Hello all,
Complete beginner here. Any help or pointers very welcome.
I've trying to create a DEM for the Yorkshire Dales National Park in the UK (I know I can download extant DEMs!).
I've downloaded the OS Open Zoomstack (Geopackage), and added a contour layer to my map.
Questions:
- I don't seem to be able to select a rectangle of contours - is this possible, or will the full extent of each contour always be selected?
- When I use Topo to Raster to create a DEM on any selection of contour data I get the error ERROR 010092: Invalid output extent. If I run T2R on the whole contour layer it works (but takes 4 hours and melts my laptop).
I've Googled and spent over an hour looking and experimenting but can't make progress.
Thanks for your help!