[Qgis-user] Join multiple Linestrings to single Linestring
Richard McDonnell
richard.mcdonnell at opw.ie
Wed Apr 19 01:09:46 PDT 2017
Benjamin,
You could try Dissolve, under Geoprocessing Tools, alternatively you
could try saving the dataset locally as a shapefile, edit using either
of the methods you outlined below, In relation to saving the edits back
to the table as linestring, use the DB Manager tool, select the table
you wish to update, tick the options you want, making sure both *Replace
destination Table (if exists) *and*Create single-part geometries instead
of multi-part* This has worked for me in the past, admittedly for
polygons, but it should also work for linestrings.
Hope this helps,
Richard.
On 18/04/2017 17:24, David J. Bakeman wrote:
> On 04/18/2017 02:17 AM, Fuenfer-Koenigstein.Benjamin at swm.de wrote:
>> Hi there,
>>
>> I want to merge multiple linestrings with same start/endpoint to a single linestring (all lines within one layer). As I use a PostGIS source with geometry type linestring, it is important that the new geometry is still linestring and not multilinestring type. "Merge selected features" tool and "JOIN" in QAD-Plugin both create multilinestrings. Has anyone an idea how to directly merge into linestring or how to change geometry type after merging? Thanks for your suggestions!
> I'm not sure I completely understand what you want but you could run
> multipart to singleparts from the Vector/Geometry Tools menu on the
> multilinestring layer to generate a layer with just linestrings.
>> Best regards
>>
>> Benjamin
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*_Richard McDonnell_*
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*OPW FRM Data Management*
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