New answers tagged

1

Looking at your model it appears you have accepted default naming. I'm guessing that one viewshed that is created is always the viewshed for the very last row in your input table? I guessing that the model runs for a long time but creates a single output? The reason this is happening is that you are not changing the name of the output of the Viewshed tool, ...


2

The sky-view factor (SVF) is defined by the part of the visible sky (Ω) above a certain observation point as seen from a two-dimensional representation (see figure a). The algorithm computes the vertical elevation angle of the horizon γi in n (eight are presented here) directions to the specified radius R (b). Sky-view factor has been proposed to overcome ...


0

The units for the EPSG:3857 projection is not meters but degrees: https://en.wikipedia.org/wiki/Web_Mercator So if you input 100 as the viewshed radius in degrees the radius in kilometers could be up to 100*111km (111km is what a degree corresponds to at the equator. This value will diminish as you move toward either pole, but chances are it will be very ...



Top 50 recent answers are included