On Mar 22, 11:23 pm, BuckyE <[email protected]> wrote:
> Rather than mucking about with GeoXML, I've decided to just use the
> brute force method of having all markers, polylines and polygons
> created from a standard XML. It works for me. Someone more expert at
> the whole thing needs to work out a routine for handling Garden Shed
> Sized Polygons!

I have not been following the discussion.  Sorry if I am repeating
something someone else has already said.

At very deep zoom levels (18, 19, 20, 21), encoded GPolys suffer
severe rounding errors.  Floating point Lat/Lon coordinates are
converted to integers by truncating to five decimal places of
precision.  Zoom level strings perform point reduction which may
introduce distortion.  Traditional GPolys may improve appearance.

Google seems to be abandoning "fromEncoded" GPolys in its GGeoXml
service.  If a KML file is relatively simple, without "click"
requirements, Google builds a tile layer overlay with its "mapslt"
service, the successor to its "mapsdt" service.  A tile layer overlay
has superior performance to a GPoly.

Parsing a KML file served to the browser through a proxy with a
javascript addon approaching the size of the API itself seems a bit
senseless.

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