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....and export geometries from/to WKT and WKB Control the precision...systems from WKT, export spatial reference systems to WKT Supported...