Highcharts:我可以向用户导出驱动图表的原始数据的Excel或CSV吗？

Question

我通过WP AdCenter插件通过HighCharts生成图表.我希望用户(管理员和订阅者)能够以Excel或CSV格式下载驱动图表的原始数据,而不仅仅是图表的PNG,JPG或PDF图像.有没有办法在没有严格修改代码的情况下做到这一点(我不是PHP程序员).这个额外的导出选项是否可以在不久的将来推出？

Answer 1

这个jsfiddle帮助您从highchart创建excel.添加到导出菜单的下载CSV选项工作正常.只要经历这一点,你就会做得更好.

这是代码:

/**
 * A small plugin for getting the CSV of a categorized chart
 */
(function (Highcharts) {

    // Options
    var itemDelimiter = ',',  // use ';' for direct import to Excel
        lineDelimiter = '\n';

    var each = Highcharts.each;
    Highcharts.Chart.prototype.getCSV = function () {
        var xAxis = this.xAxis[0],
            columns = [],
            line,
            csv = "", 
            row,
            col;

        if (xAxis.categories) {
            columns.push(xAxis.categories);
            columns[0].unshift("");
        }
        each (this.series, function (series) {
            columns.push(series.yData);
            columns[columns.length - 1].unshift(series.name);
        });

        // Transform the columns to CSV
        for (row = 0; row < columns[0].length; row++) {
            line = [];
            for (col = 0; col < columns.length; col++) {
                line.push(columns[col][row]);
            }
            csv += line.join(itemDelimiter) + lineDelimiter;
        }
        return csv;
    };    
}(Highcharts));

// Now we want to add "Download CSV" to the exporting menu. We post the CSV
// to a simple PHP script that returns it with a content-type header as a 
// downloadable file.
// The source code for the PHP script can be viewed at 
// https://raw.github.com/highslide-software/highcharts.com/master/studies/csv-export/csv.php

Highcharts.getOptions().exporting.buttons.contextButton.menuItems.push({
    text: 'Download CSV',
    onclick: function () {
        Highcharts.post('http://www.highcharts.com/studies/csv-export/csv.php', {
            csv: this.getCSV()
        });
    }
});



var chart = new Highcharts.Chart({

    chart: {
        renderTo: 'container'
    },

    xAxis: {
        categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
    },

    series: [{
        data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]
    }]

});

$('#getcsv').click(function () {
    alert(chart.getCSV());
});