public PaperTarget(string name, PdfSharp.PageSize pageSize)
{
Name = name;
PdfPage p = new PdfPage();
p.Size = pageSize;
_width = p.Width;
_height = p.Height;
}
public void AddPage(PdfSharp.PageSize size)
{
_page = _document.AddPage();
_page.Size = size;
_gfx = XGraphics.FromPdfPage(_page);
}
public static bool ToPdf(this Document document, IEnumerable <ElementId> viewElementIds, string path, PdfSharp.PageSize pageSize = PdfSharp.PageSize.A4, ImageResolution imageResolution = ImageResolution.DPI_600)
{
if (document == null || viewElementIds == null || string.IsNullOrWhiteSpace(path))
{
return(false);
}
if (!System.IO.Directory.Exists(System.IO.Path.GetDirectoryName(path)))
{
return(false);
}
//Creating directory for temporary images
string directory = System.IO.Path.Combine(System.IO.Path.GetTempPath(), System.Guid.NewGuid().ToString());
System.IO.Directory.CreateDirectory(directory);
string name = string.IsNullOrEmpty(document.Title) ? "???" : document.Title;
//Adjusting image pixel size
int pixelSize = 512;
switch (pageSize)
{
case PdfSharp.PageSize.A0:
pixelSize = 14043;
break;
case PdfSharp.PageSize.A1:
pixelSize = 9933;
break;
case PdfSharp.PageSize.A2:
pixelSize = 7016;
break;
case PdfSharp.PageSize.A3:
pixelSize = 4961;
break;
case PdfSharp.PageSize.A4:
pixelSize = 3508;
break;
case PdfSharp.PageSize.A5:
pixelSize = 2480;
break;
}
//Adjusting image resolution
switch (imageResolution)
{
case ImageResolution.DPI_600:
pixelSize = pixelSize * 2;
break;
case ImageResolution.DPI_300:
pixelSize = pixelSize * 1;
break;
case ImageResolution.DPI_150:
pixelSize = System.Convert.ToInt32(pixelSize * 0.5);
break;
case ImageResolution.DPI_72:
pixelSize = System.Convert.ToInt32(pixelSize * 0.25);
break;
}
//Creating Revit Export Options for View Image
ImageExportOptions imageExportOptions = new ImageExportOptions()
{
FilePath = System.IO.Path.Combine(directory, name),
FitDirection = FitDirectionType.Horizontal,
ZoomType = ZoomFitType.FitToPage,
ImageResolution = imageResolution,
HLRandWFViewsFileType = ImageFileType.PNG,
ShadowViewsFileType = ImageFileType.PNG,
PixelSize = pixelSize,
ExportRange = ExportRange.SetOfViews
};
//Exporting temporary images from Views. Necessary to do it one by one to keep view order
List <string> imagePaths = new List <string>();
foreach (ElementId elementId in viewElementIds)
{
if (elementId == null)
{
continue;
}
View view = document.GetElement(elementId) as View;
if (view == null)
{
continue;
}
imageExportOptions.SetViewsAndSheets(new List <ElementId>()
{
elementId
});
document.ExportImage(imageExportOptions);
foreach (string imagePath in System.IO.Directory.GetFiles(directory))
{
if (!imagePaths.Contains(imagePath))
{
imagePaths.Add(imagePath);
break;
}
}
}
//Creating pdf Document from view images
using (PdfDocument pdfDocument = new PdfDocument())
{
foreach (string imagePath in imagePaths)
{
PdfPage pdfPage = pdfDocument.AddPage();
pdfPage.Size = pageSize;
byte[] bytes = System.IO.File.ReadAllBytes(imagePath);
using (System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(bytes, false))
{
double widthFactor = 1;
double heightFactor = 1;
XImage xImage = XImage.FromStream(memoryStream);
if (xImage.PointHeight > xImage.PointWidth)
{
pdfPage.Orientation = PdfSharp.PageOrientation.Portrait;
widthFactor = xImage.PointWidth / pdfPage.Width.Point;
}
else
{
pdfPage.Orientation = PdfSharp.PageOrientation.Landscape;
heightFactor = xImage.PointHeight / pdfPage.Height.Point;
}
XGraphics xGraphics = XGraphics.FromPdfPage(pdfPage);
xGraphics.DrawImage(xImage, 0, 0, pdfPage.Width.Point * widthFactor, pdfPage.Height.Point * heightFactor);
}
}
pdfDocument.Save(path);
}
//Removing temporary image files -> Not necessary
foreach (string imagePath in imagePaths)
{
if (System.IO.File.Exists(imagePath))
{
System.IO.File.Delete(imagePath);
}
}
//Recursive removing whole temporary directory where view images were saved
System.IO.Directory.Delete(directory, true);
return(System.IO.File.Exists(path));
}
