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I have been asked to generate a map for an emergency planning exercise. There is no data as such but essentially I need to generate a file to be printed out which shows smoke/fumes over a small area from a certain point. It's outside of what I normally do and I wondered if anyone had any visual examples and/or suggestions about how best to achieve it and make it look visually correct (or just appealing). I could just display a polygon over the area and shade it but just wondered if there is a better solution.Many thanksMartin