The graph, figure, and data regions each have their own coordinate systems for placing graph elements. Graph and figure region coordinate systems range from 0.0 to 1.0 in the x- and y-directions. A data region's coordinate system is determined by the scales that border it. In most cases it is easier to position annotation items and regions by dragging them than by specifying coordinates.
Graph units are used to place:
Figure units are used to place:
Data units are used to place: