This example demonstrates the use of the gmf-permalink service, which is injected inside
the gmf-map directive. The following links demonstrate the different features:
map_x and map_y if those parameters are set, otherwise it is added at the
center of the map.
map_x and map_y if those parameters are set, otherwise it is added at the
center of the map.
This example also demonstrates the use of the
gmfPermalinkOptions to customize the permalink crosshair feature style.