDragCoefficient>
<rollingMomentCoefficient>1e-06</rollingMomentCoefficient>
<motorSpeedPubTopic>motor_speed/2</motorSpeedPubTopic>
<rotorVelocitySlowdownSim>10</rotorVelocitySlowdownSim>
<motorType>velocity</motorType>
</plugin>
<plugin filename="ignition-gazebo-multicopter-motor-model-system" name="ignition::gazebo::systems::MulticopterMotorModel">
<robotNamespace>X3</robotNamespace>
<jointName>rotor_3_joint</jointName>
<linkName>rotor_3</linkName>
<turningDirection>cw</turningDirection>
<timeConstantUp>0.0125</timeConstantUp>
<timeConstantDown>0.025</timeConstantDown>
<maxRotVelocity>800.0</maxRotVelocity>
<motorConstant>8.54858e-06</motorConstant>
<momentConstant>0.016</momentConstant>
<commandSubTopic>command/motor_speed</commandSubTopic>
<motorNumber>3</motorNumber>
<rotorDragCoefficient>8.06428e-05</rotorDragCoefficient>
<rollingMomentCoefficient>1e-06</rollingMomentCoefficient>
<motorSpeedPubTopic>motor_speed/3</motorSpeedPubTopic>
<rotorVelocitySlowdownSim>10</rotorVelocitySlowdownSim>
<motorType>velocity</motorType>
</plugin>
</model>
</sdf>
+1 -6
View File
@@ -4,7 +4,6 @@
<pose>0 0 0.121078 0 0 0</pose>
<link name="base_link">
<pose frame="">0 0 0 0 -0 0</pose>
<inertial>
<pose frame="">0 0 0 0 -0 0</pose>
<mass>3.42</mass>
@@ -17,7 +16,6 @@
<izz>0.148916</izz>
</inertia>
</inertial>
<collision name="base_link_inertia_collision">
<pose frame="">0 0 0 0 -0 0</pose>
<geometry>
@@ -143,12 +141,10 @@
<direction>0 0 -1</direction>
<cast_shadows>1</cast_shadows>
</light>
<sensor name="imu_sensor" type="imu">
<always_on>1</always_on>
<update_rate>400</update_rate>
<update_rate>250</update_rate>
<imu>
<enable_orientation>0</enable_orientation>
<angular_velocity>
<x>
<noise type="gaussian">
@@ -707,7 +703,6 @@
<use_parent_model_frame>1</use_parent_model_frame>
</axis>
</joint>
<!-- now some plugins -->
<plugin filename="ignition-gazebo-multicopter-motor-model-system" name="ignition::gazebo::systems::MulticopterMotorModel">
<robotNamespace>X4</robotNamespace>
<jointName>rotor_0_joint</jointName>
+114
View File
@@ -0,0 +1,114 @@
<?xml version="1.0" encoding="UTF-8"?>
<sdf version="1.6">
<world name="quadcopter">
<physics name="4ms" type="ode">
<max_step_size>0.004</max_step_size>
<real_time_factor>1.0</real_time_factor>
</physics>
<plugin filename="libignition-gazebo-physics-system.so" name="ignition::gazebo::systems::Physics" />
<plugin filename="libignition-gazebo-scene-broadcaster-system.so" name="ignition::gazebo::systems::SceneBroadcaster" />
<plugin filename="libignition-gazebo-user-commands-system.so" name="ignition::gazebo::systems::UserCommands" />
<plugin filename="libignition-gazebo-sensors-system.so" name="ignition::gazebo::systems::Sensors">
<render_engine>ogre2</render_engine>
</plugin>
<plugin filename="libignition-gazebo-imu-system.so" name="ignition::gazebo::systems::Imu" />
<gui fullscreen="0">
<!-- 3D scene -->
<plugin filename="GzScene3D" name="3D View">
<ignition-gui>
<title>3D View</title>
<property type="bool" key="showTitleBar">false</property>
<property type="string" key="state">docked</property>
</ignition-gui>
<engine>ogre2</engine>
<scene>scene</scene>
<ambient_light>0.4 0.4 0.4</ambient_light>
<background_color>0.8 0.8 0.8</background_color>
<camera_pose>-6 0 6 0 0.5 0</camera_pose>
</plugin>
<!-- World control -->
<plugin filename="WorldControl" name="World control">
<ignition-gui>
<title>World control</title>
<property type="bool" key="showTitleBar">false</property>
<property type="bool" key="resizable">false</property>
<property type="double" key="height">72</property>
<property type="double" key="width">121</property>
<property type="double" key="z">1</property>
<property type="string" key="state">floating</property>
<anchors target="3D View">
<line own="left" target="left" />
<line own="bottom" target="bottom" />
</anchors>
</ignition-gui>
<play_pause>true</play_pause>
<step>true</step>
<start_paused>true</start_paused>
<service>/world/quadcopter/control</service>
<stats_topic>/world/quadcopter/stats</stats_topic>
</plugin>
<!-- World statistics -->
<plugin filename="WorldStats" name="World stats">
<ignition-gui>
<title>World stats</title>
<property type="bool" key="showTitleBar">false</property>
<property type="bool" key="resizable">false</property>
<property type="double" key="height">110</property>
<property type="double" key="width">290</property>
<property type="double" key="z">1</property>
<property type="string" key="state">floating</property>
<anchors target="3D View">
<line own="right" target="right" />
<line own="bottom" target="bottom" />
</anchors>
</ignition-gui>
<sim_time>true</sim_time>
<real_time>true</real_time>
<real_time_factor>true</real_time_factor>
<iterations>true</iterations>
<topic>/world/quadcopter/stats</topic>
</plugin>
</gui>
<light type="directional" name="sun">
<cast_shadows>true</cast_shadows>
<pose>0 0 10 0 0 0</pose>
<diffuse>0.8 0.8 0.8 1</diffuse>
<specular>0.2 0.2 0.2 1</specular>
<attenuation>
<range>1000</range>
<constant>0.9</constant>
<linear>0.01</linear>
<quadratic>0.001</quadratic>
</attenuation>
<direction>-0.5 0.1 -0.9</direction>
</light>
<model name="ground_plane">
<static>true</static>
<link name="link">
<collision name="collision">
<geometry>
<plane>
<normal>0 0 1</normal>
</plane>
</geometry>
</collision>
<visual name="visual">
<geometry>
<plane>
<normal>0 0 1</normal>
<size>100 100</size>
</plane>
</geometry>
<material>
<ambient>0.8 0.8 0.8 1</ambient>
<diffuse>0.8 0.8 0.8 1</diffuse>
<specular>0.8 0.8 0.8 1</specular>
</material>
</visual>
</link>
</model>
<include>
<uri>model://X3</uri>
</include>
</world>
</sdf>
+111 -136
View File
@@ -1,139 +1,114 @@
<?xml version="1.0" ?>
<?xml version="1.0" encoding="UTF-8"?>
<sdf version="1.6">
<world name="quadcopter">
<physics name="2.5 ms" type="ode">
<max_step_size>0.002500</max_step_size>
<real_time_factor>1.0</real_time_factor>
</physics>
<plugin
filename="libignition-gazebo-physics-system.so"
name="ignition::gazebo::systems::Physics">
</plugin>
<plugin
filename="libignition-gazebo-scene-broadcaster-system.so"
name="ignition::gazebo::systems::SceneBroadcaster">
</plugin>
<plugin
filename="libignition-gazebo-user-commands-system.so"
name="ignition::gazebo::systems::UserCommands">
</plugin>
<plugin
filename="libignition-gazebo-sensors-system.so"
name="ignition::gazebo::systems::Sensors">
<render_engine>ogre2</render_engine>
</plugin>
<plugin filename="libignition-gazebo-imu-system.so"
name="ignition::gazebo::systems::Imu">
</plugin>
<gui fullscreen="0">
<!-- 3D scene -->
<plugin filename="GzScene3D" name="3D View">
<ignition-gui>
<title>3D View</title>
<property type="bool" key="showTitleBar">false</property>
<property type="string" key="state">docked</property>
</ignition-gui>
<engine>ogre2</engine>
<scene>scene</scene>
<ambient_light>0.4 0.4 0.4</ambient_light>
<background_color>0.8 0.8 0.8</background_color>
<camera_pose>-6 0 6 0 0.5 0</camera_pose>
<world name="quadcopter">
<physics name="4ms" type="ode">
<max_step_size>0.004</max_step_size>
<real_time_factor>1.0</real_time_factor>
</physics>
<plugin filename="libignition-gazebo-physics-system.so" name="ignition::gazebo::systems::Physics" />
<plugin filename="libignition-gazebo-scene-broadcaster-system.so" name="ignition::gazebo::systems::SceneBroadcaster" />
<plugin filename="libignition-gazebo-user-commands-system.so" name="ignition::gazebo::systems::UserCommands" />
<plugin filename="libignition-gazebo-sensors-system.so" name="ignition::gazebo::systems::Sensors">
<render_engine>ogre2</render_engine>
</plugin>
<!-- World control -->
<plugin filename="WorldControl" name="World control">
<ignition-gui>
<title>World control</title>
<property type="bool" key="showTitleBar">false</property>
<property type="bool" key="resizable">false</property>
<property type="double" key="height">72</property>
<property type="double" key="width">121</property>
<property type="double" key="z">1</property>
<property type="string" key="state">floating</property>
<anchors target="3D View">
<line own="left" target="left"/>
<line own="bottom" target="bottom"/>
</anchors>
</ignition-gui>
<play_pause>true</play_pause>
<step>true</step>
<start_paused>true</start_paused>
<service>/world/quadcopter/control</service>
<stats_topic>/world/quadcopter/stats</stats_topic>
</plugin>
<!-- World statistics -->
<plugin filename="WorldStats" name="World stats">
<ignition-gui>
<title>World stats</title>
<property type="bool" key="showTitleBar">false</property>
<property type="bool" key="resizable">false</property>
<property type="double" key="height">110</property>
<property type="double" key="width">290</property>
<property type="double" key="z">1</property>
<property type="string" key="state">floating</property>
<anchors target="3D View">
<line own="right" target="right"/>
<line own="bottom" target="bottom"/>
</anchors>
</ignition-gui>
<sim_time>true</sim_time>
<real_time>true</real_time>
<real_time_factor>true</real_time_factor>
<iterations>true</iterations>
<topic>/world/quadcopter/stats</topic>
</plugin>
</gui>
<light type="directional" name="sun">
<cast_shadows>true</cast_shadows>
<pose>0 0 10 0 0 0</pose>
<diffuse>0.8 0.8 0.8 1</diffuse>
<specular>0.2 0.2 0.2 1</specular>
<attenuation>
<range>1000</range>
<constant>0.9</constant>
<linear>0.01</linear>
<quadratic>0.001</quadratic>
</attenuation>
<direction>-0.5 0.1 -0.9</direction>
</light>
<model name="ground_plane">
<static>true</static>
<link name="link">
<collision name="collision">
<geometry>
<plane>
<normal>0 0 1</normal>
</plane>
</geometry>
</collision>
<visual name="visual">
<geometry>
<plane>
<normal>0 0 1</normal>
<size>100 100</size>
</plane>
</geometry>
<material>
<ambient>0.8 0.8 0.8 1</ambient>
<diffuse>0.8 0.8 0.8 1</diffuse>
<specular>0.8 0.8 0.8 1</specular>
</material>
</visual>
</link>
</model>
<include>
<uri>model://X4</uri>
</include>
</world>
<plugin filename="libignition-gazebo-imu-system.so" name="ignition::gazebo::systems::Imu" />
<gui fullscreen="0">
<!-- 3D scene -->
<plugin filename="GzScene3D" name="3D View">
<ignition-gui>
<title>3D View</title>
<property type="bool" key="showTitleBar">false</property>
<property type="string" key="state">docked</property>
</ignition-gui>
<engine>ogre2</engine>
<scene>scene</scene>
<ambient_light>0.4 0.4 0.4</ambient_light>
<background_color>0.8 0.8 0.8</background_color>
<camera_pose>-6 0 6 0 0.5 0</camera_pose>
</plugin>
<!-- World control -->
<plugin filename="WorldControl" name="World control">
<ignition-gui>
<title>World control</title>
<property type="bool" key="showTitleBar">false</property>
<property type="bool" key="resizable">false</property>
<property type="double" key="height">72</property>
<property type="double" key="width">121</property>
<property type="double" key="z">1</property>
<property type="string" key="state">floating</property>
<anchors target="3D View">
<line own="left" target="left" />
<line own="bottom" target="bottom" />
</anchors>
</ignition-gui>
<play_pause>true</play_pause>
<step>true</step>
<start_paused>true</start_paused>
<service>/world/quadcopter/control</service>
<stats_topic>/world/quadcopter/stats</stats_topic>
</plugin>
<!-- World statistics -->
<plugin filename="WorldStats" name="World stats">
<ignition-gui>
<title>World stats</title>
<property type="bool" key="showTitleBar">false</property>
<property type="bool" key="resizable">false</property>
<property type="double" key="height">110</property>
<property type="double" key="width">290</property>
<property type="double" key="z">1</property>
<property type="string" key="state">floating</property>
<anchors target="3D View">
<line own="right" target="right" />
<line own="bottom" target="bottom" />
</anchors>
</ignition-gui>
<sim_time>true</sim_time>
<real_time>true</real_time>
<real_time_factor>true</real_time_factor>
<iterations>true</iterations>
<topic>/world/quadcopter/stats</topic>
</plugin>
</gui>
<light type="directional" name="sun">
<cast_shadows>true</cast_shadows>
<pose>0 0 10 0 0 0</pose>
<diffuse>0.8 0.8 0.8 1</diffuse>
<specular>0.2 0.2 0.2 1</specular>
<attenuation>
<range>1000</range>
<constant>0.9</constant>
<linear>0.01</linear>
<quadratic>0.001</quadratic>
</attenuation>
<direction>-0.5 0.1 -0.9</direction>
</light>
<model name="ground_plane">
<static>true</static>
<link name="link">
<collision name="collision">
<geometry>
<plane>
<normal>0 0 1</normal>
</plane>
</geometry>
</collision>
<visual name="visual">
<geometry>
<plane>
<normal>0 0 1</normal>
<size>100 100</size>
</plane>
</geometry>
<material>
<ambient>0.8 0.8 0.8 1</ambient>
<diffuse>0.8 0.8 0.8 1</diffuse>
<specular>0.8 0.8 0.8 1</specular>
</material>
</visual>
</link>
</model>
<include>
<uri>model://X4</uri>
</include>
</world>
</sdf>