# Source code for tecplot.annotation.georeference

    from ..tecutil import _tecutil
    from ..exception import *
    from .. import tecutil
    from . import annotation

    class GeoreferencedImage(annotation.Annotation):
        """A Geographic reference image.

        A georeferenced can be added to a plot with a call to
        `Frame.add_georeferenced_image()`. Placement of the image is controlled by
        the :math:`(x, y)` variables of the `Frame` and the `GeoreferencedImage`
        object's :math:`z` parameter.
        """
        @property
        def z(self):
            """`float`: :math:`z`-position of the georeferenced image.

            This is the :math:`z` position (typically elevation) of the
            georeferenced image with respect to the :math:`(x, y, z)` variables set
            in the `Frame`. Example usage::

                >>> georefimg.z = 100
            """
            with self.frame.activated():
                pos = _tecutil.GeomGetAnchorPos(self.uid)
                return tecutil.XYZPosition(*pos).z

        @z.setter
        @tecutil.lock()
        def z(self, value):
            with self.frame.activated():
                _tecutil.GeomSetAnchorPos(self.uid, 0, 0, float(value))