Hi, This is the plugin I was referring to. I don’t see it in the current plugins (experimental turned on) so I figured it’s QGIS 2 only.
https://github.com/ArMoraer/QGISMergeLines Nicolas Cadieux https://gitlab.com/njacadieux > Le 30 août 2021 à 06:56, Nicolas Cadieux <njacadieux.git...@gmail.com> a > écrit : > > Hi, > > Thanks for the info. There was also a line_merge (or merge line) plugin. > The problem with the function that you are indicating is that it take a > single Multilinestring and create a simple linestring if the ends are > connected. What I am looking for is a way to select a file made of simple > linestrings and to merged them into a single multilinestring if they share a > node or share and object that shares a node. So, for example, if you had two > cities separated by a river (and there was no way to cross the river), all > the roads would be merged in two objects, one for each city. > > This post explains what I would like. It offer a QGIS 2 script that could > help. > https://gis.stackexchange.com/questions/198317/join-merge-lines-that-touch-and-intersect-in-qgis > > I will share a file with and example of what I am looking for. > > Nicolas Cadieux > https://gitlab.com/njacadieux > >>> Le 29 août 2021 à 17:12, Andrea Giudiceandrea <andreaer...@libero.it> a >>> écrit : >>> >> >>> >>> Nicolas Cadieux Sun, 29 Aug 2021 08:18:08 -0700 >> >>> I did see a merge function but did not find the line_merge plugin in the >>> repository. >> >> Hi Nicolas, >> "line_merge" is not a plugin. It is a function available in QGIS expression >> / field calculator: >> >> 14.3.13.53. line_merge >> Returns a LineString or MultiLineString geometry, where any connected >> LineStrings from the input geometry have been merged into a single >> linestring. This function will return NULL if passed a geometry which is not >> a LineString/MultiLineString. >> https://docs.qgis.org/3.16/en/docs/user_manual/working_with_vector/functions_list.html#line-merge >> >> Regards. >> >> Andrea Giudiceandrea >> _______________________________________________ >> Qgis-user mailing list >> Qgis-user@lists.osgeo.org >> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user >> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
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