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Top 10 Examples of "mapv in functional component" in JavaScript

Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'mapv' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.

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"];
        // 构造数据
        while (randomCount--) {
            var cityCenter1 = utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length)]);
            var cityCenter2 = utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length)]);
            data.push({
                geometry: {
                    type: 'LineString',
                    coordinates: [[cityCenter1.lng - 1 + Math.random() * 1, cityCenter1.lat - 1 + Math.random() * 1],
                        [cityCenter2.lng - 1 + Math.random() * 1, cityCenter2.lat - 1 + Math.random() * 1]
                    ]
                },
                count: 30 * Math.random()
            });
        }
        dataSet = new DataSet(data);

        if (!map.getLayer("mapv")) {
            mapvLayer = new MapvLayer(map, dataSet, options);
        }
    });
    afterEach(() => {
"source": "raster-tiles",
                    "minzoom": 0,
                    "maxzoom": 22
                }]
            },
            center: [112, 37.94],
            zoom: 3
        });
        originalTimeout = jasmine.DEFAULT_TIMEOUT_INTERVAL;
        jasmine.DEFAULT_TIMEOUT_INTERVAL = 50000;
        var randomCount = 1;
        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"];
        // 构造数据
        while (randomCount--) {
            var cityCenter1 = utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length)]);
            var cityCenter2 = utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length)]);
            data.push({
                geometry: {
                    type: 'LineString',
                    coordinates: [[cityCenter1.lng - 1 + Math.random() * 1, cityCenter1.lat - 1 + Math.random() * 1],
                    [cityCenter2.lng - 1 + Math.random() * 1, cityCenter2.lat - 1 + Math.random() * 1]
                    ]
                },
                count: 30 * Math.random()
            });
        }
        dataSet = new DataSet(data);

        if (!map.getLayer("mapv")) {
            mapvLayer = new MapvLayer(map, dataSet, options);
            map.addLayer(mapvLayer);
            mapvLayer = map.getLayer('mapv');
beforeEach(() => {
        originalTimeout = jasmine.DEFAULT_TIMEOUT_INTERVAL;
        jasmine.DEFAULT_TIMEOUT_INTERVAL = 50000;
        var randomCount = 1000;
        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"];
        // 构造数据
        while (randomCount--) {
            var cityCenter1 = utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length)]);
            var cityCenter2 = utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length)]);
            data.push({
                geometry: {
                    type: 'LineString',
                    coordinates: [[cityCenter1.lng - 1 + Math.random() * 1, cityCenter1.lat - 1 + Math.random() * 1],
                        [cityCenter2.lng - 1 + Math.random() * 1, cityCenter2.lat - 1 + Math.random() * 1]
                    ]
                },
                count: 30 * Math.random()
            });
        }
        dataSet = new DataSet(data);

        if (!map.getLayer("mapv")) {
            mapvLayer = new MapvLayer(map, dataSet, options);
        }
    });
testDiv.style.styleFloat = "left";
        testDiv.style.marginLeft = "8px";
        testDiv.style.marginTop = "50px";
        testDiv.style.width = "500px";
        testDiv.style.height = "500px";
        document.body.appendChild(testDiv);
        map = L.map('map1', {
            center: [32, 109],
            zoom: 4,
        });
        var randomCount = 2;
        var data = [];
        var citys = ["北京", "天津"];
        // 构造数据
        while (randomCount--) {
            var cityCenter = utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length)]);
            data.push({
                geometry: {
                    type: 'Point',
                    coordinates: [cityCenter.lng - 2 + Math.random() * 4, cityCenter.lat - 2 + Math.random() * 4]
                },
                count: 30 * Math.random()
            });
        }
        var dataSet = new DataSet(data);
        var options = {
            fillStyle: 'rgba(55, 50, 250, 0.8)',
            shadowColor: 'rgba(255, 250, 50, 1)',
            shadowBlur: 20,
            max: 100,
            size: 50,
            label: {
beforeEach(() => {
        //创建mapVLayer
        var randomCount = 1000;
        var data = [];
        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"];
        // 构造数据
        while (randomCount--) {
            var cityCenter = utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length)]);
            data.push({
                geometry: {
                    type: 'Point',
                    coordinates: [cityCenter.lng - 2 + Math.random() * 4, cityCenter.lat - 2 + Math.random() * 4]
                },
                count: 30 * Math.random()
            });
        }
        var dataSet = new DataSet(data);
        var options = {
            fillStyle: 'rgba(55, 50, 250, 0.8)',
            shadowColor: 'rgba(255, 250, 50, 1)',
            shadowBlur: 20,
            max: 100,
            size: 500,
            unit: 'm',
beforeEach(() => {
        originalTimeout = jasmine.DEFAULT_TIMEOUT_INTERVAL;
        jasmine.DEFAULT_TIMEOUT_INTERVAL = 50000;
        var randomCount = 1000;
        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"];
        // 构造数据
        while (randomCount--) {
            var cityCenter1 = utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length)]);
            var cityCenter2 = utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length)]);
            data.push({
                geometry: {
                    type: 'LineString',
                    coordinates: [[cityCenter1.lng - 1 + Math.random() * 1, cityCenter1.lat - 1 + Math.random() * 1],
                        [cityCenter2.lng - 1 + Math.random() * 1, cityCenter2.lat - 1 + Math.random() * 1]
                    ]
                },
                count: 30 * Math.random()
            });
        }
        dataSet = new DataSet(data);

        if (!map.getLayer("mapv")) {
            mapvLayer = new MapvLayer(map, dataSet, options);
        }
beforeEach(() => {
        originalTimeout = jasmine.DEFAULT_TIMEOUT_INTERVAL;
        jasmine.DEFAULT_TIMEOUT_INTERVAL = 50000;

        let randomCount = 300;
        let data = [];
        const 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"];
        // 构造数据
        while (randomCount--) {
            var cityCenter = utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length)]);
            data.push({
                geometry: {
                    type: 'Point',
                    coordinates: olProj.transform([cityCenter.lng - 2 + Math.random() * 4, cityCenter.lat - 2 + Math.random() * 4], 'EPSG:4326', 'EPSG:3857')
                },
                count: 30 * Math.random()
            });
        }
        const dataSet = new DataSet(data);

        const options = {
            map: map, dataSet: dataSet, mapvOptions: mapvOptions
        };

        mapVSource = new Mapv(options);
        mapVLayer = new ImageLayer({
});
    // }
}
// console.log(JSON.stringify(data))
datas.push({
    id: 1,
    name: '示例点数据',
    data
});

// line data
// randomCount = 1000;
randomCount = 300;
data = [];
while (randomCount--) {
    var cityCenter1 = mapv.utilCityCenter.getCenterByCityName(
        citys[parseInt(Math.random() * citys.length)]
    );
    var cityCenter2 = mapv.utilCityCenter.getCenterByCityName(
        citys[parseInt(Math.random() * citys.length)]
    );
    data.push({
        geometry: {
            type: 'LineString',
            coordinates: [
                [
                    cityCenter1.lng - 1 + Math.random() * 1,
                    cityCenter1.lat - 1 + Math.random() * 1
                ],
                [
                    cityCenter2.lng - 1 + Math.random() * 1,
                    cityCenter2.lat - 1 + Math.random() * 1
// console.log(JSON.stringify(data))
datas.push({
    id: 1,
    name: '示例点数据',
    data
});

// line data
// randomCount = 1000;
randomCount = 300;
data = [];
while (randomCount--) {
    var cityCenter1 = mapv.utilCityCenter.getCenterByCityName(
        citys[parseInt(Math.random() * citys.length)]
    );
    var cityCenter2 = mapv.utilCityCenter.getCenterByCityName(
        citys[parseInt(Math.random() * citys.length)]
    );
    data.push({
        geometry: {
            type: 'LineString',
            coordinates: [
                [
                    cityCenter1.lng - 1 + Math.random() * 1,
                    cityCenter1.lat - 1 + Math.random() * 1
                ],
                [
                    cityCenter2.lng - 1 + Math.random() * 1,
                    cityCenter2.lat - 1 + Math.random() * 1
                ]
            ]
        },
refresh: function () {
        var mapvOptions = this.model.get('map_v_options')
        mapvOptions.size = this.model.get('size');
        mapvOptions.globalAlpha = this.model.get('global_alpha');
        mapvOptions.fillStyle = this.model.get('fill_style');
        mapvOptions.shadowColor = this.model.get('shadow_color');
        mapvOptions.shadowBlur = this.model.get('shadow_blur');
        // mapvOptions.lineWidth = this.model.get('line_width');
        var dataSet = this.model.get('data_set');
        var mapvDataSet = new mapv.DataSet(dataSet);
        this.obj.update({data: mapvDataSet, options: mapvOptions})
    },

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