Shanghai Scaled Subway Map by Jiyong Wang on map layout, map distortion, grid reference, geographic information system, map of united states of america, map of florida, contour line, geographic coordinate system, linear scale, map of australia with cities, universal transverse mercator coordinate system, map of va, map grid, map distance, aerial photography, map legend, map symbols, compass rose, map key, map projection, map series, map area, map of texas, map skills, history of cartography, cartographic relief depiction, map tools, map boundaries, map features, spatial analysis, map region,