Hi All,<br><br>with the new JOSM creating landuse areas e.g. residential is not very comfortable. While I assume that will be enhanced sooner or later, I'd like to share an idea.<br><br>My general assumption is that many areas end at ways. For example industrial and residential areas are often separated by streets, as are residential areas and forests. In the old api I liked to re-use segments for getting clean areas which were abutting also in the biggest zoom level. Commercial navi system maps seem to do the same.
<br><br>My proposal is to have an area selection function in JOSM and potlatch. In the area mode any click selects an area that is surrounded by ways. ALT+Click adds another area to selection, ctrl+click takes reduces the selected area from selection. Areas can be merged and split. A selection takes the smallest possible area of tagged and untagged ways around the clicked spot.
<br><br>This can be done without changing the data structure, if the renderer and groups of ways are aware of the direction. If, for example, an area contains one way that has the wrong direction, it gets a reverse bit in the group that builds the area. This would also övercome the issue that many ways have to be doubled, because their direction does not fit into an intended area.
<br><br>With this suggestion it should be much easier to set the right landuse tags. It would be even easy to tag every single peace of the map with very few additional ways. This would be a great advantage to commercial maps which usually have many spaces where the map is simply white. I believe we could make it better and tag any white space into something useful, as farmland, fields, grass or whatever. It just needs a practical way of doing it. What do you think?
<br><br>Archimedeus<br><br><br>