Overview
A pie chart that is rendered within the browser using SVG or VML. Displays tooltips when hovering over slices.
Example
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.charts.load('current', {'packages':['corechart']});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Task', 'Hours per Day'],
['Work', 11],
['Eat', 2],
['Commute', 2],
['Watch TV', 2],
['Sleep', 7]
]);
var options = {
title: 'My Daily Activities'
};
var chart = new google.visualization.PieChart(document.getElementById('piechart'));
chart.draw(data, options);
}
</script>
</head>
<body>
<div id="piechart" style="width: 900px; height: 500px;"></div>
</body>
</html>
Making a 3D Pie Chart
If you set the is3D option to true, your
pie chart will be drawn as though it has three dimensions:
is3D is false by default, so here we explicitly set it to
true:
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.charts.load("current", {packages:["corechart"]});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Task', 'Hours per Day'],
['Work', 11],
['Eat', 2],
['Commute', 2],
['Watch TV', 2],
['Sleep', 7]
]);
var options = {
title: 'My Daily Activities',
is3D: true,
};
var chart = new google.visualization.PieChart(document.getElementById('piechart_3d'));
chart.draw(data, options);
}
</script>
</head>
<body>
<div id="piechart_3d" style="width: 900px; height: 500px;"></div>
</body>
</html>
Making a Donut Chart
A donut chart is a pie chart with a hole in the center. You
can create donut charts with the pieHole option:
The pieHole option should be set to a number between 0
and 1, corresponding to the ratio of radii between the hole and the
chart. Numbers between 0.4 and 0.6 will look best on most charts.
Values equal to or greater than 1 will be ignored, and a value of 0
will completely shut your piehole.
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.charts.load("current", {packages:["corechart"]});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Task', 'Hours per Day'],
['Work', 11],
['Eat', 2],
['Commute', 2],
['Watch TV', 2],
['Sleep', 7]
]);
var options = {
title: 'My Daily Activities',
pieHole: 0.4,
};
var chart = new google.visualization.PieChart(document.getElementById('donutchart'));
chart.draw(data, options);
}
</script>
</head>
<body>
<div id="donutchart" style="width: 900px; height: 500px;"></div>
</body>
</html>
You can't combine the pieHole and is3D
options; if you do, pieHole will be ignored.
Note that Google Charts tries to place the label as close to the center of the slice as possible. If you have a donut chart with just one slice, the center of the slice may fall into the donut hole. In that case, change the color of the label:
var options = {
pieHole: 0.5,
pieSliceTextStyle: {
color: 'black',
},
legend: 'none'
};
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.charts.load('current', {'packages':['corechart']});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Effort', 'Amount given'],
['My all', 100],
]);
var options = {
pieHole: 0.5,
pieSliceTextStyle: {
color: 'black',
},
legend: 'none'
};
var chart = new google.visualization.PieChart(document.getElementById('donut_single'));
chart.draw(data, options);
}
</script>
</head>
<body>
<div id="donut_single" style="width: 900px; height: 500px;"></div>
</body>
</html>
Rotating a Pie Chart
By default, pie charts begin with the left edge of the first slice
pointing straight up. You can change that with
the pieStartAngle option:
Here, we rotate the chart clockwise 100 degrees with an option
of pieStartAngle: 100. (So chosen because that particular
angle happens to make the "Italian" label fit inside the slice.)
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.charts.load("current", {packages:["corechart"]});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Language', 'Speakers (in millions)'],
['German', 5.85],
['French', 1.66],
['Italian', 0.316],
['Romansh', 0.0791]
]);
var options = {
legend: 'none',
pieSliceText: 'label',
title: 'Swiss Language Use (100 degree rotation)',
pieStartAngle: 100,
};
var chart = new google.visualization.PieChart(document.getElementById('piechart'));
chart.draw(data, options);
}
</script>
</head>
<body>
<div id="piechart" style="width: 900px; height: 500px;"></div>
</body>
</html>
Exploding a Slice
You can separate pie slices from the rest of the chart with the offset property of
the slices option:
To separate a slice, create a slices object and assign the appropriate slice number
an offset between 0 and 1. Below, we assign progressively larger offsets to slices 4
(Gujarati), 12 (Marathi), 14 (Oriya), and 15 (Punjabi):
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.charts.load("current", {packages:["corechart"]});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Language', 'Speakers (in millions)'],
['Assamese', 13], ['Bengali', 83], ['Bodo', 1.4],
['Dogri', 2.3], ['Gujarati', 46], ['Hindi', 300],
['Kannada', 38], ['Kashmiri', 5.5], ['Konkani', 5],
['Maithili', 20], ['Malayalam', 33], ['Manipuri', 1.5],
['Marathi', 72], ['Nepali', 2.9], ['Oriya', 33],
['Punjabi', 29], ['Sanskrit', 0.01], ['Santhali', 6.5],
['Sindhi', 2.5], ['Tamil', 61], ['Telugu', 74], ['Urdu', 52]
]);
var options = {
title: 'Indian Language Use',
legend: 'none',
pieSliceText: 'label',
slices: { 4: {offset: 0.2},
12: {offset: 0.3},
14: {offset: 0.4},
15: {offset: 0.5},
},
};
var chart = new google.visualization.PieChart(document.getElementById('piechart'));
chart.draw(data, options);
}
</script>
</head>
<body>
<div id="piechart" style="width: 900px; height: 500px;"></div>
</body>
</html>
Removing Slices
To omit a slice, change the color
to 'transparent':
We also used the pieStartAngle to rotate the chart 135
degrees, pieSliceText to remove the text from the
slices, and tooltip.trigger to disable tooltips:
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.charts.load("current", {packages:["corechart"]});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Pac Man', 'Percentage'],
['', 75],
['', 25]
]);
var options = {
legend: 'none',
pieSliceText: 'none',
pieStartAngle: 135,
tooltip: { trigger: 'none' },
slices: {
0: { color: 'yellow' },
1: { color: 'transparent' }
}
};
var chart = new google.visualization.PieChart(document.getElementById('pacman'));
chart.draw(data, options);
}
</script>
</head>
<body>
<div id="pacman" style="width: 900px; height: 500px;"></div>
</body>
</html>
Slice Visibility Threshold
You can set a value as the threshold for a pie slice to render individually. This value corresponds to a fraction of the chart (with the whole chart being of value 1). To set this threshold as a percentage of the whole, divide the percentage desired by 100 (for a 20% threshold, the value would be 0.2).
sliceVisibilityThreshold: 5/8 // This is equivalent to 0.625 or 62.5% of the chart.
Any slices smaller than this threshold will be combined into a single "Other" slice, and will have the combined value of all slices below the threshold.
google.charts.load('current', {'packages':['corechart']});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = new google.visualization.DataTable();
data.addColumn('string', 'Pizza');
data.addColumn('number', 'Populartiy');
data.addRows([
['Pepperoni', 33],
['Hawaiian', 26],
['Mushroom', 22],
['Sausage', 10], // Below limit.
['Anchovies', 9] // Below limit.
]);
var options = {
title: 'Popularity of Types of Pizza',
sliceVisibilityThreshold: .2
};
var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
Loading
The google.charts.load package name is "corechart".
google.charts.load("current", {packages: ["corechart"]});
The visualization's class name is google.visualization.PieChart.
var visualization = new google.visualization.PieChart(container);
Data Format
Rows: Each row in the table represents a slice.
Columns:
| Column 0 | Column 1 | ... | Column N (optional) | |
|---|---|---|---|---|
| Purpose: | Slice labels | Slice values | ... | Optional roles |
| Data Type: | string | number | ... | |
| Role: | domain | data | ... | |
| Optional column roles: | None | None | ... |
Configuration Options
| Name | |
|---|---|
| backgroundColor |
The background color for the main area of the chart. Can be either a simple HTML color string,
for example: Type: string or object
Default: 'white'
|
| backgroundColor.stroke |
The color of the chart border, as an HTML color string. Type: string
Default: '#666'
|
| backgroundColor.strokeWidth |
The border width, in pixels. Type: number
Default: 0
|
| backgroundColor.fill |
The chart fill color, as an HTML color string. Type: string
Default: 'white'
|
| chartArea |
An object with members to configure the placement and size of the chart area (where the chart
itself is drawn, excluding axis and legends). Two formats are supported: a number, or a
number followed by %. A simple number is a value in pixels; a number followed by % is a
percentage. Example: Type: object
Default: null
|
| chartArea.backgroundColor |
Chart area background color. When a string is used, it can be either a hex string
(e.g., '#fdc') or an English color name. When an object is used, the following properties can
be provided:
Type: string or object
Default: 'white'
|
| chartArea.left |
How far to draw the chart from the left border. Type: number or string
Default: auto
|
| chartArea.top |
How far to draw the chart from the top border. Type: number or string
Default: auto
|
| chartArea.width |
Chart area width. Type: number or string
Default: auto
|
| chartArea.height |
Chart area height. Type: number or string
Default: auto
|
| colors |
The colors to use for the chart elements. An array of strings, where each element is an HTML
color string, for example: Type: Array of strings
Default: default colors
|
| enableInteractivity |
Whether the chart throws user-based events or reacts to user interaction. If false, the chart will not throw 'select' or other interaction-based events (but will throw ready or error events), and will not display hovertext or otherwise change depending on user input. Type: boolean
Default: true
|
| fontSize |
The default font size, in pixels, of all text in the chart. You can override this using properties for specific chart elements. Type: number
Default: automatic
|
| fontName |
The default font face for all text in the chart. You can override this using properties for specific chart elements. Type: string
Default: 'Arial'
|
| forceIFrame |
Draws the chart inside an inline frame. (Note that on IE8, this option is ignored; all IE8 charts are drawn in i-frames.) Type: boolean
Default: false
|
| height |
Height of the chart, in pixels. Type: number
Default: height of the containing element
|
| is3D |
If true, displays a three-dimensional chart. Type: boolean
Default: false
|
| legend |
An object with members to configure various aspects of the legend. To specify properties of this object, you can use object literal notation, as shown here: {position: 'top', textStyle: {color: 'blue', fontSize: 16}}
Type: object
Default: null
|
| legend.alignment |
Alignment of the legend. Can be one of the following:
Start, center, and end are relative to the style -- vertical or horizontal -- of the legend. For example, in a 'right' legend, 'start' and 'end' are at the top and bottom, respectively; for a 'top' legend, 'start' and 'end' would be at the left and right of the area, respectively. The default value depends on the legend's position. For 'bottom' legends, the default is 'center'; other legends default to 'start'. Type: string
Default: automatic
|
| legend.position |
Position of the legend. Can be one of the following:
Type: string
Default: 'right'
|
| legend.maxLines |
Maximum number of lines in the legend. Set this to a number greater than one to add lines to your legend. Note: The exact logic used to determine the actual number of lines rendered is still in flux. This option currently works only when legend.position is 'top'. Type: number
Default: 1
|
| legend.textStyle |
An object that specifies the legend text style. The object has this format:
{ color: <string>,
fontName: <string>,
fontSize: <number>,
bold: <boolean>,
italic: <boolean> }
The Type: object
Default:
{color: 'black', fontName: <global-font-name>, fontSize: <global-font-size>}
|
| pieHole |
If between 0 and 1, displays a donut chart. The hole with have a radius equal to
Type: number
Default: 0
|
| pieSliceBorderColor |
The color of the slice borders. Only applicable when the chart is two-dimensional. Type: string
Default: 'white'
|
| pieSliceText |
The content of the text displayed on the slice. Can be one of the following:
Type: string
Default: 'percentage'
|
| pieSliceTextStyle |
An object that specifies the slice text style. The object has this format: {color: <string>, fontName: <string>, fontSize: <number>}
The Type: object
Default:
{color: 'black', fontName: <global-font-name>, fontSize: <global-font-size>}
|
| pieStartAngle |
The angle, in degrees, to rotate the chart by. The default of Type: number
Default:
0 |
| reverseCategories |
If true, draws slices counterclockwise. The default is to draw clockwise. Type: boolean
Default: false
|
| pieResidueSliceColor |
Color for the combination slice that holds all slices below sliceVisibilityThreshold. Type: string
Default: '#ccc'
|
| pieResidueSliceLabel |
A label for the combination slice that holds all slices below sliceVisibilityThreshold. Type: string
Default: 'Other'
|
| slices |
An array of objects, each describing the format of the corresponding slice in the pie. To
use default values for a slice, specify an empty object (i.e.,
You can specify either an array of objects, each of which applies to the slice in the order given, or you can specify an object where each child has a numeric key indicating which slice it applies to. For example, the following two declarations are identical, and declare the first slice as black and the fourth as red:
slices: [{color: 'black'}, {}, {}, {color: 'red'}]
slices: {0: {color: 'black'}, 3: {color: 'red'}}
Type: Array of objects, or object with nested objects
Default: {}
|
| sliceVisibilityThreshold |
The fractional value of the pie, below which a slice will not show individually. All slices that have not passed this threshold will be combined to a single "Other" slice, whose size is the sum of all their sizes. Default is not to show individually any slice which is smaller than half a degree.
// Slices less than 25% of the pie will be
// combined into an "Other" slice.
sliceVisibilityThreshold: .25
Type: number
Default: Half a degree (.5/360 or 1/720 or .0014)
|
| title |
Text to display above the chart. Type: string
Default: no title
|
| titleTextStyle |
An object that specifies the title text style. The object has this format:
{ color: <string>,
fontName: <string>,
fontSize: <number>,
bold: <boolean>,
italic: <boolean> }
The Type: object
Default:
{color: 'black', fontName: <global-font-name>, fontSize: <global-font-size>}
|
| tooltip |
An object with members to configure various tooltip elements. To specify properties of this object, you can use object literal notation, as shown here: {textStyle: {color: '#FF0000'}, showColorCode: true}
Type: object
Default: null
|
| tooltip.ignoreBounds |
If set to Note: This only applies to HTML tooltips. If this is enabled with SVG tooltips, any overflow outside of the chart bounds will be cropped. See Customizing Tooltip Content for more details. Type: boolean
Default: false
|
| tooltip.isHtml |
If set to true, use HTML-rendered (rather than SVG-rendered) tooltips. See Customizing Tooltip Content for more details. Note: customization of the HTML tooltip content via the tooltip column data role is not supported by the Bubble Chart visualization. Type: boolean
Default: false
|
| tooltip.showColorCode |
If true, show colored squares next to the slice information in the tooltip. Type: boolean
Default: false
|
| tooltip.text |
What information to display when the user hovers over a pie slice. The following values are supported:
Type: string
Default: 'both'
|
| tooltip.textStyle |
An object that specifies the tooltip text style. The object has this format:
{ color: <string>,
fontName: <string>,
fontSize: <number>,
bold: <boolean>,
italic: <boolean> }
The Type: object
Default:
{color: 'black', fontName: <global-font-name>, fontSize: <global-font-size>}
|
| tooltip.trigger |
The user interaction that causes the tooltip to be displayed:
Type: string
Default: 'focus'
|
| width |
Width of the chart, in pixels. Type: number
Default: width of the containing element
|
Methods
| Method | |
|---|---|
draw(data, options) |
Draws the chart. The chart accepts further method calls only after the
Return Type: none
|
getAction(actionID) |
Returns the tooltip action object with the requested Return Type: object
|
getBoundingBox(id) |
Returns an object containing the left, top, width, and height of chart element
Values are relative to the container of the chart. Call this after the chart is drawn. Return Type: object
|
getChartAreaBoundingBox() |
Returns an object containing the left, top, width, and height of the chart content (i.e., excluding labels and legend):
Values are relative to the container of the chart. Call this after the chart is drawn. Return Type: object
|
getChartLayoutInterface() |
Returns an object containing information about the onscreen placement of the chart and its elements. The following methods can be called on the returned object:
Call this after the chart is drawn. Return Type: object
|
getHAxisValue(xPosition, optional_axis_index) |
Returns the horizontal data value at Example: Call this after the chart is drawn. Return Type: number
|
getImageURI() |
Returns the chart serialized as an image URI. Call this after the chart is drawn. See Printing PNG Charts. Return Type: string
|
getSelection() |
Returns an array of the selected chart entities.
Selectable entities are slices and legend entries.
For this chart, only one entity can be selected at any given moment.
Return Type: Array of selection elements
|
getVAxisValue(yPosition, optional_axis_index) |
Returns the vertical data value at Example: Call this after the chart is drawn. Return Type: number
|
getXLocation(dataValue, optional_axis_index) |
Returns the pixel x-coordinate of Example: Call this after the chart is drawn. Return Type: number
|
getYLocation(dataValue, optional_axis_index) |
Returns the pixel y-coordinate of Example: Call this after the chart is drawn. Return Type: number
|
removeAction(actionID) |
Removes the tooltip action with the requested Return Type:
none |
setAction(action) |
Sets a tooltip action to be executed when the user clicks on the action text.
The
Any and all tooltip actions should be set prior to calling the chart's Return Type:
none |
setSelection() |
Selects the specified chart entities. Cancels any previous selection.
Selectable entities are slices and legend entries.
For this chart, only one entity can be selected at a time.
Return Type: none
|
clearChart() |
Clears the chart, and releases all of its allocated resources. Return Type: none
|
Events
For more information on how to use these events, see Basic Interactivity, Handling Events, and Firing Events.
| Name | |
|---|---|
click |
Fired when the user clicks inside the chart. Can be used to identify when the title, data elements, legend entries, axes, gridlines, or labels are clicked. Properties: targetID
|
error |
Fired when an error occurs when attempting to render the chart. Properties: id, message
|
onmouseover |
Fired when the user mouses over a visual entity. Passes back the row and column indices of the corresponding data table element. A slice or legend entry correlates to a row in the data table (column index is null). Properties: row, column
|
onmouseout |
Fired when the user mouses away from a visual entity. Passes back the row and column indices of the corresponding data table element. A slice or legend entry correlates to a row in the data table (column index is null). Properties: row, column
|
ready |
The chart is ready for external method calls. If you want to interact with the chart, and
call methods after you draw it, you should set up a listener for this event before you
call the Properties: none
|
select |
Fired when the user clicks a visual entity. To learn what has been selected, call
Properties: none
|
Data Policy
All code and data are processed and rendered in the browser. No data is sent to any server.