Technical/Engineering drawings are not mentioned

edit

I am missing information on Engineering drawings... Hatching is used there as well, but this article presents pretty much only artistic uses (and mentions heraldry a bit).

Also, there is no information about the differences between hatching, shading and ruling. This site suggests they are pretty much the same, but I guess there are some differences?

I am not a native English speaker, so could someone who is chip in with the intricacies of the wording? Thanks, Justsail (talk) 08:58, 26 January 2017 (UTC)Reply