dsaffo/README.md

## README.md

      
    Raw
  

              README.md
            
          
     VisConnect Mouse Events

    
      This VisConnect example is adapted from
      this block.
      The only changes are adding the PeerJS and VisConnect script tags. Click the visconnect logo on the bottom right and send the coppied URL to a friend. Once they open the link all your interactions will be synchronized! 
        

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

.background {
  fill: none;
  pointer-events: all;
}

#states {
  fill: #aaa;
}

#states .active {
  fill: orange;
}

#state-borders {
  fill: none;
  stroke: #fff;
  stroke-width: 1.5px;
  stroke-linejoin: round;
  stroke-linecap: round;
  pointer-events: none;
}

</style>
<body>


<!-- Load VisConnect and PeerJS-->
<script src="https://unpkg.com/peerjs@1.0.4/dist/peerjs.min.js"></script>
<script src="https://unpkg.com/visconnect@latest/visconnect-bundle.js"></script>
<script src="//d3js.org/d3.v3.min.js"></script>
<script src="//d3js.org/topojson.v1.min.js"></script>
<script>

var width = 960,
    height = 500,
    centered;

var projection = d3.geo.albersUsa()
    .scale(1070)
    .translate([width / 2, height / 2]);

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

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

svg.append("rect")
    .attr("class", "background")
    .attr("width", width)
    .attr("height", height)
    .on("click", clicked);

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

d3.json("us.json", function(error, us) {
  if (error) throw error;

  g.append("g")
      .attr("id", "states")
    .selectAll("path")
      .data(topojson.feature(us, us.objects.states).features)
    .enter().append("path")
      .attr("d", path)
      .on("click", clicked);

  g.append("path")
      .datum(topojson.mesh(us, us.objects.states, function(a, b) { return a !== b; }))
      .attr("id", "state-borders")
      .attr("d", path);
});

function clicked(d) {
  var x, y, k;

  if (d && centered !== d) {
    var centroid = path.centroid(d);
    x = centroid[0];
    y = centroid[1];
    k = 4;
    centered = d;
  } else {
    x = width / 2;
    y = height / 2;
    k = 1;
    centered = null;
  }

  g.selectAll("path")
      .classed("active", centered && function(d) { return d === centered; });

  g.transition()
      .duration(750)
      .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")scale(" + k + ")translate(" + -x + "," + -y + ")")
      .style("stroke-width", 1.5 / k + "px");
}

</script>

## thumbnail.png

      
    Raw
  

              thumbnail.png
            
          
## us.json

      
Display the source blob

    
Display the rendered blob

    
    Raw
  

              us.json
            
          
        Loading

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

	.background {
	fill: none;
	pointer-events: all;
	}

	#states {
	fill: #aaa;
	}

	#states .active {
	fill: orange;
	}

	#state-borders {
	fill: none;
	stroke: #fff;
	stroke-width: 1.5px;
	stroke-linejoin: round;
	stroke-linecap: round;
	pointer-events: none;
	}

	</style>
	<body>


	<!-- Load VisConnect and PeerJS-->
	<script src="https://unpkg.com/peerjs@1.0.4/dist/peerjs.min.js"></script>
	<script src="https://unpkg.com/visconnect@latest/visconnect-bundle.js"></script>
	<script src="//d3js.org/d3.v3.min.js"></script>
	<script src="//d3js.org/topojson.v1.min.js"></script>
	<script>

	var width = 960,
	height = 500,
	centered;

	var projection = d3.geo.albersUsa()
	.scale(1070)
	.translate([width / 2, height / 2]);

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

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

	svg.append("rect")
	.attr("class", "background")
	.attr("width", width)
	.attr("height", height)
	.on("click", clicked);

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

	d3.json("us.json", function(error, us) {
	if (error) throw error;

	g.append("g")
	.attr("id", "states")
	.selectAll("path")
	.data(topojson.feature(us, us.objects.states).features)
	.enter().append("path")
	.attr("d", path)
	.on("click", clicked);

	g.append("path")
	.datum(topojson.mesh(us, us.objects.states, function(a, b) { return a !== b; }))
	.attr("id", "state-borders")
	.attr("d", path);
	});

	function clicked(d) {
	var x, y, k;

	if (d && centered !== d) {
	var centroid = path.centroid(d);
	x = centroid[0];
	y = centroid[1];
	k = 4;
	centered = d;
	} else {
	x = width / 2;
	y = height / 2;
	k = 1;
	centered = null;
	}

	g.selectAll("path")
	.classed("active", centered && function(d) { return d === centered; });

	g.transition()
	.duration(750)
	.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")scale(" + k + ")translate(" + -x + "," + -y + ")")
	.style("stroke-width", 1.5 / k + "px");
	}

	</script>