I need to conduct a visibility analysis that will calculate depths below the viewer's horizon.
QGIS 3.4 > Processing Toolbox > Visibility Analysis > Depth Below Horizon.
- 32-bit floating point, single-band tif
- approximately 27,000 X 17,000 cells
- Point shapefile with 64 records
- Geometry checks ok
Both the input DEM and shapefile are in the same CRS.
Here's a screenshot of the input:
Running the tool results in the following error:
What does the error mean?