Hi, I have some point data which I would like to convert into linestrings. Points are ordered correctly in the file but they have also useful IDs. I don't find a readymade tool for this task but I have a feeling that it should not be so hard to do with a little beanshell script. This might suit even as an option for the Convert Selected Geometries/Layers tool as Points->LineString but I know from practice that it is rather uncommon that point layers are properly ordered.
This is how I do it with SQL and Spatialite select makeline(a.geometry) from (select id,geometry from track_points_geometries order by id) a; -Jukka Rahkonen-
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