D3 Examples - VisDock in Raster & Vector Zoom Example

VisDock in Raster & Vector Zoom Example

The VisDock toolkit has been integrated into this Raster & Vector Zoom example built with D3.js (found here) by Mike Bostock. Selection tools do not provide much functionality in this example. Annotations, Pan & Zoom tools and VisDock lenses can be used for exploration of the map. Especially, the BirdEye provides the overview of the map from a higher perspective. For more information about VisDock, cick on the link.

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<!DOCTYPE html>
<meta charset="utf-8">
<style>
​
body {
  margin: 0;
}
​
path {
  fill: none;
  stroke: red;
  stroke-linejoin: round;
  stroke-width: 1.5px;
}
​
</style>
<body>
<script src="https://d3js.org/d3.v3.min.js"></script>
<script src="https://d3js.org/d3.geo.tile.v0.min.js"></script>
<script src="https://d3js.org/topojson.v1.min.js"></script>
​
<link href="https://rawgithub.com/VisDockHub/NewVisDock/master/master/visdock.css" rel="stylesheet" type="text/css"/>
<script src="https://rawgithub.com/visdockhub/newvisdock/master/master/visdock.js"></script>
<script src="https://rawgithub.com/visdockhub/newvisdock/master/master/2d.js"></script>
<script src="https://rawgithub.com/visdockhub/newvisdock/master/master/intersectionutilities.js"></script>
<script src="https://rawgithub.com/visdockhub/newvisdock/master/master/visdock.utils.js"></script>
<script>
​
var width = 1200;
    height = 700;
​
VisDock.init("body", {width: 1200, height: 700});
var viewport = VisDock.getViewport();
​
var tile = d3.geo.tile()
    .size([width, height]);
​
var projection = d3.geo.mercator()
    .scale((1 << 12) / 2 / Math.PI)
    .translate([width / 2, height / 2]);
​
var center = projection([-100, 40]);
​
var path = d3.geo.path()
    .projection(projection);
​
var zoom = d3.behavior.zoom()
    .scale(projection.scale() * 2 * Math.PI)
    .scaleExtent([1 << 11, 1 << 14])
    .translate([width - center[0], height - center[1]])
    .on("zoom", zoomed);
​
var svg = viewport;   
​
var raster = svg.append("g");
​
var vector = svg.append("path");
​
d3.csv("us-state-capitals.csv", type, function(error, capitals) {
  svg.call(zoom);
  vector.datum({type: "FeatureCollection", features: capitals});
  zoomed();
});
​
function type(d) {
  return {
    type: "Feature",
    properties: {
      name: d.description,
      state: d.name
    },
    geometry: {
      type: "Point",
      coordinates: [+d.longitude, +d.latitude]
    }
  };
}
​
function zoomed() {
  var tiles = tile
      .scale(zoom.scale())
      .translate(zoom.translate())
      ();
​
  projection
      .scale(zoom.scale() / 2 / Math.PI)
      .translate(zoom.translate());
​
  vector
      .attr("d", path);
​
  var image = raster
      .attr("transform", "scale(" + tiles.scale + ")translate(" + tiles.translate + ")")
    .selectAll("image")
      .data(tiles, function(d) { return d; });
​
  image.exit()
      .remove();
​
  image.enter().append("image")
      .attr("xlink:href", function(d) { return "https://" + ["a", "b", "c", "d"][Math.random() * 4 | 0] + ".tiles.mapbox.com/v3/examples.map-vyofok3q/" + d[2] + "/" + d[0] + "/" + d[1] + ".png"; })
      .attr("width", 1)
      .attr("height", 1)
      .attr("x", function(d) { return d[0]; })
      .attr("y", function(d) { return d[1]; });
      
}
BirdView.init(viewport, 1200, 700)
d3.select(self.frameElement).style("width", "1200px");
d3.select(self.frameElement).style("height", "700px");
</script>
    