Problem description
The QCAR I generated in gazebo with the original launch file was overturned, but after I changed the z-axis of the generate parameter in the file from -0.1 to +0.1, it could be generated normally.
when z-axis param is -0.1

when z-axis param is 0.1

The modified part of the launch file
<!-- Set initial robot pose -->
<arg name="x" default="0.5"/>
<arg name="y" default="-0.4"/>
<arg name="z" default="0.1"/>
<arg name="roll" default="0"/>
<arg name="pitch" default="0"/>
<arg name="yaw" default="0.5"/>
Problem description
The QCAR I generated in gazebo with the original launch file was overturned, but after I changed the z-axis of the generate parameter in the file from -0.1 to +0.1, it could be generated normally.
when z-axis param is -0.1
when z-axis param is 0.1
The modified part of the launch file
<!-- Set initial robot pose --><arg name="x" default="0.5"/><arg name="y" default="-0.4"/><arg name="z" default="0.1"/><arg name="roll" default="0"/><arg name="pitch" default="0"/><arg name="yaw" default="0.5"/>