Excercise module 4

<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="utf-8">
		<title>Creating SVG Elements from Data</title>
		<script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
		<style type="text/css">
			
			body {
				background-color: white;
			}
            
            h1 {
                font-size: 24px;
                margin: 0;
            }
            
            p {
                font-size: 14px;
                margin: 10 px 0 0 0;
            }

svg {
				background-color: white;
			}
            
            rect:hover {
                fill: orange;
            }
            
            .axis path,
            .axis line {
                fill: none;
                stroke: grey;
                shape-rendering: crispEdges;
            }
            
            .axis text{
                fill: grey;
                font-size: 11px;
                font-family: sans-serif;
            }
            
            .y.axis path,
            .y.axis line {
                opacity: 0;
            }

</style>
	</head>
	<body>        
        <H1>The number of grant applications by year 2011-2014</H1>
        <p>This horizontal bar chart displays the number of grant applications for sports and cultural events received by the Provence of Groningen.</p>
		<script type="text/javascript">

var w = 400;           
            var h = 150;          
            var padding = [20, 10, 30, 120]; // Top, right, bottom, left
            
            var widthScale = d3.scale.linear().range([0, w - padding[1] - padding [3]]);
            var heightScale = d3.scale.ordinal().rangeRoundBands([padding[0], h - padding[2]], 0.1)
            
            var xAxis = d3.svg.axis().scale(widthScale).orient("bottom");
            var yAxis = d3.svg.axis().scale(heightScale).orient("left");

var svg = d3.select("body")
					 	.append("svg")
					 	.attr("width", w)
					 	.attr("height", h);
          
			d3.csv("evenementen_totalen.csv", function(dataset) {
                
                widthScale.domain([0, d3.max(dataset, function(d){ return +d.aantal_totaal})]);
                
                heightScale.domain(dataset.map(function(d){return d.jaar;}));

svg.selectAll("rect")
					.data(dataset)
					.enter()
					.append("rect")
					.attr({
                        x: padding[3],
				        y: function(d, i){return heightScale(d.jaar);},
                        width: function(d){return widthScale(d.aantal_totaal);},
                        height: function(d){return heightScale.rangeBand()},
                        fill: "darkblue"
                    })
                    .append("title")
					.text(function(d) {
						return d.aantal_totaal + " grant applications in " + d.jaar;
					});
                
                svg.append("g")
                    .attr({
                        class: "x axis",
                        transform: "translate(" + padding[3] + ","+ (h - padding[2]) + ")"
                    })        
                    .call(xAxis);
                
                svg.append("g")
                    .attr({
                        class: "y axis",
                        transform: "translate(" + (padding[3] - 1) + ",0)"
                    })        
                    .call(yAxis);
               
			});

</script>

</body>
</html>

Modified http://d3js.org/d3.v3.js to a secure url

https://d3js.org/d3.v3.js