On Sep 10, 1:07 pm, "[EMAIL PROTECTED]"
<[EMAIL PROTECTED]> wrote:
> I have the same problem by calculating hotspot positions on the my map
> canvas.
>
> for example if i use an 100x100px image with center of 53.112000,
> 6.992000 with span of 0.0040.
> i thought top left corner was (center - (span/2)) in both directions
> and bottom right was (center + (span/2))
>
> this is not right? too bad :(
>
> i know an exception is if the image was NOT 1:1 (100x100)...
> if image is 240x320 the span is 240(100%, 0.0040) x 320(133.3%,
> 0.005332)
>
> so its true what John Coryat says?... its not possible to get the
> "real" coordinates when i use static maps ?
>
> thx a lot
>
> Benjamin
>
> Gaz schrieb:
>
The file:
www.polyarc.us/adjust.js
contains the Mercator projection stuff.
The file:
www.polyarc.us/static
shows it in action with "click" & "mousemove" event handlers. The
function "Parser" digs the (center / size / zoom) parameters out of
the static map URL.
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