Slowly fly to a location
Use flyTo
with flyOptions to slowly zoom to a location.
<!DOCTYPE html><html><head><meta charset="utf-8" /><title>Slowly fly to a location</title><meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" /><script src="https://cdn.jsdelivr.net/npm/@goongmaps/goong-js@1.0.9/dist/goong-js.js"></script><link href="https://cdn.jsdelivr.net/npm/@goongmaps/goong-js@1.0.9/dist/goong-js.css" rel="stylesheet" /><style> body { margin: 0; padding: 0; } #map { position: absolute; top: 0; bottom: 0; width: 100%; }</style></head><body><style>#fly {display: block;position: relative;margin: 0px auto;width: 50%;height: 40px;padding: 10px;border: none;border-radius: 3px;font-size: 12px;text-align: center;color: #fff;background: #ee8a65;}</style><div id="map"></div><br /><button id="fly">Fly</button><script>var start = [-74.5, 40];var end = [74.5, 40];goongjs.accessToken = '8qzxZAuxcsctSlmOszInchP1A5GrmRBHJwCBCjO6';var map = new goongjs.Map({container: 'map',style: 'https://tiles.goong.io/assets/goong_map_web.json',center: start,zoom: 9}); var isAtStart = true; document.getElementById('fly').addEventListener('click', function () {// depending on whether we're currently at point a or b, aim for// point a or bvar target = isAtStart ? end : start; // and now we're at the opposite pointisAtStart = !isAtStart; map.flyTo({// These options control the ending camera position: centered at// the target, at zoom level 9, and north up.center: target,zoom: 9,bearing: 0, // These options control the flight curve, making it move// slowly and zoom out almost completely before starting// to pan.speed: 0.2, // make the flying slowcurve: 1, // change the speed at which it zooms out // This can be any easing function: it takes a number between// 0 and 1 and returns another number between 0 and 1.easing: function (t) {return t;}, // this animation is considered essential with respect to prefers-reduced-motionessential: true});});</script> </body></html>