$ sudo apt-get update
$ sudo apt-get install openscenegraph-plugin-citygml-

openscenegraph-plugin-citygml- is installed in your system.

Make ensure the openscenegraph-plugin-citygml- package were installed using the commands given below,

$ sudo dpkg-query -l | grep openscenegraph-plugin-citygml-*

You will get with openscenegraph-plugin-citygml- package name, version, architecture and description in a table

openscenegraph-plugin-citygml- package basic information: