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Google Maps | Introduction

  • Last Updated : 26 Mar, 2020
Geek Week

Google Maps is a web mapping service that is free by Google. This service provides various types of geographical information. With the help of google map, searching places and direction can be done. Also, we can get the traffic information of a specific area or view street-level images of cities.

Google Maps has a JavaScript API. This API is used to customize the map which displays the information.

Example:




<!DOCTYPE html>
<html>
  
<head>
    <title>
        Google Maps | Introduction
    </title>
      
    <!-- Add Google map API source -->
    <script src=
    </script>
  
    <script>
        function GFG() {
  
            var CustomOp = {
                center: new google.maps.LatLng(
                        28.502212, 77.405603),
                zoom: 17,
                mapTypeId: google.maps.MapTypeId.ROADMAP
            };
  
            // Map object
            var map = new google.maps.Map(
                document.getElementById("DivID"),
                CustomOp
            );
        }
    </script>
</head>
  
<!-- Function that execute when page load -->
<body onload="GFG()">
    <center>
        <h1 style="color:green">
            GeeksforGeeks
        </h1>
          
        <h3>Google Maps</h3>
          
        <!-- Basic Container -->
        <div id="DivID" 
            style="width:400px; height:300px;">
        </div>
    </center>
</body>
  
</html>

Output:

Exaplaination:



  • In the above example, we will use Google API to load google map.
    <script src = "https://maps.googleapis.com/maps/api/js"></script>

    Following are the steps required to get an API key:

  • To custmize the maps:
    var CustomOp = {
        center:new google.maps.LatLng(28.502212, 77.405603), 
        zoom:17, 
        mapTypeId:google.maps.MapTypeId.ROADMAP
    };

    In this case, CustomOp is an object that contains 3 options, centre, zoom, and maptypeid.

    • centre: This property is used to set the specific point in maps.
    • zoom: This property is used to specify the zoom level on a specific point.
    • maptypeid: This property is used to specify the type of map. (ROADMAP, SATELLITE, HYBRID, TERRAIN)
  • To create a map object we will use the following code:
    var map = new google.maps.Map(document.getElementById("DivID"), CustomOp);

Hey geek! The constant emerging technologies in the world of web development always keeps the excitement for this subject through the roof. But before you tackle the big projects, we suggest you start by learning the basics. Kickstart your web development journey by learning JS concepts with our JavaScript Course. Now at it’s lowest price ever!




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