angular - Gridster2 anf jsPDF 不工作，不给我所有的组件 - 角度

Question

我有jsPDF代码：

 public exportAsPDF(): void {
    const data = document.getElementById('MyDIv');
    html2canvas(data).then(canvas => {
      const imgWidth = 208;
      const pageHeight = 295;
      const imgHeight = canvas.height * imgWidth / canvas.width;
      const heightLeft = imgHeight;
      const contentDataURL = canvas.toDataURL('image/png');
      const pdf = new jsPDF('l', 'mm', 'a4');
      const position = 0;
      pdf.addImage(contentDataURL, 'PNG', 0, position, imgWidth, imgHeight);
      pdf.save('Filename.pdf');
    });
)

结果是有 4 个图表并且没有用空格分隔