Aspose.CAD for .NET 1.0.0 Release Notes

We are pleased to announce the first release of Aspose.CAD for .NET. It allows you to convert AutoCAD DWG and DXF files to PDF and Raster images. It is a native API and does not require AutoCAD or any other software to be installed.

You can also convert the selected layers and layouts from the AutoCAD files. The conversion to PDF and Raster images is of very high quality. At the moment we support the following Cad image types for loading (please refer to the DWG file history): o CadR11 o CadR13 o CadR14 o CadR2000 o CadR2004 o CadR2010 o CadR2013

Features and Improvements

Key Summary Category
CAD-92 Add support for CAD file formats in FileFormat enumeration and properly update Image.GetFileFormat method New Feature
CAD-82 Support DXF 2007 format New Feature
CAD-102 Add support for removing entities New Feature
CAD-41 Add support for leaders entity for DWG format New Feature
CAD-40 Add support for solid entity for DWG New Feature
CAD-36 Add support for solid entity for DXF New Feature
CAD-89 Exceptions namespace should be removed or renamed since it conflicts with Microsoft’s guidelines Enhancement
CAD-90 Converting DWG to PDF is producing PDF of zero size Enhancement
CAD-73 Fix reading Dimldrblk property for CadDimensionStyleTable entity in DWG format Enhancement
CAD-72 Fix issue with dimension layout Enhancement
CAD-56 Fix reading DimensionStyle entity for 2004 DWG format Enhancement
CAD-37 Improve dashed polylines drawing Enhancement
CAD-29 Render only part of an image during CAD->PDF export Enhancement

Public API and Backward Incompatible Changes

Please note that Aspose.CAD API was split from Aspose.Imaging API, hence its public API is almost the same so you can easily migrate to Aspose.CAD by renaming the namespaces to Aspose.CAD instead of Aspose.Imaging. Following is an example to convert CAD documents to PDF using Aspose.Imaging and Aspose.CAD respectively. You can notice that just Aspose.Imaging namespace has been replaced with Aspose.CAD.

Aspose.Imaging Code
 string sourceFilePath = myDir + "sample.dxf";

using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(sourceFilePath))


    //Create an instance of CadRasterizationOptions and set its various properties

    Aspose.Imaging.ImageOptions.CadRasterizationOptions rasterizationOptions = new Aspose.Imaging.ImageOptions.CadRasterizationOptions();

    rasterizationOptions.BackgroundColor = Aspose.Imaging.Color.White;

    rasterizationOptions.PageWidth = 1600;

    rasterizationOptions.PageHeight = 1600;

    //Create an instance of PdfOptions

    Aspose.Imaging.ImageOptions.PdfOptions pdfOptions = new Aspose.Imaging.ImageOptions.PdfOptions();

    //Set the VectorRasterizationOptions property

    pdfOptions.VectorRasterizationOptions = rasterizationOptions;

    //Export the DXF to PDF

    image.Save(myDir + "result.pdf", pdfOptions);

Aspose.CAD Code
 string MyDir = RunExamples.GetDataDir_ConvertingCAD();

string sourceFilePath = MyDir + "conic_pyramid.dxf";

using (Aspose.CAD.Image image = Aspose.CAD.Image.Load(sourceFilePath))


    // Create an instance of CadRasterizationOptions and set its various properties

    Aspose.CAD.ImageOptions.CadRasterizationOptions rasterizationOptions = new Aspose.CAD.ImageOptions.CadRasterizationOptions();

    rasterizationOptions.PageWidth = 1600;

    rasterizationOptions.PageHeight = 1600;

    rasterizationOptions.BackgroundColor = Aspose.CAD.Color.Beige;

    rasterizationOptions.DrawType = Aspose.CAD.FileFormats.Cad.CadDrawTypeMode.UseDrawColor;

    rasterizationOptions.DrawColor = Aspose.CAD.Color.Blue;

    // Create an instance of PdfOptions

    Aspose.CAD.ImageOptions.PdfOptions pdfOptions = new Aspose.CAD.ImageOptions.PdfOptions();

    // Set the VectorRasterizationOptions property

    pdfOptions.VectorRasterizationOptions = rasterizationOptions;

    // Export CAD to PDF

    image.Save(MyDir + "result_out_.pdf", pdfOptions);