Class Maps

    • The Maps service allows for finding directions, geocoding, sampling elevation, and creating static map images.

    • It includes properties for DirectionFinder and StaticMap enums.

    • Key methods include decoding and encoding polylines, creating new instances of DirectionFinder, ElevationSampler, Geocoder, and StaticMap, and setting authentication for Google Maps APIs Premium Plan accounts.
    Maps

    Allows for direction finding, geocoding, elevation sampling and the creation of static map images.

    Properties

    Property Type Description
    Direction Finder
    		Direction Finder Enums
    Static Map
    		Static Map Enums

    Methods

    Method Return type Brief description
    decode Polyline(polyline)
    		Number[] Decodes an encoded polyline string back into an array of points.
    encode Polyline(points)
    		String Encodes an array of points into a string.
    new Direction Finder()
    		Direction Finder Creates a new DirectionFinder object.
    new Elevation Sampler()
    		Elevation Sampler Creates an ElevationSampler object.
    new Geocoder()
    		Geocoder Creates a new Geocoder object.
    new Static Map()
    		Static Map Creates a new StaticMap object.
    set Authentication(clientId, signingKey)
    		void Enables the use of an externally established Google Maps APIs Premium Plan account, to leverage additional quota allowances .

    Detailed documentation

    decode Polyline(polyline)

    Decodes an encoded polyline string back into an array of points.

     // Decodes a string representation of the latitudes and longitudes of 
 // Minneapolis and Milwaukee respectively. 
 const 
  
 polyline 
  
 = 
  
 'qvkpG`qhxPbgyI_zq_@' 
 ; 
 const 
  
 points 
  
 = 
  
 Maps 
 . 
 decodePolyline 
 ( 
 polyline 
 ); 
 for 
  
 ( 
 let 
  
 i 
  
 = 
  
 0 
 ; 
  
 i 
 < 
 points 
 . 
 length 
 ; 
  
 i 
  
 += 
  
 2 
 ) 
  
 { 
  
 Logger 
 . 
 log 
 ( 
 '%s, %s' 
 , 
  
 points 
 [ 
 i 
 ], 
  
 points 
 [ 
 i 
  
 + 
  
 1 
 ]); 
 }

    Parameters

    Name Type Description
    polyline
    		String An encoded polyline to decode.

    Return

    Number[] — An array of latitude longitude pairs (lat0, long0, lat1, long1, ...).

    See also

    encode Polyline(points)

    Encodes an array of points into a string.

     // The latitudes and longitudes of New York and Boston respectively. 
 const 
  
 points 
  
 = 
  
 [ 
 40.77 
 , 
  
 - 
 73.97 
 , 
  
 42.34 
 , 
  
 - 
 71.04 
 ]; 
 const 
  
 polyline 
  
 = 
  
 Maps 
 . 
 encodePolyline 
 ( 
 points 
 );

    Parameters

    Name Type Description
    points
    		Number[] An array of latitude/longitude pairs to encode.

    Return

    String — An encoded string representing those points.

    See also

    new Direction Finder()

    Creates a new DirectionFinder object.

    Return

    Direction Finder — A new direction finder object.

    new Elevation Sampler()

    Creates an ElevationSampler object.

    Return

    Elevation Sampler — A new elevation sampler object.

    new Geocoder()

    Creates a new Geocoder object.

    Return

    Geocoder — A new geocoder object.

    new Static Map()

    Creates a new StaticMap object.

    Return

    Static Map — A new static map object.

    set Authentication(clientId, signingKey)

    Enables the use of an externally established Google Maps APIs Premium Plan account, to leverage additional quota allowances . Your client ID and signing key can be obtained from the Google Enterprise Support Portal. Set these values to null to go back to using the default quota allowances.

     Maps 
 . 
 setAuthentication 
 ( 
 'gme-123456789' 
 , 
  
 'VhSEZvOXVSdnlxTnpJcUE' 
 );

    Parameters

    Name Type Description
    client Id
    		String A client identifier.
    signing Key
    		String A private signing key.
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