Leaflet/debug/map/canvas.html

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<!DOCTYPE html>
<html>
<head>
<title>Leaflet debug page</title>
<link rel="stylesheet" href="../../dist/leaflet.css" />
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<link rel="stylesheet" href="../css/screen.css" />
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<script type="text/javascript" src="../../build/deps.js"></script>
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<script src="../leaflet-include.js"></script>
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</head>
<body>
<div id="map" style="width: 600px; height: 600px; border: 1px solid #ccc"></div>
<script type="text/javascript">
var tiles = new L.TileLayer.Canvas();
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tiles.drawTile = function(canvas, tile, zoom) {
var ctx = canvas.getContext('2d');
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ctx.fillStyle = 'white';
ctx.fillRect(0, 0, 255, 255);
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ctx.fillStyle = 'black';
ctx.fillText('x: ' + tile.x + ', y: ' + tile.y + ', zoom:' + zoom, 20, 20);
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ctx.strokeStyle = 'red';
ctx.beginPath();
ctx.moveTo(0, 0);
ctx.lineTo(255, 0);
ctx.lineTo(255, 255);
ctx.lineTo(0, 255);
ctx.closePath();
ctx.stroke();
}
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var map = new L.Map('map', {center: new L.LatLng(50.5, 30.51), zoom: 15, layers: [tiles]});
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</script>
</body>
</html>