[GRASS-user] mask "around" a linear feature

[Robert Kuszinger]

Dear Micha,


thanks, really, I'll check it. I totally forget to check the addons
collection...


regards
Robert


2017-07-19 11:56 GMT+02:00 Micha Silver <tsvibar at gmail.com>:

>
>
> On 07/19/2017 11:57 AM, Robert Kuszinger wrote:
>
>
>
> Hello!
>
> We have a linear feature of ~60km which is a future path of a road having
> ~400m in size and being quite curved.
>
>
> I'd like to create a mask for raster operations that fits this shape.
> Hull creates a convex shape which is hice but still have many "empty"
> space involved. This is sparse lidar data, anyway.
>
> Is there a techique to create such a raster mask/map?
>
> Pure rasterization won't work since it has holes (see also vectorized
> coverage at 10m resolution, zoomed into a "hole".
>
> I'd need something like a *"concave hull"* function :)
>
> Hope about the addon:
> https://grasswiki.osgeo.org/wiki/AddOns/GRASS7/vector#v.concave.hull
>
>
> thanks
> Robert
>
>
>
> [image: Szövegközi kép 3][image: Szövegközi kép 2]
>
>
> _______________________________________________
> grass-user mailing listgrass-user at lists.osgeo.orghttps://lists.osgeo.org/mailman/listinfo/grass-user
>
>
> --
> Micha Silver
> cell: +972-523-665918
>
>
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