What is a figure ground map?
A plan that shows buildings as solid, usually black, and all unbuilt space as white. Leaving out names, colours and topography makes the urban grain, the block size and the shape of public space easy to read and to compare between places. In German it is called a Schwarzplan.
Is it the same as a Nolli map?
Giambattista Nolli’s 1748 plan of Rome is the famous ancestor of the figure–ground, and it also showed the interiors of churches and public buildings as open space. MapToNap draws footprints from OpenStreetMap, so those interiors stay solid. For a true Nolli reading, export the SVG and cut them out by hand.
Is the figure ground map generator free?
Yes. Urban Fabric is one of the four analyses in the free version, together with Roads & Streets, Functional Areas and Green & Water. Free exports carry a MapToNap watermark; Pro removes it and unlocks the rest of the 2D site analysis set.
Can I open it in CAD?
There is no direct DXF export for site diagrams. Export the SVG and convert it to DXF in Illustrator or Inkscape, or place the vector PDF in your layout software.
How accurate is it?
It is as complete as OpenStreetMap is in that place. Coverage is excellent in most European city centres and good in many cities worldwide, but patchy in others, including parts of China and many smaller towns. Check against an aerial photo before relying on it. If there is no data at all, the drawing is labelled SCHEMATIC instead of being filled with invented geometry.
What size of area can I map?
Any radius from 200 m to 3 km around the point you pick. Around 500 m suits a single urban block and its neighbours; 1 to 2 km shows the structure of a whole district.