I have a 3000 mile long line that has quite a few gps errors where the line self intersects itself. Mapshaper does the best job of all the tools identifying these intersections on import, QGIS's intersections tool does not identify them.
I can't find anything in the commands or documentation of how or where it stores the points it identifies as these intersections. I would like to export the points to be able to fix the errors. Fixing them in mapshaper causes to much simplification to the line itself in other areas.