Christmas Bird Count history report system

The purpose of this static method is to build the name of the anchor (id value) for a primary index entry. The result is a string consisting of ANCHOR_PREFIX followed by the circle's lat-lon key as computed by Section 53, “latLonKey(): Generate the lat-lon key for a given circle”.

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def anchorName(circle):
    '''Generate the anchor (id) value for a given circle's center.
    '''
    return ANCHOR_PREFIX+latLonKey(circle)