1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
<!DOCTYPE html>
<html>
<head>
<title>Leaflet debug page</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" />
<script src="../leaflet-include.js"></script>
<style>
#map {
margin: 0;
width: auto;
}
.redTile {
border: red 1px solid;
line-height: 256px;
text-align: center;
}
table {
border-collapse: collapse;
}
table th, table td {
border: 1px #444 solid;
margin: 0;
}
</style>
</head>
<body>
<p>Keep track of how many tileload/tileunload events are being fired. The counts should always match. See <a href='https://github.com/Leaflet/Leaflet/issues/4093'>#4093</a>, <a href='https://github.com/Leaflet/Leaflet/issues/4193'>#4193</a></p>
<div id="map" class="map"></div>
<table>
<tr>
<th>
<th>Start
<th>Load
<th>Error
<th>Unload
<th>Visible
<th>Grid load
<tr>
<th>Grid
<td id='grid-tileloadstart'>
<td id='grid-tileload'>
<td id='grid-tileerror'>
<td id='grid-tileunload'>
<td id='grid-visible'>
<td id='grid-load'>
<tr>
<th>Positron
<td id='positron-tileloadstart'>
<td id='positron-tileload'>
<td id='positron-tileerror'>
<td id='positron-tileunload'>
<td id='positron-visible'>
<td id='positron-load'>
</table>
<p>start = unload + visible on screen</p>
<div><button id="dc">DC</button>(flyTo)</div>
<div><button id="sf">SF</button>(setView, 5 sec)</div>
<div><button id="trd">TRD</button>(flyTo 20 sec)</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>
<script>
var mapopts = {
center: [35, -122],
zoom: 5.75,
zoomSnap: 0.25,
fadeAnimation: true
};
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', mapopts);
var positron = L.tileLayer('http://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}.png', {
attribution: '© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors, © <a href="http://cartodb.com/attributions">CartoDB</a>'
})
var grid = L.gridLayer({
attribution: 'Grid Layer',
// tileSize: L.point(150, 80)
tileSize: L.point(256, 256)
});
grid.createTile = function (coords/*, done*/) {
var tile = L.DomUtil.create('div', 'redTile');
tile.innerHTML = [coords.x, coords.y, coords.z].join(', ');
return tile;
};
var gridCounts = {
tileload: 0,
tileerror: 0,
tileloadstart: 0,
tileunload: 0,
load: 0
};
var positronCounts = {
tileload: 0,
tileerror: 0,
tileloadstart: 0,
tileunload: 0,
load: 0
};
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);
document.getElementById('dc').onclick = function () { map.flyTo(dc, 10); };
document.getElementById('sf').onclick = function () { map.setView(sf, 10, {duration: 5, animate: true}); };
document.getElementById('trd').onclick = function () { map.flyTo(trd, 10, {duration: 20}); };
document.getElementById('lnd').onclick = function () { map.flyTo(lnd, 9.25); };
document.getElementById('kyiv').onclick = function () { map.setView(kyiv, 9.25); };
document.getElementById('nul').onclick = function () { map.flyTo([0, 0], 10); };
document.getElementById('mad').onclick = function () { map.fitBounds(madBounds); };
document.getElementById('stop').onclick = function () { map.stop(); };
</script>
</body>
</html>
|
