GeoJSON.NET with Google Maps in ASP.NET MVC
I am trying to create and load geoJSON data in Google Maps using GeoJSON.NET library using ASP.NET MVC5, although I am doing something wrong.
Using the example code posted on the GitHub site, my controller looks like this:
public ActionResult GetGeoJson()
{
var point = new GeoJSON.Net.Geometry.Point(
new GeoJSON.Net.Geometry.GeographicPosition(45.79012, 15.94107));
var featureProperties = new Dictionary<string, object> { {"Name", "Foo"} };
var model = new GeoJSON.Net.Feature.Feature(point, featureProperties);
var serializedData = JsonConvert.SerializeObject(model, Formatting.Indented,
new JsonSerializerSettings
{
ContractResolver = new CamelCasePropertyNamesContractResolver(),
NullValueHandling = NullValueHandling.Ignore
});
return Json(serializedData, JsonRequestBehavior.AllowGet);
}
And my view looks like this:
@{
ViewBag.Title = "Map";
}
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?key=foobar"></script>
<script src="~/Scripts/jquery-1.10.2.min.js"></script>
<script type="text/javascript">
function initialize() {
var centerPoint = new google.maps.LatLng(53.710921, -1.626776);
var mapOptions = {
center: centerPoint,
zoom: 12
};
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
map.data.loadGeoJson('/Home/GetGeoJson');
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
<div id="map-canvas">
</div>
When I load the page and check the console in chrome I have the following error:
Uncaught InvalidValueError: not a function or FeatureCollection
If I go to my browser action, it outputs the following:
"{\r\n \"geometry\":
{\r\n \"coordinates\": [\r\n 15.94107,\r\n 45.79012\r\n ],
\r\n \"type\": \"Point\"\r\n },
\r\n \"properties\": {\r\n \"name\": \"Foo\"\r\n },
\r\n \"type\": \"Feature\"\r\n}"
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