This example overlays a heatmap on top of the map. It includes buttons that allow users to change the appearance of the heatmap.
Read the documentation.
TypeScript
// This example requires the Visualization library. Include the libraries=visualization
// parameter when you first load the API. For example:
// <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=visualization">
let map: google.maps.Map, heatmap: google.maps.visualization.HeatmapLayer;
function initMap(): void {
map = new google.maps.Map(document.getElementById("map") as HTMLElement, {
zoom: 13,
center: { lat: 37.775, lng: -122.434 },
mapTypeId: "satellite",
});
heatmap = new google.maps.visualization.HeatmapLayer({
data: getPoints(),
map: map,
});
}
function toggleHeatmap() {
heatmap.setMap(heatmap.getMap() ? null : map);
}
function changeGradient() {
const gradient = [
"rgba(0, 255, 255, 0)",
"rgba(0, 255, 255, 1)",
"rgba(0, 191, 255, 1)",
"rgba(0, 127, 255, 1)",
"rgba(0, 63, 255, 1)",
"rgba(0, 0, 255, 1)",
"rgba(0, 0, 223, 1)",
"rgba(0, 0, 191, 1)",
"rgba(0, 0, 159, 1)",
"rgba(0, 0, 127, 1)",
"rgba(63, 0, 91, 1)",
"rgba(127, 0, 63, 1)",
"rgba(191, 0, 31, 1)",
"rgba(255, 0, 0, 1)",
];
heatmap.set("gradient", heatmap.get("gradient") ? null : gradient);
}
function changeRadius() {
heatmap.set("radius", heatmap.get("radius") ? null : 20);
}
function changeOpacity() {
heatmap.set("opacity", heatmap.get("opacity") ? null : 0.2);
}
// Heatmap data: 500 Points
function getPoints() {
return [
new google.maps.LatLng(37.782551, -122.445368),
new google.maps.LatLng(37.782745, -122.444586),
new google.maps.LatLng(37.782842, -122.443688),
new google.maps.LatLng(37.782919, -122.442815),
new google.maps.LatLng(37.782992, -122.442112),
new google.maps.LatLng(37.7831, -122.441461),
new google.maps.LatLng(37.783206, -122.440829),
new google.maps.LatLng(37.783273, -122.440324),
new google.maps.LatLng(37.783316, -122.440023),
new google.maps.LatLng(37.783357, -122.439794),
new google.maps.LatLng(37.783371, -122.439687),
new google.maps.LatLng(37.783368, -122.439666),
new google.maps.LatLng(37.783383, -122.439594),
new google.maps.LatLng(37.783508, -122.439525),
new google.maps.LatLng(37.783842, -122.439591),
new google.maps.LatLng(37.784147, -122.439668),
new google.maps.LatLng(37.784206, -122.439686),
new google.maps.LatLng(37.784386, -122.43979),
new google.maps.LatLng(37.784701, -122.439902),
new google.maps.LatLng(37.784965, -122.439938),
new google.maps.LatLng(37.78501, -122.439947),
new google.maps.LatLng(37.78536, -122.439952),
new google.maps.LatLng(37.785715, -122.44003),
new google.maps.LatLng(37.786117, -122.440119),
new google.maps.LatLng(37.786564, -122.440209),
new google.maps.LatLng(37.786905, -122.44027),
new google.maps.LatLng(37.786956, -122.440279),
new google.maps.LatLng(37.800224, -122.43352),
new google.maps.LatLng(37.800155, -122.434101),
new google.maps.LatLng(37.80016, -122.43443),
new google.maps.LatLng(37.800378, -122.434527),
new google.maps.LatLng(37.800738, -122.434598),
new google.maps.LatLng(37.800938, -122.43465),
new google.maps.LatLng(37.801024, -122.434889),
new google.maps.LatLng(37.800955, -122.435392),
new google.maps.LatLng(37.800886, -122.435959),
new google.maps.LatLng(37.800811, -122.436275),
new google.maps.LatLng(37.800788, -122.436299),
new google.maps.LatLng(37.800719, -122.436302),
new google.maps.LatLng(37.800702, -122.436298),
new google.maps.LatLng(37.800661, -122.436273),
new google.maps.LatLng(37.800395, -122.436172),
new google.maps.LatLng(37.800228, -122.436116),
new google.maps.LatLng(37.800169, -122.43613),
new google.maps.LatLng(37.800066, -122.436167),
new google.maps.LatLng(37.784345, -122.422922),
new google.maps.LatLng(37.784389, -122.422926),
new google.maps.LatLng(37.784437, -122.422924),
new google.maps.LatLng(37.784746, -122.422818),
new google.maps.LatLng(37.785436, -122.422959),
new google.maps.LatLng(37.78612, -122.423112),
new google.maps.LatLng(37.786433, -122.423029),
new google.maps.LatLng(37.786631, -122.421213),
new google.maps.LatLng(37.78666, -122.421033),
new google.maps.LatLng(37.786801, -122.420141),
new google.maps.LatLng(37.786823, -122.420034),
new google.maps.LatLng(37.786831, -122.419916),
new google.maps.LatLng(37.787034, -122.418208),
new google.maps.LatLng(37.787056, -122.418034),
new google.maps.LatLng(37.787169, -122.417145),
new google.maps.LatLng(37.787217, -122.416715),
new google.maps.LatLng(37.786144, -122.416403),
new google.maps.LatLng(37.785292, -122.416257),
new google.maps.LatLng(37.780666, -122.390374),
new google.maps.LatLng(37.780501, -122.391281),
new google.maps.LatLng(37.780148, -122.392052),
new google.maps.LatLng(37.780173, -122.391148),
new google.maps.LatLng(37.780693, -122.390592),
new google.maps.LatLng(37.781261, -122.391142),
new google.maps.LatLng(37.781808, -122.39173),
new google.maps.LatLng(37.78234, -122.392341),
new google.maps.LatLng(37.782812, -122.393022),
new google.maps.LatLng(37.7833, -122.393672),
new google.maps.LatLng(37.783809, -122.394275),
new google.maps.LatLng(37.784246, -122.394979),
new google.maps.LatLng(37.784791, -122.395958),
new google.maps.LatLng(37.785675, -122.396746),
new google.maps.LatLng(37.786262, -122.39578),
new google.maps.LatLng(37.786776, -122.395093),
new google.maps.LatLng(37.787282, -122.394426),
new google.maps.LatLng(37.787783, -122.393767),
new google.maps.LatLng(37.788343, -122.393184),
new google.maps.LatLng(37.788895, -122.392506),
new google.maps.LatLng(37.789371, -122.391701),
new google.maps.LatLng(37.789722, -122.390952),
new google.maps.LatLng(37.790315, -122.390305),
new google.maps.LatLng(37.790738, -122.389616),
new google.maps.LatLng(37.779448, -122.438702),
new google.maps.LatLng(37.779023, -122.438585),
new google.maps.LatLng(37.778542, -122.438492),
new google.maps.LatLng(37.7781, -122.438411),
new google.maps.LatLng(37.777986, -122.438376),
new google.maps.LatLng(37.77768, -122.438313),
new google.maps.LatLng(37.777316, -122.438273),
new google.maps.LatLng(37.777135, -122.438254),
new google.maps.LatLng(37.776987, -122.438303),
new google.maps.LatLng(37.776946, -122.438404),
new google.maps.LatLng(37.776944, -122.438467),
new google.maps.LatLng(37.776892, -122.438459),
new google.maps.LatLng(37.776842, -122.438442),
new google.maps.LatLng(37.776822, -122.438391),
new google.maps.LatLng(37.776814, -122.438412),
new google.maps.LatLng(37.776787, -122.438628),
new google.maps.LatLng(37.776729, -122.43865),
new google.maps.LatLng(37.776759, -122.438677),
new google.maps.LatLng(37.776772, -122.438498),
new google.maps.LatLng(37.776787, -122.438389),
new google.maps.LatLng(37.776848, -122.438283),
new google.maps.LatLng(37.77687, -122.438239),
new google.maps.LatLng(37.777015, -122.438198),
new google.maps.LatLng(37.777333, -122.438256),
new google.maps.LatLng(37.777595, -122.438308),
new google.maps.LatLng(37.777797, -122.438344),
new google.maps.LatLng(37.77816, -122.438442),
new google.maps.LatLng(37.778414, -122.438508),
new google.maps.LatLng(37.778445, -122.438516),
new google.maps.LatLng(37.778503, -122.438529),
new google.maps.LatLng(37.778607, -122.438549),
new google.maps.LatLng(37.77867, -122.438644),
new google.maps.LatLng(37.778847, -122.438706),
new google.maps.LatLng(37.77924, -122.438744),
new google.maps.LatLng(37.779738, -122.438822),
new google.maps.LatLng(37.780201, -122.438882),
new google.maps.LatLng(37.7804, -122.438905),
new google.maps.LatLng(37.780501, -122.438921),
new google.maps.LatLng(37.780892, -122.438986),
new google.maps.LatLng(37.781446, -122.439087),
new google.maps.LatLng(37.781985, -122.439199),
new google.maps.LatLng(37.782239, -122.439249),
new google.maps.LatLng(37.782286, -122.439266),
new google.maps.LatLng(37.797847, -122.429388),
new google.maps.LatLng(37.797874, -122.42918),
new google.maps.LatLng(37.797885, -122.429069),
new google.maps.LatLng(37.797887, -122.42905),
new google.maps.LatLng(37.797933, -122.428954),
new google.maps.LatLng(37.798242, -122.42899),
new google.maps.LatLng(37.798617, -122.429075),
new google.maps.LatLng(37.798719, -122.429092),
new google.maps.LatLng(37.798944, -122.429145),
new google.maps.LatLng(37.79932, -122.429251),
new google.maps.LatLng(37.79959, -122.429309),
new google.maps.LatLng(37.799677, -122.429324),
new google.maps.LatLng(37.799966, -122.42936),
new google.maps.LatLng(37.800288, -122.42943),
new google.maps.LatLng(37.800443, -122.429461),
new google.maps.LatLng(37.800465, -122.429474),
new google.maps.LatLng(37.800644, -122.42954),
new google.maps.LatLng(37.800948, -122.42962),
new google.maps.LatLng(37.801242, -122.429685),
new google.maps.LatLng(37.801375, -122.429702),
new google.maps.LatLng(37.8014, -122.429703),
new google.maps.LatLng(37.801453, -122.429707),
new google.maps.LatLng(37.801473, -122.429709),
new google.maps.LatLng(37.801532, -122.429707),
new google.maps.LatLng(37.801852, -122.429729),
new google.maps.LatLng(37.802173, -122.429789),
new google.maps.LatLng(37.802459, -122.429847),
new google.maps.LatLng(37.802554, -122.429825),
new google.maps.LatLng(37.802647, -122.429549),
new google.maps.LatLng(37.802693, -122.429179),
new google.maps.LatLng(37.802729, -122.428751),
new google.maps.LatLng(37.766104, -122.409291),
new google.maps.LatLng(37.766103, -122.409268),
new google.maps.LatLng(37.766138, -122.409229),
new google.maps.LatLng(37.766183, -122.409231),
new google.maps.LatLng(37.766153, -122.409276),
new google.maps.LatLng(37.766005, -122.409365),
new google.maps.LatLng(37.765897, -122.40957),
new google.maps.LatLng(37.765767, -122.409739),
new google.maps.LatLng(37.765693, -122.410389),
new google.maps.LatLng(37.765615, -122.411201),
new google.maps.LatLng(37.765533, -122.412121),
new google.maps.LatLng(37.765467, -122.412939),
new google.maps.LatLng(37.765444, -122.414821),
new google.maps.LatLng(37.765444, -122.414964),
new google.maps.LatLng(37.765318, -122.415424),
new google.maps.LatLng(37.763961, -122.415296),
new google.maps.LatLng(37.763115, -122.415196),
new google.maps.LatLng(37.762967, -122.415183),
new google.maps.LatLng(37.762278, -122.415127),
new google.maps.LatLng(37.761675, -122.415055),
new google.maps.LatLng(37.760932, -122.414988),
new google.maps.LatLng(37.759337, -122.414862),
new google.maps.LatLng(37.773187, -122.421922),
new google.maps.LatLng(37.773043, -122.422118),
new google.maps.LatLng(37.773007, -122.422165),
new google.maps.LatLng(37.772979, -122.422219),
new google.maps.LatLng(37.772865, -122.422394),
new google.maps.LatLng(37.772779, -122.422503),
new google.maps.LatLng(37.772676, -122.422701),
new google.maps.LatLng(37.772606, -122.422806),
new google.maps.LatLng(37.772566, -122.42284),
new google.maps.LatLng(37.772508, -122.422852),
new google.maps.LatLng(37.772387, -122.423011),
new google.maps.LatLng(37.772099, -122.423328),
new google.maps.LatLng(37.771704, -122.423783),
new google.maps.LatLng(37.771481, -122.424081),
new google.maps.LatLng(37.7714, -122.424179),
new google.maps.LatLng(37.771352, -122.42422),
new google.maps.LatLng(37.771248, -122.424327),
new google.maps.LatLng(37.770904, -122.424781),
new google.maps.LatLng(37.77052, -122.425283),
new google.maps.LatLng(37.770337, -122.425553),
new google.maps.LatLng(37.770128, -122.425832),
new google.maps.LatLng(37.769756, -122.426331),
new google.maps.LatLng(37.7693, -122.426902),
new google.maps.LatLng(37.769132, -122.427065),
new google.maps.LatLng(37.769092, -122.427103),
new google.maps.LatLng(37.768979, -122.427172),
new google.maps.LatLng(37.768595, -122.427634),
new google.maps.LatLng(37.768372, -122.427913),
new google.maps.LatLng(37.768337, -122.427961),
new google.maps.LatLng(37.768244, -122.428138),
new google.maps.LatLng(37.767942, -122.428581),
new google.maps.LatLng(37.767482, -122.429094),
new google.maps.LatLng(37.767031, -122.429606),
new google.maps.LatLng(37.766732, -122.429986),
new google.maps.LatLng(37.76668, -122.430058),
new google.maps.LatLng(37.766633, -122.430109),
new google.maps.LatLng(37.76658, -122.430211),
new google.maps.LatLng(37.766367, -122.430594),
new google.maps.LatLng(37.76591, -122.431137),
new google.maps.LatLng(37.765353, -122.431806),
new google.maps.LatLng(37.764962, -122.432298),
new google.maps.LatLng(37.764868, -122.432486),
new google.maps.LatLng(37.764518, -122.432913),
new google.maps.LatLng(37.763435, -122.434173),
new google.maps.LatLng(37.762847, -122.434953),
new google.maps.LatLng(37.762291, -122.435935),
new google.maps.LatLng(37.762224, -122.436074),
new google.maps.LatLng(37.761957, -122.436892),
new google.maps.LatLng(37.761652, -122.438886),
new google.maps.LatLng(37.761284, -122.439955),
new google.maps.LatLng(37.76121, -122.440068),
new google.maps.LatLng(37.761064, -122.44072),
new google.maps.LatLng(37.76104, -122.441411),
new google.maps.LatLng(37.761048, -122.442324),
new google.maps.LatLng(37.760851, -122.443118),
new google.maps.LatLng(37.759977, -122.444591),
new google.maps.LatLng(37.759913, -122.444698),
new google.maps.LatLng(37.759623, -122.445065),
new google.maps.LatLng(37.758902, -122.445158),
new google.maps.LatLng(37.758428, -122.44457),
new google.maps.LatLng(37.757687, -122.44334),
new google.maps.LatLng(37.757583, -122.44324),
new google.maps.LatLng(37.757019, -122.442787),
new google.maps.LatLng(37.756603, -122.442322),
new google.maps.LatLng(37.75638, -122.441602),
new google.maps.LatLng(37.75579, -122.441382),
new google.maps.LatLng(37.754493, -122.442133),
new google.maps.LatLng(37.754361, -122.442206),
new google.maps.LatLng(37.753719, -122.44265),
new google.maps.LatLng(37.753096, -122.442915),
new google.maps.LatLng(37.751617, -122.443211),
new google.maps.LatLng(37.751496, -122.443246),
new google.maps.LatLng(37.750733, -122.443428),
new google.maps.LatLng(37.750126, -122.443536),
new google.maps.LatLng(37.750103, -122.443784),
new google.maps.LatLng(37.75039, -122.44401),
new google.maps.LatLng(37.750448, -122.444013),
new google.maps.LatLng(37.750536, -122.44404),
new google.maps.LatLng(37.750493, -122.444141),
new google.maps.LatLng(37.790859, -122.402808),
new google.maps.LatLng(37.790864, -122.402768),
new google.maps.LatLng(37.790995, -122.402539),
new google.maps.LatLng(37.791148, -122.402172),
new google.maps.LatLng(37.791385, -122.401312),
new google.maps.LatLng(37.791405, -122.400776),
new google.maps.LatLng(37.791288, -122.400528),
new google.maps.LatLng(37.791113, -122.400441),
new google.maps.LatLng(37.791027, -122.400395),
new google.maps.LatLng(37.791094, -122.400311),
new google.maps.LatLng(37.791211, -122.400183),
new google.maps.LatLng(37.79106, -122.399334),
new google.maps.LatLng(37.790538, -122.398718),
new google.maps.LatLng(37.790095, -122.398086),
new google.maps.LatLng(37.789644, -122.39736),
new google.maps.LatLng(37.789254, -122.396844),
new google.maps.LatLng(37.788855, -122.396397),
new google.maps.LatLng(37.788483, -122.395963),
new google.maps.LatLng(37.788015, -122.395365),
new google.maps.LatLng(37.787558, -122.394735),
new google.maps.LatLng(37.787472, -122.394323),
new google.maps.LatLng(37.78763, -122.394025),
new google.maps.LatLng(37.787767, -122.393987),
new google.maps.LatLng(37.787486, -122.394452),
new google.maps.LatLng(37.786977, -122.395043),
new google.maps.LatLng(37.786583, -122.395552),
new google.maps.LatLng(37.78654, -122.39561),
new google.maps.LatLng(37.786516, -122.395659),
new google.maps.LatLng(37.786378, -122.395707),
new google.maps.LatLng(37.786044, -122.395362),
new google.maps.LatLng(37.785598, -122.394715),
new google.maps.LatLng(37.785321, -122.394361),
new google.maps.LatLng(37.785207, -122.394236),
new google.maps.LatLng(37.785751, -122.394062),
new google.maps.LatLng(37.785996, -122.393881),
new google.maps.LatLng(37.786092, -122.39383),
new google.maps.LatLng(37.785998, -122.393899),
new google.maps.LatLng(37.785114, -122.394365),
new google.maps.LatLng(37.785022, -122.394441),
new google.maps.LatLng(37.784823, -122.394635),
new google.maps.LatLng(37.784719, -122.394629),
new google.maps.LatLng(37.785069, -122.394176),
new google.maps.LatLng(37.7855, -122.39365),
new google.maps.LatLng(37.78577, -122.393291),
new google.maps.LatLng(37.785839, -122.393159),
new google.maps.LatLng(37.782651, -122.400628),
new google.maps.LatLng(37.782616, -122.400599),
new google.maps.LatLng(37.782702, -122.40047),
new google.maps.LatLng(37.782915, -122.400192),
new google.maps.LatLng(37.783137, -122.399887),
new google.maps.LatLng(37.783414, -122.399519),
new google.maps.LatLng(37.783629, -122.399237),
new google.maps.LatLng(37.783688, -122.399157),
new google.maps.LatLng(37.783716, -122.399106),
new google.maps.LatLng(37.783798, -122.399072),
new google.maps.LatLng(37.783997, -122.399186),
new google.maps.LatLng(37.784271, -122.399538),
new google.maps.LatLng(37.784577, -122.399948),
new google.maps.LatLng(37.784828, -122.40026),
new google.maps.LatLng(37.784999, -122.400477),
new google.maps.LatLng(37.785113, -122.400651),
new google.maps.LatLng(37.785155, -122.400703),
new google.maps.LatLng(37.785192, -122.400749),
new google.maps.LatLng(37.785278, -122.400839),
new google.maps.LatLng(37.785387, -122.400857),
new google.maps.LatLng(37.785478, -122.40089),
new google.maps.LatLng(37.785526, -122.401022),
new google.maps.LatLng(37.785598, -122.401148),
new google.maps.LatLng(37.785631, -122.401202),
new google.maps.LatLng(37.78566, -122.401267),
new google.maps.LatLng(37.803986, -122.426035),
new google.maps.LatLng(37.804102, -122.425089),
new google.maps.LatLng(37.804211, -122.424156),
new google.maps.LatLng(37.803861, -122.423385),
new google.maps.LatLng(37.803151, -122.423214),
new google.maps.LatLng(37.802439, -122.423077),
new google.maps.LatLng(37.80174, -122.422905),
new google.maps.LatLng(37.801069, -122.422785),
new google.maps.LatLng(37.800345, -122.422649),
new google.maps.LatLng(37.799633, -122.422603),
new google.maps.LatLng(37.79975, -122.4217),
new google.maps.LatLng(37.799885, -122.420854),
new google.maps.LatLng(37.799209, -122.420607),
new google.maps.LatLng(37.795656, -122.400395),
new google.maps.LatLng(37.795203, -122.400304),
new google.maps.LatLng(37.778738, -122.415584),
new google.maps.LatLng(37.778812, -122.415189),
new google.maps.LatLng(37.778824, -122.415092),
new google.maps.LatLng(37.778833, -122.414932),
new google.maps.LatLng(37.778834, -122.414898),
new google.maps.LatLng(37.77874, -122.414757),
new google.maps.LatLng(37.778501, -122.414433),
new google.maps.LatLng(37.778182, -122.414026),
new google.maps.LatLng(37.777851, -122.413623),
new google.maps.LatLng(37.777486, -122.413166),
new google.maps.LatLng(37.777109, -122.412674),
new google.maps.LatLng(37.776743, -122.412186),
new google.maps.LatLng(37.77644, -122.4118),
new google.maps.LatLng(37.776295, -122.411614),
new google.maps.LatLng(37.776158, -122.41144),
new google.maps.LatLng(37.775806, -122.410997),
new google.maps.LatLng(37.775422, -122.410484),
new google.maps.LatLng(37.775126, -122.410087),
new google.maps.LatLng(37.775012, -122.409854),
new google.maps.LatLng(37.775164, -122.409573),
new google.maps.LatLng(37.775498, -122.40918),
new google.maps.LatLng(37.775868, -122.40873),
new google.maps.LatLng(37.776256, -122.40824),
new google.maps.LatLng(37.776519, -122.407928),
new google.maps.LatLng(37.776539, -122.407904),
new google.maps.LatLng(37.776595, -122.407854),
new google.maps.LatLng(37.776853, -122.407547),
new google.maps.LatLng(37.777234, -122.407087),
new google.maps.LatLng(37.777644, -122.406558),
new google.maps.LatLng(37.778066, -122.406017),
new google.maps.LatLng(37.778468, -122.405499),
new google.maps.LatLng(37.778866, -122.404995),
new google.maps.LatLng(37.779295, -122.404455),
new google.maps.LatLng(37.779695, -122.40395),
new google.maps.LatLng(37.779982, -122.403584),
new google.maps.LatLng(37.780295, -122.403223),
new google.maps.LatLng(37.780664, -122.402766),
new google.maps.LatLng(37.781043, -122.402288),
new google.maps.LatLng(37.781399, -122.401823),
new google.maps.LatLng(37.781727, -122.401407),
new google.maps.LatLng(37.781853, -122.401247),
new google.maps.LatLng(37.781894, -122.401195),
new google.maps.LatLng(37.782076, -122.400977),
new google.maps.LatLng(37.782338, -122.400603),
new google.maps.LatLng(37.782666, -122.400133),
new google.maps.LatLng(37.783048, -122.399634),
new google.maps.LatLng(37.78345, -122.399198),
new google.maps.LatLng(37.783791, -122.398998),
new google.maps.LatLng(37.784177, -122.398959),
new google.maps.LatLng(37.784388, -122.398971),
new google.maps.LatLng(37.784404, -122.399128),
new google.maps.LatLng(37.784586, -122.399524),
new google.maps.LatLng(37.784835, -122.399927),
new google.maps.LatLng(37.785116, -122.400307),
new google.maps.LatLng(37.785282, -122.400539),
new google.maps.LatLng(37.785346, -122.400692),
new google.maps.LatLng(37.765769, -122.407201),
new google.maps.LatLng(37.76579, -122.407414),
new google.maps.LatLng(37.765802, -122.407755),
new google.maps.LatLng(37.765791, -122.408219),
new google.maps.LatLng(37.765763, -122.408759),
new google.maps.LatLng(37.765726, -122.409348),
new google.maps.LatLng(37.765716, -122.409882),
new google.maps.LatLng(37.765708, -122.410202),
new google.maps.LatLng(37.765705, -122.410253),
new google.maps.LatLng(37.765707, -122.410369),
new google.maps.LatLng(37.765692, -122.41072),
new google.maps.LatLng(37.765699, -122.411215),
new google.maps.LatLng(37.765687, -122.411789),
new google.maps.LatLng(37.765666, -122.412373),
new google.maps.LatLng(37.765598, -122.412883),
new google.maps.LatLng(37.765543, -122.413039),
new google.maps.LatLng(37.765532, -122.413125),
new google.maps.LatLng(37.7655, -122.413553),
new google.maps.LatLng(37.765448, -122.414053),
new google.maps.LatLng(37.765388, -122.414645),
new google.maps.LatLng(37.765323, -122.41525),
new google.maps.LatLng(37.765303, -122.415847),
new google.maps.LatLng(37.765251, -122.416439),
new google.maps.LatLng(37.765204, -122.41702),
new google.maps.LatLng(37.765172, -122.417556),
new google.maps.LatLng(37.765164, -122.418075),
new google.maps.LatLng(37.765153, -122.418618),
new google.maps.LatLng(37.765136, -122.419112),
new google.maps.LatLng(37.765129, -122.419378),
new google.maps.LatLng(37.765119, -122.419481),
new google.maps.LatLng(37.7651, -122.419852),
new google.maps.LatLng(37.765083, -122.420349),
new google.maps.LatLng(37.765045, -122.42093),
new google.maps.LatLng(37.764992, -122.421481),
new google.maps.LatLng(37.76498, -122.421695),
new google.maps.LatLng(37.764993, -122.421843),
new google.maps.LatLng(37.764986, -122.422255),
new google.maps.LatLng(37.764975, -122.422823),
new google.maps.LatLng(37.764939, -122.423411),
new google.maps.LatLng(37.764902, -122.424014),
new google.maps.LatLng(37.764853, -122.424576),
new google.maps.LatLng(37.764826, -122.424922),
new google.maps.LatLng(37.764796, -122.425375),
new google.maps.LatLng(37.764782, -122.425869),
new google.maps.LatLng(37.764768, -122.426089),
new google.maps.LatLng(37.764766, -122.426117),
new google.maps.LatLng(37.764723, -122.426276),
new google.maps.LatLng(37.764681, -122.426649),
new google.maps.LatLng(37.782012, -122.4042),
new google.maps.LatLng(37.781574, -122.404911),
new google.maps.LatLng(37.781055, -122.405597),
new google.maps.LatLng(37.780479, -122.406341),
new google.maps.LatLng(37.779996, -122.406939),
new google.maps.LatLng(37.779459, -122.407613),
new google.maps.LatLng(37.778953, -122.408228),
new google.maps.LatLng(37.778409, -122.408839),
new google.maps.LatLng(37.777842, -122.409501),
new google.maps.LatLng(37.777334, -122.410181),
new google.maps.LatLng(37.776809, -122.410836),
new google.maps.LatLng(37.77624, -122.411514),
new google.maps.LatLng(37.775725, -122.412145),
new google.maps.LatLng(37.77519, -122.412805),
new google.maps.LatLng(37.774672, -122.413464),
new google.maps.LatLng(37.774084, -122.414186),
new google.maps.LatLng(37.773533, -122.413636),
new google.maps.LatLng(37.773021, -122.413009),
new google.maps.LatLng(37.772501, -122.412371),
new google.maps.LatLng(37.771964, -122.411681),
new google.maps.LatLng(37.771479, -122.411078),
new google.maps.LatLng(37.770992, -122.410477),
new google.maps.LatLng(37.770467, -122.409801),
new google.maps.LatLng(37.77009, -122.408904),
new google.maps.LatLng(37.769657, -122.408103),
new google.maps.LatLng(37.769132, -122.407276),
new google.maps.LatLng(37.768564, -122.406469),
new google.maps.LatLng(37.76798, -122.405745),
new google.maps.LatLng(37.76738, -122.405299),
new google.maps.LatLng(37.766604, -122.405297),
new google.maps.LatLng(37.765838, -122.4052),
new google.maps.LatLng(37.765139, -122.405139),
new google.maps.LatLng(37.764457, -122.405094),
new google.maps.LatLng(37.763716, -122.405142),
new google.maps.LatLng(37.762932, -122.405398),
new google.maps.LatLng(37.762126, -122.405813),
new google.maps.LatLng(37.761344, -122.406215),
new google.maps.LatLng(37.760556, -122.406495),
new google.maps.LatLng(37.759732, -122.406484),
new google.maps.LatLng(37.75891, -122.406228),
new google.maps.LatLng(37.758182, -122.405695),
new google.maps.LatLng(37.757676, -122.405118),
new google.maps.LatLng(37.757039, -122.404346),
new google.maps.LatLng(37.756335, -122.403719),
new google.maps.LatLng(37.755503, -122.403406),
new google.maps.LatLng(37.754665, -122.403242),
new google.maps.LatLng(37.753837, -122.403172),
new google.maps.LatLng(37.752986, -122.403112),
new google.maps.LatLng(37.751266, -122.403355),
];
}
JavaScript
// This example requires the Visualization library. Include the libraries=visualization
// parameter when you first load the API. For example:
// <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=visualization">
let map, heatmap;
function initMap() {
map = new google.maps.Map(document.getElementById("map"), {
zoom: 13,
center: { lat: 37.775, lng: -122.434 },
mapTypeId: "satellite",
});
heatmap = new google.maps.visualization.HeatmapLayer({
data: getPoints(),
map: map,
});
}
function toggleHeatmap() {
heatmap.setMap(heatmap.getMap() ? null : map);
}
function changeGradient() {
const gradient = [
"rgba(0, 255, 255, 0)",
"rgba(0, 255, 255, 1)",
"rgba(0, 191, 255, 1)",
"rgba(0, 127, 255, 1)",
"rgba(0, 63, 255, 1)",
"rgba(0, 0, 255, 1)",
"rgba(0, 0, 223, 1)",
"rgba(0, 0, 191, 1)",
"rgba(0, 0, 159, 1)",
"rgba(0, 0, 127, 1)",
"rgba(63, 0, 91, 1)",
"rgba(127, 0, 63, 1)",
"rgba(191, 0, 31, 1)",
"rgba(255, 0, 0, 1)",
];
heatmap.set("gradient", heatmap.get("gradient") ? null : gradient);
}
function changeRadius() {
heatmap.set("radius", heatmap.get("radius") ? null : 20);
}
function changeOpacity() {
heatmap.set("opacity", heatmap.get("opacity") ? null : 0.2);
}
// Heatmap data: 500 Points
function getPoints() {
return [
new google.maps.LatLng(37.782551, -122.445368),
new google.maps.LatLng(37.782745, -122.444586),
new google.maps.LatLng(37.782842, -122.443688),
new google.maps.LatLng(37.782919, -122.442815),
new google.maps.LatLng(37.782992, -122.442112),
new google.maps.LatLng(37.7831, -122.441461),
new google.maps.LatLng(37.783206, -122.440829),
new google.maps.LatLng(37.783273, -122.440324),
new google.maps.LatLng(37.783316, -122.440023),
new google.maps.LatLng(37.783357, -122.439794),
new google.maps.LatLng(37.783371, -122.439687),
new google.maps.LatLng(37.783368, -122.439666),
new google.maps.LatLng(37.783383, -122.439594),
new google.maps.LatLng(37.783508, -122.439525),
new google.maps.LatLng(37.783842, -122.439591),
new google.maps.LatLng(37.784147, -122.439668),
new google.maps.LatLng(37.784206, -122.439686),
new google.maps.LatLng(37.784386, -122.43979),
new google.maps.LatLng(37.784701, -122.439902),
new google.maps.LatLng(37.784965, -122.439938),
new google.maps.LatLng(37.78501, -122.439947),
new google.maps.LatLng(37.78536, -122.439952),
new google.maps.LatLng(37.785715, -122.44003),
new google.maps.LatLng(37.786117, -122.440119),
new google.maps.LatLng(37.786564, -122.440209),
new google.maps.LatLng(37.786905, -122.44027),
new google.maps.LatLng(37.786956, -122.440279),
new google.maps.LatLng(37.800224, -122.43352),
new google.maps.LatLng(37.800155, -122.434101),
new google.maps.LatLng(37.80016, -122.43443),
new google.maps.LatLng(37.800378, -122.434527),
new google.maps.LatLng(37.800738, -122.434598),
new google.maps.LatLng(37.800938, -122.43465),
new google.maps.LatLng(37.801024, -122.434889),
new google.maps.LatLng(37.800955, -122.435392),
new google.maps.LatLng(37.800886, -122.435959),
new google.maps.LatLng(37.800811, -122.436275),
new google.maps.LatLng(37.800788, -122.436299),
new google.maps.LatLng(37.800719, -122.436302),
new google.maps.LatLng(37.800702, -122.436298),
new google.maps.LatLng(37.800661, -122.436273),
new google.maps.LatLng(37.800395, -122.436172),
new google.maps.LatLng(37.800228, -122.436116),
new google.maps.LatLng(37.800169, -122.43613),
new google.maps.LatLng(37.800066, -122.436167),
new google.maps.LatLng(37.784345, -122.422922),
new google.maps.LatLng(37.784389, -122.422926),
new google.maps.LatLng(37.784437, -122.422924),
new google.maps.LatLng(37.784746, -122.422818),
new google.maps.LatLng(37.785436, -122.422959),
new google.maps.LatLng(37.78612, -122.423112),
new google.maps.LatLng(37.786433, -122.423029),
new google.maps.LatLng(37.786631, -122.421213),
new google.maps.LatLng(37.78666, -122.421033),
new google.maps.LatLng(37.786801, -122.420141),
new google.maps.LatLng(37.786823, -122.420034),
new google.maps.LatLng(37.786831, -122.419916),
new google.maps.LatLng(37.787034, -122.418208),
new google.maps.LatLng(37.787056, -122.418034),
new google.maps.LatLng(37.787169, -122.417145),
new google.maps.LatLng(37.787217, -122.416715),
new google.maps.LatLng(37.786144, -122.416403),
new google.maps.LatLng(37.785292, -122.416257),
new google.maps.LatLng(37.780666, -122.390374),
new google.maps.LatLng(37.780501, -122.391281),
new google.maps.LatLng(37.780148, -122.392052),
new google.maps.LatLng(37.780173, -122.391148),
new google.maps.LatLng(37.780693, -122.390592),
new google.maps.LatLng(37.781261, -122.391142),
new google.maps.LatLng(37.781808, -122.39173),
new google.maps.LatLng(37.78234, -122.392341),
new google.maps.LatLng(37.782812, -122.393022),
new google.maps.LatLng(37.7833, -122.393672),
new google.maps.LatLng(37.783809, -122.394275),
new google.maps.LatLng(37.784246, -122.394979),
new google.maps.LatLng(37.784791, -122.395958),
new google.maps.LatLng(37.785675, -122.396746),
new google.maps.LatLng(37.786262, -122.39578),
new google.maps.LatLng(37.786776, -122.395093),
new google.maps.LatLng(37.787282, -122.394426),
new google.maps.LatLng(37.787783, -122.393767),
new google.maps.LatLng(37.788343, -122.393184),
new google.maps.LatLng(37.788895, -122.392506),
new google.maps.LatLng(37.789371, -122.391701),
new google.maps.LatLng(37.789722, -122.390952),
new google.maps.LatLng(37.790315, -122.390305),
new google.maps.LatLng(37.790738, -122.389616),
new google.maps.LatLng(37.779448, -122.438702),
new google.maps.LatLng(37.779023, -122.438585),
new google.maps.LatLng(37.778542, -122.438492),
new google.maps.LatLng(37.7781, -122.438411),
new google.maps.LatLng(37.777986, -122.438376),
new google.maps.LatLng(37.77768, -122.438313),
new google.maps.LatLng(37.777316, -122.438273),
new google.maps.LatLng(37.777135, -122.438254),
new google.maps.LatLng(37.776987, -122.438303),
new google.maps.LatLng(37.776946, -122.438404),
new google.maps.LatLng(37.776944, -122.438467),
new google.maps.LatLng(37.776892, -122.438459),
new google.maps.LatLng(37.776842, -122.438442),
new google.maps.LatLng(37.776822, -122.438391),
new google.maps.LatLng(37.776814, -122.438412),
new google.maps.LatLng(37.776787, -122.438628),
new google.maps.LatLng(37.776729, -122.43865),
new google.maps.LatLng(37.776759, -122.438677),
new google.maps.LatLng(37.776772, -122.438498),
new google.maps.LatLng(37.776787, -122.438389),
new google.maps.LatLng(37.776848, -122.438283),
new google.maps.LatLng(37.77687, -122.438239),
new google.maps.LatLng(37.777015, -122.438198),
new google.maps.LatLng(37.777333, -122.438256),
new google.maps.LatLng(37.777595, -122.438308),
new google.maps.LatLng(37.777797, -122.438344),
new google.maps.LatLng(37.77816, -122.438442),
new google.maps.LatLng(37.778414, -122.438508),
new google.maps.LatLng(37.778445, -122.438516),
new google.maps.LatLng(37.778503, -122.438529),
new google.maps.LatLng(37.778607, -122.438549),
new google.maps.LatLng(37.77867, -122.438644),
new google.maps.LatLng(37.778847, -122.438706),
new google.maps.LatLng(37.77924, -122.438744),
new google.maps.LatLng(37.779738, -122.438822),
new google.maps.LatLng(37.780201, -122.438882),
new google.maps.LatLng(37.7804, -122.438905),
new google.maps.LatLng(37.780501, -122.438921),
new google.maps.LatLng(37.780892, -122.438986),
new google.maps.LatLng(37.781446, -122.439087),
new google.maps.LatLng(37.781985, -122.439199),
new google.maps.LatLng(37.782239, -122.439249),
new google.maps.LatLng(37.782286, -122.439266),
new google.maps.LatLng(37.797847, -122.429388),
new google.maps.LatLng(37.797874, -122.42918),
new google.maps.LatLng(37.797885, -122.429069),
new google.maps.LatLng(37.797887, -122.42905),
new google.maps.LatLng(37.797933, -122.428954),
new google.maps.LatLng(37.798242, -122.42899),
new google.maps.LatLng(37.798617, -122.429075),
new google.maps.LatLng(37.798719, -122.429092),
new google.maps.LatLng(37.798944, -122.429145),
new google.maps.LatLng(37.79932, -122.429251),
new google.maps.LatLng(37.79959, -122.429309),
new google.maps.LatLng(37.799677, -122.429324),
new google.maps.LatLng(37.799966, -122.42936),
new google.maps.LatLng(37.800288, -122.42943),
new google.maps.LatLng(37.800443, -122.429461),
new google.maps.LatLng(37.800465, -122.429474),
new google.maps.LatLng(37.800644, -122.42954),
new google.maps.LatLng(37.800948, -122.42962),
new google.maps.LatLng(37.801242, -122.429685),
new google.maps.LatLng(37.801375, -122.429702),
new google.maps.LatLng(37.8014, -122.429703),
new google.maps.LatLng(37.801453, -122.429707),
new google.maps.LatLng(37.801473, -122.429709),
new google.maps.LatLng(37.801532, -122.429707),
new google.maps.LatLng(37.801852, -122.429729),
new google.maps.LatLng(37.802173, -122.429789),
new google.maps.LatLng(37.802459, -122.429847),
new google.maps.LatLng(37.802554, -122.429825),
new google.maps.LatLng(37.802647, -122.429549),
new google.maps.LatLng(37.802693, -122.429179),
new google.maps.LatLng(37.802729, -122.428751),
new google.maps.LatLng(37.766104, -122.409291),
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new google.maps.LatLng(37.765693, -122.410389),
new google.maps.LatLng(37.765615, -122.411201),
new google.maps.LatLng(37.765533, -122.412121),
new google.maps.LatLng(37.765467, -122.412939),
new google.maps.LatLng(37.765444, -122.414821),
new google.maps.LatLng(37.765444, -122.414964),
new google.maps.LatLng(37.765318, -122.415424),
new google.maps.LatLng(37.763961, -122.415296),
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new google.maps.LatLng(37.762967, -122.415183),
new google.maps.LatLng(37.762278, -122.415127),
new google.maps.LatLng(37.761675, -122.415055),
new google.maps.LatLng(37.760932, -122.414988),
new google.maps.LatLng(37.759337, -122.414862),
new google.maps.LatLng(37.773187, -122.421922),
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new google.maps.LatLng(37.773007, -122.422165),
new google.maps.LatLng(37.772979, -122.422219),
new google.maps.LatLng(37.772865, -122.422394),
new google.maps.LatLng(37.772779, -122.422503),
new google.maps.LatLng(37.772676, -122.422701),
new google.maps.LatLng(37.772606, -122.422806),
new google.maps.LatLng(37.772566, -122.42284),
new google.maps.LatLng(37.772508, -122.422852),
new google.maps.LatLng(37.772387, -122.423011),
new google.maps.LatLng(37.772099, -122.423328),
new google.maps.LatLng(37.771704, -122.423783),
new google.maps.LatLng(37.771481, -122.424081),
new google.maps.LatLng(37.7714, -122.424179),
new google.maps.LatLng(37.771352, -122.42422),
new google.maps.LatLng(37.771248, -122.424327),
new google.maps.LatLng(37.770904, -122.424781),
new google.maps.LatLng(37.77052, -122.425283),
new google.maps.LatLng(37.770337, -122.425553),
new google.maps.LatLng(37.770128, -122.425832),
new google.maps.LatLng(37.769756, -122.426331),
new google.maps.LatLng(37.7693, -122.426902),
new google.maps.LatLng(37.769132, -122.427065),
new google.maps.LatLng(37.769092, -122.427103),
new google.maps.LatLng(37.768979, -122.427172),
new google.maps.LatLng(37.768595, -122.427634),
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new google.maps.LatLng(37.768244, -122.428138),
new google.maps.LatLng(37.767942, -122.428581),
new google.maps.LatLng(37.767482, -122.429094),
new google.maps.LatLng(37.767031, -122.429606),
new google.maps.LatLng(37.766732, -122.429986),
new google.maps.LatLng(37.76668, -122.430058),
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new google.maps.LatLng(37.76658, -122.430211),
new google.maps.LatLng(37.766367, -122.430594),
new google.maps.LatLng(37.76591, -122.431137),
new google.maps.LatLng(37.765353, -122.431806),
new google.maps.LatLng(37.764962, -122.432298),
new google.maps.LatLng(37.764868, -122.432486),
new google.maps.LatLng(37.764518, -122.432913),
new google.maps.LatLng(37.763435, -122.434173),
new google.maps.LatLng(37.762847, -122.434953),
new google.maps.LatLng(37.762291, -122.435935),
new google.maps.LatLng(37.762224, -122.436074),
new google.maps.LatLng(37.761957, -122.436892),
new google.maps.LatLng(37.761652, -122.438886),
new google.maps.LatLng(37.761284, -122.439955),
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new google.maps.LatLng(37.76104, -122.441411),
new google.maps.LatLng(37.761048, -122.442324),
new google.maps.LatLng(37.760851, -122.443118),
new google.maps.LatLng(37.759977, -122.444591),
new google.maps.LatLng(37.759913, -122.444698),
new google.maps.LatLng(37.759623, -122.445065),
new google.maps.LatLng(37.758902, -122.445158),
new google.maps.LatLng(37.758428, -122.44457),
new google.maps.LatLng(37.757687, -122.44334),
new google.maps.LatLng(37.757583, -122.44324),
new google.maps.LatLng(37.757019, -122.442787),
new google.maps.LatLng(37.756603, -122.442322),
new google.maps.LatLng(37.75638, -122.441602),
new google.maps.LatLng(37.75579, -122.441382),
new google.maps.LatLng(37.754493, -122.442133),
new google.maps.LatLng(37.754361, -122.442206),
new google.maps.LatLng(37.753719, -122.44265),
new google.maps.LatLng(37.753096, -122.442915),
new google.maps.LatLng(37.751617, -122.443211),
new google.maps.LatLng(37.751496, -122.443246),
new google.maps.LatLng(37.750733, -122.443428),
new google.maps.LatLng(37.750126, -122.443536),
new google.maps.LatLng(37.750103, -122.443784),
new google.maps.LatLng(37.75039, -122.44401),
new google.maps.LatLng(37.750448, -122.444013),
new google.maps.LatLng(37.750536, -122.44404),
new google.maps.LatLng(37.750493, -122.444141),
new google.maps.LatLng(37.790859, -122.402808),
new google.maps.LatLng(37.790864, -122.402768),
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new google.maps.LatLng(37.791148, -122.402172),
new google.maps.LatLng(37.791385, -122.401312),
new google.maps.LatLng(37.791405, -122.400776),
new google.maps.LatLng(37.791288, -122.400528),
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new google.maps.LatLng(37.791027, -122.400395),
new google.maps.LatLng(37.791094, -122.400311),
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new google.maps.LatLng(37.79106, -122.399334),
new google.maps.LatLng(37.790538, -122.398718),
new google.maps.LatLng(37.790095, -122.398086),
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new google.maps.LatLng(37.789254, -122.396844),
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new google.maps.LatLng(37.786378, -122.395707),
new google.maps.LatLng(37.786044, -122.395362),
new google.maps.LatLng(37.785598, -122.394715),
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new google.maps.LatLng(37.786092, -122.39383),
new google.maps.LatLng(37.785998, -122.393899),
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new google.maps.LatLng(37.785022, -122.394441),
new google.maps.LatLng(37.784823, -122.394635),
new google.maps.LatLng(37.784719, -122.394629),
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new google.maps.LatLng(37.78577, -122.393291),
new google.maps.LatLng(37.785839, -122.393159),
new google.maps.LatLng(37.782651, -122.400628),
new google.maps.LatLng(37.782616, -122.400599),
new google.maps.LatLng(37.782702, -122.40047),
new google.maps.LatLng(37.782915, -122.400192),
new google.maps.LatLng(37.783137, -122.399887),
new google.maps.LatLng(37.783414, -122.399519),
new google.maps.LatLng(37.783629, -122.399237),
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new google.maps.LatLng(37.784271, -122.399538),
new google.maps.LatLng(37.784577, -122.399948),
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new google.maps.LatLng(37.784999, -122.400477),
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new google.maps.LatLng(37.785192, -122.400749),
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new google.maps.LatLng(37.803986, -122.426035),
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new google.maps.LatLng(37.801069, -122.422785),
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new google.maps.LatLng(37.775806, -122.410997),
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new google.maps.LatLng(37.775164, -122.409573),
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new google.maps.LatLng(37.776519, -122.407928),
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new google.maps.LatLng(37.778066, -122.406017),
new google.maps.LatLng(37.778468, -122.405499),
new google.maps.LatLng(37.778866, -122.404995),
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new google.maps.LatLng(37.779695, -122.40395),
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new google.maps.LatLng(37.781399, -122.401823),
new google.maps.LatLng(37.781727, -122.401407),
new google.maps.LatLng(37.781853, -122.401247),
new google.maps.LatLng(37.781894, -122.401195),
new google.maps.LatLng(37.782076, -122.400977),
new google.maps.LatLng(37.782338, -122.400603),
new google.maps.LatLng(37.782666, -122.400133),
new google.maps.LatLng(37.783048, -122.399634),
new google.maps.LatLng(37.78345, -122.399198),
new google.maps.LatLng(37.783791, -122.398998),
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new google.maps.LatLng(37.784586, -122.399524),
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new google.maps.LatLng(37.785282, -122.400539),
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new google.maps.LatLng(37.765769, -122.407201),
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new google.maps.LatLng(37.765726, -122.409348),
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new google.maps.LatLng(37.765705, -122.410253),
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new google.maps.LatLng(37.765699, -122.411215),
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new google.maps.LatLng(37.765045, -122.42093),
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new google.maps.LatLng(37.764975, -122.422823),
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new google.maps.LatLng(37.764853, -122.424576),
new google.maps.LatLng(37.764826, -122.424922),
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new google.maps.LatLng(37.764782, -122.425869),
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new google.maps.LatLng(37.778953, -122.408228),
new google.maps.LatLng(37.778409, -122.408839),
new google.maps.LatLng(37.777842, -122.409501),
new google.maps.LatLng(37.777334, -122.410181),
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new google.maps.LatLng(37.77624, -122.411514),
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new google.maps.LatLng(37.771479, -122.411078),
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new google.maps.LatLng(37.770467, -122.409801),
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new google.maps.LatLng(37.76738, -122.405299),
new google.maps.LatLng(37.766604, -122.405297),
new google.maps.LatLng(37.765838, -122.4052),
new google.maps.LatLng(37.765139, -122.405139),
new google.maps.LatLng(37.764457, -122.405094),
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new google.maps.LatLng(37.762932, -122.405398),
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new google.maps.LatLng(37.760556, -122.406495),
new google.maps.LatLng(37.759732, -122.406484),
new google.maps.LatLng(37.75891, -122.406228),
new google.maps.LatLng(37.758182, -122.405695),
new google.maps.LatLng(37.757676, -122.405118),
new google.maps.LatLng(37.757039, -122.404346),
new google.maps.LatLng(37.756335, -122.403719),
new google.maps.LatLng(37.755503, -122.403406),
new google.maps.LatLng(37.754665, -122.403242),
new google.maps.LatLng(37.753837, -122.403172),
new google.maps.LatLng(37.752986, -122.403112),
new google.maps.LatLng(37.751266, -122.403355),
];
}
CSS
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html,
body {
height: 100%;
margin: 0;
padding: 0;
}
#floating-panel {
position: absolute;
top: 10px;
left: 25%;
z-index: 5;
background-color: #fff;
padding: 5px;
border: 1px solid #999;
text-align: center;
font-family: "Roboto", "sans-serif";
line-height: 30px;
padding-left: 10px;
}
#floating-panel {
background-color: #fff;
border: 1px solid #999;
left: 25%;
padding: 5px;
position: absolute;
top: 10px;
z-index: 5;
}
HTML
<!DOCTYPE html>
<html>
<head>
<title>Heatmaps</title>
<script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
<script
src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap&libraries=visualization&v=weekly"
defer
></script>
<link rel="stylesheet" type="text/css" href="./style.css" />
<script src="./index.js"></script>
</head>
<body>
<div id="floating-panel">
<button onclick="toggleHeatmap()">Toggle Heatmap</button>
<button onclick="changeGradient()">Change gradient</button>
<button onclick="changeRadius()">Change radius</button>
<button onclick="changeOpacity()">Change opacity</button>
</div>
<div id="map"></div>
</body>
</html>
All
<!DOCTYPE html>
<html>
<head>
<title>Heatmaps</title>
<script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
<script
src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap&libraries=visualization&v=weekly"
defer
></script>
<style type="text/css">
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html,
body {
height: 100%;
margin: 0;
padding: 0;
}
#floating-panel {
position: absolute;
top: 10px;
left: 25%;
z-index: 5;
background-color: #fff;
padding: 5px;
border: 1px solid #999;
text-align: center;
font-family: "Roboto", "sans-serif";
line-height: 30px;
padding-left: 10px;
}
#floating-panel {
background-color: #fff;
border: 1px solid #999;
left: 25%;
padding: 5px;
position: absolute;
top: 10px;
z-index: 5;
}
</style>
<script>
// This example requires the Visualization library. Include the libraries=visualization
// parameter when you first load the API. For example:
// <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=visualization">
let map, heatmap;
function initMap() {
map = new google.maps.Map(document.getElementById("map"), {
zoom: 13,
center: { lat: 37.775, lng: -122.434 },
mapTypeId: "satellite",
});
heatmap = new google.maps.visualization.HeatmapLayer({
data: getPoints(),
map: map,
});
}
function toggleHeatmap() {
heatmap.setMap(heatmap.getMap() ? null : map);
}
function changeGradient() {
const gradient = [
"rgba(0, 255, 255, 0)",
"rgba(0, 255, 255, 1)",
"rgba(0, 191, 255, 1)",
"rgba(0, 127, 255, 1)",
"rgba(0, 63, 255, 1)",
"rgba(0, 0, 255, 1)",
"rgba(0, 0, 223, 1)",
"rgba(0, 0, 191, 1)",
"rgba(0, 0, 159, 1)",
"rgba(0, 0, 127, 1)",
"rgba(63, 0, 91, 1)",
"rgba(127, 0, 63, 1)",
"rgba(191, 0, 31, 1)",
"rgba(255, 0, 0, 1)",
];
heatmap.set("gradient", heatmap.get("gradient") ? null : gradient);
}
function changeRadius() {
heatmap.set("radius", heatmap.get("radius") ? null : 20);
}
function changeOpacity() {
heatmap.set("opacity", heatmap.get("opacity") ? null : 0.2);
}
// Heatmap data: 500 Points
function getPoints() {
return [
new google.maps.LatLng(37.782551, -122.445368),
new google.maps.LatLng(37.782745, -122.444586),
new google.maps.LatLng(37.782842, -122.443688),
new google.maps.LatLng(37.782919, -122.442815),
new google.maps.LatLng(37.782992, -122.442112),
new google.maps.LatLng(37.7831, -122.441461),
new google.maps.LatLng(37.783206, -122.440829),
new google.maps.LatLng(37.783273, -122.440324),
new google.maps.LatLng(37.783316, -122.440023),
new google.maps.LatLng(37.783357, -122.439794),
new google.maps.LatLng(37.783371, -122.439687),
new google.maps.LatLng(37.783368, -122.439666),
new google.maps.LatLng(37.783383, -122.439594),
new google.maps.LatLng(37.783508, -122.439525),
new google.maps.LatLng(37.783842, -122.439591),
new google.maps.LatLng(37.784147, -122.439668),
new google.maps.LatLng(37.784206, -122.439686),
new google.maps.LatLng(37.784386, -122.43979),
new google.maps.LatLng(37.784701, -122.439902),
new google.maps.LatLng(37.784965, -122.439938),
new google.maps.LatLng(37.78501, -122.439947),
new google.maps.LatLng(37.78536, -122.439952),
new google.maps.LatLng(37.785715, -122.44003),
new google.maps.LatLng(37.786117, -122.440119),
new google.maps.LatLng(37.786564, -122.440209),
new google.maps.LatLng(37.786905, -122.44027),
new google.maps.LatLng(37.786956, -122.440279),
new google.maps.LatLng(37.800224, -122.43352),
new google.maps.LatLng(37.800155, -122.434101),
new google.maps.LatLng(37.80016, -122.43443),
new google.maps.LatLng(37.800378, -122.434527),
new google.maps.LatLng(37.800738, -122.434598),
new google.maps.LatLng(37.800938, -122.43465),
new google.maps.LatLng(37.801024, -122.434889),
new google.maps.LatLng(37.800955, -122.435392),
new google.maps.LatLng(37.800886, -122.435959),
new google.maps.LatLng(37.800811, -122.436275),
new google.maps.LatLng(37.800788, -122.436299),
new google.maps.LatLng(37.800719, -122.436302),
new google.maps.LatLng(37.800702, -122.436298),
new google.maps.LatLng(37.800661, -122.436273),
new google.maps.LatLng(37.800395, -122.436172),
new google.maps.LatLng(37.800228, -122.436116),
new google.maps.LatLng(37.800169, -122.43613),
new google.maps.LatLng(37.800066, -122.436167),
new google.maps.LatLng(37.784345, -122.422922),
new google.maps.LatLng(37.784389, -122.422926),
new google.maps.LatLng(37.784437, -122.422924),
new google.maps.LatLng(37.784746, -122.422818),
new google.maps.LatLng(37.785436, -122.422959),
new google.maps.LatLng(37.78612, -122.423112),
new google.maps.LatLng(37.786433, -122.423029),
new google.maps.LatLng(37.786631, -122.421213),
new google.maps.LatLng(37.78666, -122.421033),
new google.maps.LatLng(37.786801, -122.420141),
new google.maps.LatLng(37.786823, -122.420034),
new google.maps.LatLng(37.786831, -122.419916),
new google.maps.LatLng(37.787034, -122.418208),
new google.maps.LatLng(37.787056, -122.418034),
new google.maps.LatLng(37.787169, -122.417145),
new google.maps.LatLng(37.787217, -122.416715),
new google.maps.LatLng(37.786144, -122.416403),
new google.maps.LatLng(37.785292, -122.416257),
new google.maps.LatLng(37.780666, -122.390374),
new google.maps.LatLng(37.780501, -122.391281),
new google.maps.LatLng(37.780148, -122.392052),
new google.maps.LatLng(37.780173, -122.391148),
new google.maps.LatLng(37.780693, -122.390592),
new google.maps.LatLng(37.781261, -122.391142),
new google.maps.LatLng(37.781808, -122.39173),
new google.maps.LatLng(37.78234, -122.392341),
new google.maps.LatLng(37.782812, -122.393022),
new google.maps.LatLng(37.7833, -122.393672),
new google.maps.LatLng(37.783809, -122.394275),
new google.maps.LatLng(37.784246, -122.394979),
new google.maps.LatLng(37.784791, -122.395958),
new google.maps.LatLng(37.785675, -122.396746),
new google.maps.LatLng(37.786262, -122.39578),
new google.maps.LatLng(37.786776, -122.395093),
new google.maps.LatLng(37.787282, -122.394426),
new google.maps.LatLng(37.787783, -122.393767),
new google.maps.LatLng(37.788343, -122.393184),
new google.maps.LatLng(37.788895, -122.392506),
new google.maps.LatLng(37.789371, -122.391701),
new google.maps.LatLng(37.789722, -122.390952),
new google.maps.LatLng(37.790315, -122.390305),
new google.maps.LatLng(37.790738, -122.389616),
new google.maps.LatLng(37.779448, -122.438702),
new google.maps.LatLng(37.779023, -122.438585),
new google.maps.LatLng(37.778542, -122.438492),
new google.maps.LatLng(37.7781, -122.438411),
new google.maps.LatLng(37.777986, -122.438376),
new google.maps.LatLng(37.77768, -122.438313),
new google.maps.LatLng(37.777316, -122.438273),
new google.maps.LatLng(37.777135, -122.438254),
new google.maps.LatLng(37.776987, -122.438303),
new google.maps.LatLng(37.776946, -122.438404),
new google.maps.LatLng(37.776944, -122.438467),
new google.maps.LatLng(37.776892, -122.438459),
new google.maps.LatLng(37.776842, -122.438442),
new google.maps.LatLng(37.776822, -122.438391),
new google.maps.LatLng(37.776814, -122.438412),
new google.maps.LatLng(37.776787, -122.438628),
new google.maps.LatLng(37.776729, -122.43865),
new google.maps.LatLng(37.776759, -122.438677),
new google.maps.LatLng(37.776772, -122.438498),
new google.maps.LatLng(37.776787, -122.438389),
new google.maps.LatLng(37.776848, -122.438283),
new google.maps.LatLng(37.77687, -122.438239),
new google.maps.LatLng(37.777015, -122.438198),
new google.maps.LatLng(37.777333, -122.438256),
new google.maps.LatLng(37.777595, -122.438308),
new google.maps.LatLng(37.777797, -122.438344),
new google.maps.LatLng(37.77816, -122.438442),
new google.maps.LatLng(37.778414, -122.438508),
new google.maps.LatLng(37.778445, -122.438516),
new google.maps.LatLng(37.778503, -122.438529),
new google.maps.LatLng(37.778607, -122.438549),
new google.maps.LatLng(37.77867, -122.438644),
new google.maps.LatLng(37.778847, -122.438706),
new google.maps.LatLng(37.77924, -122.438744),
new google.maps.LatLng(37.779738, -122.438822),
new google.maps.LatLng(37.780201, -122.438882),
new google.maps.LatLng(37.7804, -122.438905),
new google.maps.LatLng(37.780501, -122.438921),
new google.maps.LatLng(37.780892, -122.438986),
new google.maps.LatLng(37.781446, -122.439087),
new google.maps.LatLng(37.781985, -122.439199),
new google.maps.LatLng(37.782239, -122.439249),
new google.maps.LatLng(37.782286, -122.439266),
new google.maps.LatLng(37.797847, -122.429388),
new google.maps.LatLng(37.797874, -122.42918),
new google.maps.LatLng(37.797885, -122.429069),
new google.maps.LatLng(37.797887, -122.42905),
new google.maps.LatLng(37.797933, -122.428954),
new google.maps.LatLng(37.798242, -122.42899),
new google.maps.LatLng(37.798617, -122.429075),
new google.maps.LatLng(37.798719, -122.429092),
new google.maps.LatLng(37.798944, -122.429145),
new google.maps.LatLng(37.79932, -122.429251),
new google.maps.LatLng(37.79959, -122.429309),
new google.maps.LatLng(37.799677, -122.429324),
new google.maps.LatLng(37.799966, -122.42936),
new google.maps.LatLng(37.800288, -122.42943),
new google.maps.LatLng(37.800443, -122.429461),
new google.maps.LatLng(37.800465, -122.429474),
new google.maps.LatLng(37.800644, -122.42954),
new google.maps.LatLng(37.800948, -122.42962),
new google.maps.LatLng(37.801242, -122.429685),
new google.maps.LatLng(37.801375, -122.429702),
new google.maps.LatLng(37.8014, -122.429703),
new google.maps.LatLng(37.801453, -122.429707),
new google.maps.LatLng(37.801473, -122.429709),
new google.maps.LatLng(37.801532, -122.429707),
new google.maps.LatLng(37.801852, -122.429729),
new google.maps.LatLng(37.802173, -122.429789),
new google.maps.LatLng(37.802459, -122.429847),
new google.maps.LatLng(37.802554, -122.429825),
new google.maps.LatLng(37.802647, -122.429549),
new google.maps.LatLng(37.802693, -122.429179),
new google.maps.LatLng(37.802729, -122.428751),
new google.maps.LatLng(37.766104, -122.409291),
new google.maps.LatLng(37.766103, -122.409268),
new google.maps.LatLng(37.766138, -122.409229),
new google.maps.LatLng(37.766183, -122.409231),
new google.maps.LatLng(37.766153, -122.409276),
new google.maps.LatLng(37.766005, -122.409365),
new google.maps.LatLng(37.765897, -122.40957),
new google.maps.LatLng(37.765767, -122.409739),
new google.maps.LatLng(37.765693, -122.410389),
new google.maps.LatLng(37.765615, -122.411201),
new google.maps.LatLng(37.765533, -122.412121),
new google.maps.LatLng(37.765467, -122.412939),
new google.maps.LatLng(37.765444, -122.414821),
new google.maps.LatLng(37.765444, -122.414964),
new google.maps.LatLng(37.765318, -122.415424),
new google.maps.LatLng(37.763961, -122.415296),
new google.maps.LatLng(37.763115, -122.415196),
new google.maps.LatLng(37.762967, -122.415183),
new google.maps.LatLng(37.762278, -122.415127),
new google.maps.LatLng(37.761675, -122.415055),
new google.maps.LatLng(37.760932, -122.414988),
new google.maps.LatLng(37.759337, -122.414862),
new google.maps.LatLng(37.773187, -122.421922),
new google.maps.LatLng(37.773043, -122.422118),
new google.maps.LatLng(37.773007, -122.422165),
new google.maps.LatLng(37.772979, -122.422219),
new google.maps.LatLng(37.772865, -122.422394),
new google.maps.LatLng(37.772779, -122.422503),
new google.maps.LatLng(37.772676, -122.422701),
new google.maps.LatLng(37.772606, -122.422806),
new google.maps.LatLng(37.772566, -122.42284),
new google.maps.LatLng(37.772508, -122.422852),
new google.maps.LatLng(37.772387, -122.423011),
new google.maps.LatLng(37.772099, -122.423328),
new google.maps.LatLng(37.771704, -122.423783),
new google.maps.LatLng(37.771481, -122.424081),
new google.maps.LatLng(37.7714, -122.424179),
new google.maps.LatLng(37.771352, -122.42422),
new google.maps.LatLng(37.771248, -122.424327),
new google.maps.LatLng(37.770904, -122.424781),
new google.maps.LatLng(37.77052, -122.425283),
new google.maps.LatLng(37.770337, -122.425553),
new google.maps.LatLng(37.770128, -122.425832),
new google.maps.LatLng(37.769756, -122.426331),
new google.maps.LatLng(37.7693, -122.426902),
new google.maps.LatLng(37.769132, -122.427065),
new google.maps.LatLng(37.769092, -122.427103),
new google.maps.LatLng(37.768979, -122.427172),
new google.maps.LatLng(37.768595, -122.427634),
new google.maps.LatLng(37.768372, -122.427913),
new google.maps.LatLng(37.768337, -122.427961),
new google.maps.LatLng(37.768244, -122.428138),
new google.maps.LatLng(37.767942, -122.428581),
new google.maps.LatLng(37.767482, -122.429094),
new google.maps.LatLng(37.767031, -122.429606),
new google.maps.LatLng(37.766732, -122.429986),
new google.maps.LatLng(37.76668, -122.430058),
new google.maps.LatLng(37.766633, -122.430109),
new google.maps.LatLng(37.76658, -122.430211),
new google.maps.LatLng(37.766367, -122.430594),
new google.maps.LatLng(37.76591, -122.431137),
new google.maps.LatLng(37.765353, -122.431806),
new google.maps.LatLng(37.764962, -122.432298),
new google.maps.LatLng(37.764868, -122.432486),
new google.maps.LatLng(37.764518, -122.432913),
new google.maps.LatLng(37.763435, -122.434173),
new google.maps.LatLng(37.762847, -122.434953),
new google.maps.LatLng(37.762291, -122.435935),
new google.maps.LatLng(37.762224, -122.436074),
new google.maps.LatLng(37.761957, -122.436892),
new google.maps.LatLng(37.761652, -122.438886),
new google.maps.LatLng(37.761284, -122.439955),
new google.maps.LatLng(37.76121, -122.440068),
new google.maps.LatLng(37.761064, -122.44072),
new google.maps.LatLng(37.76104, -122.441411),
new google.maps.LatLng(37.761048, -122.442324),
new google.maps.LatLng(37.760851, -122.443118),
new google.maps.LatLng(37.759977, -122.444591),
new google.maps.LatLng(37.759913, -122.444698),
new google.maps.LatLng(37.759623, -122.445065),
new google.maps.LatLng(37.758902, -122.445158),
new google.maps.LatLng(37.758428, -122.44457),
new google.maps.LatLng(37.757687, -122.44334),
new google.maps.LatLng(37.757583, -122.44324),
new google.maps.LatLng(37.757019, -122.442787),
new google.maps.LatLng(37.756603, -122.442322),
new google.maps.LatLng(37.75638, -122.441602),
new google.maps.LatLng(37.75579, -122.441382),
new google.maps.LatLng(37.754493, -122.442133),
new google.maps.LatLng(37.754361, -122.442206),
new google.maps.LatLng(37.753719, -122.44265),
new google.maps.LatLng(37.753096, -122.442915),
new google.maps.LatLng(37.751617, -122.443211),
new google.maps.LatLng(37.751496, -122.443246),
new google.maps.LatLng(37.750733, -122.443428),
new google.maps.LatLng(37.750126, -122.443536),
new google.maps.LatLng(37.750103, -122.443784),
new google.maps.LatLng(37.75039, -122.44401),
new google.maps.LatLng(37.750448, -122.444013),
new google.maps.LatLng(37.750536, -122.44404),
new google.maps.LatLng(37.750493, -122.444141),
new google.maps.LatLng(37.790859, -122.402808),
new google.maps.LatLng(37.790864, -122.402768),
new google.maps.LatLng(37.790995, -122.402539),
new google.maps.LatLng(37.791148, -122.402172),
new google.maps.LatLng(37.791385, -122.401312),
new google.maps.LatLng(37.791405, -122.400776),
new google.maps.LatLng(37.791288, -122.400528),
new google.maps.LatLng(37.791113, -122.400441),
new google.maps.LatLng(37.791027, -122.400395),
new google.maps.LatLng(37.791094, -122.400311),
new google.maps.LatLng(37.791211, -122.400183),
new google.maps.LatLng(37.79106, -122.399334),
new google.maps.LatLng(37.790538, -122.398718),
new google.maps.LatLng(37.790095, -122.398086),
new google.maps.LatLng(37.789644, -122.39736),
new google.maps.LatLng(37.789254, -122.396844),
new google.maps.LatLng(37.788855, -122.396397),
new google.maps.LatLng(37.788483, -122.395963),
new google.maps.LatLng(37.788015, -122.395365),
new google.maps.LatLng(37.787558, -122.394735),
new google.maps.LatLng(37.787472, -122.394323),
new google.maps.LatLng(37.78763, -122.394025),
new google.maps.LatLng(37.787767, -122.393987),
new google.maps.LatLng(37.787486, -122.394452),
new google.maps.LatLng(37.786977, -122.395043),
new google.maps.LatLng(37.786583, -122.395552),
new google.maps.LatLng(37.78654, -122.39561),
new google.maps.LatLng(37.786516, -122.395659),
new google.maps.LatLng(37.786378, -122.395707),
new google.maps.LatLng(37.786044, -122.395362),
new google.maps.LatLng(37.785598, -122.394715),
new google.maps.LatLng(37.785321, -122.394361),
new google.maps.LatLng(37.785207, -122.394236),
new google.maps.LatLng(37.785751, -122.394062),
new google.maps.LatLng(37.785996, -122.393881),
new google.maps.LatLng(37.786092, -122.39383),
new google.maps.LatLng(37.785998, -122.393899),
new google.maps.LatLng(37.785114, -122.394365),
new google.maps.LatLng(37.785022, -122.394441),
new google.maps.LatLng(37.784823, -122.394635),
new google.maps.LatLng(37.784719, -122.394629),
new google.maps.LatLng(37.785069, -122.394176),
new google.maps.LatLng(37.7855, -122.39365),
new google.maps.LatLng(37.78577, -122.393291),
new google.maps.LatLng(37.785839, -122.393159),
new google.maps.LatLng(37.782651, -122.400628),
new google.maps.LatLng(37.782616, -122.400599),
new google.maps.LatLng(37.782702, -122.40047),
new google.maps.LatLng(37.782915, -122.400192),
new google.maps.LatLng(37.783137, -122.399887),
new google.maps.LatLng(37.783414, -122.399519),
new google.maps.LatLng(37.783629, -122.399237),
new google.maps.LatLng(37.783688, -122.399157),
new google.maps.LatLng(37.783716, -122.399106),
new google.maps.LatLng(37.783798, -122.399072),
new google.maps.LatLng(37.783997, -122.399186),
new google.maps.LatLng(37.784271, -122.399538),
new google.maps.LatLng(37.784577, -122.399948),
new google.maps.LatLng(37.784828, -122.40026),
new google.maps.LatLng(37.784999, -122.400477),
new google.maps.LatLng(37.785113, -122.400651),
new google.maps.LatLng(37.785155, -122.400703),
new google.maps.LatLng(37.785192, -122.400749),
new google.maps.LatLng(37.785278, -122.400839),
new google.maps.LatLng(37.785387, -122.400857),
new google.maps.LatLng(37.785478, -122.40089),
new google.maps.LatLng(37.785526, -122.401022),
new google.maps.LatLng(37.785598, -122.401148),
new google.maps.LatLng(37.785631, -122.401202),
new google.maps.LatLng(37.78566, -122.401267),
new google.maps.LatLng(37.803986, -122.426035),
new google.maps.LatLng(37.804102, -122.425089),
new google.maps.LatLng(37.804211, -122.424156),
new google.maps.LatLng(37.803861, -122.423385),
new google.maps.LatLng(37.803151, -122.423214),
new google.maps.LatLng(37.802439, -122.423077),
new google.maps.LatLng(37.80174, -122.422905),
new google.maps.LatLng(37.801069, -122.422785),
new google.maps.LatLng(37.800345, -122.422649),
new google.maps.LatLng(37.799633, -122.422603),
new google.maps.LatLng(37.79975, -122.4217),
new google.maps.LatLng(37.799885, -122.420854),
new google.maps.LatLng(37.799209, -122.420607),
new google.maps.LatLng(37.795656, -122.400395),
new google.maps.LatLng(37.795203, -122.400304),
new google.maps.LatLng(37.778738, -122.415584),
new google.maps.LatLng(37.778812, -122.415189),
new google.maps.LatLng(37.778824, -122.415092),
new google.maps.LatLng(37.778833, -122.414932),
new google.maps.LatLng(37.778834, -122.414898),
new google.maps.LatLng(37.77874, -122.414757),
new google.maps.LatLng(37.778501, -122.414433),
new google.maps.LatLng(37.778182, -122.414026),
new google.maps.LatLng(37.777851, -122.413623),
new google.maps.LatLng(37.777486, -122.413166),
new google.maps.LatLng(37.777109, -122.412674),
new google.maps.LatLng(37.776743, -122.412186),
new google.maps.LatLng(37.77644, -122.4118),
new google.maps.LatLng(37.776295, -122.411614),
new google.maps.LatLng(37.776158, -122.41144),
new google.maps.LatLng(37.775806, -122.410997),
new google.maps.LatLng(37.775422, -122.410484),
new google.maps.LatLng(37.775126, -122.410087),
new google.maps.LatLng(37.775012, -122.409854),
new google.maps.LatLng(37.775164, -122.409573),
new google.maps.LatLng(37.775498, -122.40918),
new google.maps.LatLng(37.775868, -122.40873),
new google.maps.LatLng(37.776256, -122.40824),
new google.maps.LatLng(37.776519, -122.407928),
new google.maps.LatLng(37.776539, -122.407904),
new google.maps.LatLng(37.776595, -122.407854),
new google.maps.LatLng(37.776853, -122.407547),
new google.maps.LatLng(37.777234, -122.407087),
new google.maps.LatLng(37.777644, -122.406558),
new google.maps.LatLng(37.778066, -122.406017),
new google.maps.LatLng(37.778468, -122.405499),
new google.maps.LatLng(37.778866, -122.404995),
new google.maps.LatLng(37.779295, -122.404455),
new google.maps.LatLng(37.779695, -122.40395),
new google.maps.LatLng(37.779982, -122.403584),
new google.maps.LatLng(37.780295, -122.403223),
new google.maps.LatLng(37.780664, -122.402766),
new google.maps.LatLng(37.781043, -122.402288),
new google.maps.LatLng(37.781399, -122.401823),
new google.maps.LatLng(37.781727, -122.401407),
new google.maps.LatLng(37.781853, -122.401247),
new google.maps.LatLng(37.781894, -122.401195),
new google.maps.LatLng(37.782076, -122.400977),
new google.maps.LatLng(37.782338, -122.400603),
new google.maps.LatLng(37.782666, -122.400133),
new google.maps.LatLng(37.783048, -122.399634),
new google.maps.LatLng(37.78345, -122.399198),
new google.maps.LatLng(37.783791, -122.398998),
new google.maps.LatLng(37.784177, -122.398959),
new google.maps.LatLng(37.784388, -122.398971),
new google.maps.LatLng(37.784404, -122.399128),
new google.maps.LatLng(37.784586, -122.399524),
new google.maps.LatLng(37.784835, -122.399927),
new google.maps.LatLng(37.785116, -122.400307),
new google.maps.LatLng(37.785282, -122.400539),
new google.maps.LatLng(37.785346, -122.400692),
new google.maps.LatLng(37.765769, -122.407201),
new google.maps.LatLng(37.76579, -122.407414),
new google.maps.LatLng(37.765802, -122.407755),
new google.maps.LatLng(37.765791, -122.408219),
new google.maps.LatLng(37.765763, -122.408759),
new google.maps.LatLng(37.765726, -122.409348),
new google.maps.LatLng(37.765716, -122.409882),
new google.maps.LatLng(37.765708, -122.410202),
new google.maps.LatLng(37.765705, -122.410253),
new google.maps.LatLng(37.765707, -122.410369),
new google.maps.LatLng(37.765692, -122.41072),
new google.maps.LatLng(37.765699, -122.411215),
new google.maps.LatLng(37.765687, -122.411789),
new google.maps.LatLng(37.765666, -122.412373),
new google.maps.LatLng(37.765598, -122.412883),
new google.maps.LatLng(37.765543, -122.413039),
new google.maps.LatLng(37.765532, -122.413125),
new google.maps.LatLng(37.7655, -122.413553),
new google.maps.LatLng(37.765448, -122.414053),
new google.maps.LatLng(37.765388, -122.414645),
new google.maps.LatLng(37.765323, -122.41525),
new google.maps.LatLng(37.765303, -122.415847),
new google.maps.LatLng(37.765251, -122.416439),
new google.maps.LatLng(37.765204, -122.41702),
new google.maps.LatLng(37.765172, -122.417556),
new google.maps.LatLng(37.765164, -122.418075),
new google.maps.LatLng(37.765153, -122.418618),
new google.maps.LatLng(37.765136, -122.419112),
new google.maps.LatLng(37.765129, -122.419378),
new google.maps.LatLng(37.765119, -122.419481),
new google.maps.LatLng(37.7651, -122.419852),
new google.maps.LatLng(37.765083, -122.420349),
new google.maps.LatLng(37.765045, -122.42093),
new google.maps.LatLng(37.764992, -122.421481),
new google.maps.LatLng(37.76498, -122.421695),
new google.maps.LatLng(37.764993, -122.421843),
new google.maps.LatLng(37.764986, -122.422255),
new google.maps.LatLng(37.764975, -122.422823),
new google.maps.LatLng(37.764939, -122.423411),
new google.maps.LatLng(37.764902, -122.424014),
new google.maps.LatLng(37.764853, -122.424576),
new google.maps.LatLng(37.764826, -122.424922),
new google.maps.LatLng(37.764796, -122.425375),
new google.maps.LatLng(37.764782, -122.425869),
new google.maps.LatLng(37.764768, -122.426089),
new google.maps.LatLng(37.764766, -122.426117),
new google.maps.LatLng(37.764723, -122.426276),
new google.maps.LatLng(37.764681, -122.426649),
new google.maps.LatLng(37.782012, -122.4042),
new google.maps.LatLng(37.781574, -122.404911),
new google.maps.LatLng(37.781055, -122.405597),
new google.maps.LatLng(37.780479, -122.406341),
new google.maps.LatLng(37.779996, -122.406939),
new google.maps.LatLng(37.779459, -122.407613),
new google.maps.LatLng(37.778953, -122.408228),
new google.maps.LatLng(37.778409, -122.408839),
new google.maps.LatLng(37.777842, -122.409501),
new google.maps.LatLng(37.777334, -122.410181),
new google.maps.LatLng(37.776809, -122.410836),
new google.maps.LatLng(37.77624, -122.411514),
new google.maps.LatLng(37.775725, -122.412145),
new google.maps.LatLng(37.77519, -122.412805),
new google.maps.LatLng(37.774672, -122.413464),
new google.maps.LatLng(37.774084, -122.414186),
new google.maps.LatLng(37.773533, -122.413636),
new google.maps.LatLng(37.773021, -122.413009),
new google.maps.LatLng(37.772501, -122.412371),
new google.maps.LatLng(37.771964, -122.411681),
new google.maps.LatLng(37.771479, -122.411078),
new google.maps.LatLng(37.770992, -122.410477),
new google.maps.LatLng(37.770467, -122.409801),
new google.maps.LatLng(37.77009, -122.408904),
new google.maps.LatLng(37.769657, -122.408103),
new google.maps.LatLng(37.769132, -122.407276),
new google.maps.LatLng(37.768564, -122.406469),
new google.maps.LatLng(37.76798, -122.405745),
new google.maps.LatLng(37.76738, -122.405299),
new google.maps.LatLng(37.766604, -122.405297),
new google.maps.LatLng(37.765838, -122.4052),
new google.maps.LatLng(37.765139, -122.405139),
new google.maps.LatLng(37.764457, -122.405094),
new google.maps.LatLng(37.763716, -122.405142),
new google.maps.LatLng(37.762932, -122.405398),
new google.maps.LatLng(37.762126, -122.405813),
new google.maps.LatLng(37.761344, -122.406215),
new google.maps.LatLng(37.760556, -122.406495),
new google.maps.LatLng(37.759732, -122.406484),
new google.maps.LatLng(37.75891, -122.406228),
new google.maps.LatLng(37.758182, -122.405695),
new google.maps.LatLng(37.757676, -122.405118),
new google.maps.LatLng(37.757039, -122.404346),
new google.maps.LatLng(37.756335, -122.403719),
new google.maps.LatLng(37.755503, -122.403406),
new google.maps.LatLng(37.754665, -122.403242),
new google.maps.LatLng(37.753837, -122.403172),
new google.maps.LatLng(37.752986, -122.403112),
new google.maps.LatLng(37.751266, -122.403355),
];
}
</script>
</head>
<body>
<div id="floating-panel">
<button onclick="toggleHeatmap()">Toggle Heatmap</button>
<button onclick="changeGradient()">Change gradient</button>
<button onclick="changeRadius()">Change radius</button>
<button onclick="changeOpacity()">Change opacity</button>
</div>
<div id="map"></div>
</body>
</html>
// This example requires the Visualization library. Include the libraries=visualization
// parameter when you first load the API. For example:
// <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyBIwzALxUPNbatRBj3Xi1Uhp0fFzwWNBkE&libraries=visualization">
let map, heatmap;
function initMap() {
map = new google.maps.Map(document.getElementById("map"), {
zoom: 13,
center: { lat: 37.775, lng: -122.434 },
mapTypeId: "satellite",
});
heatmap = new google.maps.visualization.HeatmapLayer({
data: getPoints(),
map: map,
});
}
function toggleHeatmap() {
heatmap.setMap(heatmap.getMap() ? null : map);
}
function changeGradient() {
const gradient = [
"rgba(0, 255, 255, 0)",
"rgba(0, 255, 255, 1)",
"rgba(0, 191, 255, 1)",
"rgba(0, 127, 255, 1)",
"rgba(0, 63, 255, 1)",
"rgba(0, 0, 255, 1)",
"rgba(0, 0, 223, 1)",
"rgba(0, 0, 191, 1)",
"rgba(0, 0, 159, 1)",
"rgba(0, 0, 127, 1)",
"rgba(63, 0, 91, 1)",
"rgba(127, 0, 63, 1)",
"rgba(191, 0, 31, 1)",
"rgba(255, 0, 0, 1)",
];
heatmap.set("gradient", heatmap.get("gradient") ? null : gradient);
}
function changeRadius() {
heatmap.set("radius", heatmap.get("radius") ? null : 20);
}
function changeOpacity() {
heatmap.set("opacity", heatmap.get("opacity") ? null : 0.2);
}
// Heatmap data: 500 Points
function getPoints() {
return [
new google.maps.LatLng(37.782551, -122.445368),
new google.maps.LatLng(37.782745, -122.444586),
new google.maps.LatLng(37.782842, -122.443688),
new google.maps.LatLng(37.782919, -122.442815),
new google.maps.LatLng(37.782992, -122.442112),
new google.maps.LatLng(37.7831, -122.441461),
new google.maps.LatLng(37.783206, -122.440829),
new google.maps.LatLng(37.783273, -122.440324),
new google.maps.LatLng(37.783316, -122.440023),
new google.maps.LatLng(37.783357, -122.439794),
new google.maps.LatLng(37.783371, -122.439687),
new google.maps.LatLng(37.783368, -122.439666),
new google.maps.LatLng(37.783383, -122.439594),
new google.maps.LatLng(37.783508, -122.439525),
new google.maps.LatLng(37.783842, -122.439591),
new google.maps.LatLng(37.784147, -122.439668),
new google.maps.LatLng(37.784206, -122.439686),
new google.maps.LatLng(37.784386, -122.43979),
new google.maps.LatLng(37.784701, -122.439902),
new google.maps.LatLng(37.784965, -122.439938),
new google.maps.LatLng(37.78501, -122.439947),
new google.maps.LatLng(37.78536, -122.439952),
new google.maps.LatLng(37.785715, -122.44003),
new google.maps.LatLng(37.786117, -122.440119),
new google.maps.LatLng(37.786564, -122.440209),
new google.maps.LatLng(37.786905, -122.44027),
new google.maps.LatLng(37.786956, -122.440279),
new google.maps.LatLng(37.800224, -122.43352),
new google.maps.LatLng(37.800155, -122.434101),
new google.maps.LatLng(37.80016, -122.43443),
new google.maps.LatLng(37.800378, -122.434527),
new google.maps.LatLng(37.800738, -122.434598),
new google.maps.LatLng(37.800938, -122.43465),
new google.maps.LatLng(37.801024, -122.434889),
new google.maps.LatLng(37.800955, -122.435392),
new google.maps.LatLng(37.800886, -122.435959),
new google.maps.LatLng(37.800811, -122.436275),
new google.maps.LatLng(37.800788, -122.436299),
new google.maps.LatLng(37.800719, -122.436302),
new google.maps.LatLng(37.800702, -122.436298),
new google.maps.LatLng(37.800661, -122.436273),
new google.maps.LatLng(37.800395, -122.436172),
new google.maps.LatLng(37.800228, -122.436116),
new google.maps.LatLng(37.800169, -122.43613),
new google.maps.LatLng(37.800066, -122.436167),
new google.maps.LatLng(37.784345, -122.422922),
new google.maps.LatLng(37.784389, -122.422926),
new google.maps.LatLng(37.784437, -122.422924),
new google.maps.LatLng(37.784746, -122.422818),
new google.maps.LatLng(37.785436, -122.422959),
new google.maps.LatLng(37.78612, -122.423112),
new google.maps.LatLng(37.786433, -122.423029),
new google.maps.LatLng(37.786631, -122.421213),
new google.maps.LatLng(37.78666, -122.421033),
new google.maps.LatLng(37.786801, -122.420141),
new google.maps.LatLng(37.786823, -122.420034),
new google.maps.LatLng(37.786831, -122.419916),
new google.maps.LatLng(37.787034, -122.418208),
new google.maps.LatLng(37.787056, -122.418034),
new google.maps.LatLng(37.787169, -122.417145),
new google.maps.LatLng(37.787217, -122.416715),
new google.maps.LatLng(37.786144, -122.416403),
new google.maps.LatLng(37.785292, -122.416257),
new google.maps.LatLng(37.780666, -122.390374),
new google.maps.LatLng(37.780501, -122.391281),
new google.maps.LatLng(37.780148, -122.392052),
new google.maps.LatLng(37.780173, -122.391148),
new google.maps.LatLng(37.780693, -122.390592),
new google.maps.LatLng(37.781261, -122.391142),
new google.maps.LatLng(37.781808, -122.39173),
new google.maps.LatLng(37.78234, -122.392341),
new google.maps.LatLng(37.782812, -122.393022),
new google.maps.LatLng(37.7833, -122.393672),
new google.maps.LatLng(37.783809, -122.394275),
new google.maps.LatLng(37.784246, -122.394979),
new google.maps.LatLng(37.784791, -122.395958),
new google.maps.LatLng(37.785675, -122.396746),
new google.maps.LatLng(37.786262, -122.39578),
new google.maps.LatLng(37.786776, -122.395093),
new google.maps.LatLng(37.787282, -122.394426),
new google.maps.LatLng(37.787783, -122.393767),
new google.maps.LatLng(37.788343, -122.393184),
new google.maps.LatLng(37.788895, -122.392506),
new google.maps.LatLng(37.789371, -122.391701),
new google.maps.LatLng(37.789722, -122.390952),
new google.maps.LatLng(37.790315, -122.390305),
new google.maps.LatLng(37.790738, -122.389616),
new google.maps.LatLng(37.779448, -122.438702),
new google.maps.LatLng(37.779023, -122.438585),
new google.maps.LatLng(37.778542, -122.438492),
new google.maps.LatLng(37.7781, -122.438411),
new google.maps.LatLng(37.777986, -122.438376),
new google.maps.LatLng(37.77768, -122.438313),
new google.maps.LatLng(37.777316, -122.438273),
new google.maps.LatLng(37.777135, -122.438254),
new google.maps.LatLng(37.776987, -122.438303),
new google.maps.LatLng(37.776946, -122.438404),
new google.maps.LatLng(37.776944, -122.438467),
new google.maps.LatLng(37.776892, -122.438459),
new google.maps.LatLng(37.776842, -122.438442),
new google.maps.LatLng(37.776822, -122.438391),
new google.maps.LatLng(37.776814, -122.438412),
new google.maps.LatLng(37.776787, -122.438628),
new google.maps.LatLng(37.776729, -122.43865),
new google.maps.LatLng(37.776759, -122.438677),
new google.maps.LatLng(37.776772, -122.438498),
new google.maps.LatLng(37.776787, -122.438389),
new google.maps.LatLng(37.776848, -122.438283),
new google.maps.LatLng(37.77687, -122.438239),
new google.maps.LatLng(37.777015, -122.438198),
new google.maps.LatLng(37.777333, -122.438256),
new google.maps.LatLng(37.777595, -122.438308),
new google.maps.LatLng(37.777797, -122.438344),
new google.maps.LatLng(37.77816, -122.438442),
new google.maps.LatLng(37.778414, -122.438508),
new google.maps.LatLng(37.778445, -122.438516),
new google.maps.LatLng(37.778503, -122.438529),
new google.maps.LatLng(37.778607, -122.438549),
new google.maps.LatLng(37.77867, -122.438644),
new google.maps.LatLng(37.778847, -122.438706),
new google.maps.LatLng(37.77924, -122.438744),
new google.maps.LatLng(37.779738, -122.438822),
new google.maps.LatLng(37.780201, -122.438882),
new google.maps.LatLng(37.7804, -122.438905),
new google.maps.LatLng(37.780501, -122.438921),
new google.maps.LatLng(37.780892, -122.438986),
new google.maps.LatLng(37.781446, -122.439087),
new google.maps.LatLng(37.781985, -122.439199),
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new google.maps.LatLng(37.76738, -122.405299),
new google.maps.LatLng(37.766604, -122.405297),
new google.maps.LatLng(37.765838, -122.4052),
new google.maps.LatLng(37.765139, -122.405139),
new google.maps.LatLng(37.764457, -122.405094),
new google.maps.LatLng(37.763716, -122.405142),
new google.maps.LatLng(37.762932, -122.405398),
new google.maps.LatLng(37.762126, -122.405813),
new google.maps.LatLng(37.761344, -122.406215),
new google.maps.LatLng(37.760556, -122.406495),
new google.maps.LatLng(37.759732, -122.406484),
new google.maps.LatLng(37.75891, -122.406228),
new google.maps.LatLng(37.758182, -122.405695),
new google.maps.LatLng(37.757676, -122.405118),
new google.maps.LatLng(37.757039, -122.404346),
new google.maps.LatLng(37.756335, -122.403719),
new google.maps.LatLng(37.755503, -122.403406),
new google.maps.LatLng(37.754665, -122.403242),
new google.maps.LatLng(37.753837, -122.403172),
new google.maps.LatLng(37.752986, -122.403112),
new google.maps.LatLng(37.751266, -122.403355),
];
}
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html,
body {
height: 100%;
margin: 0;
padding: 0;
}
#floating-panel {
position: absolute;
top: 10px;
left: 25%;
z-index: 5;
background-color: #fff;
padding: 5px;
border: 1px solid #999;
text-align: center;
font-family: "Roboto", "sans-serif";
line-height: 30px;
padding-left: 10px;
}
#floating-panel {
background-color: #fff;
border: 1px solid #999;
left: 25%;
padding: 5px;
position: absolute;
top: 10px;
z-index: 5;
}
<!DOCTYPE html>
<html>
<head>
<title>Heatmaps</title>
<script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
<script
src="https://maps.googleapis.com/maps/api/js?key=AIzaSyBIwzALxUPNbatRBj3Xi1Uhp0fFzwWNBkE&callback=initMap&libraries=visualization&v=weekly"
defer
></script>
<!-- jsFiddle will insert css and js -->
</head>
<body>
<div id="floating-panel">
<button onclick="toggleHeatmap()">Toggle Heatmap</button>
<button onclick="changeGradient()">Change gradient</button>
<button onclick="changeRadius()">Change radius</button>
<button onclick="changeOpacity()">Change opacity</button>
</div>
<div id="map"></div>
</body>
</html>
Create a starter application from sample
A skeleton starter application using TypeScript, Webpack, and Babel can be generated from this sample using one of the methods below.
Run Locally
Node.js is required to run this sample locally. Follow these instructions to install Node.js and NPM.
npm i -g '@googlemaps/js-samples'googlemaps-js-samples init layer-heatmap DESTINATION_FOLDER
Run in Google Cloud Shell
Google Cloud Shell is an interactive shell environment for Google Cloud Platform that makes it easy for you to learn and experiment with GCP and manage your projects and resources from your web browser.
Run in Cloud Shell