Class DirectionFinder

    Direction Finder

    Allows for the retrieval of directions between locations.The example below shows how you can use this class to get the directions from Times Square to Central Park, stopping first at Lincoln Center, plot the locations and path on a map, and send the map in an email.

     // Get the directions. 
 const 
  
 directions 
  
 = 
  
 Maps 
 . 
 newDirectionFinder 
 () 
  
 . 
 setOrigin 
 ( 
 'Times Square, New York, NY' 
 ) 
  
 . 
 addWaypoint 
 ( 
 'Lincoln Center, New York, NY' 
 ) 
  
 . 
 setDestination 
 ( 
 'Central Park, New York, NY' 
 ) 
  
 . 
 setMode 
 ( 
 Maps 
 . 
 DirectionFinder 
 . 
 Mode 
 . 
 DRIVING 
 ) 
  
 . 
 getDirections 
 (); 
 const 
  
 route 
  
 = 
  
 directions 
 . 
 routes 
 [ 
 0 
 ]; 
 // Set up marker styles. 
 let 
  
 markerLetterCode 
  
 = 
  
 'A' 
 . 
 charCodeAt 
 (); 
 // Add markers to the map. 
 const 
  
 map 
  
 = 
  
 Maps 
 . 
 newStaticMap 
 (); 
 for 
  
 ( 
 let 
  
 i 
  
 = 
  
 0 
 ; 
  
 i 
 < 
 route 
 . 
 legs 
 . 
 length 
 ; 
  
 i 
 ++ 
 ) 
  
 { 
  
 const 
  
 leg 
  
 = 
  
 route 
 . 
 legs 
 [ 
 i 
 ]; 
  
 if 
  
 ( 
 i 
  
 === 
  
 0 
 ) 
  
 { 
  
 // Add a marker for the start location of the first leg only. 
  
 map 
 . 
 setMarkerStyle 
 ( 
  
 Maps 
 . 
 StaticMap 
 . 
 MarkerSize 
 . 
 MID 
 , 
  
 Maps 
 . 
 StaticMap 
 . 
 Color 
 . 
 GREEN 
 , 
  
 String 
 . 
 fromCharCode 
 ( 
 markerLetterCode 
 ), 
  
 ); 
  
 map 
 . 
 addMarker 
 ( 
 leg 
 . 
 start_location 
 . 
 lat 
 , 
  
 leg 
 . 
 start_location 
 . 
 lng 
 ); 
  
 markerLetterCode 
 ++ 
 ; 
  
 } 
  
 map 
 . 
 setMarkerStyle 
 ( 
  
 Maps 
 . 
 StaticMap 
 . 
 MarkerSize 
 . 
 MID 
 , 
  
 Maps 
 . 
 StaticMap 
 . 
 Color 
 . 
 GREEN 
 , 
  
 String 
 . 
 fromCharCode 
 ( 
 markerLetterCode 
 ), 
  
 ); 
  
 map 
 . 
 addMarker 
 ( 
 leg 
 . 
 end_location 
 . 
 lat 
 , 
  
 leg 
 . 
 end_location 
 . 
 lng 
 ); 
  
 markerLetterCode 
 ++ 
 ; 
 } 
 // Add a path for the entire route. 
 map 
 . 
 addPath 
 ( 
 route 
 . 
 overview_polyline 
 . 
 points 
 ); 
 // Send the map in an email. 
 const 
  
 toAddress 
  
 = 
  
 Session 
 . 
 getActiveUser 
 (). 
 getEmail 
 (); 
 MailApp 
 . 
 sendEmail 
 ( 
  
 toAddress 
 , 
  
 'Directions' 
 , 
  
 `Please open: 
 ${ 
 map 
 . 
 getMapUrl 
 () 
 } 
& key=YOUR_API_KEY` 
 , 
  
 { 
  
 htmlBody 
 : 
  
 'See below.<br/><img src="cid:mapImage">' 
 , 
  
 inlineImages 
 : 
  
 { 
  
 mapImage 
 : 
  
 Utilities 
 . 
 newBlob 
 ( 
 map 
 . 
 getMapImage 
 (), 
  
 'image/png' 
 ), 
  
 }, 
  
 }, 
 );

    See also

    Methods

    Method Return type Brief description
    add Waypoint(latitude, longitude)
    		Direction Finder Adds a waypoint that the route must pass through, using a point (lat/lng).
    add Waypoint(address)
    		Direction Finder Adds a waypoint that the route must pass through, using an address.
    clear Waypoints()
    		Direction Finder Clears the current set of waypoints.
    get Directions()
    		Object Gets the directions using the origin, destination, and other options that were set.
    set Alternatives(useAlternatives)
    		Direction Finder Sets whether or not alternative routes should be returned, instead of just the highest ranked route (defaults to false).
    set Arrive(time)
    		Direction Finder Sets the desired time of arrival (when applicable).
    set Avoid(avoid)
    		Direction Finder Sets whether to avoid certain types of restrictions.
    set Depart(time)
    		Direction Finder Sets the desired time of departure (when applicable).
    set Destination(latitude, longitude)
    		Direction Finder Sets the ending location for which to calculate directions to, using a point (lat/lng).
    set Destination(address)
    		Direction Finder Sets the ending location for which to calculate directions to, using an address.
    set Language(language)
    		Direction Finder Sets the language to be used for the directions.
    set Mode(mode)
    		Direction Finder Sets the mode of travel (defaults to driving).
    set Optimize Waypoints(optimizeOrder)
    		Direction Finder Sets whether or not to optimize the provided route by rearranging the waypoints in a more efficient order (defaults to false).
    set Origin(latitude, longitude)
    		Direction Finder Sets the starting location from which to calculate directions, using a point (lat/lng).
    set Origin(address)
    		Direction Finder Sets the starting location from which to calculate directions, using an address.
    set Region(region)
    		Direction Finder Sets a region to use when interpreting location names.

    Detailed documentation

    add Waypoint(latitude, longitude)

    Adds a waypoint that the route must pass through, using a point (lat/lng).

     // Creates a DirectionFinder with a wapoint at Lincoln Center. 
 const 
  
 directionFinder 
  
 = 
  
 Maps 
 . 
 newDirectionFinder 
 (). 
 addWaypoint 
 ( 
  
 40.772628 
 , 
  
 - 
 73.984243 
 , 
 );

    Parameters

    Name Type Description
    latitude
    		Number Latitude of the waypoint.
    longitude
    		Number Longitude of the waypoint.

    Return

    Direction Finder — The DirectionFinder object to facilitate chaining of calls.

    add Waypoint(address)

    Adds a waypoint that the route must pass through, using an address.

     // Creates a DirectionFinder with a wapoint at Lincoln Center. 
 const 
  
 directionFinder 
  
 = 
  
 Maps 
 . 
 newDirectionFinder 
 (). 
 addWaypoint 
 ( 
  
 'Lincoln Center, New York, NY' 
 , 
 );

    Parameters

    Name Type Description
    address
    		String An address.

    Return

    Direction Finder — The DirectionFinder object to facilitate chaining of calls.

    clear Waypoints()

    Clears the current set of waypoints.

     const 
  
 directionFinder 
  
 = 
  
 Maps 
 . 
 newDirectionFinder 
 (); 
 // ... 
 // Do something interesting here ... 
 // ... 
 // Remove all waypoints added with addWaypoint(). 
 directionFinder 
 . 
 clearWaypoints 
 ();

    Return

    Direction Finder — the DirectionFinder object to facilitate chaining of calls

    get Directions()

    Gets the directions using the origin, destination, and other options that were set.

     // Logs how long it would take to walk from Times Square to Central Park. 
 const 
  
 directions 
  
 = 
  
 Maps 
 . 
 newDirectionFinder 
 () 
  
 . 
 setOrigin 
 ( 
 'Times Square, New York, NY' 
 ) 
  
 . 
 setDestination 
 ( 
 'Central Park, New York, NY' 
 ) 
  
 . 
 setMode 
 ( 
 Maps 
 . 
 DirectionFinder 
 . 
 Mode 
 . 
 WALKING 
 ) 
  
 . 
 getDirections 
 (); 
 Logger 
 . 
 log 
 ( 
 directions 
 . 
 routes 
 [ 
 0 
 ]. 
 legs 
 [ 
 0 
 ]. 
 duration 
 . 
 text 
 );

    Return

    Object — a JSON object containing the set of routes for the directions, as described here

    See also

    set Alternatives(useAlternatives)

    Sets whether or not alternative routes should be returned, instead of just the highest ranked route (defaults to false). If true, the resulting object's routes array may contain multiple entries.

     // Creates a DirectionFinder with alternative routes enabled. 
 const 
  
 directionFinder 
  
 = 
  
 Maps 
 . 
 newDirectionFinder 
 (). 
 setAlternatives 
 ( 
 true 
 );

    Parameters

    Name Type Description
    use Alternatives
    		Boolean true to return alternative routes, false otherwise

    Return

    Direction Finder — the DirectionFinder object to facilitate chaining of calls

    set Arrive(time)

    Sets the desired time of arrival (when applicable).

     // Creates a DirectionFinder with an arrival time of 2 hours from now. 
 const 
  
 now 
  
 = 
  
 new 
  
 Date 
 (); 
 const 
  
 arrive 
  
 = 
  
 new 
  
 Date 
 ( 
 now 
 . 
 getTime 
 () 
  
 + 
  
 2 
  
 * 
  
 60 
  
 * 
  
 60 
  
 * 
  
 1000 
 ); 
 const 
  
 directionFinder 
  
 = 
  
 Maps 
 . 
 newDirectionFinder 
 (). 
 setArrive 
 ( 
 arrive 
 );

    Parameters

    Name Type Description
    time
    		Date the time of arrival

    Return

    Direction Finder — the DirectionFinder object to facilitate chaining of calls

    See also

    set Avoid(avoid)

    Sets whether to avoid certain types of restrictions.

     // Creates a DirectionFinder that avoid highways. 
 const 
  
 directionFinder 
  
 = 
  
 Maps 
 . 
 newDirectionFinder 
 (). 
 setAvoid 
 ( 
  
 Maps 
 . 
 DirectionFinder 
 . 
 Avoid 
 . 
 HIGHWAYS 
 , 
 );

    Parameters

    Name Type Description
    avoid
    		String a constant value from Avoid

    Return

    Direction Finder — the DirectionFinder object to facilitate chaining of calls

    See also

    set Depart(time)

    Sets the desired time of departure (when applicable).

     // Creates a DirectionFinder with a departure time of 1 hour from now. 
 const 
  
 now 
  
 = 
  
 new 
  
 Date 
 (); 
 const 
  
 depart 
  
 = 
  
 new 
  
 Date 
 ( 
 now 
 . 
 getTime 
 () 
  
 + 
  
 1 
  
 * 
  
 60 
  
 * 
  
 60 
  
 * 
  
 1000 
 ); 
 const 
  
 directionFinder 
  
 = 
  
 Maps 
 . 
 newDirectionFinder 
 (). 
 setDepart 
 ( 
 depart 
 );

    Parameters

    Name Type Description
    time
    		Date the time of departure

    Return

    Direction Finder — The DirectionFinder object to facilitate chaining of calls.

    See also

    set Destination(latitude, longitude)

    Sets the ending location for which to calculate directions to, using a point (lat/lng).

     // Creates a DirectionFinder with the destination set to Central Park. 
 const 
  
 directionFinder 
  
 = 
  
 Maps 
 . 
 newDirectionFinder 
 (). 
 setDestination 
 ( 
  
 40.777052 
 , 
  
 - 
 73.975464 
 , 
 );

    Parameters

    Name Type Description
    latitude
    		Number the latitude of the ending location
    longitude
    		Number the longitude of the ending location

    Return

    Direction Finder — the DirectionFinder object to facilitate chaining of calls

    set Destination(address)

    Sets the ending location for which to calculate directions to, using an address.

     // Creates a DirectionFinder with the destination set to Central Park. 
 const 
  
 directionFinder 
  
 = 
  
 Maps 
 . 
 newDirectionFinder 
 (). 
 setDestination 
 ( 
  
 'Central Park, New York, NY' 
 , 
 );

    Parameters

    Name Type Description
    address
    		String the ending address

    Return

    Direction Finder — the DirectionFinder object to facilitate chaining of calls

    set Language(language)

    Sets the language to be used for the directions.

     // Creates a DirectionFinder with the language set to French. 
 const 
  
 directionFinder 
  
 = 
  
 Maps 
 . 
 newDirectionFinder 
 (). 
 setLanguage 
 ( 
 'fr' 
 );

    Parameters

    Name Type Description
    language
    		String a BCP-47 language identifier

    Return

    Direction Finder — the DirectionFinder object to facilitate chaining of calls

    See also

    set Mode(mode)

    Sets the mode of travel (defaults to driving).

     // Creates a DirectionFinder with the mode set to walking. 
 const 
  
 directionFinder 
  
 = 
  
 Maps 
 . 
 newDirectionFinder 
 (). 
 setMode 
 ( 
  
 Maps 
 . 
 DirectionFinder 
 . 
 Mode 
 . 
 WALKING 
 , 
 );

    Parameters

    Name Type Description
    mode
    		String a constant value from Mode

    Return

    Direction Finder — the DirectionFinder object to facilitate chaining of calls

    See also

    set Optimize Waypoints(optimizeOrder)

    Sets whether or not to optimize the provided route by rearranging the waypoints in a more efficient order (defaults to false).

     // Creates a DirectionFinder with wapoint optimization enabled. 
 const 
  
 directionFinder 
  
 = 
  
 Maps 
 . 
 newDirectionFinder 
 (). 
 setOptimizeWaypoints 
 ( 
 true 
 );

    Parameters

    Name Type Description
    optimize Order
    		Boolean true to optimize the order, or false otherwise

    Return

    Direction Finder — the DirectionFinder object to facilitate chaining of calls

    See also

    set Origin(latitude, longitude)

    Sets the starting location from which to calculate directions, using a point (lat/lng).

     // Creates a DirectionFinder with the origin set to Times Square. 
 const 
  
 directionFinder 
  
 = 
  
 Maps 
 . 
 newDirectionFinder 
 (). 
 setOrigin 
 ( 
  
 40.759011 
 , 
  
 - 
 73.984472 
 , 
 );

    Parameters

    Name Type Description
    latitude
    		Number the latitude of the starting location
    longitude
    		Number the longitude of the starting location

    Return

    Direction Finder — the DirectionFinder object to facilitate chaining of calls

    set Origin(address)

    Sets the starting location from which to calculate directions, using an address.

     // Creates a DirectionFinder with the origin set to Times Square. 
 const 
  
 directionFinder 
  
 = 
  
 Maps 
 . 
 newDirectionFinder 
 (). 
 setOrigin 
 ( 
  
 'Times Square, New York, NY' 
 , 
 );

    Parameters

    Name Type Description
    address
    		String the starting address

    Return

    Direction Finder — the DirectionFinder instance to facilitate chaining of calls

    set Region(region)

    Sets a region to use when interpreting location names. The supported region codes correspond to the ccTLDs supported by Google Maps. For example, the region code "uk" corresponds to "maps.google.co.uk".

     // Creates a DirectionFinder with the region set to France. 
 const 
  
 directionFinder 
  
 = 
  
 Maps 
 . 
 newDirectionFinder 
 (). 
 setRegion 
 ( 
 'fr' 
 );

    Parameters

    Name Type Description
    region
    		String the region code to use

    Return

    Direction Finder — the DirectionFinder object to facilitate chaining of calls

    See also
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