D3 Examples - Russian airports 2000-2012 pax line chart

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<!DOCTYPE html>
<html lang="ru">
    <head>
        <meta charset="utf-8">
        <title>D3 Project Template</title>
        <script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
        <link rel="stylesheet" href="style.css">
        <style type="text/css">
        
        body {
            background-color: white;
            font-family: Helvetica, Arial, sans-serif;
        }   
        h1 {
            font-size: 24px;
            margin:0;
        }
​
        p {
            font-size:14px;
            margin:10px 0 0 0 ;
        }
​
        svg {
            background-color: white;
        }
​
        path:hover,
        g.highlight path:hover {
            stroke:orange;
            stroke-width: 2;
        }
        
        text.show
        {
            opacity: 0;
        }
        text.highlight
        {
            opacity:1;
            font-size: 10px;
        }
​
​
        g.highlight path {
            stroke:steelblue;
            stroke-width: 2;
        }
        text {
            font-size:10px;
            font-family: Helvetica, Arial, sans-serif;
        }
        .axis path,
        .axis line {
            fill:none;
            stroke:black;
            shape-rendering: crispEdges;
        }
​
        path {
            stroke:gray;
            stroke-width: 0.5;
        }
​
        
        .axis text {
            font-family: sans-serif;
            font-size: 11px;
        }
/*
        .y.axis path,
        .y.axis line {
            opacity: 0;
        }
*/
        </style>
    </head>
    <body>
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    <h1>Russian airport rankings 2000-2012</h1>
​
        Values - 2012 year total <br>
        Source: <a href="https://ru.wikipedia.org/wiki/%D0%A1%D0%BF%D0%B8%D1%81%D0%BE%D0%BA_%D0%BD%D0%B0%D0%B8%D0%B1%D0%BE%D0%BB%D0%B5%D0%B5_%D0%B7%D0%B0%D0%B3%D1%80%D1%83%D0%B6%D0%B5%D0%BD%D0%BD%D1%8B%D1%85_%D0%B0%D1%8D%D1%80%D0%BE%D0%BF%D0%BE%D1%80%D1%82%D0%BE%D0%B2_%D0%A0%D0%BE%D1%81%D1%81%D0%B8%D0%B8">Wikipedia.org</a></p>
​
        <script type="text/javascript"> 
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​
        var w=620;
        var h=300;
        var padding = [20,120,40,50];
​
        var svg = d3.select("body")
                    .append("svg")
                    .attr("width",w)
                    .attr("height",h);
​
        var xScale = d3.time.scale()
                            .range([padding[3],w - padding[1] - padding[3]]);
        var yScale = d3.scale.linear()
                                .range([padding[0],h - padding[2]]);
​
        var dateFormat = d3.time.format("%Y");
        
        d3.csv("columnised3.csv", function(data) {
​
            // REMOVE SPACES d.v.replace(/\s+/g, '');
​
            /*data.sort(function(a,b) {
                return d3.descending(a.v.replace(/\s+/g, ''),b.v.replace(/\s+/g, ''));
            });
    `       */
            var line = d3.svg.line()
                .x(function(d){
                    return xScale(dateFormat.parse(d.year));
                })
                .y(function(d){
                    return yScale(d.paxtotal);
                });
​
​
            var filtered = data.filter(function(d) {
                    return (d.airport=="Калининград(Храброво)");
                });
​
            var filtered = d3.nest()
                            .key(function(d) {
                                return d.airport;
                            })
                            .entries(data);
​
​
            var dateFormat = d3.time.format("%Y");
​
            xScale.domain([
                d3.min(data, function(d) {
                    return dateFormat.parse(d.year);
                }), 
                d3.max(data, function(d) {
                return dateFormat.parse(d.year);
                })
            ]);
​
​
            yScale.domain([d3.max(filtered,function(d) {
                return d3.max(d.values, function(d) {
                    return +d.paxtotal;
                });
                }),0]);
​
            /*
            */
​
            var xAxis = d3.svg.axis ()
                        .scale(xScale)
                        .orient("bottom")
                        .tickFormat(function(d) {
                            return dateFormat(d);
                        })
                        .ticks(12);
            var yAxis = d3.svg.axis ()
                        .scale(yScale)
                        .orient("left")
                        .tickFormat(function(d) {
                            return d/1000;
                        })
                        .ticks(9);
            
            var groups = svg.selectAll("g")
                .data(filtered)
                .enter()
                .append("g")
                .classed("highlight", function(d) {
                    return (d.key=="Москва(Домодедово)"||d.key=="Екатеринбург(Кольцово)"
                            ||d.key=="Калининград(Храброво)")});
​
            groups.append("title")
                .text(function(d) {
                    return d.key;
                });
            groups.selectAll("path")
                .data(function(d) {
                    return  [d.values];
                })
                .enter()
                .append("path")
                .attr("class","line KGD")
                .attr("d",line)
                .attr("fill","none")
                .attr("stroke","steelblue")
                .attr("stroke-width",2)
            
            var labels = svg.selectAll("text")
                .data(filtered)
                .enter()
                .append("text")
                .attr("y", function(d){
                    return yScale(d3.max(d.values, function(d2) {
                        return +d2.paxtotal;
                    }));
                    
                })
                .attr("x",w-160)
                .text(function(d){
                    return d.key;
                })
                .classed("show",true)
                .classed("highlight", function(d) {
                    return (d.key=="Москва(Домодедово)"||d.key=="Екатеринбург(Кольцово)"
                            ||d.key=="Калининград(Храброво)");
                });
​
​
            svg.append("g")
                .attr("class", "x axis")
                .attr("transform", "translate(0," +(h-padding[2] +10)
                    + ")")
                .call(xAxis);
​
    //Create Y axis 
​
            svg.append("g")
                .attr("class", "y axis")
                .attr("transform", "translate(" + (padding[3]-10)+",0)")
                .call(yAxis);
            
​
                        
​
/*
            circles.sort(function(a,b) {
                        return d3.ascending(+a.paxtotal,+b.paxtotal);
                    })
                    .transition()
                    .delay(function(d,i) {
                        return i*50;
                    })
                    .duration(2000)
                    .attr("r",4)
                    .attr("cx",function(d) {
                                        return xScale(d.paxdom)+padding[1]+padding[3];
                                    })
                    .attr("cy", function(d) {
                                        return yScale(+d.paxint);
                                    })                  ;               
        
*/
        });
        </script>
    </body>
</html>
    