![]() Sometimes, just the outline is good enough for now. ![]() I personally avoid adding heights to buildings that will not render nicely in 3D with a square top. Anyone who relies on the public data in some counties' GIS records may find that little fact useful when adding building heights. DĪlso, some county property records get a height of buildings on file. I'm keeping the amount of money I spend on MapMaker as low as I can until I see a check back from it. This is the most sane approach I've devised short of going to the building myself with a tape measure or actual professional measurement systems that likely cost hundreds. Typical heights I've found are 15', 25', 125', and the occasional 22' and 27' in the US. If it's within 2' of a heightĭivisible by 5, I typically round to the nearest 5 or 0, or what seems like a reasonable number for this building. (very few buildings have a height divisible by 7), and use that toĬalculate a rough estimate of the height. ![]() I just count the squares, and guesstimate the remainder on the last bit Stack 'em up! Don't be afraid to leave a fingerprint on your monitor once in awhile. Anyone who's tried to measureĪnything 2+ feet tall with a 1 foot ruler will know the approach to View by number of squares in street view. There, it's just a matter of counting how tall the building is in street Thanks to this little observation, that tells me that square is ~7' tall. 98% of the time, that square has been the exact same height as the doorįunny enough, I think I picked a door in that 2% range to use as an example. Place that square plane that the cursor makes against a building with a doorway. ![]() That square inside the orange box appears when the cursor is pushed to a wall in street view Sometimes the street view is smart enough to place it against the building wall if it's close enough. In street view, when you move the zoom cursor out far enough, it sets itself against an invisible wall. There's maybe a 1 or 2 inch variance, but when you're talking building heights, I doubt we're gonna care about a few inches here and there. It looks to be ~7' tall after measuring in person around my office and apartment. I took the time to determine how tall a typical doorframe is on or in a building. A notable trend is crowdsourced street view imagery, facilitated by services such as Mapillary and KartaView, in some cases furthering geographical coverage and temporal granularity, at a permissive licence.Oh, I actually have a way of figuring out heights on buildings that's been pretty accurate with around a 2-3' variance when I actually do find a number later on. The main findings are that: (i) street view imagery is now clearly an entrenched component of urban analytics and GIScience (ii) most of the research relies on data from Google Street View and (iii) it is used across myriads of domains with numerous applications – ranging from analysing vegetation and transportation to health and socio-economic studies. We screened more than 600 recent papers to provide a comprehensive systematic review of the state of the art of how street-level imagery is currently used in studies pertaining to the built environment. Such surge has been mainly catalysed by the proliferation of large-scale imagery platforms, advances in computer vision and machine learning, and availability of computing resources. Street view imagery has rapidly ascended as an important data source for geospatial data collection and urban analytics, deriving insights and supporting informed decisions.
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