Listers,
I've got a couple of questions relating to buffers and the way MI calculates
their area.
1. MI seems to approximate circular buffers with multi-sided polygons. Can
it not just draw a circular buffer?
2. I've got a table of buffers whose native projection/datum is Lat/Long
NAD83. I changed the projection of the map window using
Map>Options>Projection to State Plane NAD27. Then, when I try to update a
column in the buffer table using CartesianArea(obj, "sq ft") it returns a
value of -1 in all instances. Is this a bug or "correct MI behaviour"? Do I
have to Save Copy As to a "cartesian" projection?
TIA,
_____________________________
Tim Warman
Groundwater Geologist/GIS Guy
Richard C. Slade & Associates LLC
North Hollywood, CA, USA
+1 (818) 506 0418
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