Svenska ElektronikForumet

Kod: Markera allt

public static void writePDFimageFromStream(MemoryStream chartStream, int plotNum)
        {
            XGraphics gfx;
            double x = 0, y = 0;
            var img = new System.Windows.Media.Imaging.BitmapImage();
            img.BeginInit();
            img.StreamSource = chartStream;
            img.EndInit();
            PdfDocument document = PdfReader.Open(finalfilename, PdfDocumentOpenMode.Modify);
            if (document.AcroForm.Elements.ContainsKey("/NeedAppearances") == false)
            {
                document.AcroForm.Elements.Add("/NeedAppearances", new PdfBoolean(true));
            }
            else
            {
                document.AcroForm.Elements["/NeedAppearances"] = new PdfBoolean(true);
            }
            int numPages = document.PageCount;

            XImage image = XImage.FromBitmapSource(img);
            double width = image.PixelWidth;
            double hrez = image.HorizontalResolution;
            double height = image.PixelWidth;
            double vrez = image.VerticalResolution;
            switch (plotNum)
            {
                case 0:
                    gfx = XGraphics.FromPdfPage(document.Pages[2]);
                    x = 60;
                    y = 200;
                    gfx.DrawImage(image, x, y,250d,250d);
                    gfx = null;
                    //gfx.Dispose();
                    break;
                case 1:
                    gfx = XGraphics.FromPdfPage(document.Pages[2]);
                    x = 325;
                    y = 200;
                    gfx.DrawImage(image, x, y, 250d, 250d);
                    gfx.Dispose();
                    break;
                case 2:
                    gfx = XGraphics.FromPdfPage(document.Pages[2]);
                    x = 60;
                    y = 500;
                    gfx.DrawImage(image, x, y, 250d, 250d);
                    gfx.Dispose();
                    break;
                case 3:
                    gfx = XGraphics.FromPdfPage(document.Pages[2]);
                    x = 325;
                    y = 500;
                    gfx.DrawImage(image, x, y, 250d, 250d);
                    gfx.Dispose();
                    break;
                case 4:
                    gfx = XGraphics.FromPdfPage(document.Pages[3]);
                    x = 60;
                    y = 200;
                    gfx.DrawImage(image, x, y, 250d, 250d);
                  //  gfx = null;
                    gfx.Dispose();
                    break;
                case 5:
                    gfx = XGraphics.FromPdfPage(document.Pages[3]);
                    x = 325;
                    y = 200;
                    gfx.DrawImage(image, x, y, 250d, 250d);
                    gfx = null;
             //       gfx.Dispose(); gfx = null;
                    gfx.Dispose();
                    break;
                case 6:
                    gfx = XGraphics.FromPdfPage(document.Pages[3]);
                    x = 60;
                    y = 500;
                    gfx.DrawImage(image, x, y, 250d, 250d);
                    gfx.Dispose();
                    break;
                case 7:
                    gfx = XGraphics.FromPdfPage(document.Pages[3]);
                    x = 325;
                    y = 500;
                    gfx.DrawImage(image, x, y, 250d, 250d);
                    gfx.Dispose();
                    break;
                default:
                    break;

            }
            document.Save(finalfilename);
            

            chartStream = null;

            image.Dispose();
            document.Close();
            document.Dispose();
            
            GC.Collect();
         
            
        }

Kod: Markera allt

 BitmapSource render = plotRender(pltEvapDuty1, pltEvapDuty1.ActualWidth, pltEvapDuty1.ActualWidth);
                using (MemoryStream EvapDuty1Stream = new MemoryStream())
                {
                    PngBitmapEncoder encoder = new PngBitmapEncoder();
                    encoder.Frames.Add(BitmapFrame.Create(render));
                    encoder.Save(EvapDuty1Stream);
                    CalcPdfOutput.writePDFimageFromStream(EvapDuty1Stream, 0);
                }

Kod: Markera allt

 private BitmapSource plotRender(Visual target, double dpiX, double dpiY)
        {
            if (target == null)
            {
                return null;
            }
            Rect bounds = VisualTreeHelper.GetDescendantBounds(target);
            RenderTargetBitmap rtb = new RenderTargetBitmap((int)(bounds.Width * dpiX / 96.0),
                                                            (int)(bounds.Height * dpiY / 96.0),
                                                            dpiX,
                                                            dpiY,
                                                            PixelFormats.Pbgra32);
            DrawingVisual dv = new DrawingVisual();
            using (DrawingContext ctx = dv.RenderOpen())
            {
                VisualBrush vb = new VisualBrush(target);
                ctx.DrawRectangle(vb, null, new Rect(new Point(), bounds.Size));
            }
            rtb.Render(dv);
            return rtb;
        }

Kod: Markera allt

using (MemoryStream COP2Stream = new MemoryStream())
                {
                    JpegBitmapEncoder encoder = new JpegBitmapEncoder();
                    encoder.Frames.Add(BitmapFrame.Create(render));
                    encoder.Save(COP2Stream);
                    CalcPdfOutput.writePDFimageFromStream(COP2Stream, 7);
                }

Kod: Markera allt

BitmapImage img = new BitmapImage();
            img.BeginInit();
            
            img.StreamSource = chartStream;
            img.EndInit();