141 lines
4.6 KiB
HTML
Generated
141 lines
4.6 KiB
HTML
Generated
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<!--
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Licensed to the Apache Software Foundation (ASF) under one
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or more contributor license agreements. See the NOTICE file
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distributed with this work for additional information
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regarding copyright ownership. The ASF licenses this file
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to you under the Apache License, Version 2.0 (the
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"License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing,
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software distributed under the License is distributed on an
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"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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KIND, either express or implied. See the License for the
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specific language governing permissions and limitations
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under the License.
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-->
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<html>
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<head>
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<meta charset='utf-8'>
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<script src='../dist/echarts.js'></script>
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<script src="../../echarts-gl/dist/echarts-gl.js"></script>
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<!-- <script src="https://fastly.jsdelivr.net/npm/echarts-gl@2/dist/echarts-gl.min.js"></script> -->
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<script src='./data/map/js/world.js'></script>
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<meta name='viewport' content='width=device-width, initial-scale=1' />
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</head>
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<body>
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<style>
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html, body, #main {
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width: 100%;
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height: 100%;
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margin: 0;
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}
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</style>
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<div id='main'></div>
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<script>
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var CHUNK_COUNT = 32;
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var dataCount = 0;
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var chart = echarts.init(document.getElementById('main'));
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setOption();
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fetchData(0)
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function fetchData(idx) {
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if (idx >= CHUNK_COUNT) {
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return;
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}
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var dataURL = `../../echarts-examples/public/data/asset/data/links-ny/links_ny_${idx}.bin`;
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// var dataURL = `https://fastly.jsdelivr.net/gh/apache/echarts-website@asf-site/examples/data/asset/data/links-ny/links_ny_${idx}.bin`;
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var xhr = new XMLHttpRequest();
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xhr.open('GET', dataURL, true);
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xhr.responseType = 'arraybuffer';
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xhr.onload = function (e) {
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var rawData = new Float32Array(this.response);
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var data = new Float64Array(rawData.length - 2);
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var offsetX = rawData[0];
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var offsetY = rawData[1];
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var off = 0;
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var addedDataCount = 0;
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for (var i = 2; i < rawData.length;) {
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var count = rawData[i++];
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data[off++] = count;
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for (var k = 0; k < count; k++) {
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var x = rawData[i++] + offsetX;
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var y = rawData[i++] + offsetY;
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data[off++] = x;
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data[off++] = y;
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addedDataCount++;
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}
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}
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// setOption(data);
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chart.appendData({
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seriesIndex: 0,
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data: data
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});
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dataCount += addedDataCount;
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fetchData(idx + 1);
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}
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xhr.send();
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}
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function setOption() {
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var option = {
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progressive: 20000,
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backgroundColor: '#111',
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geo: {
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center: [-74.04327099998152, 40.86737600240287],
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zoom: 360,
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map: 'world',
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roam: true,
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silent: true,
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itemStyle: {
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normal: {
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color: 'transparent',
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borderColor: 'rgba(255,255,255,0.1)',
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borderWidth: 1
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}
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}
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},
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series: [{
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type: 'linesGL',
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coordinateSystem: 'geo',
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blendMode: 'lighter',
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dimensions: ['value'],
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data: new Float32Array(),
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polyline: true,
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large: true,
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lineStyle: {
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color: 'orange',
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width: 0.5,
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opacity: 0.3
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}
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}]
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};
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chart.setOption(option);
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}
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</script>
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</body>
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</html>
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