githubmirror/Leaflet

debug/map/tile-debug.html
248 строк8 KB
danieldegroot2
Change OpenStreetMap links to HTTPS (#8009)
18 фев 2022, 07:42
18 фев 2022, 07:42ace6be6
<!DOCTYPE html>
<html>
<head>
    <title>Leaflet tile debug</title>

    <link rel="stylesheet" href="../../dist/leaflet.css" />

    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <link rel="stylesheet" href="../css/screen.css" />
    <style>
    * {
        margin: 0;
        padding: 0;
    }
    #outer {
        position: absolute;
        width: calc(2*256px + 600px);
        height: calc(2*256px + 400px);
        border: 10px solid rgba(0, 0, 255, 0.4);
        background-color: transparent;
    }
    #middle, #map {
        position: absolute;
        margin: calc(266px - 10px);
        width: 600px;
        height: 400px;
        border: 10px solid transparent;
    }
    #middle {
        pointer-events: none;
        z-index: 1000;
        border-color: rgba(0, 255, 0, 0.4);
    }
    #map {
        overflow: visible;
    }
    button {
        width: 40px;
        text-align: center;
        margin-right: 5px;
    }
    .grid {
        border: red 1px solid;
        line-height: 256px;
        text-align: center;
        box-sizing: border-box;
    }
    #stats {
        position: absolute;
        z-index: 1000;
        width: 300px;
        right: 0;
        top: 10px;
        bottom: 0;
    }
    #zoomtable td {
        height: 40px;
    }
    .diag {
        margin-bottom: 20px;
    }
    tr:nth-child(odd) {
        background-color: #eee;
    }
    </style>

    <script src="../../dist/leaflet-src.js"></script>
</head>
<body>
    <div id="outer"></div>
    <div id="middle"></div>
    <div id="map"></div>

    <div id="stats">
        <div class="diag">
            <div><button id="dc">DC</button>(flyTo)</div>
            <div><button id="sf">SF</button>(setView)</div>
            <div><button id="trd">TRD</button>(flyTo)</div>
            <div><button id="lnd">LND</button>(fract. zoom)</div>
            <div><button id="kyiv">KIEV</button>(setView, fract. zoom)</div>
            <div><button id="mad">MAD</button>(fitBounds)</div>
            <div><button id="nul">NUL</button>(image overlay)</div>
            <div><button id="stop">stop</button></div>
        </div>

        <table id="zoomtable" class="diag">
            <tr><td>on movestart</td><td id='movestart' width=230></td></tr>
            <tr><td>on zoomstart</td><td id='zoomstart'></td></tr>
            <tr><td>on move</td><td id='move'></td></tr>
            <tr><td>on moveend</td><td id='moveend'></td></tr>
            <tr><td>on zoomend</td><td id='zoomend'></td></tr>
            <tr><td>on grid load</td><td id='load'></td></tr>
        </table>

        <table>
            <tr>
                <th>event</th>
                <th>Grid</th>
                <th>Positron</th>
            </tr>
            <tr>
                <td>tileloadstart</td>
                <td id='grid-tileloadstart'></td>
                <td id='positron-tileloadstart'></td>
            </tr>
            <tr>
                <td>tileload</td>
                <td id='grid-tileload'></td>
                <td id='positron-tileload'></td>
            </tr>
            <tr>
                <td>tileerror</td>
                <td id='grid-tileerror'></td>
                <td id='positron-tileerror'></td>
            </tr>
            <tr>
                <td>tileunload</td>
                <td id='grid-tileunload'></td>
                <td id='positron-tileunload'></td>
            </tr>
            <tr>
                <td>visible</td>
                <td id='grid-visible'></td>
                <td id='positron-visible'></td>
            </tr>
            <tr>
                <td>grid load</td>
                <td id='grid-load'></td>
                <td id='positron-load'></td>
            </tr>
        </table>
        <button id="reset">reset</button>
    </div>

    <script>

        var kyiv = [50.5, 30.5],
            lnd = [51.51, -0.12],
            sf = [37.77, -122.42],
            dc = [38.91, -77.04],
            trd = [63.41, 10.41],
            madBounds = [[40.70, -4.19], [40.12, -3.31]],
            mad = [40.40, -3.7];

        var map = L.map('map', {
            // zoomSnap: 0,
            // zoomAnimation: false,
            fadeAnimation: false
        }).setView(dc, 16);

        var gridCounts = {},
            positronCounts = {},
            gridLoadData = {};

        resetCounter();

        var positron = L.tileLayer('http://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}.png', {
            attribution: '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors, &copy; <a href="http://cartodb.com/attributions">CartoDB</a>'
        });

        var grid = L.gridLayer({
            attribution: 'Grid Layer',
            tileSize: L.point(256, 256)
        });

        grid.createTile = function (coords) {
            var tile = L.DomUtil.create('div', 'grid');
            var indexStr = [coords.x, coords.y, coords.z].join(', ');
            if (!(indexStr in gridLoadData)) {
                gridLoadData[indexStr] = 0;
            }
            tile.innerHTML = ++gridLoadData[indexStr];

            // double tile loading alert
            // if (gridLoadData[indexStr] > 1) {
                // alert(indexStr);
            // }

            // more tile loadings -> more red grid tile
            tile.style.backgroundColor = 'rgba(255,0,0,' + (gridLoadData[indexStr] - 1) / 5 + ')';
            return tile;
        };

        grid.on('tileload tileunload tileerror tileloadstart load', function(ev){
            document.getElementById('grid-' + ev.type).innerHTML = ++gridCounts[ev.type];
            document.getElementById('grid-visible').innerHTML = grid._container.querySelectorAll('.leaflet-tile').length;
        });

        positron.on('tileload tileunload tileerror tileloadstart load', function(ev){
            document.getElementById('positron-' + ev.type).innerHTML = ++positronCounts[ev.type];
            document.getElementById('positron-visible').innerHTML = positron._container.querySelectorAll('.leaflet-tile').length;
        });

        map.addLayer(positron);
        map.addLayer(grid);

        var marker1 = L.marker(kyiv).addTo(map),
            marker2 = L.marker(lnd).addTo(map),
            marker3 = L.marker(dc).addTo(map),
            marker4 = L.marker(sf).addTo(map),
            marker5 = L.marker(trd).addTo(map),
            marker6 = L.marker(mad).addTo(map);

        var nullIslandKitten = L.imageOverlay('http://placekitten.com/300/400?image=6', [[-0.2,-0.15], [0.2, 0.15]]).addTo(map);

        document.getElementById('dc').onclick   = function () { map.flyTo(dc,  7, {duration: 40}); };
        document.getElementById('sf').onclick   = function () { map.setView(sf, 10, {duration: 40, animate: true}); };
        document.getElementById('trd').onclick  = function () { map.flyTo(trd, 10, {duration: 40}); };
        document.getElementById('lnd').onclick  = function () { map.flyTo(lnd, 9.25, {duration: 40}); };
        document.getElementById('kyiv').onclick = function () { map.setView(kyiv, 9.25, {duration: 40}); };
        document.getElementById('mad').onclick  = function () { map.fitBounds(madBounds); };
        document.getElementById('nul').onclick  = function () { map.flyTo([0, 0], 10, {duration: 40}); };
        document.getElementById('stop').onclick = function () { map.stop(); };

        document.getElementById('reset').onclick = function () {
            resetCounter();
        }

        function attachMoveEvent(name) {
            map.on(name, function(){
                document.getElementById(name).innerHTML = map.getCenter() + ' z' + map.getZoom();
            });
        }

        attachMoveEvent('movestart');
        attachMoveEvent('zoomstart');
        attachMoveEvent('move');
        attachMoveEvent('moveend');
        attachMoveEvent('zoomend');

        positron.on('load', function(){
            document.getElementById('load').innerHTML = map.getCenter() + ' z' + map.getZoom();
        });

        function resetCounter() {
            var fields = ['tileload', 'tileerror', 'tileloadstart', 'tileunload', 'load', 'visible'];

            for (var i = 0; i < fields.length; i++) {
                gridCounts[fields[i]] = 0;
                positronCounts[fields[i]] = 0;
                document.getElementById('positron-' + fields[i]).innerHTML = 0;
                document.getElementById('grid-' + fields[i]).innerHTML = 0;
            }
        };
    </script>
</body>
</html>