I have done something like this:

`Function checkOverlap(thisRectangle, otherRectangle):
    if thisRectangle.UpperRight.Longitude < otherRectangle.LowerLeft.Longitude
        return false
    if thisRectangle.LowerLeft.Longitude > otherRectangle.UpperRight.Longitude
        return false
    if thisRectangle.UpperRight.Latitude < otherRectangle.LowerLeft.Latitude
        return false
    if thisRectangle.LowerLeft.Latitude > otherRectangle.UpperRight.Latitude
        return false
    return true`

But I also have to deal with the international date-line. Any suggestions to how to account for this?

I was thinking something along the lines:

`Function CrossesDateLine(lowerLeft, upperRight):
    If lowerLeft.Longitude < 0 AND upperRight.Longitude > 0:
        Swap lowerLeft and upperRight
        newUpper = NormalizeLongitude(upperRight)
        Return (lowerLeft.Longitude, newUpper)
    Else:
        Return (lowerLeft.Longitude, upperRight.Longitude)
    End If
End Function

Function NormalizeLongitude(coordinate):
    Return coordinate.Longitude + 360
End Function`

The reason for this is, in a situation where we have a coordinate with 170 and another -170 and wanted to make a bounding box, then -170 would be lowerleft and 170 upperright, even though it should actually be the other way around – and our intersection checks would fail.

Anyone has any suggestion? Not sure about mine