D3 v4 - scatterChart

D3.js ver.4 を使って作成した散布図

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge"/>
<title>D3 v4 - scatterChart</title>
<style>
#graph {
    width: 900px;
    height: 500px;
}
.tick line {
    stroke-dasharray: 2 2 ;
    stroke: #ccc;
}

</style>
</head>

<body>
<div id="graph"></div>    
    
        
<script src="//cdnjs.cloudflare.com/ajax/libs/d3/4.1.1/d3.min.js"></script>    
<script>
!(function(){
    "use strict"

var width,height
    var chartWidth, chartHeight
    var margin
    var svg = d3.select("#graph").append("svg")
    var axisLayer = svg.append("g").classed("axisLayer", true)
    var chartLayer = svg.append("g").classed("chartLayer", true)
    
    var xScale = d3.scaleLinear()
    var yScale = d3.scaleLinear()
    
    var xAxis,yAxis
    
    d3.csv("data.csv", cast,  main)
    
    function cast(d) {
        d.stature = +d.stature
        d.weight = +d.weight
        return d 
    }
    
    function main(data) {
        setSize(data)
        drawAxis()
        drawChart(data)
        animation()
    }
    
    function setSize(data) {
        width = document.querySelector("#graph").clientWidth
        height = document.querySelector("#graph").clientHeight
    
        margin = {top:0, left:80, bottom:40, right:0 }
        
        
        chartWidth = width - (margin.left+margin.right)
        chartHeight = height - (margin.top+margin.bottom)
        
        svg.attr("width", width).attr("height", height)
        
        axisLayer.attr("width", width).attr("height", height)
        
        chartLayer
            .attr("width", chartWidth)
            .attr("height", chartHeight)
            .attr("transform", "translate("+[margin.left, margin.top]+")")

xScale.domain([0, 190]).range([0, chartWidth])
        yScale.domain([0, 90]).range([chartHeight, 0])
            
    }
    
    function drawChart(data) {        
        var point = chartLayer.selectAll(".point").data(data)
        
        point.exit().remove()
        
        point.enter().append("circle").classed("point", true)
            .merge(point)
            .attr("r", 4)
            .attr("transform", function(d){ return "translate("+[xScale(d.stature), yScale(d.weight)]+")"})
            
    }
    
    function drawAxis(){

yAxis = axisLayer.append("g")
            .attr("transform", "translate("+[margin.left, margin.top]+")")
            .attr("class", "axis y")
            .call(d3.axisLeft(yScale).tickSizeInner(-chartWidth))
            
        xAxis = axisLayer.append("g")
            .attr("class", "axis x")
            .attr("transform", "translate("+[margin.left, chartHeight]+")")
            .call(d3.axisBottom(xScale).tickSizeInner(-chartHeight))
   
    }
    
    function animation() {
        if (xScale.domain()[0] == 0 && yScale.domain()[0] == 0){
            xScale.domain([160, 190])
            yScale.domain([50, 90])            
        }else{
            xScale.domain([0, 190])
            yScale.domain([0, 90])            
        }
        
        var t = d3.transition()
            .delay(1000)
            .duration(1600)
            .ease(d3.easeLinear)
            .on("end", animation)
                
        yAxis.transition(t).call(d3.axisLeft(yScale).tickSizeInner(-chartWidth))
        xAxis.transition(t).call(d3.axisBottom(xScale).tickSizeInner(-chartHeight))
        
        chartLayer.selectAll(".point")
            .transition(t)
            .attr("transform", function(d){ return "translate("+[xScale(d.stature), yScale(d.weight)]+")"})
    }
}());
</script>    
</body>
</html>

https://cdnjs.cloudflare.com/ajax/libs/d3/4.1.1/d3.min.js