Looks like the second option was the right on. https://gis.stackexchange.com/questions/323376/adding-location-of-start-and-end-points-to-the-attribute-table/323377#323377
Nicolas Cadieux https://gitlab.com/njacadieux > Le 13 mai 2021 à 10:52, Nicolas Cadieux <[email protected]> a écrit > : > > 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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