Listers,

I've written a MapBasic routine that creates buffers around points
(municipal supply water wells) where the size of the buffer represents the
amount of water produced by that well in a given year. This works a lot
better than thematic mapping by symbol point size because you have much
greater control over the size of buffers than of symbols, and you can still
see smaller buffers even when they are completely overlapped by adjacent
larger buffers.

The problem comes when trying to add these buffers to the legend - MI
recognizes them as regions of a single type and draws a single rectangle in
the legend. Does anyone have an idea on how to display these buffers in the
legend in the "customary" way. Scaled circle maps like these typically have
a legend showing either a series of labelled, nested circles, or a single
circle with a scale relating the radius or diameter to the actual value
being mapped.

I'm thinking about giving up on MI's automatic legend creation and just
drawing my own legends in another Map Window, but I'll eagerly await any
suggestions.

TIA, and will sum.
_____________________________
Tim Warman
Geologist & GIS Specialist
Richard C. Slade & Associates
North Hollywood, CA
(818) 506-0418

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