Menggunakan Drop Marker dan MarkerClusterer bersamaan?

8

Saya ingin membuat representasi data time-series yang agak menarik secara visual (Costco Store Locations dengan tanggal pembukaan).

Ide saya adalah memplotnya pada peta, dalam deret waktu, tetapi tampaknya jumlah marker pada peta mengurangi gambar yang ingin saya sajikan.

Membangun peta di Google Maps API v3, saya bisa mendapatkan INI jauh ..

Saya ingin dapat mengelompokkan penanda saat jatuh ke peta. Yaitu, Cluster akan tumbuh secara dinamis sebagai penanda drop down di peta.

www.spatialanalysis.ca

kode:

<!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(43.614052,-116.59131),
        new google.maps.LatLng(40.389885,-111.826691),
        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
sumber
1
Peta yang bagus! Saya suka pendekatan yang Anda gunakan untuk membuat spidol terbang. Ini bukan jawaban yang ketat untuk pertanyaan Anda, tetapi bagaimana dengan menggunakan bentuk yang berbeda yang terlihat lebih baik secara massal? Ada contoh yang bagus tentang Mengalir Data yang menggunakan lingkaran. Ini mungkin menghapus kebutuhan untuk mengelompokkan fitur.
— Stephen Lead
1
Telah menerima saran dan memperbarui peta: spatialanalysis.ca/time-series-data/costco.html
— Michael Markieta
1
Terlihat lebih baik, tetapi Anda benar bahwa itu masih membutuhkan clusterer. Saya mencoba menghubungkannya ke MarkerClusterer tetapi itu menghapus penanda ketika menambahkan cluster. Tidak banyak membantu, maaf
— Stephen Lead
Terima kasih atas bantuan Anda! Saya tidak berpikir keduanya (drop dan clusterer) bermain bersama dengan baik.
— Michael Markieta

Jawaban:

7

Ini mungkin bukan solusi yang paling elegan, tetapi, dengan beberapa penyesuaian durasi batas waktu dan penyesuaian ikon kluster, saya pikir Anda bisa mendapatkan efek yang Anda cari. Lihat contoh ini .

Caranya adalah dengan terlebih dahulu membuat marker dan mengatur mapatribut pada objek opsi marker. Ini menambahkan penanda ke peta dengan animasi drop bagus. Kemudian, createMarkerfungsi mengembalikan objek marker sehingga kita bisa menambahkannya ke cluster setelah dijatuhkan di peta. Penambahan marker ke cluster dibungkus dengan setTimeoutfungsinya sendiri sehingga ada penundaan antara marker yang jatuh ke peta dan ditambahkan ke cluster. Kalau tidak, itu semua terjadi terlalu cepat untuk dilihat.

Perhatikan bahwa untuk memiliki kontrol atas ikon kluster Anda harus menggunakan MarkerClusterPlus , versi MarkerCluster yang disempurnakan . MarkerClusterPlus kompatibel ke belakang.

Berikut adalah kode 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
sumber
Terima kasih, inilah tepatnya yang saya cari. Bergembiralah teman.
— Michael Markieta
Maaf telah membajak utas ini. Mencoba menerapkan solusi Anda di sini ke dalam peta sampel saya tetapi tidak berhasil. Hanya ingin tahu apakah Anda bisa memberi saya beberapa petunjuk apa yang saya lakukan salah? gis.stackexchange.com/questions/35535/…
— wibni
Hai @ wibni Saya memberikan jawaban untuk pertanyaan Anda di utas lainnya.
— Casey
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