a.lng is not a function

[midimid]

Continuing my experience with overlay and projection.

I have a custom overlay class and have made sure that the projection
is retrieved only after onAdd. The projection is placed in a var
available. None of my script runs until onAdd has been called.

Much much later in my scripting I have the following code that is
throwing the error:
Error: a.lng is not a function
Source File: http://maps.gstatic.com/intl/en_us/mapfiles/api-3/0/33/main.js
Line: 33

function setMarkers() {
for (var markerIndex in markers) {
var marker = markers[markerIndex];
var position = marker.getPosition();
var lat = position.lat();
var p1 = proj.fromLatLngToDivPixel(lat);
}
}

Note that I'm not even calling for longitude. If I comment out the var
p1 line, everything works fine. I've also confirmed that proj, lat,
position, and marker are not undefined.

[Chris Apolzon]

Looks like the latLngToDivPixel method takes in a point (a latLng object) so try passing position in instead of lat.

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[Ben Appleton]

Sure, but why do you pass a function called fromLatLngToFoo only a lat?  As the name (and docs) suggests it requires a LatLng.

[midimid]

Stupid logic error on my part - apologies and thanks!