[Tagging] Quick Building tracing question...

John Willis johnw at mac.com
Thu Jan 10 03:21:58 UTC 2019

Most of my imagery is at an angle, so I have to be careful to map the building footprint, but this also means I can easily see the roof overhang on most buildings, so it is easy for me to map most of them. 

If it was directly overhead, most of them are cantilevered roofs with very thick supports that are easy to spot protruding from the actual warehouse wall, so spotting the “roof” on most of these warehouses is pretty easy. 


> On Jan 10, 2019, at 11:54 AM, Graeme Fitzpatrick <graemefitz1 at gmail.com> wrote:
> as it's impossible to tell from an overhead image what is enclosed building

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