This commit is contained in:
Björn Ellensohn 2023-06-06 10:53:36 +02:00
parent e1be35f4a4
commit 467fb49a8c
5 changed files with 144 additions and 140 deletions

View File

@ -6,35 +6,35 @@ https://github.com/ros-simulation/gazebo_ros_demos/blob/kinetic-devel/rrbot_desc
<robot>
<material name="black">
<color rgba="0.0 0.0 0.0 1.0"/>
<color rgba="0.0 0.0 0.0 1.0" />
</material>
<material name="blue">
<color rgba="0.0 0.0 0.8 1.0"/>
<color rgba="0.0 0.0 0.8 1.0" />
</material>
<material name="green">
<color rgba="0.0 0.8 0.0 1.0"/>
<color rgba="0.0 0.8 0.0 1.0" />
</material>
<material name="grey">
<color rgba="0.2 0.2 0.2 1.0"/>
<color rgba="0.2 0.2 0.2 1.0" />
</material>
<material name="orange">
<color rgba="${255/255} ${108/255} ${10/255} 1.0"/>
<color rgba="${255/255} ${108/255} ${10/255} 1.0" />
</material>
<material name="brown">
<color rgba="${222/255} ${207/255} ${195/255} 1.0"/>
<color rgba="${222/255} ${207/255} ${195/255} 1.0" />
</material>
<material name="red">
<color rgba="0.8 0.0 0.0 1.0"/>
<color rgba="0.8 0.0 0.0 1.0" />
</material>
<material name="white">
<color rgba="1.0 1.0 1.0 1.0"/>
<color rgba="1.0 1.0 1.0 1.0" />
</material>
</robot>

View File

@ -4,7 +4,7 @@
<xacro:macro name="diffbot" params="prefix">
<!-- Constants for robot dimensions -->
<xacro:property name="PI" value="3.1415926535897931"/>
<xacro:property name="PI" value="3.1415926535897931" />
<xacro:property name="base_mass" value="0.3" /> <!-- arbitrary value for base mass -->
<xacro:property name="base_width" value="0.25" /> <!-- Updated wheel spacing to 25cm -->
<xacro:property name="base_length" value="0.34" />
@ -12,59 +12,63 @@
<xacro:property name="wheel_mass" value="0.3" /> <!-- arbitrary value for wheel mass -->
<xacro:property name="wheel_len" value="0.020" />
<xacro:property name="wheel_radius" value="0.0625" />
<xacro:property name="caster_wheel_mass" value="0.1" /> <!-- arbitrary value for caster wheel mass -->
<xacro:property name="caster_wheel_mass" value="0.1" /> <!-- arbitrary value for caster wheel
mass -->
<xacro:property name="caster_wheel_radius" value="0.04" />
<xacro:property name="z_offset" value="-${base_height/2}" /> <!-- Space btw top of beam and the each joint -->
<xacro:property name="z_offset" value="-${base_height/2}" /> <!-- Space btw top of beam and the
each joint -->
<!-- dummy link - used for ros2 control so it stops complaining? -->
<link name="${prefix}dummy">
</link>
<joint name="${prefix}dummy_joint" type="fixed">
<parent link="${prefix}dummy"/>
<child link="${prefix}base_link"/>
<parent link="${prefix}dummy" />
<child link="${prefix}base_link" />
</joint>
<!-- Base Link -->
<link name="${prefix}base_link">
<collision>
<origin xyz="0 0 0" rpy="0 0 0"/>
<origin xyz="0 0 0" rpy="0 0 0" />
<geometry>
<box size="${base_length} ${base_width} ${base_height}"/> <!-- Updated base dimensions -->
<box size="${base_length} ${base_width} ${base_height}" /> <!-- Updated base dimensions -->
</geometry>
</collision>
<visual>
<origin xyz="0 0 ${base_height/2}" rpy="0 0 0"/>
<origin xyz="0 0 ${base_height/2}" rpy="0 0 0" />
<geometry>
<box size="${base_length} ${base_width} ${base_height}"/> <!-- Updated base dimensions -->
<box size="${base_length} ${base_width} ${base_height}" /> <!-- Updated base dimensions -->
</geometry>
<material name="orange"/>
<material name="orange" />
</visual>
<inertial>
<origin xyz="0 0 0" rpy="0 0 0"/>
<mass value="${base_mass}"/>
<origin xyz="0 0 0" rpy="0 0 0" />
<mass value="${base_mass}" />
<inertia
ixx="${base_mass / 12.0 * (base_length*base_length + base_height*base_height)}" ixy="0.0" ixz="0.0"
ixx="${base_mass / 12.0 * (base_length*base_length + base_height*base_height)}" ixy="0.0"
ixz="0.0"
iyy="${base_mass / 12.0 * (base_height*base_height + base_width*base_width)}" iyz="0.0"
izz="${base_mass / 12.0 * (base_width*base_width + base_length*base_length)}"/>
izz="${base_mass / 12.0 * (base_width*base_width + base_length*base_length)}" />
</inertial>
</link>
<joint name="${prefix}left_wheel_joint" type="continuous">
<parent link="${prefix}base_link"/>
<child link="${prefix}left_wheel"/>
<origin xyz="${base_length/2} 0 ${z_offset}" rpy="0 0 0"/> <!-- Updated wheel position -->
<axis xyz="0 1 0"/>
<dynamics damping="0.2"/>
<parent link="${prefix}base_link" />
<child link="${prefix}left_wheel" />
<origin xyz="${base_length/2} 0 ${z_offset}" rpy="0 0 0" /> <!-- Updated wheel position -->
<axis xyz="0 1 0" />
<dynamics damping="0.2" />
</joint>
<!-- BASE_FOOTPRINT LINK (Used for SLAM: Should be oin the ground beneath the robo like the shadow) -->
<!-- BASE_FOOTPRINT LINK (Used for SLAM: Should be oin the ground beneath the robo like the
shadow) -->
<joint name="${prefix}base_footprint_joint" type="fixed">
<parent link="${prefix}base_link"/>
<child link="${prefix}base_footprint"/>
<origin xyz="0 0 0" rpy="0 0 0"/>
<parent link="${prefix}base_link" />
<child link="${prefix}base_footprint" />
<origin xyz="0 0 0" rpy="0 0 0" />
</joint>
<link name="${prefix}base_footprint">
@ -73,167 +77,167 @@
<!-- left wheel Link -->
<link name="${prefix}left_wheel">
<collision>
<origin xyz="0 0 0" rpy="${PI/2} 0 0"/>
<origin xyz="0 0 0" rpy="${PI/2} 0 0" />
<geometry>
<cylinder length="${wheel_len}" radius="${wheel_radius}"/>
<cylinder length="${wheel_len}" radius="${wheel_radius}" />
</geometry>
</collision>
<visual>
<origin xyz="0 0 0" rpy="${PI/2} 0 0"/>
<origin xyz="0 0 0" rpy="${PI/2} 0 0" />
<geometry>
<cylinder length="${wheel_len}" radius="${wheel_radius}"/>
<cylinder length="${wheel_len}" radius="${wheel_radius}" />
</geometry>
<material name="black"/>
<material name="black" />
</visual>
<inertial>
<origin xyz="0 0 0" rpy="${PI/2} 0 0"/>
<mass value="${wheel_mass}"/>
<origin xyz="0 0 0" rpy="${PI/2} 0 0" />
<mass value="${wheel_mass}" />
<inertia
ixx="${wheel_mass / 12.0 * (3*wheel_radius + wheel_len*wheel_len)}" ixy="0.0" ixz="0.0"
iyy="${wheel_mass / 12.0 * wheel_radius*wheel_radius}" iyz="0.0"
izz="${wheel_mass / 12.0 * wheel_radius*wheel_radius}"/>
izz="${wheel_mass / 12.0 * wheel_radius*wheel_radius}" />
</inertial>
</link>
<joint name="${prefix}right_wheel_joint" type="continuous">
<parent link="${prefix}base_link"/>
<child link="${prefix}right_wheel"/>
<origin xyz="${base_length/2} 0 ${z_offset}" rpy="0 0 0"/> <!-- Updated wheel position -->
<axis xyz="0 -1 0"/>
<dynamics damping="0.2"/>
<parent link="${prefix}base_link" />
<child link="${prefix}right_wheel" />
<origin xyz="${base_length/2} 0 ${z_offset}" rpy="0 0 0" /> <!-- Updated wheel position -->
<axis xyz="0 -1 0" />
<dynamics damping="0.2" />
</joint>
<!-- right wheel Link -->
<link name="${prefix}right_wheel">
<collision>
<origin xyz="0 0 0" rpy="${PI/2} 0 0"/>
<origin xyz="0 0 0" rpy="${PI/2} 0 0" />
<geometry>
<cylinder length="${wheel_len}" radius="${wheel_radius}"/>
<cylinder length="${wheel_len}" radius="${wheel_radius}" />
</geometry>
</collision>
<visual>
<origin xyz="0 0 0" rpy="${PI/2} 0 0"/>
<origin xyz="0 0 0" rpy="${PI/2} 0 0" />
<geometry>
<cylinder length="${wheel_len}" radius="${wheel_radius}"/>
<cylinder length="${wheel_len}" radius="${wheel_radius}" />
</geometry>
<material name="black"/>
<material name="black" />
</visual>
<inertial>
<origin xyz="0 0 0" rpy="${PI/2} 0 0"/>
<mass value="${wheel_mass}"/>
<origin xyz="0 0 0" rpy="${PI/2} 0 0" />
<mass value="${wheel_mass}" />
<inertia
ixx="${wheel_mass / 12.0 * (3*wheel_radius + wheel_len*wheel_len)}" ixy="0.0" ixz="0.0"
iyy="${wheel_mass / 12.0 * wheel_radius*wheel_radius}" iyz="0.0"
izz="${wheel_mass / 12.0 * wheel_radius*wheel_radius}"/>
izz="${wheel_mass / 12.0 * wheel_radius*wheel_radius}" />
</inertial>
</link>
<joint name="${prefix}caster_wheel_joint" type="fixed">
<parent link="${prefix}base_link"/>
<child link="${prefix}caster_wheel"/>
<origin xyz="${-base_length/2} 0 ${z_offset}" rpy="0 0 0"/> <!-- Updated caster wheel position -->
<parent link="${prefix}base_link" />
<child link="${prefix}caster_wheel" />
<origin xyz="${-base_length/2} 0 ${z_offset}" rpy="0 0 0" /> <!-- Updated caster wheel position -->
</joint>
<!-- caster wheel Link -->
<link name="${prefix}caster_wheel">
<collision>
<origin xyz="0 0 0" rpy="0 0 0"/>
<origin xyz="0 0 0" rpy="0 0 0" />
<geometry>
<sphere radius="${caster_wheel_radius}"/>
<sphere radius="${caster_wheel_radius}" />
</geometry>
</collision>
<visual>
<origin xyz="0 0 0" rpy="0 0 0"/>
<origin xyz="0 0 0" rpy="0 0 0" />
<geometry>
<sphere radius="${caster_wheel_radius}"/>
<sphere radius="${caster_wheel_radius}" />
</geometry>
<material name="white"/>
<material name="white" />
</visual>
<inertial>
<origin xyz="0 0 0" rpy="0 0 0"/>
<mass value="${caster_wheel_mass}"/>
<origin xyz="0 0 0" rpy="0 0 0" />
<mass value="${caster_wheel_mass}" />
<inertia
ixx="${2.0/5.0 * caster_wheel_mass * caster_wheel_radius * caster_wheel_radius}"
ixy="0.0" ixz="0.0"
iyy="${2.0/5.0 * caster_wheel_mass * caster_wheel_radius * caster_wheel_radius}"
iyz="0.0"
izz="${2.0/5.0 * caster_wheel_mass * caster_wheel_radius * caster_wheel_radius}"/>
ixx="${2.0/5.0 * caster_wheel_mass * caster_wheel_radius * caster_wheel_radius}"
ixy="0.0" ixz="0.0"
iyy="${2.0/5.0 * caster_wheel_mass * caster_wheel_radius * caster_wheel_radius}"
iyz="0.0"
izz="${2.0/5.0 * caster_wheel_mass * caster_wheel_radius * caster_wheel_radius}" />
</inertial>
</link>
</link>
<!-- laser_link -->
<link name="${prefix}laser_link">
<collision>
<origin xyz="${base_length/2} 0 ${base_height}" rpy="0 0 0"/>
<geometry>
<box size="0.1 0.1 0.1"/>
</geometry>
</collision>
<!-- laser_link -->
<link name="${prefix}laser_link">
<collision>
<origin xyz="${base_length/2} 0 ${base_height}" rpy="0 0 0" />
<geometry>
<box size="0.1 0.1 0.1" />
</geometry>
</collision>
<visual>
<origin xyz="${base_length/2} 0 ${base_height}" rpy="0 0 0"/>
<geometry>
<box size="0.1 0.1 0.1"/>
</geometry>
<material name="green"/>
</visual>
<visual>
<origin xyz="${base_length/2} 0 ${base_height}" rpy="0 0 0" />
<geometry>
<box size="0.1 0.1 0.1" />
</geometry>
<material name="green" />
</visual>
<inertial>
<origin xyz="${base_length/2} 0 ${base_height}" rpy="0 0 0"/>
<mass value="0.1"/>
<inertia
ixx="0.001" ixy="0.0" ixz="0.0"
iyy="0.001" iyz="0.0"
izz="0.001"/>
</inertial>
</link>
<inertial>
<origin xyz="${base_length/2} 0 ${base_height}" rpy="0 0 0" />
<mass value="0.1" />
<inertia
ixx="0.001" ixy="0.0" ixz="0.0"
iyy="0.001" iyz="0.0"
izz="0.001" />
</inertial>
</link>
<!-- camera_link -->
<link name="${prefix}camera_link">
<collision>
<origin xyz="${base_length/2} 0 0" rpy="0 0 0"/>
<geometry>
<box size="0.1 0.1 0.1"/>
</geometry>
</collision>
<!-- camera_link -->
<link name="${prefix}camera_link">
<collision>
<origin xyz="${base_length/2} 0 0" rpy="0 0 0" />
<geometry>
<box size="0.1 0.1 0.1" />
</geometry>
</collision>
<visual>
<origin xyz="${base_length/2} 0 0" rpy="0 0 0"/>
<geometry>
<box size="0.1 0.1 0.1"/>
</geometry>
<material name="blue"/>
</visual>
<visual>
<origin xyz="${base_length/2} 0 0" rpy="0 0 0" />
<geometry>
<box size="0.1 0.1 0.1" />
</geometry>
<material name="blue" />
</visual>
<inertial>
<origin xyz="${base_length/2} 0 0" rpy="0 0 0"/>
<mass value="0.1"/>
<inertia
ixx="0.001" ixy="0.0" ixz="0.0"
iyy="0.001" iyz="0.0"
izz="0.001"/>
</inertial>
</link>
<inertial>
<origin xyz="${base_length/2} 0 0" rpy="0 0 0" />
<mass value="0.1" />
<inertia
ixx="0.001" ixy="0.0" ixz="0.0"
iyy="0.001" iyz="0.0"
izz="0.001" />
</inertial>
</link>
<!-- Base Joint -->
<joint name="${prefix}base_joint" type="fixed">
<parent link="${prefix}base_link"/>
<child link="${prefix}laser_link"/>
<origin xyz="0 0 ${base_height}" rpy="0 0 0"/>
</joint>
<!-- Base Joint -->
<joint name="${prefix}base_joint" type="fixed">
<parent link="${prefix}base_link" />
<child link="${prefix}laser_link" />
<origin xyz="0 0 ${base_height}" rpy="0 0 0" />
</joint>
<!-- Front Joint -->
<joint name="${prefix}front_joint" type="fixed">
<parent link="${prefix}laser_link"/>
<child link="${prefix}camera_link"/>
<origin xyz="${base_length/2} 0 ${base_height}" rpy="0 0 0"/>
</joint>
<!-- Front Joint -->
<joint name="${prefix}front_joint" type="fixed">
<parent link="${prefix}laser_link" />
<child link="${prefix}camera_link" />
<origin xyz="${base_length/2} 0 ${base_height}" rpy="0 0 0" />
</joint>
</xacro:macro>
</robot>

View File

@ -11,18 +11,18 @@
<xacro:if value="$(arg enable_joint0)">
<link name="link0" />
<joint name="joint0" type="continuous">
<parent link="world"/>
<child link="link0"/>
<axis xyz="0 0 1"/>
<parent link="world" />
<child link="link0" />
<axis xyz="0 0 1" />
</joint>
</xacro:if>
<xacro:if value="$(arg enable_joint1)">
<link name="link1" />
<joint name="joint1" type="continuous">
<parent link="world"/>
<child link="link1"/>
<axis xyz="0 0 1"/>
<parent link="world" />
<child link="link1" />
<axis xyz="0 0 1" />
</joint>
</xacro:if>