d3-demos/map-chart.html at master · ederzz/d3-demos · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        svg {
            background-color: rgb(34, 34, 34);
            box-shadow: 0 0 10px 0 rgba(0, 0, 0, .3);
        }

        body {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0;
            margin: 0;
            height: 100vh;
        }
    </style>
</head>

<body>

    <script src="https://d3js.org/d3.v5.min.js"></script>
    <script src="./utils.js"></script>
    <script>
        const width = 600
        const height = 600

        const projection = d3.geoMercator()
            .scale(120)
            .translate([width / 2, height / 2])

        const path = d3.geoPath()
            .projection( projection )

        const zoom = d3.zoom()
            .scaleExtent([1, 8])
            .on('zoom', handleZoom)

        function handleZoom() {
            const {
                transform
            } = d3.event

            svg.attr('transform', transform)
        }

        let svg = d3.select('body')
            .append('svg')
            .call(setAttr, {
                width,
                height
            })
            .call(zoom)
        svg = svg.append('g')

        d3.json('./mock/worldmap.geojson')
            .then(data => {
                svg.append('path')
                    .datum(data)
                    .call(setAttr, {
                        d: path,
                        fill: '#555',
                        stroke: 'rgb(34, 34, 34)'
                    })
            })
    </script>

</body>


</html>