A Fake ROS Package to Keep Various Data of the Robot

How to Use

1. Clone this repository to your catkin workspace's src folder.
2. Assume you need to create a folder to save some data, e.g. YOUR_DATA_DIR.
3. Create a new folder named YOUR_DATA_DIR in data_base folder. Naming convention: use all simple alphanumerics, no spaces, no special characters, no underscores .
4. Empty folders are not tracked by git, so you need to create a file named .gitkeep in YOUR_DATA_DIR folder, for others to see that you have created a new folder for some data.
5. However, what is in YOUR_DATA_DIR folder will be tracked by git, so you need to add YOUR_DATA_DIR/ to .gitignore file (open it and see previous cases), if you don't want to upload your data to github (may be data is specific to a particular runtime and does not need to be shared).

Inside the Codes you can use below code to get the path of the data folder/ file

#include <ros/package.h>

std::string filePath = ros::package::getPath("data_base") + "/<YOUR_DATA_DIR>/<YOUR_FILE>.txt"; // whatever file extension you want

Use Cases

1. Saving data from a ROS node to a file, e.g. a text file, a csv file, a json file, etc.
   1. Global 3D map: data_base/map3d/
   2. PRM graph: data_base/prmgraph/
2. Special robot positions, e.g. home position, charging position, etc.
   1. Home position: data_base/homepos/
   2. Charging position: data_base/chargingpos/
   3. Initial position: data_base/initpos/