kachkaev · March 30, 2016 22:58
diff --git a/.block b/.block
 license: gpl-3.0
diff --git a/README.md b/README.md
diff --git a/d3.geo.tile.min.js b/d3.geo.tile.min.js
 d3.geo.tile=function(){function t(){var t=Math.max(Math.log(n)/Math.LN2-8,0),h=Math.round(t+e),o=Math.pow(2,t-h+8),u=[(r[0]-n/2)/o,(r[1]-n/2)/o],l=[],c=d3.range(Math.max(0,Math.floor(-u[0])),Math.max(0,Math.ceil(a[0]/o-u[0]))),M=d3.range(Math.max(0,Math.floor(-u[1])),Math.max(0,Math.ceil(a[1]/o-u[1])));return M.forEach(function(t){c.forEach(function(a){l.push([a,t,h])})}),l.translate=u,l.scale=o,l}var a=[960,500],n=256,r=[a[0]/2,a[1]/2],e=0;return t.size=function(n){return arguments.length?(a=n,t):a},t.scale=function(a){return arguments.length?(n=a,t):n},t.translate=function(a){return arguments.length?(r=a,t):r},t.zoomDelta=function(a){return arguments.length?(e=+a,t):e},t};
diff --git a/index.html b/index.html
 <!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="//d3js.org/d3.v3.min.js"></script>
 <script src="//d3js.org/topojson.v1.min.js"></script>
 <script src="d3.geo.tile.min.js"></script>
 <script>

 var width = Math.max(960, window.innerWidth),
    height = Math.max(500, window.innerHeight);

 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 = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height);

 var raster = svg.append("g");

 var vector = svg.append("path");

 d3.json("/mbostock/raw/4090846/us.json", function(error, us) {
  if (error) throw error;

  svg.call(zoom);
  vector.datum(topojson.mesh(us, us.objects.states));
  zoomed();
 });

 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 "http://" + ["a", "b", "c"][(d[0] + d[1] + d[2]) % 3] + ".tile.openstreetmap.org/" + 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]; });
 }

 </script>
diff --git a/thumbnail.png b/thumbnail.png
	<!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="//d3js.org/d3.v3.min.js"></script>
	<script src="//d3js.org/topojson.v1.min.js"></script>
	<script src="d3.geo.tile.min.js"></script>
	<script>

	var width = Math.max(960, window.innerWidth),
	height = Math.max(500, window.innerHeight);

	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 = d3.select("body").append("svg")
	.attr("width", width)
	.attr("height", height);

	var raster = svg.append("g");

	var vector = svg.append("path");

	d3.json("/mbostock/raw/4090846/us.json", function(error, us) {
	if (error) throw error;

	svg.call(zoom);
	vector.datum(topojson.mesh(us, us.objects.states));
	zoomed();
	});

	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 "http://" + ["a", "b", "c"][(d[0] + d[1] + d[2]) % 3] + ".tile.openstreetmap.org/" + 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]; });
	}

	</script>