Hi, Create a new field in the field calculator and I would try something like geom_to_wkt(start_point) or geom_to_wkt(start_point($geometry)). I cannot test on my end. end_point should refer to the last node.
Nicolas https://docs.qgis.org/3.16/en/docs/user_manual/working_with_vector/functions_list.html?highlight=start_point#geometry-functions Nicolas Cadieux https://gitlab.com/njacadieux > Le 13 mai 2021 à 10:20, Camilo Aristizabal <[email protected]> a > écrit : > > > Hi Nicolas > > Thank you for your attention. > > I'm going to try the second and third tips you sent me, and I'll inform you. > > But the first one is just that I'm trying to avoid because I need to report > both, the start and the end of coordinates of the lines in the same *.dbf of > the vector line, and not in a second shapefile of points. > > Could you help me to find the correct tool? > > Best regards. > > Camilo Aristizabal > > > Em quarta-feira, 12 de maio de 2021 23:42:31 BRT, Nicolas Cadieux > <[email protected]> escreveu: > > > See below > > Nicolas Cadieux > https://gitlab.com/njacadieux > >> Le 12 mai 2021 à 14:38, Camilo Aristizabal <[email protected]> a >> écrit : >> >> >> Dear all >> >> I'd like to do the next set of edition tasks: >> >> 1) Add XY coordinates at both the start and the end of lines in a shapefile >> (avoiding to create or extract a second point-shape of specific vertices). > > You can extract specific vertices and then use the field calculator to get > the coordinates > > https://docs.qgis.org/3.16/en/docs/user_manual/processing_algs/qgis/vectorgeometry.html#extract-specific-vertices > >> 2) Extract the envelope or to poligonize just the border of a cloud of >> points(shapefile)... Similar to such with which do it from a raster in the >> GDAL Raster Conversion tool. > > This can be done with a concave hull. A better alternative are the boundary > tools in Lastools. > >> 3) Create 'string' or 'text' fields with much more than 4000 characters of >> width inside the shapes, not only 255. > > I you use a file format like geopackage, you will not be limited to 255 like > the shapefiles. > >> >> Could you, guys please, help me to find the right paths? >> >> Thanks! >> >> Camilo Aristizabal >> >> _______________________________________________ >> Qgis-user mailing list >> [email protected] >> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user >> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user >>
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