[GRASS-user] Dissolve polygones from layer1 witch intersect with polygones of layer2

[Markus Metz]

On Mon, Nov 28, 2016 at 3:37 PM, Mounirsky <kaizersozy at gmail.com> wrote:
>
> I want to dissolve polygons from layer1 witch overlap with polygons of
layer2
> keeping attributes table of layer1 and using command line.
>
> What I've done :
>
> v.in.ogr -o input=original_plygons output=layer1
>
> v.in.ogr -o input=plygons_to_add output=layer2
>
> v.patch -a input=layer2 output=layer1
>
> (v.dissolve input=layer1 output=dissolved column=??? )
>
> the problem is to dissolve you should chose a column ! and after the patch
> (merge) the overlapping polygons of layer2 doesn't have a common same
value
> to dissolve them correctly...
>
> Can you please help me to solve this problem ?

You could use v.select to select those polygons from vector 1 that overlap
with polygons from vector 2, the dissolve the selected polygons.

Markus M
>
>
>
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