Description The distortion grid and the displacement vectors provide a representation of the geometric accuracy of the map and were generated using MapAnalyst (Jenny & Hurni 2011).Author Mercator, Gerardus; Ortelius, Abraham (1570-1571)JPG file - 4.45 MB - 5 000 x 3 889 pixelsadded on 2016-03-18288 viewsMap based on Jenny, B.; Hurni, L. (2011). Studying cartographic herita...