Overview
The Google Map Chart displays a map using the Google Maps API. Data values are displayed as markers on the map. Data values can be coordinates (lat-long pairs) or addresses. The map will be scaled so that it includes all the identified points.
If you want your maps to be line drawings rather than satellite imagery, use a geochart instead.
Named Locations
You can identify the places to put markers by name, as shown below in this map of the top ten countries by population.
When the user selects one of the markers, a tooltip with the name
and population of the country is displayed, because we used the
showInfoWindow option. Also, when the user hovers over one of the markers for
a short while, a 'title' tip will show up with the same info, because we used the
showTooltip option.
Here's the full HTML:
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script>
google.charts.load('current', {
'packages': ['map'],
// Note: you will need to get a mapsApiKey for your project.
// See: https://developers.google.com/chart/interactive/docs/basic_load_libs#load-settings
'mapsApiKey': 'AIzaSyD-9tSrke72PouQMnMX-a7eZSW0jkFMBWY'
});
google.charts.setOnLoadCallback(drawMap);
function drawMap() {
var data = google.visualization.arrayToDataTable([
['Country', 'Population'],
['China', 'China: 1,363,800,000'],
['India', 'India: 1,242,620,000'],
['US', 'US: 317,842,000'],
['Indonesia', 'Indonesia: 247,424,598'],
['Brazil', 'Brazil: 201,032,714'],
['Pakistan', 'Pakistan: 186,134,000'],
['Nigeria', 'Nigeria: 173,615,000'],
['Bangladesh', 'Bangladesh: 152,518,015'],
['Russia', 'Russia: 146,019,512'],
['Japan', 'Japan: 127,120,000']
]);
var options = {
showTooltip: true,
showInfoWindow: true
};
var map = new google.visualization.Map(document.getElementById('chart_div'));
map.draw(data, options);
};
</script>
</head>
<body>
<div id="chart_div"></div>
</body>
</html>
Geocoded Locations
You can also specify locations by latitude and longitude, which loads faster than named locations:
The above chart identifies four locations by latitude and longitude.
var data = google.visualization.arrayToDataTable([
['Lat', 'Long', 'Name'],
[37.4232, -122.0853, 'Work'],
[37.4289, -122.1697, 'University'],
[37.6153, -122.3900, 'Airport'],
[37.4422, -122.1731, 'Shopping']
]);
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.charts.load("current", {
"packages":["map"],
// Note: you will need to get a mapsApiKey for your project.
// See: https://developers.google.com/chart/interactive/docs/basic_load_libs#load-settings
"mapsApiKey": "AIzaSyD-9tSrke72PouQMnMX-a7eZSW0jkFMBWY"
});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Lat', 'Long', 'Name'],
[37.4232, -122.0853, 'Work'],
[37.4289, -122.1697, 'University'],
[37.6153, -122.3900, 'Airport'],
[37.4422, -122.1731, 'Shopping']
]);
var map = new google.visualization.Map(document.getElementById('map_div'));
map.draw(data, {
showTooltip: true,
showInfoWindow: true
});
}
</script>
</head>
<body>
<div id="map_div" style="width: 400px; height: 300px"></div>
</body>
</html>
Customizing Markers
You can use marker shapes located elsewhere on the web. Here's an example using blue pins from iconarchive.com:
If you select pins in the above chart, they slant. PNGs, GIFs, and JPGs are supported.
var options = {
icons: {
default: {
normal: 'https://icons.iconarchive.com/icons/icons-land/vista-map-markers/48/Map-Marker-Ball-Azure-icon.png',
selected: 'https://icons.iconarchive.com/icons/icons-land/vista-map-markers/48/Map-Marker-Ball-Right-Azure-icon.png'
}
}
};
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.charts.load("current", {
"packages":["map"],
// Note: you will need to get a mapsApiKey for your project.
// See: https://developers.google.com/chart/interactive/docs/basic_load_libs#load-settings
"mapsApiKey": "AIzaSyD-9tSrke72PouQMnMX-a7eZSW0jkFMBWY"
});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Lat', 'Long', 'Name'],
[37.4232, -122.0853, 'Work'],
[37.4289, -122.1697, 'University'],
[37.6153, -122.3900, 'Airport'],
[37.4422, -122.1731, 'Shopping']
]);
var options = {
icons: {
default: {
normal: 'https://icons.iconarchive.com/icons/icons-land/vista-map-markers/48/Map-Marker-Ball-Azure-icon.png',
selected: 'https://icons.iconarchive.com/icons/icons-land/vista-map-markers/48/Map-Marker-Ball-Right-Azure-icon.png'
}
}
};
var map = new google.visualization.Map(document.getElementById('map_markers_div'));
map.draw(data, options);
}
</script>
</head>
<body>
<div id="map_markers_div" style="width: 400px; height: 300px"></div>
</body>
</html>
Adding Multiple Marker Sets
In addition to creating a default set of markers, you can also create multiple sets of markers.
To create an additional marker set, add an ID to the icons option and set your
marker images. Then, add a column to your Data Table, and set the ID of the marker set you wish
to use for each row in the Data Table (you can also use 'default' or
null to use the default markers).
var url = 'https://icons.iconarchive.com/icons/icons-land/vista-map-markers/48/';
var options = {
zoomLevel: 6,
showTooltip: true,
showInfoWindow: true,
useMapTypeControl: true,
icons: {
blue: {
normal: url + 'Map-Marker-Ball-Azure-icon.png',
selected: url + 'Map-Marker-Ball-Right-Azure-icon.png'
},
green: {
normal: url + 'Map-Marker-Push-Pin-1-Chartreuse-icon.png',
selected: url + 'Map-Marker-Push-Pin-1-Right-Chartreuse-icon.png'
},
pink: {
normal: url + 'Map-Marker-Ball-Pink-icon.png',
selected: url + 'Map-Marker-Ball-Right-Pink-icon.png'
}
}
};
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.charts.load('current', {
'packages': ['map'],
// Note: you will need to get a mapsApiKey for your project.
// See: https://developers.google.com/chart/interactive/docs/basic_load_libs#load-settings
'mapsApiKey': 'AIzaSyD-9tSrke72PouQMnMX-a7eZSW0jkFMBWY'
});
google.charts.setOnLoadCallback(drawMap);
function drawMap () {
var data = new google.visualization.DataTable();
data.addColumn('string', 'Address');
data.addColumn('string', 'Location');
data.addColumn('string', 'Marker')
data.addRows([
['New York City NY, United States', 'New York', 'blue' ],
['Scranton PA, United States', 'Scranton', 'green'],
['Washington DC, United States', 'Washington', 'pink' ],
['Philadelphia PA, United States', 'Philly', 'green'],
['Pittsburgh PA, United States', 'Pittsburgh', 'green'],
['Buffalo NY, United States', 'Buffalo', 'blue' ],
['Baltimore MD, United States', 'Baltimore', 'pink' ],
['Albany NY, United States', 'Albany', 'blue' ],
['Allentown PA, United States', 'Allentown', 'green']
]);
var url = 'https://icons.iconarchive.com/icons/icons-land/vista-map-markers/48/';
var options = {
zoomLevel: 6,
showTooltip: true,
showInfoWindow: true,
useMapTypeControl: true,
icons: {
blue: {
normal: url + 'Map-Marker-Ball-Azure-icon.png',
selected: url + 'Map-Marker-Ball-Right-Azure-icon.png'
},
green: {
normal: url + 'Map-Marker-Push-Pin-1-Chartreuse-icon.png',
selected: url + 'Map-Marker-Push-Pin-1-Right-Chartreuse-icon.png'
},
pink: {
normal: url + 'Map-Marker-Ball-Pink-icon.png',
selected: url + 'Map-Marker-Ball-Right-Pink-icon.png'
}
}
};
var map = new google.visualization.Map(document.getElementById('map_div'));
map.draw(data, options);
}
</script>
</head>
<body>
<div id="map_div" style="height: 500px; width: 900px"></div>
</body>
</html>
Styling Maps
The Map Visualization comes with the ability to set custom styles, allowing you to create one, or several, custom map types.
You can define a custom map type by creating a map style object and putting it under its
identifier (mapTypeId) under the maps option. For example:
var options = {
maps: {
<map style ID>: <map style object>
}
};
You can later refer to this custom map type by the map style ID you assigned to it.
Your map style object contains a name, which will be the display name in the
map type control (it does not have to match its mapTypeId), and a styles
array, which will contain style objects for each element you wish to style. The
Google Maps API reference
contains a list of the different element, feature, and style types with which you can create a
custom map type.
Note: Your custom mapTypeId must be placed under the
maps option.
var options = {
mapType: 'styledMap',
zoomLevel: 12,
showTooltip: true,
showInfoWindow: true,
useMapTypeControl: true,
maps: {
// Your custom mapTypeId holding custom map styles.
styledMap: {
name: 'Styled Map', // This name will be displayed in the map type control.
styles: [
{featureType: 'poi.attraction',
stylers: [{color: '#fce8b2'}]
},
{featureType: 'road.highway',
stylers: [{hue: '#0277bd'}, {saturation: -50}]
},
{featureType: 'road.highway',
elementType: 'labels.icon',
stylers: [{hue: '#000'}, {saturation: 100}, {lightness: 50}]
},
{featureType: 'landscape',
stylers: [{hue: '#259b24'}, {saturation: 10}, {lightness: -22}]
}
]}}
};
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.charts.load('current', {
'packages': ['map'],
// Note: you will need to get a mapsApiKey for your project.
// See: https://developers.google.com/chart/interactive/docs/basic_load_libs#load-settings
'mapsApiKey': 'AIzaSyD-9tSrke72PouQMnMX-a7eZSW0jkFMBWY'
});
google.charts.setOnLoadCallback(drawMap);
function drawMap () {
var data = new google.visualization.DataTable();
data.addColumn('string', 'Address');
data.addColumn('string', 'Location');
data.addRows([
['Lake Buena Vista, FL 32830, United States', 'Walt Disney World'],
['6000 Universal Boulevard, Orlando, FL 32819, United States', 'Universal Studios'],
['7007 Sea World Drive, Orlando, FL 32821, United States', 'Seaworld Orlando' ]
]);
var options = {
mapType: 'styledMap',
zoomLevel: 12,
showTooltip: true,
showInfoWindow: true,
useMapTypeControl: true,
maps: {
// Your custom mapTypeId holding custom map styles.
styledMap: {
name: 'Styled Map', // This name will be displayed in the map type control.
styles: [
{featureType: 'poi.attraction',
stylers: [{color: '#fce8b2'}]
},
{featureType: 'road.highway',
stylers: [{hue: '#0277bd'}, {saturation: -50}]
},
{featureType: 'road.highway',
elementType: 'labels.icon',
stylers: [{hue: '#000'}, {saturation: 100}, {lightness: 50}]
},
{featureType: 'landscape',
stylers: [{hue: '#259b24'}, {saturation: 10}, {lightness: -22}]
}
]}}
};
var map = new google.visualization.Map(document.getElementById('map_div'));
map.draw(data, options);
}
</script>
</head>
<body>
<div id="map_div" style="height: 500px; width: 900px"></div>
</body>
</html>
In addition to creating custom map types, you can also specify which maps the user can
view in the map type control with the mapTypeIds option. By default all map types,
including your custom map types, will appear in the map type control. The
mapTypeIds option accepts an array of strings of the map types you wish to allow the
user to view. These strings must refer to either the predefined names for the default map
styles (i.e. normal, satellite, terrain, hybrid), or the map style ID of a custom map type you
defined. By setting the mapTypeIds option, your map will only make available the map types
you specify in this array.
You can also use this in conjunction with the mapType option to set a map style as
the default, but not include it in the mapTypeIds array. This will cause that map to
only display on the initial load.
var options = {
mapType: 'styledMap',
zoomLevel: 7,
showTooltip: true,
showInfoWindow: true,
useMapTypeControl: true,
// User will only be able to view/select custom styled maps.
mapTypeIds: ['styledMap', 'redEverything', 'imBlue'],
maps: {
styledMap: {
name: 'Styled Map',
styles: [
{featureType: 'poi.attraction',
stylers: [{color: '#fce8b2'}]},
{featureType: 'road.highway',
stylers: [{hue: '#0277bd'}, {saturation: -50}]},
{featureType: 'road.highway', elementType: 'labels.icon',
stylers: [{hue: '#000'}, {saturation: 100}, {lightness: 50}]},
{featureType: 'landscape',
stylers: [{hue: '#259b24'}, {saturation: 10},{lightness: -22}]}
]},
redEverything: {
name: 'Redden All The Things',
styles: [
{featureType: 'landscape',
stylers: [{color: '#fde0dd'}]},
{featureType: 'road.highway',
stylers: [{color: '#67000d'}]},
{featureType: 'road.highway', elementType: 'labels',
stylers: [{visibility: 'off'}]},
{featureType: 'poi',
stylers: [{hue: '#ff0000'}, {saturation: 50}, {lightness: 0}]},
{featureType: 'water',
stylers: [{color: '#67000d'}]},
{featureType: 'transit.station.airport',
stylers: [{color: '#ff0000'}, {saturation: 50}, {lightness: -50}]}
]},
imBlue: {
name: 'All Your Blues are Belong to Us',
styles: [
{featureType: 'landscape',
stylers: [{color: '#c5cae9'}]},
{featureType: 'road.highway',
stylers: [{color: '#023858'}]},
{featureType: 'road.highway', elementType: 'labels',
stylers: [{visibility: 'off'}]},
{featureType: 'poi',
stylers: [{hue: '#0000ff'}, {saturation: 50}, {lightness: 0}]},
{featureType: 'water',
stylers: [{color: '#0288d1'}]},
{featureType: 'transit.station.airport',
stylers: [{color: '#0000ff'}, {saturation: 50}, {lightness: -50}]}
]}
}
};
Loading
The google.charts.load package name is "map".
Note that you will need to get your own mapsApiKey for your project, rather
than just copying the one used in examples here, to avoid degredation of the map data service
for your users. For more details, see
Load Settings.
google.charts.load("current", {
"packages":["map"],
// Note: you will need to get a mapsApiKey for your project.
// See: https://developers.google.com/chart/interactive/docs/basic_load_libs#load-settings
"mapsApiKey": "AIzaSyD-9tSrke72PouQMnMX-a7eZSW0jkFMBWY"
});
The visualization's class name is google.visualization.Map.
Because the shortened name, Map, conflicts with the JavaScript Map
class, the ChartWrapper will not automatically load this package when you specify
chartType: 'Map'. But you can instead specify
chartType: 'google.visualization.Map'.
var visualization = new google.visualization.Map(container);
Data Format
Two alternative data formats are supported:
- Lat-Long pairs - The first two columns should be numbers designating the latitude and longitude, respectively. An optional third column holds a string that describes the location specified in the first two columns.
- String address - The first column should be a string that contains an address. This address should be as complete as you can make it. An optional second column holds a string that describes the location in the first column. String addresses load more slowly, especially when you have more than 10 addresses.
Note: The Lat-Long pairs option loads maps much faster, especially with large data. We recommend that you use this option for large data sets. Please visit Google Maps API to find out how to transform your addresses to lat-long points. The map can display a maximum of 400 entries; if your data holds more than 400 rows, only the first 400 will be shown.
Configuration Options
| Name | |
|---|---|
| enableScrollWheel |
If set to true, enables zooming in and out using the mouse scroll wheel. Type: boolean
Default: false
|
| icons |
Holds set(s) of custom markers. Each marker set can specify a var options = {
icons: {
default: {
normal: '/path/to/marker/image',
selected: '/path/to/marker/image'
},
customMarker: {
normal: '/path/to/other/marker/image',
selected: '/path/to/other/marker/image'
}
}
};
Type: object
Default: null
|
| lineColor |
If showLine is true, defines the line color. For example: '#800000'. Type: string
Default: default color
|
| lineWidth |
If showLine is true, defines the line width (in pixels). Type: number
Default: 10
|
| maps.<mapTypeId> |
An object containing properties of a custom map type. This custom map type will be
accessed by the
Type: object
Default: null
|
| maps.<mapTypeId>.name |
The name of the map that will be displayed in the map control if
Type: string
Default: null
|
| maps.<mapTypeId>.styles |
Holds the style objects for the various elements of a custom map type.
Each style object can contain 1 to 3 properties: {
featureType: 'roadway.highway',
elementType: 'labels.text.fill',
stylers: [{hue: '#ff0000}, {saturation: 50}, {lightness: 100}]
}
See the Maps documentation for more information on the different features, elements, and stylers. Type: array
Default: null
|
| mapType |
The type of map to show. Possible values are 'normal', 'terrain', 'satellite', 'hybrid', or the ID of a custom map type, if any were created. Type: string
Default: 'hybrid'
|
| mapTypeIds |
If using the map type control ( Type: array
Default: null
|
| showInfoWindow |
If set to true, shows the location description in a separate window when a
point marker is selected by the user. This option used to be called Type: boolean
Default: false
|
| showLine |
If set to true, shows a Google Maps polyline through all the points. Type: boolean
Default: false
|
| showTooltip |
If set to true, shows the location description as a tooltip when the mouse is positioned
above a point marker. This option used to be called Type: boolean
Default: false
|
| useMapTypeControl |
Show a map type selector that enables the viewer to switch between [map, satellite, hybrid, terrain]. When useMapTypeControl is false (default) no selector is presented and the type is determined by the mapType option. Type: boolean
Default: false
|
| zoomLevel |
An integer indicating the initial zoom level of the map, where 0 is completely zoomed out (whole world) and 19 is the maximum zoom level. (See "Zoom Levels" in the Google Maps API.) Type: number
Default: automatic
|
Methods
| Method | |
|---|---|
draw(data, options) |
Draws the map. Return Type: none
|
getSelection() |
Standard
Return Type: Array of selection elements
|
setSelection(selection) |
Standard
Return Type: none
|
Events
| Name | |
|---|---|
error |
Fired when an error occurs when attempting to render the chart. Properties: id, message
|
select |
Standard select event Properties: None
|
Data Policy
Map are displayed by Google Maps. Please refer to the Google Maps Terms of Service for more information on data policy.