best tool for drawing CNN diagrams in publications

[skeptic.sisyphus]

Hi,

I would like to know what tools can be used under linux to draw expressive network diagrams? I have noticed that some publications have quite elaborative diagrams which clearly depict the various layers but i am unaware if there is any tool which already have some common building blocks to design such diagrams. I understand that it is possible to use some simple figuring tools like Dia but i would like to know a tool which can assist in drawing for this specific type of illustrations. 

Thanks,