Cartographic transformations and the piezopleth maps method

AbstractNumerous types of anamorphoses, or cartographic transformations, have been perfected, leading to a distorted picture as compared to the usual map representations. Piezopleth maps are a particular case; their construction rests on a physical model used for strength resistance calculations and structures resolution in civil engineering. Locations and thematic variables are combined in the same process; their interrelations point out the differences in potential and are expressed by distortions of surfaces of the structure and shifting of locations. This process, which requires the elaboration of a geographical background with a mesh structure, gives unusual but very expressive maps, whether in comparing phenomenons on a given date or the same phenomenon through time.