Hello!
I've been working with City Engine over the past several months to learn how it might be used for a very specific application. I am working on finding a method for developing a "visibility map" of a road surface from several cameras within a scene. The Interactive Analysis Viewshed tool is very close to doing this, because it shows the "cumulative visibility" (as I'm calling it) of all the cameras within the scene. For instance, it shows which areas are covered once by a camera network (green), which areas are covered by 1+ cameras (yellow), and what areas are not visible to any cameras (red). I've included a sample image below of the Viewshed tool with several cameras in the scene.
1) My problem is that I cannot use the camera coverage data quite as I would like to be able to use it. I would like to export the camera coverage of the road surface (could be a flattened, simplified version of a road surface) as something like a DEM (with camera coverage data included).
2) Another possibility might be to export the percent coverage of a specific road surface "polygon" for a given set of cameras. The Viewshed "Visibility by Layer" tool seems able to do this for a single camera, but not for all the combined cameras within a scene. This might be more simple than the idea outlined in "1)" above because the output would just be the percent coverage instead of some sort of layer file (as specified in "1)" above).
Please let me know if you have any thoughts regarding this issue. I thank you for any recommendations you might have.
Thank you,
Chris C
