[Qgis-user] How can I define the space between lines in a hatched fill pattern?

I am using hatched fill patterns for some polygons in a map. The hatch looks okay in the map composition. But in the exported jpeg file, the hatch lines are so close to each other, the fill looks like a shade of grey. It is difficult to distinguish the horizontal, vertical and diagonal hatches. Is

[Qgis-user] Problem with Voronoi diagrams

Several years ago I tried to generate Voronoi polygons around a number of points. I think I was using QGIS version 2.10. The result was not satisfactory (Nearest Distance interpolation in raster gave better results). There was one polygon with no generator point in it while an adjacent polygon had

[Qgis-user] Problem with GDAL tools

I am facing a number of problems with version 2.18 that did not occur with earlier versions. When I tried to use the proximity (raster distance) tool, it gave the following error message: <> Trying to rasterize a point shapefile generated the following error message: <<"ERROR 6: At least one of