Vega 3 zoomable tile map example

Vega 3 zoomable tile map example.

based on zoomable world map example with additional stamen map layer

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<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://cdn.jsdelivr.net/npm/vega@3"></script>
    <script src="https://cdn.jsdelivr.net/npm/vega-embed@3"></script>
  <style>
    body {
      font-family: sans-serif;
    }
    
    .vega-actions a {
      padding: 0.2em;
    }
  </style>
</head>
​
<body>  
  <div id="vis"></div>
  
  <script>
    const spec = "zoomable_tile_map.vg.json";
    vegaEmbed('#vis', spec);
  </script>
</body>
    

https://cdn.jsdelivr.net/npm/vega@3

https://cdn.jsdelivr.net/npm/vega-embed@3