Hello Lawrence.
--Why are the X,Y coordinates upside down in the Y axis? When I learned Cartesian coordinates
the abscissa (X axis) has positive values going to the right and negative values going
to the left with the ordinate (Y axis) with positive values going up and negative values
going down. Quadrant I would have the 0,0 point in the lower left corner.
Do they teach this differently in Europe? It is very confusing to me.
No, its the same in Europe. ;O)
I do not know the real reason, but i guess, it has to to with the
widgets and canvasses used in programming.
It is common, that they have there origin at the upper left corner.
So, if you try to keep your standart origin at the lower left corner,
you have some extra work with coordinate transformation.
This also could be the reason, why gerber files created by kicad have so
much negative values. ;O)
With best regards: Bernd Wiebus alias dl1eic
