path_planner->dijkstra(source, destination, 1);
时间: 2024-04-14 14:32:11 浏览: 137
这是一个调用路径规划器(path_planner)中的dijkstra函数的代码片段。它使用Dijkstra算法在给定的源点(source)和目标点(destination)之间计算最短路径。最后的参数1可能是用来指定计算最短路径时的权重或代价函数。Dijkstra算法是一种常用的图算法,用于解决单源最短路径问题。它根据节点之间的权重或距离来确定最短路径,并返回从源点到目标点的最短路径。
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给下列程序添加英文注释: MoveBase::~MoveBase(){ recovery_behaviors_.clear(); delete dsrv_; if(as_ != NULL) delete as_; if(planner_costmap_ros_ != NULL) delete planner_costmap_ros_; if(controller_costmap_ros_ != NULL) delete controller_costmap_ros_; planner_thread_->interrupt(); planner_thread_->join(); delete planner_thread_; delete planner_plan_; delete latest_plan_; delete controller_plan_; planner_.reset(); tc_.reset(); }
// Destructor for the MoveBase class
MoveBase::~MoveBase(){
// Clear the vector of recovery behaviors
recovery_behaviors_.clear();
// Delete the dynamic reconfigure server
delete dsrv_;
// Delete the action server
if(as_ != NULL)
delete as_;
// Delete the costmap for the planner
if(planner_costmap_ros_ != NULL)
delete planner_costmap_ros_;
// Delete the costmap for the controller
if(controller_costmap_ros_ != NULL)
delete controller_costmap_ros_;
// Interrupt the planner thread and wait for it to finish
planner_thread_->interrupt();
planner_thread_->join();
// Delete the planner thread
delete planner_thread_;
// Delete the planner plan
delete planner_plan_;
// Delete the latest plan
delete latest_plan_;
// Delete the controller plan
delete controller_plan_;
// Reset the planner and the trajectory controller
planner_.reset();
tc_.reset();
}
<node name="local_planner" pkg="local_planner" type="local_planner.py" launch-prefix="gnome-terminal --title=local_planner -x"/> <node name="controller" pkg="local_planner" type="controller.py" launch-prefix="gnome-terminal --title=controller -x"/>请问launch中的这两句是什么意思,做了什么操作
这两个`<node>`标签是用来在.launch文件中启动两个节点的。每个`<node>`标签都对应一个节点的启动。
第一个`<node>`标签中的属性如下:
- `name="local_planner"`:指定节点的名称为"local_planner"。
- `pkg="local_planner"`:指定节点所属的ROS软件包为"local_planner"。
- `type="local_planner.py"`:指定要运行的节点的类型为"local_planner.py",即一个Python脚本。
- `launch-prefix="gnome-terminal --title=local_planner -x"`:在启动节点之前,使用gnome-terminal命令在新终端中打开一个窗口,并设置窗口的标题为"local_planner"。
第二个`<node>`标签中的属性类似,只是节点名称、要运行的脚本和窗口标题都不同。
这两个节点的目的是启动名为"local_planner"和"controller"的Python脚本节点,并使用gnome-terminal在新终端中打开窗口。这样做的目的可能是为了在不同的终端中同时运行这两个节点,以便可以在各自窗口中查看它们的输出和日志信息。
希望能解答你的问题!如果还有其他疑问,请随时提问。
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