set Anchor
Sets the Anchor U and V coordinates of the GeoJsonPoint. The anchor point is specified in the continuous space [0.0, 1.0] x [0.0, 1.0], where (0, 0) is the top-left corner of the image, and (1, 1) is the bottom-right corner. The U &V values are the same U &V values used in anchor ()}.
Parameters
anchor U
Anchor U coordinate of the GeoJsonPoint
anchor V
Anchor V coordinate of the GeoJsonPoint