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7-14 百度地图可视化之3D建筑.html

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

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        html,
        body {
            width: 100%;
            height: 100%;
            margin: 0;
            padding: 0;
        }

        #map_container {
            width: 100%;
            height: 100%;
            margin: 0;
        }
    </style>
</head>

<body>
    <script type="text/javascript"
        src="https://api.map.baidu.com/api?type=webgl&v=1.0&ak=4aW5DfpefWI3ozGKjsiTqs3R9yYyupmb"></script>
    <script src="https://mapv.baidu.com/gl/examples/static/common.js"></script>
    <script src="https://mapv.baidu.com/build/mapv.js"></script>
    <script src="https://code.bdstatic.com/npm/mapvgl@1.0.0-beta.54/dist/mapvgl.min.js"></script>
    <script src="https://unpkg.com/mapvgl/dist/mapvgl.threelayers.min.js"></script>
    <div id="map_container"></div>
    <script>
        var map = initBmap()
        var data = initData()
        setData(data, map)
        // 初始化百度地图
        function initBmap() {
            var cityCenter = mapv.utilCityCenter.getCenterByCityName('广州')
            var map = new initMap({
                tilt: 0,
                heading: 0,
                center: [cityCenter.lng, cityCenter.lat],
                zoom: 5,
                style: purpleStyle
            })
            return map
        }
        // 准备数据源
        function initData() {
            var curve = new mapvgl.BezierCurve()
            var citys = [
                '北京', '天津', '上海', '重庆', '石家庄', '太原', '呼和浩特', '哈尔滨', '长春',
                '沈阳', '济南', '南京', '合肥', '杭州', '南昌', '福州', '郑州', '武汉', '长沙', '广州',
                '南宁', '西安', '银川', '兰州', '西宁', '乌鲁木齐', '成都', '贵阳', '昆明', '拉萨', '海口'
            ]
            var targetCity = mapv.utilCityCenter.getCenterByCityName('北京')
            // 边绑定算法
            var nodeData = []
            var edgeData = [{
                source: 0, // 起点 0 表示nodeData 第0号元素
                target: 0  // 目标点 0 表示nodeData 第0号元素
            }] // 边的关系
            var randomCount = 500
            for (var i = 0; i < randomCount; i++) {
                var startCity = mapv.utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length)])
                nodeData.push({ // 插入点
                    x: startCity.lng,
                    y: startCity.lat
                })
                edgeData.push({ // 插入边
                    source: i + 1
                })
            }
            // 边绑定
            var fbundling = mapv.utilForceEdgeBundling().nodes(nodeData).edges(edgeData)
            var results = fbundling()
            for (let i = 0; i < results.length; i++) {
                var line = results[i]
                var coordinates = []
                for (let j = 0; j < line.length; j++) {
                    coordinates.push([line[j].x, line[j].y])
                }
            }
            console.log(results);
            return data
        }

        // 绘制数据源
        function setData(data, map) {
            var view = new mapvgl.View({ map })
            var lineLayer = new mapvgl.FlyLineLayer({
                blend: 'lighter',
                width: 5,
                color: 'rgba(255, 71, 26, 0.8)'
            })
            view.addLayer(lineLayer)
            lineLayer.setData(data)
            var linePointLayer = new mapvgl.LinePointLayer({
                size: 9, // 点大小
                speed: 209, // 点的运动速度
                color: 'rgba(255, 255, 0, 0.6)', // 点的颜色
                animationType: mapvgl.LinePointLayer.ANIMATION_TYPE_UNIFORM_SPEED, // 点的动画类型
                shapeType: mapvgl.LinePointLayer.SHAPE_TYPE_CIRCLE, // 点的形状
                blend: 'lighter' // 点的交汇时处理方式
            });
            view.addLayer(linePointLayer)
            linePointLayer.setData(data)
        }
    </script>
</body>

</html>