SphinxClient::setGeoAnchor
  Set anchor point for a geosphere distance calculations
  
 
  Description
  
   public bool SphinxClient::setGeoAnchor
    ( string $attrlat
   , string $attrlong
   , float $latitude
   , float $longitude
   )
  
  
   Once an anchor point is set, you can use magic "@geodist" attribute name in
   your filters and/or sorting expressions. 
  
  
 
  Parameters
  
   
    - 
     attrlat
- 
      
       Name of a latitude attribute.
       
- 
     attrlong
- 
      
       Name of a longitude attribute.
       
- 
     latitude
- 
      
       Anchor latitude in radians.
       
- 
     longitude
- 
      
       Anchor longitude in radians.
       
 
 
  Return Values
  
   Returns TRUE on success or FALSE on failure.