[OSM-talk] protocol for adding buildings using aerial imagery?

[Erin Korris]

Hello:

I am wondering if there is a rule to follow when tracing buildings using aerial 
imagery.  On the default, Yahoo imagery, the buildings are slightly displaced so 
in addition to the roof you can see the foundation of certain sides of the 
building.  Should this be ignored and the building drawn based on the roof?

Thanks


      
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