Carl von Einem wrote > In pre desaster Bing imagery of Nepal I have seen several of those > "shape of roof, but no shadow" but usually interpret them in a different > way: let's assume the house has been built against a hillside, then the > midday sun would be shining at the front of the house and the back of > the house is "leaning" against the hill. No shadow if the roof is rather > flat.
Agree, but if in the close surroundings I see some elements (trees) with projected shadow, I assume I have a collapsed building. I don't know how tall trees are, just approximate 5-10meters for a 5-10meters canopy, which IMO can be compared to 3-5meter height of a rural building. Anyway I make just assumpions. Of course, if you are exeprienced in photogrammetry I'll take care of your suggestions. ----- -- cascafico.altervista.org twitter.com/cascafico -- View this message in context: http://gis.19327.n5.nabble.com/Request-for-information-about-common-set-of-tags-for-HOT-Was-OSM-Nepal-Reponse-Links-to-various-info-tp5844927p5845258.html Sent from the Humanitarian OpenStreetMap (HOT) mailing list archive at Nabble.com. _______________________________________________ HOT mailing list [email protected] https://lists.openstreetmap.org/listinfo/hot
