: Normally yes though depends on the designer. What boat are you looking at?

: Bill H.

The ones I am familiar with were just old fashioned X,Y co-ordinates. You have a horizontal line, your baseline, and a vertical line, the centerline of the hull. You measure on the horizontal X", which gives you apoint, and from there up to Y" which gives you your final point. You get a series of points that you connect with a french curve, a batten or whatever other interesting gimmicks you can find. That gives you a "half breadth" i.e. one half of a station mold. Duplcate the co-ordinates on the other half of the center line and you have the entire station mold.