[Tagging] Elevation and height on vertical features

Colin Smale colin.smale at xs4all.nl
Thu Jan 7 23:01:52 UTC 2016


On 7 January 2016 23:57:40 CET, Mike Thompson <miketho16 at gmail.com> wrote:
>On Thu, Jan 7, 2016 at 3:40 PM, Colin Smale <colin.smale at xs4all.nl>
>> Cliffs are never truly vertical. A bird's eye view from above will
>> that. If they are steep enough they could be modelled as a line, but
>> general we should allow for a polygon, with a high side and a low
>Actually, sometimes they are "less than vertical", in other words,
>overhanging, e.g. [1]
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