Vextractor is a tool for transforming raster images into vector formats by building centerlines and outlines. This vectorizer tool could be used for vectorizing of charts, maps, schemes and other similar images for input to CAD & GIS systems. An application has an option to setup a reference for images, in other words to assign a real coordinates to certain raster points. Thus, you can get vector data not only in the raster coordinates, but real geographical coordinates or in the chart coordinates.