Hi - was hoping that someone could assist me with a projection problem
that i am experiencing in GMaps. We are using OpenZoom (open source
DeepZoom project) to overlay custom maps onto the GMaps landscape and
to then allow users to dynamically adjust the opacity etc.

I am exporting these maps with lat/lon projection, datum WGS84, as far
as I can make out this is the projection system used by GMaps.

The problem that I am having is that when out output these maps (using
GlobalMapper and recording NE and SW coords), the aspect ratio of the
output image is different to the ratio of the image once it is
projected onto the GMaps base map (the ouput image is more square
while projected onto GMaps it appears more rectangular). With a single
flat map image this still works since GMaps 'stretches' my image
according to the input coords and all line up fine. The problem is
that we are using DeepZoom, the folder structure of which does not
allow us to stretch/scale the various contained images.
So things dont line up correctly...

Was hoping that somebody may have some experience of this or be able
to suggest a way of unifying these aspect ratios (seems like a
projection issue to me) such that DeepZoom slices images at the
desired ratio dimensions?

Any help would be greatly appreciated...

Many thanks, Michael

- example image located at:

http://google-maps-api.googlegroups.com/web/%24RTEKIQP.jpg?gsc=dENfpSMAAABP1K1bHSy3-MuQj33rdKBxaLTyIcTtmVd9JjoP0kZTLK0IoyLhPG2x5smOr2otMGI

where the aerial photo represents the image ratio output from
GlobalMapper and the red rectangle the same image with ratio as
projected in GMaps -

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