Question

大家好我正在使用jsPDF以及html2canvas。我在add.HTML看到你可以隐藏一些div。是否有可能在html2canvas中具备此功能。

我实际上正在制作一个pdf，但我希望主要div的一些div不能在pdf中打印。

这是我的html2canvas代码。

html2canvas(quotes, {
    onrendered: function(canvas) {

        //! MAKE YOUR PDF
        var pdf = new jsPDF('p', 'pt', 'A4');
        for (var i = 0; i <= quotes.clientHeight/980; i++) {
            //! This is all just html2canvas stuff
            var srcImg  = canvas;
            var sX      = 0;
            var sY      = 980*i; // start 980 pixels down for every new page
            var sWidth  = 900;
            var sHeight = 980;
            var dX      = 0;
            var dY      = 0;
            var dWidth  = 900;
            var dHeight = 980;

            window.onePageCanvas = document.createElement("canvas");
            onePageCanvas.setAttribute('width', 900);
            onePageCanvas.setAttribute('height', 980);
            var ctx = onePageCanvas.getContext('2d');
            // details on this usage of this function:
            // https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial/Using_images#Slicing
            ctx.drawImage(srcImg,sX,sY,sWidth,sHeight,dX,dY,dWidth,dHeight);

            // document.body.appendChild(canvas);
            var canvasDataURL = onePageCanvas.toDataURL("image/png", 1.0);

            var width         = onePageCanvas.width;
            var height        = onePageCanvas.clientHeight;

            //! If we're on anything other than the first page,
            // add another page
            if (i > 0) {
                pdf.addPage(612, 791); //8.5" x 11" in pts (in*72)
            }
            //! now we declare that we're working on that page
            pdf.setPage(i+1);
            //! now we add content to that page!
            pdf.addImage(canvasDataURL, 'PNG', 20, 40, (width*.62), (height*.62));

        }
        //! after the for loop is finished running, we save the pdf.
        pdf.save('Test.pdf');
    }
});

非常感谢任何形式的帮助。提前谢谢。

Answer 1

我终于通过搜索更多about html2canvas解决了这个问题。

你只需要添加

data-html2canvas-ignore="true"

在你的html元素中

隐藏渲染中的div。

像这样

<div class="anyclass" data-html2canvas-ignore="true">any data</div>

如何在html2canvas中隐藏div

1 个答案: