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FunctionGeodist Method (Single, Single, Single, Single)

Calculates the geosphere distance between the two points given by their coordinates. The coordinates must be provided in radians.

Namespace:  SphinxConnector.FluentApi
Assembly:  SphinxConnector (in SphinxConnector.dll) Version: 5.4.1
Syntax
Copy
public static float Geodist(
	float latitude1,
	float longitude1,
	float latitude2,
	float longitude2
)

Parameters

latitude1
Type: SystemSingle
The latitude of the first point.
longitude1
Type: SystemSingle
The longitude of the first point.
latitude2
Type: SystemSingle
The latitude of the second point.
longitude2
Type: SystemSingle
The longitude of the second point.

Return Value

Type: Single
The geosphere distance in meters.
Examples
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using (IFulltextSession fulltextSession = fulltextStore.StartSession())
{                
    var results = fulltextSession.Query<Document>().
                                  Select(x => new 
                                  {
                                      Geodistance = Function.Geodist(40.7643929f, -73.9997683f, x.Latitude, x.Longitude)
                                  }).
                                  Where(x => x.Geodistance < 10000).
                                  ToList();        
}
See Also