javascript-将可编辑文本框添加到图表中的特定数据点
作者：互联网
我正在尝试实现可编辑的文本框(Chartjs或Fusion Chart中的解决方案都可以).在Fusioncharts中进行了一些尝试,以使用触发器捕获数据点上的用户单击事件.在此处检查来自Fusionchart示例的jsfiddle … [dataPlotClick] 1事件.但是,目标是将外部文本框显示为模式形式或其他形式,记录用户注释,然后将其存储在mysql数据库中.最后,使用新注释更新工具提示以重新加载图表数据.任何输入都是有帮助的.以下是我所拥有的.
<html>
<head>
<title>My first chart using FusionCharts Suite XT</title>
<script type="text/javascript" src="http://static.fusioncharts.com/code/latest/fusioncharts.js"></script>
<script type="text/javascript" src="http://static.fusioncharts.com/code/latest/themes/fusioncharts.theme.fint.js?cacheBust=56"></script>
<script type="text/javascript">
FusionCharts.ready(function(){
var fusioncharts = new FusionCharts({
type: 'msline',
renderAt: 'chart-container',
width: '500',
height: '300',
dataFormat: 'json',
dataSource: {
"chart": {
"paletteColors": "#0075c2,#1aaf5d",
"bgcolor": "#ffffff",
"showBorder": "0",
"showShadow": "0",
"showCanvasBorder": "0",
"usePlotGradientColor": "0",
"legendBorderAlpha": "0",
"legendShadow": "0",
"showAxisLines": "0",
"showAlternateHGridColor": "0",
"divlineThickness": "1",
"divLineIsDashed": "1",
"divLineDashLen": "1",
"divLineGapLen": "1",
"xAxisName": "Day",
"showValues": "0"
},
"categories": [{
"category": [{
"label": "1"
}, {
"label": "2"
}, {
"label": "3"
}, {
"label": "4"
}]
}],
"dataset": [{
"seriesname": "Bakersfield Central",
"data": [{
"value": "30",
"toolText" : 'this value is 30'
}, {
"value": "25",
"toolText" : 'below expectation',
}, {
"value": "30",
"toolText" : 'this value expected'
}, {
"value": "35",
"toolText" : 'exceeds'
}]
}],
"trendlines": [{
"line": [{
"startvalue": "30",
"color": "#6baa01",
"valueOnRight": "1",
"displayvalue": "Average"
}]
}]},
"events": {
"dataPlotClick": function (eventObj, dataObj) {
console.log(dataObj);
var data_index = dataObj['dataIndex'];
var tool_text = dataObj['toolText'];
alert(data_index);
alert(tool_text);
}
}
}).render();
});
</script>
</head>
<body>
<div id="chart-container">FusionCharts XT will load here!</div>
</body>
</html>
解决方法:
您可以使用getJSONData和setJSONData来获取和设置数据.在每个dataPlotClick事件上,您首先要获取整个数据.附加/修改它,说出它的工具文本值,并使用setJSONData方法更新图表.
请参考以下代码片段或fiddle：
FusionCharts.ready(function() {
var revenueChart = new FusionCharts({
type: 'column2d',
renderAt: 'chart-container',
width: '500',
height: '350',
dataFormat: 'json',
dataSource: {
"chart": {
"caption": "Monthly revenue for last year",
"subCaption": "Harry's SuperMart",
"xAxisName": "Month",
"yAxisName": "Revenue (In USD)",
"numberPrefix": "$",
"paletteColors": "#0075c2",
"bgColor": "#ffffff",
"borderAlpha": "20",
"canvasBorderAlpha": "0",
"usePlotGradientColor": "0",
"plotBorderAlpha": "10",
"placevaluesInside": "1",
"rotatevalues": "1",
"valueFontColor": "#ffffff",
"showXAxisLine": "1",
"xAxisLineColor": "#999999",
"divlineColor": "#999999",
"divLineIsDashed": "1",
"showAlternateHGridColor": "0",
"subcaptionFontBold": "0",
"subcaptionFontSize": "14"
},
"data": [{
"label": "Jan",
"value": "420000"
}, {
"label": "Feb",
"value": "810000"
}, {
"label": "Mar",
"value": "720000"
}, {
"label": "Apr",
"value": "550000"
}, {
"label": "May",
"value": "910000"
}, {
"label": "Jun",
"value": "510000"
}, {
"label": "Jul",
"value": "680000"
}, {
"label": "Aug",
"value": "620000"
}, {
"label": "Sep",
"value": "610000"
}, {
"label": "Oct",
"value": "490000"
}, {
"label": "Nov",
"value": "900000"
}, {
"label": "Dec",
"value": "730000"
}]
},
"events": {
/**
* @description
* Triggered when a data plot is clicked.
*
* @param {Object} eventObj: An object containing all the details related to this event like eventId, sender, etc.
* @param {Object} dataObj: An object containing all the details related to chart data, such as the chart ID, index and data value of the clicked data plot.
*/
"dataPlotClick": function(eventObj, dataObj) {
var data_index = dataObj['dataIndex'],
sender = eventObj.sender,
JSONData = sender.getJSONData();
JSONData.data[data_index].toolText = prompt("Enter text here");
sender.setJSONData(JSONData);
}
}
}).render();
});body {
padding: 5px;
margin: 0 auto;
}
#header {
display: none;
}
#indicatorDiv {
width: 500px;
font-family: 'Arial', 'Helvetica';
font-size: 14px;
}
p {
margin-top: 20px;
margin-bottom: 20px;
}
#attrs-table {
text-align: center;
width: 500px;
}
.parameter-name,
.parameter-value {
width: 250px;
font-weight: bold;
text-align: center;
float: left;
}
.title,
.value {
float: left;
width: 230px;
height: 20px;
background: #fff;
padding: 5px 10px;
}
.title {
clear: left;
}
.title:nth-child(4n+1),
.value:nth-child(4n+2) {
background: rgb(0, 117, 194);
color: #fff;
}
.value {
word-wrap: break-word;
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
}<script src="http://static.fusioncharts.com/code/latest/fusioncharts.js"></script>
<!-- This sample shows the event parameters, and their values, when dataplotClick event is triggered-->
<div id="indicatorDiv">Event name: <b> dataplotClick </b>
<br>
<br>Triggered when a data plot is clicked.</br>
<br>All events, when triggered, will provide two parameters for the handler - <b> eventObj </b> (object containing information generic to all events) and <b> dataObj </b> (object containing information specific to an event).</br>br> Click any of the data plots
to trigger the event. Scroll down to the table rendered below the chart to view information contained in the dataObj object. To view information contained in the eventObj object, open the console.</br>
</br>
</div>
<div id="chart-container">FusionCharts will render here</div>
<div>
<div>
<div id="header">
<div class="parameter-name">Parameter Name</div>
<div class="parameter-value">Parameter Value</div>
</div>
<div id="attrs-table"></div>
</div>
</div>因此,您看到的是,在单击列时,将打开一个提示框(如示例代码中所述),您在提示中输入的内容将转到该索引列的工具文本.您可以执行其他操作,例如记录新的用户注释或将其保存在数据库中.
标签：javascript,php,jquery,chart-js,fusioncharts 来源： https://codeday.me/bug/20191012/1899187.html