On Feb 20, 5:10 pm, Philip <[email protected]> wrote:
> I finally wrote my own MercatorProjection, but I suspect that the V3
> code doesn't use it.
>
> To see a demo of the resulting day/night shading on a map see:
>
> http://pskreporter.info/grid/test.html
>
> Note that the shading is calculated locally and is for the current
> time (and auto-updates -- currently every 10 seconds for demo
> purposes, but in real life, probably once per minute). Unfortunately,
> it doesn't work in IE owing to the lack of a canvas object. The
> explorer canvas project doesn't help as they don't support one of the
> canvas methods that I need. Anyway, it works in a modern firefox and
> chrome.
>
> No image tiles were used!
>
> Philip

You might consider a simple OverlayView to improve performance.  You
can manipulate all tiles in a single "idle" event rather than one
event occurance per tile.  You can also reposition existing "out of
view" tiles rather than acquire / release tiles through the API.  In
my experience, the only useful information provided by "getProjection"
is the x offset & y offset to translate from world coordinates to
container coordinates.

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