D3 Examples - Reproject d3-carto-map three modes including gnomonic

Reproject d3-carto-map three modes including gnomonic

Trying to make a little page to reproject data using d3.carto jam and it kind of works.

This defaults to a gnomonic projection w/ map.mode('globe') which makes for some rotating cool rotation effects when panning the map rather than just transitioning every path like in projection mode.

Then there's the boring old transform mode which I think is just mercator.

Please see d3-cart-map readme.md for a little explanation of the map modes (from which 'globe' is missing). And show me how to use them correctly.

https://github.com/emeeks/d3-carto-map

Things which could make this a little nicer:

-Adding some graticules maybe not to the feature group.

-Adding different kinds of layers.

-Figure out what the errors are about the paths which get multiplied when panning in globe mode.

For some much cleaner better javascript examples of how to do similar things w/ d3 please see Jason Davies stuff like http://www.jasondavies.com/maps/transition/ and Mike Bostocks stuff like /mbostock/3711652.

Really I'm just trying to figure out how to kind of do some things they did w/ d3-carto-map.

As always let me know if there is anything silly in my code or how I could make it better.

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<html xmlns="https://www.w3.org/1999/xhtml">
<head>
  <title>reprojection selection</title>
  <meta charset="utf-8" />
​
    <link type="text/css" rel="stylesheet" href="https://raw.githubusercontent.com/emeeks/d3-carto-map/master/d3map.css" />
    <link type="text/css" rel="stylesheet" href="https://raw.githubusercontent.com/emeeks/d3-carto-map/master/examples/example.css" />
​
</head>
​
<style>
  html,body {
    height: 100%;
    width: 100%;
    margin: 0;
  }
​
  #map {
    height: 90%;
    width: 90%;
    top: 10%;
    position: absolute;
  }
​
  #title {
    padding: 20px;
  }
​
  .bluesquare {
    fill: green;
    stroke: gray;
    stroke-width: 1px;
  }
​
  button.marker {
    position: fixed;
    z-index: 1;
    bottom: 150px;
    left: 150px;
  }
​
  .countryborders{
    fill:#99d8c9;
    stroke:#de2d26;
  }
​
  .reproject{
    margin-top:-15;
  }
​
​
​
.reprojectshp{
  margin-top:-15;
}
​
.addgr{
  margin-top:-15;
}
​
#projection-menu{
  margin-top:5px;
}
​
.grat{
​
  stroke:grey;
  stroke-width:1px;
  stroke-opacity:.7;
  fill:none;
​
}
​
​
  </style>
​
<select id="projection-menu"></select>
<script   src="./projmode.js" type="text/javascript">
</script>
<body onload="makeSomeMaps()">
<body onload="makeSomeMaps()">
​
<div id="map"></div>
​
<footer>
<script src="https://d3js.org/d3.v3.min.js" charset="utf-8" type="text/javascript"></script>
<script src="https://d3js.org/topojson.v1.min.js" type="text/javascript">
</script>
<script src="https://d3js.org/d3.geo.projection.v0.min.js" type="text/javascript">
</script>
<script src="/mpmckenna8/raw/55557f2cc06ae603f242/tile.js" type="text/javascript">
</script>
<script src="/mpmckenna8/raw/55557f2cc06ae603f242/d3.quadtiles.js" type="text/javascript">
</script>
<script src="/mpmckenna8/raw/55557f2cc06ae603f242/d3.geo.raster.js" type="text/javascript">
</script>
<script src="https://cdn.jsdelivr.net/gh/emeeks/d3-carto-map/d3.carto.map.js" type="text/javascript">
</script>
</footer>
</body>
</html>
​
    