I'm seeking agreement from people with better minds for math than mine...
Recently I've been toying with the artistic term "negative space".
Mathematically it seems to be very off base. I shall explain as best as I can. The term "negative space" in the art world usually refers to empty space around an object. So if you had a vase sitting on a table the "negative space" would be the void surrounding the solid objects.
http://en.wikipedia.org/wiki/Negative_spaceNow correct me if I'm wrong but negative space in the mathematical sense would mean that you take the the distance of each point that defines the vase and multiply by -1 yielding a mirrored object. I think a better term for this artistic notion of "negative space" would be "complimentary space". If we treat the entire picture as a whole the and subtract the vase we get the empty space around the vase or the compliment of the vase.
I just think the notion of empty space used in this way is incorrect and ignorant. It seems the bastard child of a person who lacks the proper terminology. Am I wrong here?