coords.py 文件源码

def required(ob):
    """Return an object that meets Shapely requirements for self-owned
    C-continguous data, copying if necessary, or just return the original
    object."""
    if has_numpy and hasattr(ob, '__array_interface__'):
        return numpy.require(ob, numpy.float64, ["C", "OWNDATA"])
    else:
        return ob