Determining the include angle after viewshed

[JeffVan_Etten]

I am trying to work out the best method for determining the include angle after running the viewshed tool.  Basically, I want to work out the angle of visibility from where there viewshed said my points were visible back to where the points are.  I have seen this done in other software packages (mainly dealing with wind farms).  Any thoughts or suggestions?

Thanks
Jeff

[EricRice]

Jeff,

So you want some attribute per visible cell that would tell you the angle threshold for visible/not visible from a given set of points?

Eric

[JeffVan_Etten]

Eric

Well I imagine that this is an attribute value that measures the angle of a set of points that are visible.  There is a correlation to proximity and also the number of points visible.  i.e. 1 point visible might only have a 0 - 5 degree included angle, but where more than 10 are visible might be > 45 degress included angle.  Hope that makes sense.

I am attaching an example of this.  [ATTACH=CONFIG]8892[/ATTACH]