I have a very strange problem with
gdal_contour. I have a very large GeoTif of Europe and would like to generate contour-lines for that region. Everything worked fine when I had lines every 25m but now I wanted to do it again and have lines every 10m.
It runs through without any error, but I am missing lines below 500-600m. Some lines until 500m are present, but many aren't. And below 500m I don't have any lines. I already ran it twice to just to make sure if there was a problem at first run, but second run had the same issues. Is there anything I am doing wrong here? Here's my command that I used.
gdal_contour -a height -f PostgreSQL -i 10.0 input "PG:host=localhost user=postgres password=postgres dbname=contours"
I need to have the output in a Postgres DB cause in a later process I would need to simplify some of the lines. So choosing a shapefile wouln't be an option.