Creating PDF from EMF (Metafile) In Landscape

farrukh

Hi ,

I am creating EMF file from GDI+ in C# when create a file in Portrait orientation its working fine but for landscape its not working as expected following are some scenarios I tried

1) create the METAFILE in Portrait and set landscape = true , resulted in a rotated file

1) create the METAFILE in Landscape and set landscape = true , resulted in a rotated file and some portion of the file was cliped

I have some examples on past threads to rotate the EMF Manually , I was not able to undersatand the example as I am working .Net wrapper of WPDF4

Please help me in this regard

wpsupport

I recommend to not rotate the page. Just set width and height in startpage and use stretchdraw to draw your file on the canvas.

farrukh

Hi ,

I tried to implement the stretchdraw as recommended however I was not able to find this method in the .net Wrapper following is the code snippet I am working on .

Code

            // Output PDF file name 
            var pdfFileName = Path.Combine(output, fileName + ".pdf");
            FileHelper.Delete(pdfFileName);

            // Document properties, each page is 8.5 by 11 inches at 300 DPI. Typical dimensions 

            using (var control = new wPDF.PDFControl())
            {
                control.PDFMode = eDevMode.ClipRectSupport;
                control.PDFOptions = ePDFOptions.CreateAutoLinks;
                control.Thumbnails = eThumbnails.Color;
                control.SetLicense("*******", "********", ********);


                control.BeginDoc(pdfFileName);
                foreach (string inputMetaFile in inputfiles)
                {
                    control.StartPage(ePage.DinA4, false);
                    var metaFile = new Metafile(inputMetaFile);
                    //HACK: Do not know why scale can't be correctly calculated
                    var pageWidth = ((float) metaFile.Width / (float) this._book.GetRect().Width) * 96;
                    var pageHeight = ((float) metaFile.Height / (float) this._book.GetRect().Height) * 96;
                    control.DrawMetafile(metaFile, (int) pageWidth, (int) pageHeight);

                    control.EndPage();
                }
                control.EndDoc();
            }
            // Show the PDF file 
            return pdfFileName;

Alles anzeigen

wpsupport

Ok, this is about wPDFControl, not the VCL wPDF.

It is not clear for me what your landscape-metafile looks like. Is it rotated by 90 degrees?

If not, as I assume, do not set the landscape flag in wPDFControl.

If you use StartPage ... EndPage you can create a page with the desired dimensions (resolution in 72 dpi) and then use the Canvas methods to draw your metafile.

You can apply Graphics methods to rotate any subsequent output and then draw your metafile on this Canvas. You can also print on this "Canvas".

Do not use DrawMetafile since it will output your metafile data without any change.