1. Open the Gazebo of the main interface, select the model file, in the main interface to set the model parameters , and save it as a file is .world, what our own set of parameters on the inside.
2, we can set the code based on the location of the world file parameters above, to set the parameters of our model location in the workspace of the world ros. The first step we rely gazebo visualization, the second part we put parameters need to copy the files into the world of our own needs.
Note: In this way we can avoid the trouble can not remember a lot of labels, relying on visualization of the complete gazebo
