Does the map have to be a GeoTiff? #39
Description
User query:
I use QGIS to crop my study area (extraction of bathymetic data from a larger map). The GeoTIF export from QGIS dont provide the min and max values in the format that your map from dat_gebco() does (even after converting it to spatraster). As I had some problems with this I exported the raster from QGIS as an R Raster. When the "source" of my map file was in this format ("map.grd") i got an error message when running the forward filter ("nested task error: MethodError: Cannot convert an object of type Missing to an object of type Float64" ). When in converted the source file to a .tif every thing worked fine. So it then looks like the raster needs to have .TIF as the source file(?)