[Qgis-developer] New feature proposal for the Dissolve tool

[Daan Goedkoop]

Hello,

the example on StackExchange seems to do this for the currently
selected features.

It might also be desirable to do this for an entire layer, e.g. join
at all places where exactly two line features are adjacent. (I think
v.build.polylines does this, but apparently it is not available from
QGIS.)

A while ago I created a processing script for this, with (compared to
the StackExchange example) some more configurability and optimization
with a spatial index.

I just don't know, what is the best place to upload a processing
script? As a PR against qgis/QGIS-Processing on github?

Kind regards,
Daan

2017-02-22 10:32 GMT+01:00 Marco Grisolia <marco.grisolia5 at gmail.com>:
> Hi,
> I recently answered to a question on GIS StackExchange [0]. In this
> question, the asker was looking for a way for dissolving features using an
> adjacency criterion instead of using common attribute field (please, follow
> the link below for a better understanding). This feature is already
> available in the analogous ArcGIS tool when the"Create multipart features"
> option is enabled and I think it could be of interest having an additional
> option like this in the "Dissolve" tool main dialog for next releases.
> I never submitted a feature request on the QGIS Project site but, since
> there is already a (very rough) code and a general idea on how to approach
> the issue, I didn't know if this was the case of adding it there. Otherwise,
> let me know if I need to add it on the QGIS Project site (if this is the
> case, I'm sorry for wasting your time).
> Regards,
> Marco
>
>
> [0]
> http://gis.stackexchange.com/questions/228267/merging-adjacent-lines-in-qgis
>
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