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I'm using QGIS. The function r.fill.dir is not working on a few DEMs I'm working with. With other DEMs, it works. I attached the log report and one of the troublesome DEMs. You can see my QGIS specifications on the header lines of log report.

Checking a successful log report I detected the problem starts after the line:

C:\Users\ramoslem\Documents>r.fill.dir input=rast_61e9d7802b7e846 ...(it continues)

After this line, the successful one prints: Reading input elevation raster map... This is missing with the problematic DEMs. See below snippets of the logs. I italicized the last line where both trials are the same.

Not successful case log portion

Importing raster map <rast_61e9d8c403a2f47>...

0..3..6..9..12..15..18..21..24..27..30..33..36..39..42..45..48..51..54..57..60..63..66..69..72..75..78..81..84..87..90..93..96..99..100

C:\Users\ramoslem\Documents>g.region n=45.375885 s=45.249075 e=-72.49909500000001 w=-72.750915 res=8.999999999999823e-05

C:\Users\ramoslem\Documents>r.fill.dir input=rast_61e9d8c403a2f47 format="grass" output=output91ca3ed354994c30b9f661dddf49e5e9 direction=direction91ca3ed354994c30b9f661dddf49e5e9 areas=areas91ca3ed354994c30b9f661dddf49e5e9 --overwrite

C:\Users\ramoslem\Documents>g.region raster=output91ca3ed354994c30b9f661dddf49e5e9

ERROR: Raster map <output91ca3ed354994c30b9f661dddf49e5e9 not found

Succesful case log portion

Importing raster map <rast_61e9d7802b7e846>...

0..3..6..9..12..15..18..21..24..27..30..33..36..39..42..45..48..51..54..57..60..63..66..69..72..75..78..81..84..87..90..93..96..99..100

C:\Users\ramoslem\Documents>g.region n=45.500895 s=45.374085 e=-72.749115 w=-73.000935 res=8.999999999999823e-05

C:\Users\ramoslem\Documents>r.fill.dir input=rast_61e9d7802b7e846 format="grass" output=outputd4c609e519f242b7b70cf0bad02bd5c9 direction=directiond4c609e519f242b7b70cf0bad02bd5c9 areas=areasd4c609e519f242b7b70cf0bad02bd5c9 --overwrite

Reading input elevation raster map...

0..3..6..9..12..15..18..21..24..27..30..33..36..39..42..45..48..51..54..57..60..63..66..69..72..75..78..81..84..87..90..93..96..99..100

Filling sinks...

Determining flow directions for ambiguous cases...

Found 248 unresolved areas

Repeat to get the final directions...

Found 31 unresolved areas

Writing output raster maps...

0..6..12..18..24..30..36..42..48..54..60..66..72..78..84..90..96..100

C:\Users\ramoslem\Documents>g.region raster=outputd4c609e519f242b7b70cf0bad02bd5c9

I haven't overcome this. Any comment?

The supporting files (log and DEM) are here.

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  • Both error and success messages should be text, in the body of the question. This makes them legible on all devices and allows others to search for your issue.
    – Vince
    Jan 21, 2022 at 0:45
  • Done it, Vince. Thanks. Jan 21, 2022 at 2:00
  • Can you share the "problematic" DEM?
    – Micha
    Jan 23, 2022 at 9:19
  • I provided the link to both the DEM and the log. Jan 23, 2022 at 21:03

1 Answer 1

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I have downloaded your DEM file and opened it in QGIS 3.22. Then I ran r.fill.dir on it (setting as the input region the full map).

The result looks like this - no error appeared:

Result of r.fill.dir run on DEM

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  • I installed QGIS 3.22.1 on a different PC. It didn't work for me; same errors. Jan 25, 2022 at 20:09

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