app/views/shared/data/gis/_simple_map.html.erb
<div id="_simple_map_outer">
<div id="_simple_map_form"
data-feature-collection="<%= Gis::GeoJSON.feature_collection(map_objects).to_json -%>"
data-map-center="<%= map_center.nil? ? 'POINT (0.0 0.0)' : map_center -%>"
data-map-canvas="simple_map_canvas"
>
</div>
</div>