Hi,
I use this to calculate the number of acres enclosed by a linestring:
ring = new OpenLayers.Geometry.LinearRing(geometry.getVertices());
area = ring.getGeodesicArea(new OpenLayers.Projection("EPSG:900913"));
area = Math.floor(Math.abs(area*0.000247105381));
The calculated area consistently produces results that are 2-3% too
small. Is this an error in my code or is my data the problem?
Thanks,
Jim White
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