D3_Tutorial_Udemy/charting_ex2.html at master · avimhael/D3_Tutorial_Udemy · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta name="description" content="Drawing Shapes"/>
    <meta charset="utf-8">
    <title>Bar Graph with Labels</title>
    <script src="https://d3js.org/d3.v6.min.js" charset="utf-8"></script>

</head>
<body>

    <script>  //bar chart

        var w = 200;
        var h = 100;
        var padding = 2;
        var dataset = [5,10,15,20,25];
        var svg = d3.select("body").append("svg").attr("width",w).attr("height",h);

        svg.selectAll("rect")
        .data(dataset)
        .enter()
        .append("rect")

        .attr("x",function(d,i){ //i is index of dataset    d is the dataset being passed in
            return (i*(w / dataset.length)); // use dataset and evenly divide out five bars
        })

        .attr("y",function(d){    //coordinate system appears in top left, to make it appear normally subtract data from height
            return h-d*4;
        })

        .attr("width",(w / dataset.length-padding))  // five bars that take up the width of the svg

        .attr("height",function(d){
            return d*4;
        })

        .attr("fill", function(d) {
            return "rgb(" + (d*10) + ", 0, 0)"; //shades of red
        })

        svg.selectAll("text")
        .data(dataset)
        .enter()
        .append("text")
        .text(function(d) {return d;})
        .attr("x", function(d, i) {return i * (w / dataset.length) + (w / dataset.length - padding) / 2;})
        .attr("y", function(d) {return h - (d * 4) + 14;})
        .attr("text-anchor", "middle")
        .attr("font-family", "sans-serif")
        .attr("font-size", "11px")
        .attr("fill", "white")


        </script>
</body>
</html>