ruliana/.block

## .block
license: mit
height: 600

## README.md

      
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              README.md
            
          
    Topojson with brazilian states (estados brasileiros).
Projection is EPSG:4326.
The polygons are simplified, making the file really small.

  
## br-states.json

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

.state {
  fill: #ddc;
  fill-opacity: 0.1;
}

.state_contour {
  fill: none;
  stroke: black;
  stroke-linejoin: round;
}

</style>
<body>
<script src="https://d3js.org/d3.v3.min.js"></script>
<script src="https://d3js.org/d3-queue.v2.min.js"></script>
<script src="https://d3js.org/topojson.v1.min.js"></script>
<script>

// Define map size on screen
var width = 960,
    height = 600;

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

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

var zoom = d3.behavior.zoom()
  .translate([0, 0])
  .scale(1)
  .scaleExtent([1, 8])
  .on("zoom", zoomed);

svg.call(zoom) // delete this line to disable free zooming
  .call(zoom.event);

// Align center of Brazil to center of map
var projection = d3.geo.mercator()
  .scale(650)
  .center([-52, -15])
  .translate([width / 2, height / 2]);

var path = d3.geo.path()
  .projection(projection);

// Load data (asynchronously)
d3_queue.queue()
    .defer(d3.json, "./br-states.json")
    .await(ready);

function ready(error, shp) {
  if (error) throw error;

  // Extracting polygons and contours
  var states = topojson.feature(shp, shp.objects.estados);
  var states_contour = topojson.mesh(shp, shp.objects.estados);

  // Desenhando estados
  g.selectAll(".estado")
      .data(states.features)
    .enter()
      .append("path")
      .attr("class", "state")
      .attr("d", path);

  g.append("path")
    .datum(states_contour)
    .attr("d", path)
    .attr("class", "state_contour");
}

// What to do when zooming
function zoomed() {
  g.style("stroke-width", 1.5 / d3.event.scale + "px");
  g.attr("transform", "translate(" + d3.event.translate + ")scale(" + d3.event.scale + ")");
}
d3.select(self.frameElement).style("height", height + "px");

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

	.state {
	fill: #ddc;
	fill-opacity: 0.1;
	}

	.state_contour {
	fill: none;
	stroke: black;
	stroke-linejoin: round;
	}

	</style>
	<body>
	<script src="https://d3js.org/d3.v3.min.js"></script>
	<script src="https://d3js.org/d3-queue.v2.min.js"></script>
	<script src="https://d3js.org/topojson.v1.min.js"></script>
	<script>

	// Define map size on screen
	var width = 960,
	height = 600;

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

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

	var zoom = d3.behavior.zoom()
	.translate([0, 0])
	.scale(1)
	.scaleExtent([1, 8])
	.on("zoom", zoomed);

	svg.call(zoom) // delete this line to disable free zooming
	.call(zoom.event);

	// Align center of Brazil to center of map
	var projection = d3.geo.mercator()
	.scale(650)
	.center([-52, -15])
	.translate([width / 2, height / 2]);

	var path = d3.geo.path()
	.projection(projection);

	// Load data (asynchronously)
	d3_queue.queue()
	.defer(d3.json, "./br-states.json")
	.await(ready);

	function ready(error, shp) {
	if (error) throw error;

	// Extracting polygons and contours
	var states = topojson.feature(shp, shp.objects.estados);
	var states_contour = topojson.mesh(shp, shp.objects.estados);

	// Desenhando estados
	g.selectAll(".estado")
	.data(states.features)
	.enter()
	.append("path")
	.attr("class", "state")
	.attr("d", path);

	g.append("path")
	.datum(states_contour)
	.attr("d", path)
	.attr("class", "state_contour");
	}

	// What to do when zooming
	function zoomed() {
	g.style("stroke-width", 1.5 / d3.event.scale + "px");
	g.attr("transform", "translate(" + d3.event.translate + ")scale(" + d3.event.scale + ")");
	}
	d3.select(self.frameElement).style("height", height + "px");

	</script>