denisemauldin/.block

## .block
license: mit

## readme-world-110m.json

      
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## README.md

      
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              README.md
            
          
    forked from JulienAssouline's block: World tour d3 v4

  
## index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>

.country {
  fill: #b8b8b8;
  stroke: #fff;
  stroke-width: .5px;
  stroke-linejoin: round;
}

.graticule {
  fill: none;
  stroke: #000;
  stroke-opacity: .3;
  stroke-width: .5px;
}

.graticule-outline {
  fill: none;
  stroke: #333;
  stroke-width: 1.5px;
}

text {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 18px;
  font-weight: bold;
  text-anchor: middle;
  z-index: 100;
}

</style>
<body>
    <script src="https://d3js.org/d3.v4.min.js"></script>
<script src="http://d3js.org/topojson.v0.min.js"></script>
<script>

var width = 960,
    height = 500;


var projection = d3.geoOrthographic()
    .scale(248)
    .clipAngle(90);

var path = d3.geoPath(projection);

var graticule = d3.geoGraticule()
     .extent([[-180, -90], [180 - .1, 90 - .1]]);

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

var line = svg.append("path")
    .datum(graticule)
    .attr("class", "graticule")
    .attr("d", path);

svg.append("circle")
    .attr("class", "graticule-outline")
    .attr("cx", width / 2)
    .attr("cy", height / 2)
    .attr("r", projection.scale());


d3.json("readme-world-110m.json", function(error, world) {
  var countries = topojson.object(world, world.objects.countries).geometries,
      i = -1,
      n = countries.length;

  var country = svg.selectAll(".country")
      .data(countries)
    .enter().insert("path", ".graticule")
      .attr("class", "country")
      .attr("d", path);

  var title = svg.append("text")
    .attr("x", width / 2)
    .attr("y", height * 3 / 5);

  step();

  function step() {
    if (++i >= n) i = 0;

    title.text(countries[i].id);
    country.transition()
        .style("fill", function(d, j) { return j === i ? "red" : "#b8b8b8"; });

    d3.transition()
        .delay(250)
        .duration(1250)
        .tween("rotate", function() {
          var point = d3.geoCentroid(countries[i]),
              rotate = d3.interpolate(projection.rotate(), [-point[0], -point[1]]);

          return function(t) {
            projection.rotate(rotate(t));
            line.attr("d", path);
            country.attr("d", path);
          };
        })
      .transition()
       .on("end", step);
  }
});

</script>
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>

	.country {
	fill: #b8b8b8;
	stroke: #fff;
	stroke-width: .5px;
	stroke-linejoin: round;
	}

	.graticule {
	fill: none;
	stroke: #000;
	stroke-opacity: .3;
	stroke-width: .5px;
	}

	.graticule-outline {
	fill: none;
	stroke: #333;
	stroke-width: 1.5px;
	}

	text {
	font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
	font-size: 18px;
	font-weight: bold;
	text-anchor: middle;
	z-index: 100;
	}

	</style>
	<body>
	<script src="https://d3js.org/d3.v4.min.js"></script>
	<script src="http://d3js.org/topojson.v0.min.js"></script>
	<script>

	var width = 960,
	height = 500;



	var projection = d3.geoOrthographic()
	.scale(248)
	.clipAngle(90);

	var path = d3.geoPath(projection);

	var graticule = d3.geoGraticule()
	.extent([[-180, -90], [180 - .1, 90 - .1]]);

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

	var line = svg.append("path")
	.datum(graticule)
	.attr("class", "graticule")
	.attr("d", path);

	svg.append("circle")
	.attr("class", "graticule-outline")
	.attr("cx", width / 2)
	.attr("cy", height / 2)
	.attr("r", projection.scale());



	d3.json("readme-world-110m.json", function(error, world) {
	var countries = topojson.object(world, world.objects.countries).geometries,
	i = -1,
	n = countries.length;

	var country = svg.selectAll(".country")
	.data(countries)
	.enter().insert("path", ".graticule")
	.attr("class", "country")
	.attr("d", path);

	var title = svg.append("text")
	.attr("x", width / 2)
	.attr("y", height * 3 / 5);

	step();

	function step() {
	if (++i >= n) i = 0;

	title.text(countries[i].id);
	country.transition()
	.style("fill", function(d, j) { return j === i ? "red" : "#b8b8b8"; });

	d3.transition()
	.delay(250)
	.duration(1250)
	.tween("rotate", function() {
	var point = d3.geoCentroid(countries[i]),
	rotate = d3.interpolate(projection.rotate(), [-point[0], -point[1]]);

	return function(t) {
	projection.rotate(rotate(t));
	line.attr("d", path);
	country.attr("d", path);
	};
	})
	.transition()
	.on("end", step);
	}
	});

	</script>