GIS C#.NET Library or API supports formats Shapefile, GeoJSON, FileGDB, GML, KML, SVG, PostGis, Sql Server, GeoTIFF. It can read, write, convert and visualize vector data, manipulate geometries, perform analysis and lookup spatial reference systems by SRID....non-linear geometries (curves) Import and export geometries from/to...geometries and entire layers Import spatial reference systems from...