I've been using the 'Vector geometry--> Voronoi ploygons'function in QGIS to create voronoi cells for 200,000 points with success. However, recently I am working with a bigger point set (500,000 points randomly generated into a polygon repreesenting 1000km2) and the function consistently freezes without error at 99%.
I have tried outputting both to a temporary file (memory) and to a package file, but both still freeze at 99%.
Each point has coordinates and several attributes, so I thought perhaps the file was just too large for QGIS. I have tried running again with only the coordinates, but it still hangs at 99%.
Can anyone advise?