[Qgis-user] Problems with the tool: join by attributes

2019-09-17 Per discussione Jennifer Schubert
Hi, I want to spatially join points with individual values to a polygon grid. The resulting shapefile should have a column where the values oft the points are summed up - according to the grid cell they are found in. This simple operation works fine in QGIS 2.18 where you can click "sum" as the

[Qgis-user] Problems with the tool intersect

2019-09-12 Per discussione Jennifer Schubert
Hello Gis-user: I have two shapefiles, one is a grid made from polylines, the other consists of polylines. I want to cut the polylines of the second shapefile with the grid via the tool intersect. (I did it successfully before). Unfortunately, the resulting layer is empty. I checked that the