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由html2canvas製作的PDF中的highcharts圖片模糊?
(function() {
\t var form = $('#printContent');
\t $('#create_pdf').on('click', function() {
\t \t $('body').scrollTop(0);
\t \t createPDF();
\t });
\t //create pdf
\t function createPDF() {
\t \t getCanvas().then(function(canvas) {
\t \t \t var imgData = canvas.toDataURL("image/png");
\t \t \t var imgWidth = 210;
\t \t \t var pageHeight = 295;
\t \t \t var imgHeight = (canvas.height) * imgWidth/canvas.width;
\t \t \t var heightLeft = imgHeight;
\t \t \t var doc = new jsPDF('p', 'mm');
\t \t \t var position = 0;
\t \t \t doc.addImage(imgData, 'PNG', 0, position, imgWidth, imgHeight);
\t \t \t heightLeft -= pageHeight;
\t \t \t console.log(canvas.height);
\t \t \t while(heightLeft >= 0) {
\t \t \t \t position = heightLeft - imgHeight;
\t \t \t \t doc.addPage();
\t \t \t \t doc.addImage(imgData, 'PNG', 0, position, imgWidth, imgHeight);
\t \t \t \t heightLeft -= pageHeight;
// \t \t \t \t console.log(position);
\t \t \t }
\t \t \t doc.save('file.pdf');
\t \t });
\t }
\t // create canvas object
\t function getCanvas() {
\t \t return html2canvas(form, {
\t \t \t imageTimeout: 0,
\t \t \t removeContainer: false
\t \t });
\t }
}());
我用html2canvas
,使PDF格式,但在PDF中的圖表是模糊的,有沒有解決辦法來解決呢?標題和圖例模糊,代碼在下面?
也許你可以嘗試使用highcharts出口服務器讓你的圖像,然後讓你的PDF? http://www.highcharts.com/docs/export-module/export-module-overview –
首先感謝您的回答,但網絡中還有其他元素像表格,這些元素被認爲是打印在PDF中的,所以Highcharts的導出模塊不適用。你能否給我其他建議?再次感謝 – Amanda