[gdal-dev] Polygon operations

Andrew Bell andrew.bell.ia at gmail.com
Sat Jun 19 12:34:24 PDT 2021


These are done in 2D, without regard to the spatial reference.

On Sat, Jun 19, 2021, 11:31 AM Met Bas <Metabaseacc at gmail.com> wrote:

> From my understanding, a square polygon feature would only consists of the
> 5
> vertices of the corners (with the last vertex being the same as the first
> to
> "close" the polygon).
>
> If I do an operation depending on a polygon, for example intersections or
> clipping a raster, how is the path between the vertices determined? Is it
> the great circle route using the ellipsoid of the spatial reference? Can it
> be changed? And is it determined on the fly during each operation?
>
> Thank you,
> M.B
>
>
>
>
>
> --
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