Anybody know of an easy way to draw partially filled polygons?
I'm working on a visual flow model for water district and need to show changing storage status of multiple reservoirs (both surface and groundwater). Each has a maximum capacity that would be represented by the full polygon. As the model goes into action and water gets drawn down, I'd like to represent current storage in each reservoir as a fill percentage of its full shape. Looking for an easy way to do this and not finding anything like it in the docs. Any ideas?
Thanks!
Mike
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