如何弱化绑定边的效果

来源:7-13 百度地图可视化之炫酷飞线动画(下)

zengxing358

2020-11-24

如果想在小范围内使用绑定边的话,好像就挤到一坨去了,可以通过设置参数解决这个问题吗?图片描述

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        var fbundling = mapv.utilForceEdgeBundling()
                        .nodes(node_data)
                        .edges(edge_data);

        var results = fbundling();  

        var data = [];
        var timeData = [];
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        for (var i = 0; i < results.length; i++) {
            var line = results[i];
            var coordinates = [];
            for (var j = 0; j < line.length; j++) {
                coordinates.push([line[j].x, line[j].y]);
                timeData.push({
                    geometry: {
                        type: 'Point',
                        coordinates: [line[j].x, line[j].y]
                    },
                    count: cnums[i],
                    time: j
                });
            }
            data.push({
                geometry: {
                    type: 'LineString',
                    coordinates: coordinates
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            });
        }

        var dataSet = new mapv.DataSet(data);

        var options = {
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            globalCompositeOperation: 'lighter',
            shadowColor: 'rgba(55, 50, 250, 0.5)',
            shadowBlur: 10,
            methods: {
                click: function (item) {
                }
            },
            lineWidth: 1.0,
            draw: 'simple'
        }

        var mapvLayer = new mapv.baiduMapLayer(map, dataSet, options);
        var dataSet = new mapv.DataSet(timeData);
        var options = {
					fillStyle: 'rgba(255, 250, 250, 0.9)',
					globalCompositeOperation: 'lighter',
					size: 1.5,
					animation: {
							type: 'time',
							stepsRange: {
									start: 0,
									end: 100
							},
							trails: 1,
							duration: 5,
					},
					draw: 'simple'
        }
        var mapvLayer = new mapv.baiduMapLayer(map, dataSet, options);
    </script>

</body>
</html>
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2回答

扬_灵

2020-11-25

同学你好,你可以参考一下G6中关于边绑定算法的使用,里面提供了通过属性调节的方式或者你也可以设计自己的渲染算法,https://juejin.cn/post/6844904006679052302#heading-5 //img.mukewang.com/szimg/5fbe25c609ddcd6513880548.jpg

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zengxing358
非常感谢!
2020-11-25
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扬_灵

2020-11-25

同学你好,可以把代码发一下吗

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zengxing358
嗯嗯,老师,我已经把代码放问题里了,数据有删减,效果不是一模一样,但也差不太多。麻烦您看看,谢谢啦
2020-11-25
共1条回复

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