3D modeling

[meppe]

Gazeob comes with its own convenient 3D model database, but we might want to add our own models. Therefore, follow the instructions here:

http://gazebosim.org/tutorials?tut=model_structure&cat=

to add a ``models'' directory to the workspace. This needs then to be integrated by exporting the path appropriately so that it can be used directly in the editor.

export GAZEBO_MODEL_PATH=$GAZEBO_MODEL_PATH:~/path/ros_stuff/src/