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mapv

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a library of geography visualization

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<!DOCTYPE html> <html> <head> <title>Leaflet.Canvas example</title> <!-- based on leaflet quick example: http://leafletjs.com/examples/quick-start-example.html --> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/maptalks@0.36.2/dist/maptalks.css" /> <style> html, body, #map { height: 100%; padding: 0; margin: 0;} </style> </head> <body> <div id="map"></div> <script src="https://cdn.jsdelivr.net/npm/maptalks@0.36.2/dist/maptalks.js"></script> <script src="../build/mapv.js"></script> <script> var map = new maptalks.Map('map', { center: [-102.17609405517578, 34.41583177128595], zoom: 4, attribution: { content: '&copy; Google Maps' }, baseLayer: new maptalks.TileLayer('base', { 'urlTemplate' : 'http://{s}.basemaps.cartocdn.com/dark_all/{z}/{x}/{y}.png', 'subdomains' : ['a','b','c','d','e'] }) }); var randomCount = 500; var data = []; while (randomCount--) { data.push({ geometry: { type: 'Point', coordinates: [-125.8 + Math.random() * 50, 30.3 + Math.random() * 20] }, count: 30 * Math.random() }); } var dataSet = new mapv.DataSet(data); var options = { fillStyle: 'rgba(255, 250, 50, 0.7)', shadowColor: 'rgba(255, 255, 50, 1)', shadowBlur: 10, size: 3, draw: 'simple' } var mapvLayer = new mapv.MaptalksLayer('mapv', dataSet, options).addTo(map); </script> </body> </html>