When the raster gets as complicated as what your examples are there is a whole other level of work needed. Similar to Italiano I use Scan2Cad for most of my simple stuff.
#RASTER TO VECTOR CONVERSION UPDATE#
Update : FYI: I asked the copyright holder (city administration) of the maps to provide them in vector format. Are there any alternatives, which are faster? Can this process be automated (fully or partially) using open source or inexpensive commercial software?.What tools (preferably open source) can I use to vectorize the maps manually and save the data in PostGIS?.One obvious approach is to simply lay raster map over a vector map of the region (there is a vector map of that city in OSM) and manually transfer the lines from raster to vector form. The ultimate purpose is to bring the data contained in these maps into a format that can be understood by non-technical people - inhabitants of the city so that they can express agreement or disagreement with the general plan. compare two versions of a master plan by running database queries.
if I have a house at location X and the government wants to build a road in the same place, I want to notice it) and find all elements of a master plan, which affect a certain region on the map (e.
I need to vectorize them such that I can store all elements (lines, polygons, points) of the map listed in the legend in a database like PostGIS such that I can Industry, energy sector and tranportation zones.Areas reserved for federal, regional and municipal buildings.I have a bunch of raster maps from a general plan of a city.
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