I was trying to make latex documentation using doxygen.
But getting errors like file with extension .sty not found.
Searched a lot and installed various latex packages, bur again same error.
Then i searched “doxygen latex” in the search bar of synaptic package and got solution.
To make latex documentation using doxygen, install following package :
$ sudo apt-get install doxygen-latex
Also learn 3DFACE entity of DXF.