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Activer Google Maps JavaScript API

Pour commencer, nous allons vous guider à travers la console Google Developers et effectuer deux ou trois petites choses :

  1. Créer ou sélectionner un projet
  2. Activer Google Maps JavaScript API et les services connexes
  3. Créer les clés appropriées
Continuer

Heatmaps

Read the documentation or view this example full screen.

// 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">

var 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() {
  var 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(37.783100, -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, -122.439790),
    new google.maps.LatLng(37.784701, -122.439902),
    new google.maps.LatLng(37.784965, -122.439938),
    new google.maps.LatLng(37.785010, -122.439947),
    new google.maps.LatLng(37.785360, -122.439952),
    new google.maps.LatLng(37.785715, -122.440030),
    new google.maps.LatLng(37.786117, -122.440119),
    new google.maps.LatLng(37.786564, -122.440209),
    new google.maps.LatLng(37.786905, -122.440270),
    new google.maps.LatLng(37.786956, -122.440279),
    new google.maps.LatLng(37.800224, -122.433520),
    new google.maps.LatLng(37.800155, -122.434101),
    new google.maps.LatLng(37.800160, -122.434430),
    new google.maps.LatLng(37.800378, -122.434527),
    new google.maps.LatLng(37.800738, -122.434598),
    new google.maps.LatLng(37.800938, -122.434650),
    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, -122.436130),
    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(37.786120, -122.423112),
    new google.maps.LatLng(37.786433, -122.423029),
    new google.maps.LatLng(37.786631, -122.421213),
    new google.maps.LatLng(37.786660, -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, -122.391730),
    new google.maps.LatLng(37.782340, -122.392341),
    new google.maps.LatLng(37.782812, -122.393022),
    new google.maps.LatLng(37.783300, -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, -122.395780),
    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(37.778100, -122.438411),
    new google.maps.LatLng(37.777986, -122.438376),
    new google.maps.LatLng(37.777680, -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, -122.438650),
    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(37.776870, -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(37.778160, -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(37.778670, -122.438644),
    new google.maps.LatLng(37.778847, -122.438706),
    new google.maps.LatLng(37.779240, -122.438744),
    new google.maps.LatLng(37.779738, -122.438822),
    new google.maps.LatLng(37.780201, -122.438882),
    new google.maps.LatLng(37.780400, -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, -122.429180),
    new google.maps.LatLng(37.797885, -122.429069),
    new google.maps.LatLng(37.797887, -122.429050),
    new google.maps.LatLng(37.797933, -122.428954),
    new google.maps.LatLng(37.798242, -122.428990),
    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(37.799320, -122.429251),
    new google.maps.LatLng(37.799590, -122.429309),
    new google.maps.LatLng(37.799677, -122.429324),
    new google.maps.LatLng(37.799966, -122.429360),
    new google.maps.LatLng(37.800288, -122.429430),
    new google.maps.LatLng(37.800443, -122.429461),
    new google.maps.LatLng(37.800465, -122.429474),
    new google.maps.LatLng(37.800644, -122.429540),
    new google.maps.LatLng(37.800948, -122.429620),
    new google.maps.LatLng(37.801242, -122.429685),
    new google.maps.LatLng(37.801375, -122.429702),
    new google.maps.LatLng(37.801400, -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, -122.409570),
    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, -122.422840),
    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(37.771400, -122.424179),
    new google.maps.LatLng(37.771352, -122.424220),
    new google.maps.LatLng(37.771248, -122.424327),
    new google.maps.LatLng(37.770904, -122.424781),
    new google.maps.LatLng(37.770520, -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(37.769300, -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(37.766680, -122.430058),
    new google.maps.LatLng(37.766633, -122.430109),
    new google.maps.LatLng(37.766580, -122.430211),
    new google.maps.LatLng(37.766367, -122.430594),
    new google.maps.LatLng(37.765910, -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(37.761210, -122.440068),
    new google.maps.LatLng(37.761064, -122.440720),
    new google.maps.LatLng(37.761040, -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, -122.444570),
    new google.maps.LatLng(37.757687, -122.443340),
    new google.maps.LatLng(37.757583, -122.443240),
    new google.maps.LatLng(37.757019, -122.442787),
    new google.maps.LatLng(37.756603, -122.442322),
    new google.maps.LatLng(37.756380, -122.441602),
    new google.maps.LatLng(37.755790, -122.441382),
    new google.maps.LatLng(37.754493, -122.442133),
    new google.maps.LatLng(37.754361, -122.442206),
    new google.maps.LatLng(37.753719, -122.442650),
    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(37.750390, -122.444010),
    new google.maps.LatLng(37.750448, -122.444013),
    new google.maps.LatLng(37.750536, -122.444040),
    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(37.791060, -122.399334),
    new google.maps.LatLng(37.790538, -122.398718),
    new google.maps.LatLng(37.790095, -122.398086),
    new google.maps.LatLng(37.789644, -122.397360),
    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(37.787630, -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(37.786540, -122.395610),
    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, -122.393830),
    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(37.785500, -122.393650),
    new google.maps.LatLng(37.785770, -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, -122.400470),
    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, -122.400260),
    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, -122.400890),
    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(37.785660, -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(37.801740, -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(37.799750, -122.421700),
    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(37.778740, -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(37.776440, -122.411800),
    new google.maps.LatLng(37.776295, -122.411614),
    new google.maps.LatLng(37.776158, -122.411440),
    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, -122.409180),
    new google.maps.LatLng(37.775868, -122.408730),
    new google.maps.LatLng(37.776256, -122.408240),
    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, -122.403950),
    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(37.783450, -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(37.765790, -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, -122.410720),
    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(37.765500, -122.413553),
    new google.maps.LatLng(37.765448, -122.414053),
    new google.maps.LatLng(37.765388, -122.414645),
    new google.maps.LatLng(37.765323, -122.415250),
    new google.maps.LatLng(37.765303, -122.415847),
    new google.maps.LatLng(37.765251, -122.416439),
    new google.maps.LatLng(37.765204, -122.417020),
    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(37.765100, -122.419852),
    new google.maps.LatLng(37.765083, -122.420349),
    new google.maps.LatLng(37.765045, -122.420930),
    new google.maps.LatLng(37.764992, -122.421481),
    new google.maps.LatLng(37.764980, -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, -122.404200),
    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(37.776240, -122.411514),
    new google.maps.LatLng(37.775725, -122.412145),
    new google.maps.LatLng(37.775190, -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(37.770090, -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(37.767980, -122.405745),
    new google.maps.LatLng(37.767380, -122.405299),
    new google.maps.LatLng(37.766604, -122.405297),
    new google.maps.LatLng(37.765838, -122.405200),
    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(37.758910, -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)
  ];
}
<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>
/* 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;
}
<!-- Replace the value of the key parameter with your own API key. -->
<script async defer
        src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk&libraries=visualization&callback=initMap">
    </script>

Essayez par vous-même

Placez la souris en haut à droite du bloc de code pour le copier ou l'ouvrir dans JSFiddle.

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Heatmaps</title>
    <style>
      /* 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>
  </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>
    <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">

      var 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() {
        var 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(37.783100, -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, -122.439790),
          new google.maps.LatLng(37.784701, -122.439902),
          new google.maps.LatLng(37.784965, -122.439938),
          new google.maps.LatLng(37.785010, -122.439947),
          new google.maps.LatLng(37.785360, -122.439952),
          new google.maps.LatLng(37.785715, -122.440030),
          new google.maps.LatLng(37.786117, -122.440119),
          new google.maps.LatLng(37.786564, -122.440209),
          new google.maps.LatLng(37.786905, -122.440270),
          new google.maps.LatLng(37.786956, -122.440279),
          new google.maps.LatLng(37.800224, -122.433520),
          new google.maps.LatLng(37.800155, -122.434101),
          new google.maps.LatLng(37.800160, -122.434430),
          new google.maps.LatLng(37.800378, -122.434527),
          new google.maps.LatLng(37.800738, -122.434598),
          new google.maps.LatLng(37.800938, -122.434650),
          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, -122.436130),
          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(37.786120, -122.423112),
          new google.maps.LatLng(37.786433, -122.423029),
          new google.maps.LatLng(37.786631, -122.421213),
          new google.maps.LatLng(37.786660, -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, -122.391730),
          new google.maps.LatLng(37.782340, -122.392341),
          new google.maps.LatLng(37.782812, -122.393022),
          new google.maps.LatLng(37.783300, -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, -122.395780),
          new google.maps.LatLng(37.786776, -122.395093),
          new google.maps.LatLng(37.787282, -122.394426),
          new google.maps.LatLng(37.787783, -122.393767),
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      }
    </script>
    <script async defer
        src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=visualization&callback=initMap">
    </script>
  </body>
</html>

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Google Maps JavaScript API
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