嗨即時使用PDFSharp爲某些圖創建PDF文檔。在PDF中轉換我的圖表後,我應該在一頁上打印它們以獲得非常小的圖表,但是如果我有大圖表,則在一頁上打印它們會產生較差的打印質量,圖表將顯示得很小,圖表內容不可讀。如果我給出一個較高的比例,圖表將會更大,但有些節點會消失。使用PDFSharp創建多個頁面
所以我怎麼能創建更多的頁面,取決於我的規模和圖表大小?
private void convertBitmap(BitmapSource Img)
{
try
{
PdfSharp.Pdf.PdfDocument document = new PdfSharp.Pdf.PdfDocument();
document.Info.Title = activeDiagram.Model.Name;
PdfSharp.Pdf.PdfPage pdfPage = document.AddPage();
XGraphics gfx = XGraphics.FromPdfPage(pdfPage);
XImage xIMage = XImage.FromBitmapSource(Img);
XImage logo = XImage.FromFile("logo.png");
pdfPage.Width = xIMage.PointWidth;
pdfPage.Height = xIMage.PointHeight;
//draw the logo
gfx.DrawImage(xIMage, 15, 70, pdfPage.Width, pdfPage.Height);
gfx.DrawImage(logo, 500, 5);
// Draw the texts
string typ = "";
if (activeDiagram == myDiagram1)
typ = "EPC";
XFont font = new XFont("Arial", 12, XFontStyle.Bold);
XFont font2 = new XFont("Arial", 10, XFontStyle.Bold);
gfx.DrawString("Modelname: " + activeDiagram.Model.Name, font, XBrushes.Black,
new XRect(50, 5, 400, 20), XStringFormats.TopLeft);
gfx.DrawString("Modeltyp: " + typ, font, XBrushes.Black, new XRect(50, 25, 400,
20), XStringFormats.TopLeft);
gfx.DrawLine(new XPen(XColor.FromKnownColor(XKnownColor.CornflowerBlue), 2), 20,
45, 600, 45);
gfx.DrawLine(new XPen(XColor.FromKnownColor(XKnownColor.CornflowerBlue), 2), 20,
900, 600, 900);
gfx.DrawString("Date: " + DateTime.Now.ToShortDateString(), font2, XBrushes.Black,
new XRect(50, 905, 100, 25), XStringFormats.TopLeft);
gfx.DrawString("Page: 1 von 1 ", font2, XBrushes.Black, new XRect(530, 905, 100,
25), XStringFormats.TopLeft);
SaveFileDialog dlg = new SaveFileDialog();
lg.FileName = activeDiagram.Model.Name;
dlg.AddExtension = true;
dlg.DefaultExt = "pdf";
dlg.Filter = "PDF Document|*.pdf|*.pdf|";
if (dlg.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
// Save the document...
string filename = dlg.FileName;
document.Save(filename);
// ...and start a viewer.
Process.Start(filename);
}
}
catch (Exception ex)
{
System.Windows.Forms.MessageBox.Show(ex.Message, "Error saving graph as a
pdf");
}
}
這是什麼圖?它是作爲參數「BitmapSource Img」傳遞的圖像嗎? –
是..... var bmp = activeDiagram.Panel.MakeBitmap(new System.Windows.Size(w,h),300,new System.Windows.Point(b.X,b.Y),s,convertBitmap); – User1979