Exercise module 5

<!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;
			}
            
            circle: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;
            }

</style>
	</head>
	<body>        
        <H1>Grant applications</H1>
        <p>This scatter plot displays grant applications for events organized in the Provence of Groningen in the period 2011-2014. On the x axis the grant amount in euro's is displayed and on the y axis the number of people that visited the event.</p>
		<script type="text/javascript">

var w = 500;           
            var h = 400;              
            var padding = [20, 10, 50, 70]; // Top, right, bottom, left
            
            var xScale = d3.scale.linear().range([padding[3], w - padding[1] - padding [3]]);
            var yScale = d3.scale.linear().range([padding[0], h - padding[2]]);
            
            var xAxis = d3.svg.axis().scale(xScale).orient("bottom");
                
            var yAxis = d3.svg.axis().scale(yScale).orient("left");

svg.selectAll("circle")
					.data(dataset)
					.enter()
					.append("circle")
                    .filter(function(d) { return d.verleend_bedrag > 0 }) 
					.attr({
                        cx: function(d) {return xScale(+d.verleend_bedrag);},
				        cy: function(d) {return yScale(+d.aantal_bezoekers);},
                        r: 0.1,
                        fill: "steelblue"
                    })
                    .append("title")
					.text(function(d) {
						return "Aanvraag: " + d.aanvraag + "\nVerleend bedrag: € " + d.verleend_bedrag + "\nAantal bezoekers: " + d.aantal_bezoekers;
					});
                
               svg.selectAll("circle")
                    .sort(function(a, b) {
                        return d3.ascending(+a.verleend_bedrag, +b.verleend_bedrag);
                    })
                    .transition()
                    .delay(function(d, i) {
                        return i * 5;
                    })
                    .duration(2000)
                    .attr("r", 2); 
                
                svg.append("g")
                    .attr("class", "x axis")
                    .attr("transform", "translate(0,"+ (h - padding[2] + 0) + ")")      
                    .call(xAxis)
                    .append("text")
                    .attr("class", "label")
                    .attr("x", w - 80)
                    .attr("y", -6)
                    .style("text-anchor", "end")
                    .text("Verleende subsidie in euro's");
                
                
                svg.append("g")
                    .attr("class", "y axis")
                    .attr("transform", "translate(" + (padding[3] - 0) + ",0)")    
                    .call(yAxis)       
                    .append("text")
                    .attr("class", "label")
                    .attr("transform", "rotate(-90)")
                    .attr("x", -20)
                    .attr("y", 6)
                    .attr("dy", ".71em") 
                    .style("text-anchor", "end")
                    .text("Aantal bezoekers");                               
			});

</script>

</body>
</html>

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

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