Add possibility to specify overhang.

[nikipore]

Is your feature request related to a problem? Please describe. On my terrace the blinds always close too early because above the windows there is an overhang of about 1.2m.

Describe the solution you'd like I'd like to specify an overhang in meters above a window.

Describe alternatives you've considered I've tried to specify a negative depth on the floor as a workaround, but to no avail. I also thought about specifying a maximal elevation as this sketch (taken from this article) suggests, but it is not true that only the elevation is relevant – without having sketched it, I am pretty sure that the depth on the floor should contain cos ϕ as a factor, where ϕ is the difference of the azimuth angles of the window's normal and the sun. The sketch is only correct for ϕ=0.

Additional context N/A

[luuuis]

I'm currently having the opposite problem, the roller shutters stay closed far beyond the point when there is sun in the window because of the overhang: when the sun is at its highest it does not hit the window. This is a common design in sunnier climates.

Are there any plans to build this in as "max elevation"? If not, would you consider a pull request?