Is it possible, doing a visibility analysis (viewshed) in QGIS, to set a vertical angle of search from the observer points?
In ArcGIS Pro viewshed, there are the
vertical upper angle and
vertical lower angle parameters. In Global Mapper viewshed, it is possible to set angles in the tool dialog, 'Receiver Elevation' section.
I am aware about the
target_elevation parameter (which is the one I am currently using), but it is a different (substitute or complementary) method from setting a vertical angle range from the observer view.