将wkhtmltopdf与highcharts一起使用会显示空白图表 [英] Using wkhtmltopdf with highcharts shows blank chart

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问题描述

我正在尝试通过Rotativa使用wkhtmltopdf转换基本的html页面,该页面使用jquery和highcharts呈现演示图.图表在浏览器中显示时可以正确呈现.谁能告诉我我在做什么错?该代码将导致空白的PDF.

I'm attempting to use wkhtmltopdf via Rotativa to convert a basic html page which uses jquery and highcharts to render a demo chart. The chart renders correctly when displayed in a browser. Can anyone tell me what I'm doing wrong? This code results in a blank PDF.

我的观点:

<!DOCTYPE html>

<html>
  <head>
    <title>Highcharts Test</title>

    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <style type="text/css">
        #chart { float:left; width:300px; height:300px; }
    </style>

    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
    <script src="http://code.highcharts.com/highcharts.js"></script>
    <script>
        $(function() {
            $('#chart').highcharts({
                chart: {
                    backgroundColor: "red"  
                },
                title: {
                    text: 'Monthly Average Temperature',
                    x: -20 //center
                },
                subtitle: {
                    text: 'Source: WorldClimate.com',
                    x: -20
                },
                xAxis: {
                    categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
                        'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
                },
                yAxis: {
                    title: {
                        text: 'Temperature (°C)'
                    },
                    plotLines: [{
                        value: 0,
                        width: 1,
                        color: '#808080'
                    }]
                },
                tooltip: {
                    valueSuffix: '°C'
                },
                legend: {
                    layout: 'vertical',
                    align: 'right',
                    verticalAlign: 'middle',
                    borderWidth: 0
                },
                series: [{
                    name: 'Tokyo',
                    data: [7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6]
                }, {
                    name: 'New York',
                    data: [-0.2, 0.8, 5.7, 11.3, 17.0, 22.0, 24.8, 24.1, 20.1, 14.1, 8.6, 2.5]
                }, {
                    name: 'Berlin',
                    data: [-0.9, 0.6, 3.5, 8.4, 13.5, 17.0, 18.6, 17.9, 14.3, 9.0, 3.9, 1.0]
                }, {
                    name: 'London',
                    data: [3.9, 4.2, 5.7, 8.5, 11.9, 15.2, 17.0, 16.6, 14.2, 10.3, 6.6, 4.8]
                }]
            });
        });
    </script>
</head>

<body>
    <div id="chart"></div>
</body>
</html>

这是我的控制器:

using System.Web.Mvc;
using Rotativa;

namespace Completions.MvcApplication.Controllers.Pages
{
public class ReportsController : BasePageController
{
    public ActionResult Systems()
    {
        return new ViewAsPdf();
    } 
}
}

谢谢!
克里斯

Thanks!
Chris

推荐答案

在我看来,图形将在中途停止渲染.所以对我有用的是关闭动画:

To me it seemed to me that the graph would stop rendering midway through. So what worked for me was setting the animation off:

plotOptions: {
    series: {
        animation: false
    }
}

这样,一旦生成pdf,便可以准备图表.

This way the chart is ready once the pdf is generated.

这篇关于将wkhtmltopdf与highcharts一起使用会显示空白图表的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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