Comment 1 for bug 918283

Lars, regardless the approach (computing the hazard in a grid or reading the sites from the exposure model), a user must always provide the coordinates of a polygon. Even if I'm using the location of the assets, I might want to consider only the assets within a certain region. An example could be, say I have the Switzerland exposure model, and I want to run calculations considering the location of each asset only within a polygon that defines the administrative limits of zurich.