---
metadata:
  - name: generator
    content: Diplodoc Platform v5.39.1
alternate:
  - https://yandex.com.tr/dev/jsapi-v2-1/doc/en/v2-1/examples/cases/clusterer_create.md
  - https://yandex.com.tr/dev/jsapi-v2-1/doc/ru/v2-1/examples/cases/clusterer_create.md
---
> **Documentation Index:** Fetch the complete configuration index at https://yandex.com.tr/dev/jsapi-v2-1/doc/en/llms.txt

# Creating a clusterer

<iframe id="LIVE-EXAMPLE" style="width:100%;height: 400px;border-radius: 8px;border: 1px solid rgba(92, 94, 102, 0.14);" frameBorder="0" src="https://yastatic.net/s3/front-maps-static/maps-front-jsapi-v2-1/examples/2/out/s3-cases/en/clusterer_create/index.html" allow="fullscreen"></iframe>

<a target="_blank" rel="noopener noreferrer" style="display: inline-block;margin-top: 10px;cursor: pointer;border-radius: 4px;padding: 9px 12px;background: #151515;color: white;text-decoration: none;font-weight: 500" href="https://codesandbox.io/p/sandbox/kds6fs?file=index.html">Open in CodeSandbox</a>

<div id="references">
    <a href="https://yandex.ru/dev/jsapi-v2-1/doc/en/v2-1/ref/reference/ready">ready</a>,
    <a href="https://yandex.ru/dev/jsapi-v2-1/doc/en/v2-1/ref/reference/Map">Map</a>,
    <a href="https://yandex.ru/dev/jsapi-v2-1/doc/en/v2-1/ref/reference/GeoObjectCollection">GeoObjectCollection</a>,
    <a href="https://yandex.ru/dev/jsapi-v2-1/doc/en/v2-1/ref/reference/Clusterer">Clusterer</a>,
    <a href="https://yandex.ru/dev/jsapi-v2-1/doc/en/v2-1/ref/reference/Placemark">Placemark</a>,
    <a href="https://yandex.ru/dev/jsapi-v2-1/doc/en/v2-1/ref/reference/map.GeoObjects">map.GeoObjects</a>
</div>
<p>
    The <a href="https://yandex.ru/dev/jsapi-v2-1/doc/en/v2-1/dg/concepts/geoobjects#clusters">clusterer</a> is used for combining closely positioned placemarks in a group (cluster).
</p>
<p>
    The clusterer is implemented by the <a href="https://yandex.ru/dev/jsapi-v2-1/doc/en/v2-1/ref/reference/Clusterer">Clusterer</a> class. The clusterer options can be passed to the constructor as parameters: the style of the cluster icon, the size of its cell, and so on. For the list of available options, see the corresponding <a href="https://yandex.ru/dev/jsapi-v2-1/doc/en/v2-1/ref/reference/Clusterer#constructor-summary">section</a> in the reference guide.</p>
<p>
    To add geo objects to the clusterer, use the <a href="https://yandex.ru/dev/jsapi-v2-1/doc/en/v2-1/ref/reference/Clusterer#add">add</a> method. Either a separate geo object or an array of geo objects can be passed as the parameter.
</p>

{% list tabs %}

-   index.html

    ```html
    <!DOCTYPE html>
    <html>
        <head>
            <title>Examples. Adding a placemark clusterer to the map</title>
            <meta
                http-equiv="Content-Type"
                content="text/html; charset=UTF-8"
            />
            <!--
            Set your own API-key. Testing key is not valid for other web-sites and services.
            Get your API-key on the Developer Dashboard: https://developer.tech.yandex.ru/keys/
        -->
            
            
            
        </head>
        <body>
            <div id="map"></div>
        </body>
    </html>
    ```

-   clusterer_create.js

    ```js
    ymaps.ready(function () {
        var myMap = new ymaps.Map(
                "map",
                {
                    center: [55.751574, 37.573856],
                    zoom: 9,
                    behaviors: ["default", "scrollZoom"],
                },
                {
                    searchControlProvider: "yandex#search",
                }
            ),
            /**
             * Creating a clusterer by calling a constructor function.
             * A list of all options is available in the documentation.
             * @see https://api.yandex.com/maps/doc/jsapi/2.1/ref/reference/Clusterer.xml#constructor-summary
             */
            clusterer = new ymaps.Clusterer({
                /**
                 * Only cluster styles can be specified via the clusterer;
                 * for placemark styles, each placemark must be set separately.
                 * @see https://api.yandex.com/maps/doc/jsapi/2.1/ref/reference/option.presetStorage.xml
                 */
                preset: "islands#invertedVioletClusterIcons",
                /**
                 * Setting to "true" if we want to cluster only points with the same coordinates.
                 */
                groupByCoordinates: false,
                /**
                 * Setting cluster options in the clusterer with the "cluster" prefix.
                 * @see https://api.yandex.com/maps/doc/jsapi/2.1/ref/reference/ClusterPlacemark.xml
                 */
                clusterDisableClickZoom: true,
                clusterHideIconOnBalloonOpen: false,
                geoObjectHideIconOnBalloonOpen: false,
            }),
            /**
             * The function returns an object containing the placemark data.
             * The clusterCaption data field will appear in the list of geo objects in the cluster balloon.
             * The balloonContentBody field is the data source for the balloon content.
             * Both fields support HTML markup.
             * For a list of data fields that are used by the standard content layouts for
             * geo objects' placemark icons and balloons, see the documentation.
             * @see https://api.yandex.com/maps/doc/jsapi/2.1/ref/reference/GeoObject.xml
             */
            getPointData = function (index) {
                return {
                    balloonContentHeader:
                        '<font size=3><b><a target="_blank" href="https://yandex.com">Your link can be here</a></b></font>',
                    balloonContentBody:
                        '<p>Your name: <input name="login"></p><p>The phone in the format 2xxx-xxx:  <input></p><p><input type="submit" value="Send"></p>',
                    balloonContentFooter:
                        "<font size=1>Information provided by: placemark </font> balloon <strong> " +
                        index +
                        "</strong>",
                    clusterCaption: "placemark <strong>" + index + "</strong>",
                };
            },
            /**
             * The function returns an object containing the placemark options.
             * All options that are supported by the geo objects can be found in the documentation.
             * @see https://api.yandex.com/maps/doc/jsapi/2.1/ref/reference/GeoObject.xml
             */
            getPointOptions = function () {
                return {
                    preset: "islands#violetIcon",
                };
            },
            points = [
                [55.831903, 37.411961],
                [55.763338, 37.565466],
                [55.763338, 37.565466],
                [55.744522, 37.616378],
                [55.780898, 37.642889],
                [55.793559, 37.435983],
                [55.800584, 37.675638],
                [55.716733, 37.589988],
                [55.775724, 37.56084],
                [55.822144, 37.433781],
                [55.87417, 37.669838],
                [55.71677, 37.482338],
                [55.78085, 37.75021],
                [55.810906, 37.654142],
                [55.865386, 37.713329],
                [55.847121, 37.525797],
                [55.778655, 37.710743],
                [55.623415, 37.717934],
                [55.863193, 37.737],
                [55.86677, 37.760113],
                [55.698261, 37.730838],
                [55.6338, 37.564769],
                [55.639996, 37.5394],
                [55.69023, 37.405853],
                [55.77597, 37.5129],
                [55.775777, 37.44218],
                [55.811814, 37.440448],
                [55.751841, 37.404853],
                [55.627303, 37.728976],
                [55.816515, 37.597163],
                [55.664352, 37.689397],
                [55.679195, 37.600961],
                [55.673873, 37.658425],
                [55.681006, 37.605126],
                [55.876327, 37.431744],
                [55.843363, 37.778445],
                [55.875445, 37.549348],
                [55.662903, 37.702087],
                [55.746099, 37.434113],
                [55.83866, 37.712326],
                [55.774838, 37.415725],
                [55.871539, 37.630223],
                [55.657037, 37.571271],
                [55.691046, 37.711026],
                [55.803972, 37.65961],
                [55.616448, 37.452759],
                [55.781329, 37.442781],
                [55.844708, 37.74887],
                [55.723123, 37.406067],
                [55.858585, 37.48498],
            ],
            geoObjects = [];

        /**
         * Data is passed to the placemark constructor as the second parameter, and options are third.
         * @see https://api.yandex.com/maps/doc/jsapi/2.1/ref/reference/Placemark.xml#constructor-summary
         */
        for (var i = 0, len = points.length; i < len; i++) {
            geoObjects[i] = new ymaps.Placemark(
                points[i],
                getPointData(i),
                getPointOptions()
            );
        }

        /**
         * You can change clusterer options after creation.
         */
        clusterer.options.set({
            gridSize: 80,
            clusterDisableClickZoom: true,
        });

        /**
         * You can add a JavaScript array of placemarks (not a geo collection) or a single placemark to the clusterer.
         * @see https://api.yandex.com/maps/doc/jsapi/2.1/ref/reference/Clusterer.xml#add
         */
        clusterer.add(geoObjects);
        myMap.geoObjects.add(clusterer);

        /**
         * Positioning the map so that all objects become visible.
         */

        myMap.setBounds(clusterer.getBounds(), {
            checkZoomRange: true,
        });
    });
    ```

{% endlist %}
