Export Questions

You can find some videos regarding exports on our YouTube channel:

ExportToRaster
ColladaExport
ExportToHOOPS

The following code fragment briefly illustrates how to export a .dwg file to a .pdf file:

OdPdfExportModulePtr pModule = ::odrxDynamicLinker()->loadApp(OdPdfExportModuleName);
//Create a custom Services instance
OdStaticRxObject >MyServices> svcs;
odInitialize(&svcs);
//Create a database and load the drawing into it (assuming that the drawing file name is passed into the main function through the second element of argv array).
OdDbDatabasePtr pDb = svcs.readFile(argv[1]);
if (!pDb.isNull())
{
  //creating exporter instance
  OdPdfExportPtr exporter = pModule->create();
}
// set export parameters and flags
PDFExportParams params;
params.setDatabase(pDb);
params.setVersion(PDFExportParams::kPDFv1_5);
//creating output stream for writing to PDF file and setting the output parameter params.setOutput(odSystemServices()->createFile(argv[2], Oda::kFileWrite, Oda::kShareDenyNo, Oda::kCreateAlways));
//set additional export options (flags)
PDFExportParams params; params.setExportFlags(PDFExportParams::kDefault);
//run exporting
OdUInt32 errCode = exporter->exportPdf(params);
//check the export result
OdString errMes = exporter->exportPdfErrorCode(errCode);
printf("\nexportPdf error returned : 0x%x. \n%s", (unsigned)errCode, (const char*)errMes);

For more information, please refer to:

• OdPdfExportEx sample application (Drawing/Examples/OdPdfExportEx)
• Exporting to a .pdf File documentation

Please refer to:

• /Drawing/Examples/OdSvgExportEx — Contains code to export the extents of model space. Search OdSvgExportEx.cpp for "zoomExtents".
• /Kernel/Exports/RasterExport — Contains code that zooms to extents for the active layout.

Search RasterExportCmd.cpp for zoomToExtents().
Note: RasterExport works the same for all formats supported by Teigha (.dwg, .dgn, .rvt, etc.)

Please refer to the "Export to .pdf File Parameters and Flags" topic and look for the "Export to a monochrome or a grayscale .pdf file" section. Although this applies to exporting to .pdf files, it works the same for .svg also.

You can use plot styles for controlling the joint and cap styles.

The application can't find the .shx and .ttf files that contain the needed characters. To solve this problem:

1. Put the font file in the same folder as the drawing.
2. If the drawing is placed in a folder other than the application, use the ACAD environment variable to set the folder with the needed font or use the application's findFile() method to specify where the font file is located.

OdString fontFile = pHostApp->findFile(L"fontFileName.ttf"); // Or use the full path name

OdTtfDescriptor descr;

pHostApp->ttfFileNameByDescriptor(descr, fontFile);

Detailed information about font handling can be found in the Font Handling topic.

Drawings SDK completely supports multi-threading only for loading and saving .dwg/.dxf files and vectorization (raster export). Importing and exporting to .svg and .png files is not currently checked and is unsafe; you can use them in a multi-threaded environment only at your own risk.

Probably, loading the PdfModule is missing from the beginning of your code:

::odrxDynamicLinker()->loadModule(OdPdfModuleVIModuleName);

To export a .dwg drawing to a vector image file:

1. Load the OdGsModule module.
2. Create the graphics device.
3. Set the required rendering properties.
4. Set up the layout to render.
5. Define the device output rectangle.
6. Initiate the rendering process using the OdGsDevice::update() method.

For more details, see OdSvgExportEx sample application (\Core\Exports\RasterExport\).

To export a dwg drawing to a raster image file:

1. Get the device for bitmap creation.
2. Load the RxRasterServices module.
3. Set the raster image parameters (e.g., width, height, bits per pixel, etc.).
4. Call the saveRasterImage() method of the raster services object.

For more details, see sources of TD_RasterExport module (Kernel\Exports\RasterExport\).

See also SimpleExportToRaster sample application (Drawing\Examples\SimpleExportToRaster\).

To export a dwg drawing to a .pdf file, follow the steps below:

1. Load the PDF export module.
2. Create a PDF export instance.
3. Set the PDF export parameters.
4. Call the exportPdf() method of the exporter object.

For more details, see the OdPdfExportEx sample application (\Examples\OdPdfExportEx).