test/lines-stream-large.html

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<html>
    <head>
        <meta charset='utf-8'>
        <script src='lib/simpleRequire.js'></script>
        <script src='lib/config.js'></script>
        <script src='lib/jquery.min.js'></script>
        <script src='lib/testHelper.js'></script>
        <link rel="stylesheet" href="lib/reset.css" />
        <meta name='viewport' content='width=device-width, initial-scale=1' />
    </head>
    <body>
        <style>
            html, body, #main0 {
                width: 100%;
                height: 100%;
                margin: 0;
            }
        </style>
        <div id='main0'></div>
        <script>

        var xs = [440000, 450000];
        var ys = [4368000, 4537000];

        require([
            'echarts',
            './data/map/json/world.json'
        ], function (echarts, worldJson) {
            echarts.registerMap('world', worldJson);

            var linesCount = 35663;
            var chart;

            var routes = [];

            var lngStep = 0.01;
            var lng0 = -160;
            var lng1 = lng0 + linesCount * lngStep;

            for (var i = 0; i < linesCount; i++) {
                var lng = lng0 + i * lngStep;
                var lat0 = 0;
                var lat1 = 90;

                // if (i % 1000 < 500) {
                //     lat0 = 30;
                //     lat1 = 120;
                // }
                routes.push([[lng, lat0], [lng, lat1]]);
            }

            var option = {
                title: {
                    text: 'World Flights',
                    left: 'center',
                    textStyle: {
                        color: '#eee'
                    }
                },
                backgroundColor: '#003',
                tooltip: {
                    formatter: function (param) {
                        return 'Line: ' + param.dataIndex;
                    }
                },
                geo: {
                    map: 'world',
                    left: 0,
                    right: 0,
                    zoom: 0.3,
                    roam: true,
                    silent: true,
                    itemStyle: {
                        normal: {
                            borderColor: '#003',
                            color: '#005'
                        }
                    }
                },
                series: [{
                    type: 'lines',
                    coordinateSystem: 'geo',
                    blendModel: 'lighter',
                    data: routes,
                    large: true,
                    // large: false,
                    largeThreshold: 0,
                    // progressive: 5e3,
                    progressiveThreshold: 101,
                    lineStyle: {
                        normal: {
                            opacity: 1,
                            width: 1,
                            // curveness: 0.3
                        }
                    },
                    // blendMode: 'lighter'
                }, {
                    type: 'scatter',
                    coordinateSystem: 'geo',
                    symbolSize: 5,
                    color: ['green'],
                    data: [
                        {
                            value: [lng0, 30],
                            label: {
                                show: true,
                                position: 'top',
                                formatter: 'longitude start'
                            }
                        }, {
                            value: [lng1, 30],
                            label: {
                                show: true,
                                position: 'top',
                                formatter: 'longitude end'
                            }
                        }
                    ]
                }]
            };

            var chart = testHelper.create(echarts, 'main0', {
                title: [
                    linesCount + ' lines should be rendered vertically side by side ',
                    'from the left green point to the right green point, NO GAP.',
                    '( large:true and el.incremetal = true) ',
                    'And check roam.'
                ],
                option: option,
                height: 550
            });
            chart.on('finished', function () {
                console.log('finished');
            });

        });

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