image and elevation model
toolbox -> viewshed analysis -> select image and elevation model
enter view range and height
mark camera location
camera coverage is displayed. double click on camera in view sources to modify individual
change annotation to polyline, view range to 5000m, view height to 100, point spacing to 10
draw a polyline, right click -> accept
enable show point spacing, points are shown along polyline with 10 pixels spacing
viewshed is calculated
draw a polygon around building
adjust view range, height, spacing
viewshed calculated
reference:
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