120 lines
3.5 KiB
Markdown
120 lines
3.5 KiB
Markdown
# [ECharts](https://github.com/ecomfe/echarts) wordcloud extension based on [wordcloud2.js](https://github.com/timdream/wordcloud2.js)
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<a href="http://echarts.baidu.com">
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<img style="vertical-align: top;" src="https://github.com/ecomfe/echarts/raw/master/asset/logo.png?raw=true" alt="logo" height="50px">
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</a>
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## Examples
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[Google Trends](https://ecomfe.github.io/echarts-wordcloud/example/wordCloud.html)
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[ECharts Option Keywords](https://ecomfe.github.io/echarts-wordcloud/example/optionKeywords.html)
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## Install
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```html
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<script src="echarts.min.js"></script>
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<script src="echarts-wordcloud.min.js"></script>
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```
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Or
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```shell
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npm install echarts
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npm install echarts-wordcloud
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```
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```js
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var echarts = require('echarts');
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require('echarts-wordcloud');
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```
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## Usage
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```js
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var chart = echarts.init(document.getElementById('main'));
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chart.setOption({
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...
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series: [{
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type: 'wordCloud',
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// The shape of the "cloud" to draw. Can be any polar equation represented as a
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// callback function, or a keyword present. Available presents are circle (default),
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// cardioid (apple or heart shape curve, the most known polar equation), diamond (
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// alias of square), triangle-forward, triangle, (alias of triangle-upright, pentagon, and star.
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shape: 'circle',
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// A silhouette image which the white area will be excluded from drawing texts.
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// The shape option will continue to apply as the shape of the cloud to grow.
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maskImage: maskImage,
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// Folllowing left/top/width/height/right/bottom are used for positioning the word cloud
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// Default to be put in the center and has 75% x 80% size.
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left: 'center',
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top: 'center',
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width: '70%',
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height: '80%',
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right: null,
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bottom: null,
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// Text size range which the value in data will be mapped to.
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// Default to have minimum 12px and maximum 60px size.
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sizeRange: [12, 60],
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// Text rotation range and step in degree. Text will be rotated randomly in range [-90, 90] by rotationStep 45
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rotationRange: [-90, 90],
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rotationStep: 45,
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// size of the grid in pixels for marking the availability of the canvas
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// the larger the grid size, the bigger the gap between words.
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gridSize: 8,
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// set to true to allow word being draw partly outside of the canvas.
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// Allow word bigger than the size of the canvas to be drawn
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drawOutOfBound: false,
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// Global text style
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textStyle: {
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normal: {
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fontFamily: 'sans-serif',
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fontWeight: 'bold',
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// Color can be a callback function or a color string
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color: function () {
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// Random color
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return 'rgb(' + [
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Math.round(Math.random() * 160),
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Math.round(Math.random() * 160),
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Math.round(Math.random() * 160)
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].join(',') + ')';
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}
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},
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emphasis: {
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shadowBlur: 10,
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shadowColor: '#333'
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}
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},
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// Data is an array. Each array item must have name and value property.
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data: [{
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name: 'Farrah Abraham',
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value: 366,
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// Style of single text
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textStyle: {
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normal: {},
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emphasis: {}
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}
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}]
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}]
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});
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```
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