gEDA-user: co-ordinates PCB

["richard.bown@xxxxxxxxxxxxxxxx" <richard.bown@xxxxxxxxxxxxxxxx>]

Hi
I'm trying to get my head around x,y co-ordinates for foot prints.
Looking at some examples I'm confused with polarity for the x, y 
co-ordinates used in the Element line. If the top LH corner is 0,0
I can understand that the x co-ordinates will be negative, but I cant 
see the logic with the y co-ordinates as moving in the right direction 
would give them a positive co-ordinate.

Or is this like "conventional" and "electron" theory whether current 
flows from positive to negative , or from negative to positive. ??

TIA
-- 
Best wishes

Richard Bown

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