Примеры

Building the area on the map that is reachable from the point of departure/to the point of arrival.
<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <title>2GIS isochrone API</title>
        <meta name="description" content="Several destination points example" />
        <style>
            html,
            body,
            #container {
                margin: 0;
                width: 100%;
                height: 100%;
                overflow: hidden;
            }

            select {
                border: 0;
                padding: 4px 10px;
                font-size: 13px;
                box-shadow: 0 1px 3px 0 rgba(38, 38, 38, 0.5);
                border-radius: 4px;
            }
        </style>
    </head>
    <body>
        <div id="container"></div>
        <div id="tooltip"></div>
        <script src="https://mapgl.2gis.com/api/js/v1"></script>
        <script>
            const reqUrl = `https://routing.api.2gis.com/get_hull?key=Your directions API access key`;
            const start = {
                lat: 55.76259,
                lon: 37.668598,
            };

            const map = new mapgl.Map('container', {
                center: [start.lon, start.lat],
                zoom: 11,
                key: 'Your API access key',
            });

            const controlsHtml = `<div class="controls">
                    <select name="reverse">
                        <option value="to">Go here</option>
                        <option value="from" selected>Go from here</option>
                    </select>
                    <select name="mode">
                        <option value="walking">on foot</option>
                        <option value="driving" selected>by car</option>
                    </select>
                    <select name="duration">
                        <option value="600" selected>10 min</option>
                        <option value="1200">20 min</option>
                    </select>
                </div>`;
            new mapgl.Control(map, controlsHtml, {
                position: 'topLeft',
            });

            const reverseSelectEl = document.querySelector('select[name="reverse"]');
            const modeSelectEl = document.querySelector('select[name="mode"]');
            const durationSelectEl = document.querySelector('select[name="duration"]');

            const startMarker = new mapgl.Marker(map, {
                coordinates: [start.lon, start.lat],
            });

            let polyline;
            function renderGeometries(geometries) {
                if (polyline) {
                    polyline.destroy();
                }
                polyline = new mapgl.Polyline(map, {
                    coordinates: geometries.map((item) => [item.lon, item.lat]),
                    width: 2,
                    color: '#00b7ff',
                });
            }
            window.addEventListener('change', (evt) => {
                if (evt.target.name === 'reverse' || evt.target.name === 'mode' || evt.target.name === 'duration') {
                    updateGeometries();
                }
            });
            updateGeometries();

            function updateGeometries() {
                const reverse = reverseSelectEl.value === 'to';
                const mode = modeSelectEl.value;
                const duration = Number(durationSelectEl.value);

                fetch(reqUrl, {
                    method: 'POST',
                    body: JSON.stringify({
                        start,
                        durations: [duration],
                        mode,
                        reverse,
                        start_time: new Date().toISOString(),
                    }),
                })
                    .then((res) => res.json())
                    .then((parsed) => renderGeometries(parsed.geometries[0].points))
                    .catch((err) => console.error('error', err));
            }
        </script>
    </body>
</html>