public Distance DistanceBetween(Location location, DistanceUnits units)
{
double num = (units == DistanceUnits.Miles) ? 3956.545 : 6378.2;//3438.147;
double num2 = this.ToRadian(location.Latitude - this.Latitude);
double num3 = this.ToRadian(location.Longitude - this.Longitude);
double d = Math.Pow(Math.Sin(num2 / 2.0), 2.0) + ((Math.Cos(this.ToRadian(this.Latitude)) * Math.Cos(this.ToRadian(location.Latitude))) * Math.Pow(Math.Sin(num3 / 2.0), 2.0));
double num5 = 2.0 * Math.Asin(Math.Min(1.0, Math.Sqrt(d)));
return new Distance(num * num5, units);
}
public IEnumerable<ExpandoObject> GetNearest(string address, int parentId, int docTypeFilter, string locationPropAlias, int numberOfSearchResults)
{
UmbracoHelper help = new UmbracoHelper(UmbracoContext);
var nodesToSearchThrough = help.TypedContent(parentId)
.Descendants().Where(c => c.DocumentTypeId == docTypeFilter).Where("Visible");
var distanceunit = DistanceUnits.Kilometers;
var items = new List<GeoItem>();
var searchLocation = new Location();
var r = GoogleGeoCoder.CallGeoWS(address);
searchLocation = new Location(r.Results[0].Geometry.Location.Lat, r.Results[0].Geometry.Location.Lng);
foreach (var node in nodesToSearchThrough) {
var itemLocation = new Location(
Convert.ToDouble(node.GetProperty(locationPropAlias).Value.ToString().Split(',')[0], Utility.NumberFormatInfo),
Convert.ToDouble(node.GetProperty(locationPropAlias).Value.ToString().Split(',')[1], Utility.NumberFormatInfo));
items.Add(new GeoItem(node,itemLocation,searchLocation.DistanceBetween(itemLocation,distanceunit)));
}
items.Sort(new GeoItemComparer());
var retval = new List<ExpandoObject>();
foreach (GeoItem geo in items.Take(numberOfSearchResults))
{
IPublishedContent node = ((IPublishedContent)geo.Node);
var obj = new ExpandoObject() as IDictionary<string, Object>;
obj.Add("Distance", geo.Distance);
obj.Add("Latitude", geo.Location.Latitude);
obj.Add("Longitude", geo.Location.Longitude);
obj.Add("Name", node.Name);
obj.Add("Url", node.Url);
foreach (var nodeProp in node.Properties)
{
obj.Add(nodeProp.Alias, nodeProp.Value);
}
retval.Add((ExpandoObject)obj);
}
return retval;
}
static Location()
{
Empty = new Location();
}
public Distance DistanceBetween(Location location)
{
return this.DistanceBetween(location, DistanceUnits.Miles);
}
public GeoItem(object Node, Location Location, Distance Distance)
{
this.Node = Node;
this.Location = Location;
this.Distance = Distance;
}