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我在React中使用Dygraph有很多麻煩(我正在使用redux):http://dygraphs.com/。 NPM上的Dygraph包裝程序包似乎不起作用。使用Dygraph與Rex進行反應?
我也不能簡單地用:
<div id="graph"></div>.
我相信這是因爲在反應你的工作的狀態,而不是實際的index.html文件。
所以我目前正試圖使用的方法是創建圖形組件:
import React, { Component } from 'react';
import Dygraph from 'dygraphs';
import myData from '../../mockdata/sample-data.json';
import 'dygraphs/dist/dygraph.min.css'
import './graphComponent.css';
class DyGraph extends Component {
constructor(props) {
super(props);
// mock json data for graph
const messages = myData;
var data = "";
messages.forEach((response) => {
data += response[0] + ',' + response[1] + "\n";
});
new Dygraph('graphContainer', data, {
title: 'Pressure Transient(s)',
titleHeight: 32,
ylabel: 'Pressure (meters)',
xlabel: 'Time',
gridLineWidth: '0.1',
width: 700,
height: 300,
connectSeparatedPoints: true,
axes: { "x": { "axisLabelFontSize": 9 }, "y": { "axisLabelFontSize": 9 } },
labels: ['Date', 'Tampines Ave10 (Stn 40)'],
});
}
render() {
return <div></div>
}
}
export default DyGraph;
,然後將其導入:
import React, { Component } from 'react';
import DyGraph from './components/graph/graphComponent';
import './App.css';
class DeviceDetails extends Component {
render() {
return (
<div >
<DyGraph />
</div>
);
}
}
export default DeviceDetails;
而且還有一個顯示狀態,如果你點擊它會去的地方:
import React, { PropTypes } from 'react'
import { connect } from 'react-redux'
import WarningView from '../warning/warningView'
import DirectoryView from '../directory/directoryView'
import DeviceDetailView from '../devicedetails/devicedetails'
export const Display = ({ currentPage }) => {
switch(currentPage) {
case 'WARNING_PAGE':
return <WarningView/>;
case 'DIRECTORY_PAGE':
return <DirectoryView/>;
case 'SENSOR_PAGE':
return <DeviceDetailView/>;
default:
return <WarningView/>;
}
};
Display.propTypes = {
currentPage: PropTypes.string.isRequired,
};
export default connect(
(state) => ({ currentPage: state.currentPage }),
(dispatch) => ({ })
)(Display)
當我在本地構建和運行這個時,我在CONSOL中得到一個錯誤E(當我嘗試看看圖):
Uncaught (in promise) Error: Constructing dygraph with a non-existent div!
at Dygraph.__init__ (dygraph.js:217)
at new Dygraph (dygraph.js:162)
at new DyGraph (graphComponent.js:19)
at ReactCompositeComponent.js:295
at measureLifeCyclePerf (ReactCompositeComponent.js:75)
at ReactCompositeComponentWrapper._constructComponentWithoutOwner (ReactCompositeComponent.js:294)
at ReactCompositeComponentWrapper._constructComponent (ReactCompositeComponent.js:280)
at ReactCompositeComponentWrapper.mountComponent (ReactCompositeComponent.js:188)
at Object.mountComponent (ReactReconciler.js:46)
at ReactDOMComponent.mountChildren (ReactMultiChild.js:238)
如果任何人都可以找出發生了什麼事,甚至給我,會是SOOO欣賞的提示。我特別想使用dygraph而不是谷歌圖表或其他反應圖表(我已經非常輕鬆地工作),但是,關於在React中實施dygraph的信息很少,我不明白爲什麼它不起作用。