phil-pedruco/germany.json

## germany.json

      
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## index.html
<!DOCTYPE html>
<html>
<meta charset="utf-8">
<head>
    <script src="http://d3js.org/d3.v3.min.js"></script>
</head>
<body>
<script type="text/javascript">

var width = 960;
var height = 500;

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

d3.json("germany.json", function(data) {

    //jeder gemeinde ein path
    var group = canvas.selectAll("g")
        .data(data.features)  //array in geojson heißt "features"
        .enter()
        .append("g")
        // now: data is bound


    //earth not flat --> map on flat surface --> projection notwendig
    //standard: mercator

var projection = d3.geo.mercator()
                    .scale(50000)
                    .center([13.439235,48.830666])  // centers map at given coordinates
                    .translate([width / 2, height / 2]); // translate map to svg
    //path generator
    var path = d3.geo.path().projection(projection); //hand projection to projection generator --> how to translate coordinate to pixels


    //append to path to each "g" element
    var areas = group.append("path")
        .attr("d", path) //data comes from path generator
        .attr("class", "area") //CSS
        .attr("fill", "steelblue");

});
</script>
</body>
</html>
	<!DOCTYPE html>
	<html>
	<meta charset="utf-8">
	<head>
	<script src="http://d3js.org/d3.v3.min.js"></script>
	</head>
	<body>
	<script type="text/javascript">

	var width = 960;
	var height = 500;

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

	d3.json("germany.json", function(data) {

	//jeder gemeinde ein path
	var group = canvas.selectAll("g")
	.data(data.features) //array in geojson heißt "features"
	.enter()
	.append("g")
	// now: data is bound


	//earth not flat --> map on flat surface --> projection notwendig
	//standard: mercator

	var projection = d3.geo.mercator()
	.scale(50000)
	.center([13.439235,48.830666]) // centers map at given coordinates
	.translate([width / 2, height / 2]); // translate map to svg
	//path generator
	var path = d3.geo.path().projection(projection); //hand projection to projection generator --> how to translate coordinate to pixels


	//append to path to each "g" element
	var areas = group.append("path")
	.attr("d", path) //data comes from path generator
	.attr("class", "area") //CSS
	.attr("fill", "steelblue");

	});
	</script>
	</body>
	</html>