Mathematica supports a variety of coordinate systems, organized for ease and efficiency of both direct and programmatic use. It supports convenient robust automatic range and scaling computation, as well as mechanisms for explicit detailed placement specification.
Scaled — scaled relative to the graphic area
Offset — offset by an absolute distance
ImageScaled — scaled relative to the rendered image
PlotRange — the range of coordinates to include in a graphic
RegionFunction — general function to define a clipping region