Hi Ron,
In your code you correctly call fromContainerPixelToLatLng on the
MapCanvasProjection object:
alert('fromContainerPixelToLatLng
'+proj.fromContainerPixelToLatLng(tp));
But, you are trying to access fromLatLngToContainerPixel on the
overlay itself:
if (overlay.fromLatLngToContainerPixel) {
alert('fromLatLngToContainerPixel
'+overlay.fromLatLngToContainerPixel(latlng1));
}
As noted in the reference (and as you've printed on your page), both
fromContainerPixelToLatLng and fromLatLngToContainerPixel are defined
on the MapCanvasProjection object.
http://code.google.com/apis/maps/documentation/javascript/reference.html#MapCanvasProjection
-Susannah
On Sep 3, 11:09 am, Ron <[email protected]> wrote:
> Insanity!
>
> Per the V3 API reference docs, I've created an object that inherits
> from OverlayView, constructed an instance of it, set the map instance,
> waited until darw() has been called, then obtained the
> MapCanvasProjection object from it.
>
> I can then successfully call the getWorldWidth(), and both of the
> from*ToLatLang() methods, but calls to either of the fromLatLangTo*()
> functions give "blah is not a function".
>
> Worse, introspecting the projection object suggests that it DOES has
> both fromLatLangToDivPixel and fromLatLangToContainerPixel
> functions!
>
> I've placed a demo of this problem online at:
>
> http://metadata.net/gm/gmv3t1.html
>
> It's test code, but clean enough to read. After the map displays,
> click on the "Show Projection structure and call functions" link under
> the map. The introspected projection object will be displayed below
> tha map, and all of the object's functions called with results
> displayed in alerts.
>
> Any clues to the cause of the problem greatly appreciated!!
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