Usando Drop Markers e MarkerClusterer juntos?

8

Quero criar uma representação visualmente atraente de dados de séries temporais (Locais da loja Costco com datas de abertura).

Minha idéia era plotá-los em um mapa, em séries temporais, mas parece que a quantidade de marcadores no mapa diminui a imagem que quero apresentar.

Construção do mapa no Google Maps v3 API, eu era capaz de conseguir ESTE agora ..

Quero poder agrupar os marcadores quando eles caírem no mapa. Ou seja, os clusters aumentariam dinamicamente à medida que os marcadores caíssem no mapa.

www.spatialanalysis.ca

código:

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>Locations</title>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">

//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//
//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//
//**//  Author: Michael Markieta
//**//  Project: Costco Store Locations
//**//  Data retreived from: http://locationscomplete.com/store-list/costco
//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//
//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//

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        new google.maps.LatLng(39.582488,-119.7368),
        new google.maps.LatLng(48.147071,-122.188728),
        new google.maps.LatLng(21.966207,-159.379784),
        new google.maps.LatLng(39.64345,-106.888929),
        new google.maps.LatLng(35.819171,-78.624095),
        new google.maps.LatLng(38.314966,-85.575074),
        new google.maps.LatLng(45.091701,-93.424209),
        new google.maps.LatLng(36.137384,-86.882867),
        new google.maps.LatLng(33.881385,-84.467067),
        new google.maps.LatLng(34.138521,-117.443747),
        new google.maps.LatLng(33.707108,-116.272281),
        new google.maps.LatLng(46.61659,-111.997627),
        new google.maps.LatLng(40.148544,-82.977471),
        new google.maps.LatLng(41.601098,-87.8602),
        new google.maps.LatLng(39.993388,-104.978402),
        new google.maps.LatLng(40.403823,-79.920262),
        new google.maps.LatLng(26.488717,-81.786306),
        new google.maps.LatLng(26.681125,-80.218562),
        new google.maps.LatLng(33.698181,-117.824643),
        new google.maps.LatLng(34.939252,-81.991329),
        new google.maps.LatLng(34.83597,-82.312969),
        new google.maps.LatLng(37.389239,-121.883251),
        new google.maps.LatLng(41.677196,-83.626067),
        new google.maps.LatLng(43.31041,-87.924802),
        new google.maps.LatLng(39.72291,-121.810157),
        new google.maps.LatLng(34.515393,-117.319573),
        new google.maps.LatLng(32.364332,-86.140767),
        new google.maps.LatLng(39.18673,-76.794937),
        new google.maps.LatLng(29.577884,-98.318589),
        new google.maps.LatLng(41.263559,-96.104773),
        new google.maps.LatLng(46.561741,-120.49665),
        new google.maps.LatLng(36.294138,-119.318548),
        new google.maps.LatLng(47.358133,-122.601163),
        new google.maps.LatLng(35.194554,-106.65748),
        new google.maps.LatLng(38.893358,-104.718057),
        new google.maps.LatLng(38.669984,-121.724059),
        new google.maps.LatLng(30.462738,-84.214734),
        new google.maps.LatLng(34.112427,-117.828694),
        new google.maps.LatLng(39.709654,-74.286927),
        new google.maps.LatLng(25.6562,-80.412506),
        new google.maps.LatLng(33.389225,-111.667683),
        new google.maps.LatLng(40.056345,-74.155005),
        new google.maps.LatLng(38.009856,-121.83862),
        new google.maps.LatLng(37.78634,-121.256909),
        new google.maps.LatLng(43.097724,-89.523653),
        new google.maps.LatLng(39.645129,-105.008454),
        new google.maps.LatLng(39.558634,-104.776266),
        new google.maps.LatLng(45.028178,-93.040949),
        new google.maps.LatLng(29.732819,-95.438941),
        new google.maps.LatLng(42.905718,-112.45512),
        new google.maps.LatLng(47.353816,-122.12213),
        new google.maps.LatLng(38.668558,-76.87579),
        new google.maps.LatLng(42.605107,-83.293988),
        new google.maps.LatLng(41.908953,-88.340137),
        new google.maps.LatLng(36.171045,-115.16097),
        new google.maps.LatLng(33.850288,-118.141792),
        new google.maps.LatLng(21.327791,-158.088361),
        new google.maps.LatLng(33.918792,-118.343717),
        new google.maps.LatLng(32.907041,-96.444231),
        new google.maps.LatLng(33.994864,-118.143066),
        new google.maps.LatLng(33.59978,-111.98313),
        new google.maps.LatLng(37.479969,-122.216984),
        new google.maps.LatLng(38.903972,-104.81736),
        new google.maps.LatLng(40.795707,-73.932252),
        new google.maps.LatLng(38.596055,-90.505135),
        new google.maps.LatLng(41.313165,-81.817003),
        new google.maps.LatLng(37.61726,-122.088419),
        new google.maps.LatLng(46.14725,-123.917569),
        new google.maps.LatLng(34.272487,-118.427676),
        new google.maps.LatLng(40.733389,-73.86409),
        new google.maps.LatLng(43.259394,-123.351215),
        new google.maps.LatLng(32.817013,-117.154214),
        new google.maps.LatLng(38.96407,-76.851827),
        new google.maps.LatLng(34.946448,-85.249178),
        new google.maps.LatLng(33.872015,-84.330505),
        new google.maps.LatLng(41.908543,-87.835255),
        new google.maps.LatLng(41.723497,-88.038493),
        new google.maps.LatLng(42.21935,-87.905949),
        new google.maps.LatLng(44.748879,-93.293251),
        new google.maps.LatLng(45.621461,-122.471505),
        new google.maps.LatLng(34.247276,-77.874103),
        new google.maps.LatLng(32.621279,-96.911471),
        new google.maps.LatLng(40.690524,-111.957864),
        new google.maps.LatLng(40.890332,-111.894004),
        new google.maps.LatLng(38.645195,-77.299368)
    ];

    var markers = [];
    var iterator = 0;

    function initialize() { 
        drop();
        var mapOptions = {
            zoom: 3,
            panControl: false,
            zoomControl: false,
            scaleControl: false,
            streetViewControl: false,
            overviewMapControl: false,
            mapTypeId: google.maps.MapTypeId.ROADMAP,
            center: new google.maps.LatLng(49.645,-95.315),
        };
        map = new google.maps.Map(document.getElementById("map_canvas"),
        mapOptions);
    }

    function drop() {
        for (var i = 0; i < locations.length; i++) {
            setTimeout(function() {
            addMarker();
            }, i * 50);
        }
    }

//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//
//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//
//**//  Custom map markers created with:
//**//  Google Map Custom Marker Maker 2011
//**//  http://www.powerhut.co.uk/googlemaps/custom_markers.php
//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//
//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//**//

    function addMarker() {
        var image = new google.maps.MarkerImage('markers/costco_image.png',
        new google.maps.Size(12, 12),
        new google.maps.Point(0,0),
        new google.maps.Point(6, 12));
        var shadow = new google.maps.MarkerImage('markers/costco_shadow.png',
        new google.maps.Size(22, 12),
        new google.maps.Point(0,0),
        new google.maps.Point(6, 12));
        markers.push(new google.maps.Marker({
            position: locations[iterator],
            map: map,
            draggable: false,
            animation: google.maps.Animation.DROP,
            shadow: shadow,
            icon: image,
        }));
        iterator++;
    }
</script>
</head>
<div id="map_canvas" style=
    "position: absolute;
    top: 50%;
    margin-top: -300px;
    left: 50%;
    margin-left: -500px;
    width: 1000px;
    height: 600px;
    border-style: solid;
    border-width: 1px;
    border-color: darkgray;">
    </div>
<body onload="initialize()">
</body>
</html>
google-maps clustering markers Michael Markieta
fonte
1
Bom mapa! Gosto da abordagem que você adotou para que os marcadores voassem. Essa não é uma resposta estrita à sua pergunta, mas que tal usar uma forma diferente que pareça melhor em massa? Há um bom exemplo de dados fluidos que usa círculos. Isso pode remover a necessidade de agrupar os recursos.
Stephen Lead
1
Ter tomado a sugestão e atualizado o mapa: spatialanalysis.ca/time-series-data/costco.html
Michael Markieta
1
Parece melhor, mas você está certo de que ainda precisa de um cluster. Tentei conectá -lo ao MarkerClusterer, mas isso remove os marcadores quando adiciona os clusters. Não ajuda muito, desculpe
Stephen chumbo
Obrigado pela sua ajuda de qualquer maneira! Eu não acho que os dois (drop e clusterer) jogam bem juntos.
Michael Markieta 28/09

Respostas:

7

Essa pode não ser a solução mais elegante, mas, com alguns ajustes nas durações do tempo limite e na personalização dos ícones do cluster, acho que você pode obter o efeito que está procurando. Veja este exemplo .

O truque é primeiro criar um marcador e definir o mapatributo no objeto de opções do marcador. Isso adiciona o marcador ao mapa com a bela animação drop. Em seguida, a createMarkerfunção retorna o objeto marcador para que possamos adicioná-lo ao cluster depois que ele for solto no mapa. A adição do marcador ao cluster é agrupada em sua própria setTimeoutfunção, para que haja um atraso entre o marcador que cai no mapa e é adicionado ao cluster. Caso contrário, tudo acontece muito rápido para ver.

Observe que, para ter controle sobre os ícones do cluster, você deve usar o MarkerClusterPlus , a versão aprimorada do MarkerCluster . O MarkerClusterPlus é compatível com versões anteriores.

Aqui está o código JS:

var map;
var mc;
var cityHall = new google.maps.LatLng(39.95240, -75.16362);

//multiplier min and max, for our random numbers
var min = .999;
var max = 1.001;

function initialize(){

    var options = { 
        zoom: 11, 
        center: cityHall, 
        mapTypeId: google.maps.MapTypeId.ROADMAP 
    }; 

    map = new google.maps.Map(document.getElementById('map'), options); 

    //marker cluster
    mc = new MarkerClusterer(map);  

    //plot a 100 markers that are randomly scattered around City Hall
    var i=0;

    for (i=0;i<=100;i++) {

        setTimeout(function() {
            var marker = addMarker();

                setTimeout(function () { 
                    mc.addMarker(marker);
                }, 1500);

        }, i * 50);

    }

}

function addMarker() {

    var newLat = cityHall.lat() * (Math.random() * (max - min) + min);
    var newLng = cityHall.lng() * (Math.random() * (max - min) + min);      

    var marker = new google.maps.Marker({
        position: new google.maps.LatLng(newLat,newLng),
        animation: google.maps.Animation.DROP,
        map: map
    });

    return marker;
}
Casey
fonte
Obrigado, é exatamente isso que eu estava procurando. Saúde, companheiro.
Michael Markieta 21/10
Desculpe por seqüestrar este tópico. Tentando implementar sua solução aqui no meu mapa de amostra, mas sem sorte. Só estou imaginando se você poderia me dar algumas dicas do que estou fazendo de errado? gis.stackexchange.com/questions/35535/…
wibni
Olá, @wibni Forneci uma resposta para sua pergunta no outro tópico.
Casey #