[OpenLayers-Users] Saving with a Google Maps base layer

[Gregor at HostGIS]

Tom B wrote:
> Has anyone had a chance to try this out?  Gregor, any luck with getting R&D
> funding, by any chance?  If not, I might go ahead and take a crack at it,
> since it is something our map will eventually need.

The customer wasn't up for it when I presented it to him, so I have 
nothing to show on this. Sorry.

The way I figure to render it, would be:

Take image width, divide by 640 rounding up.
Take image height, divide by 640 rounding up.
foreach w in width:
   foreach h in height:
     figure up center latlng (320,320) based on bbox and pixel position
     figure URL
     fetch image
     blit it onto the canvas

I have existing code in the Wiki ("Printing" page) for doing this in 
PHP, using URLs that are provided by the client. That at least shows the 
blitting and alpha code.

-- 
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Greg Allensworth - SysAdmin, Programmer, GIS Person, Security
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