ubuntu18.04 ros版本管理melodic/dashing

最新推荐文章于 2025-06-03 16:59:05 发布

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最新推荐文章于 2025-06-03 16:59:05 发布

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ubuntu18.04 ros版本管理melodic/dashing

- 安装dashing版本

bashrc内容如下：

source /opt/ros/melodic/setup.bash
#source /opt/ros/dashing/setup.bash
export ROS_DISTRO=melodic
export PKG_CONFIG_PATH=~/opencv-3.4.4/build/installed/lib/pkgconfig
export LD_LIBRARY_PATH=~/opencv-3.4.4/build/installed/lib
export PATH=${PATH}:/opt/ros/melodic/lib
export ROS_HOSTNAME=127.0.0.1
export ROS_IP=127.0.0.1
if [ -f /opt/ros/melodic/setup.bash ]; then
    source /opt/ros/melodic/setup.bash
elif [ -f /opt/ros/dashing/setup.bash ]; then
    source /opt/ros/dashing/setup.bash
else
    echo "No ros distro found!"
fi

需要注意的是melodic需要的python版本为2.7
修改ubuntu默认python版本的方法如下：

update-alternatives --list python
/usr/bin/python2.7
/usr/bin/python3.6

设置优先级数字越高优先级越大

sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.6 1
sudo update-alternatives --install /usr/bin/python python /usr/bin/python2.7 2

安装dashing版本

试了好几次，以下安装方法是可行的
参考dashing安装

#source /opt/ros/melodic/setup.bash
#source /opt/ros/dashing/setup.bash
# ROS 1.0 melodic or ROS 2.0 Dashing
echo Hello yjq! ROS 1.0 or ROS 2.0? 1=Melodic 2=Dashing 
read ROS
if (($ROS==1));then
source /opt/ros/melodic/setup.bash
echo "Melodic"
elif (($ROS==2));then
source /opt/ros/dashing/setup.bash
echo "Dashing"
else
echo "Non-ROS"
fi