Recently have been mapping a few building near Minot using Bing imagery. The buildings tool of JOSM has been really helpful in mapping them. It took me around 2.5-3hrs to map ~438 buildings.

Map View

---

I would like to share a few simple shortcuts which can be helpful for beginners:

• B - Enabling Building Plugin
• X - Extrusions and Intrusions
• I - Select connected buildings
• Shift + J - Merge the connected buildings to one
• Shift + C - Curved way ( Need to have a 3 point way)
• Shift + O - Circular way ( Need to have a 2 point way)
• O - Makes the way Circular
• C - Combine ways
• Shift + Option - Rotate the object
• Ctrl + Option - Slanting height when used while extrusions
• Cmd + C - Copy buildings
• Cmd + V - Paste Buildings

(Copy and paste buildings is only helpful when the building are similar is shape and size.)

One can always present the data contributed by designing their own map using Mapbox Studio and publish for other users as well. For other data visualizations Mapbox GL JS is a great start.