New answers tagged visibility
Check if the shapefile's spatial index is stale or corrupt. Based on this technical article from ESRI, the shapefile's spatial index maybe corrupted. The technical article offers a solution that may help you solve the problem. Please have a look at it. Another option is to try to export your data to a new shapefile, and see if that solve your problem.
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 ...
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