Exporting CAD

Export 3D AutoCAD Images to PDF

Aspose.CAD allows you to export 3D AutoCAD images to PDF. Please use the Aspose.CAD.ImageOptions.CadRasterizationOptions to specify that you want to export 3D entities.

The following sample code loads an AutoCAD 3D file and exports it to PDF. Once the file is converted to PDF, you can open it using your favorite PDF viewer.

// The path to the documents directory.
string MyDir = RunExamples.GetDataDir_ConvertingCAD();
string sourceFilePath = MyDir + "conic_pyramid.dxf";
using (Aspose.CAD.Image cadImage = Aspose.CAD.Image.Load(sourceFilePath))
{
    Aspose.CAD.ImageOptions.CadRasterizationOptions rasterizationOptions = new Aspose.CAD.ImageOptions.CadRasterizationOptions();
    rasterizationOptions.PageWidth = 500;
    rasterizationOptions.PageHeight = 500;
   // rasterizationOptions.TypeOfEntities = TypeOfEntities.Entities3D;

    rasterizationOptions.Layouts = new string[] { "Model" };
    PdfOptions pdfOptions = new PdfOptions();
    pdfOptions.VectorRasterizationOptions = rasterizationOptions;
    MyDir = MyDir + "Export3DImagestoPDF_out.pdf";
    cadImage.Save(MyDir, pdfOptions);
}

Exporting CAD Layouts to PDF

Aspose.CAD for .NET allows you to export CAD layouts to PDF. The Save method of the CadImage class can be used to export layout(s) to PDF format.

The following sample code loads a CAD file and exports its “Model” layout to PDF. Once the file is converted to PDF, you can open it using your favorite PDF viewer.

// The path to the documents directory.
string MyDir = RunExamples.GetDataDir_ConvertingCAD();
string sourceFilePath = MyDir + "conic_pyramid.dxf";
// Create an instance of CadImage class and load the file.
using (Aspose.CAD.Image cadImage = (Aspose.CAD.Image)Image.Load(sourceFilePath))
{
    // Create an instance of CadRasterizationOptions class
    CadRasterizationOptions rasterizationOptions = new CadRasterizationOptions();
    rasterizationOptions.PageWidth = 1600;
    rasterizationOptions.PageHeight = 1600;

    // Set the Entities type property to Entities3D.
    //rasterizationOptions.TypeOfEntities = TypeOfEntities.Entities3D;

    rasterizationOptions.AutomaticLayoutsScaling = true;
    rasterizationOptions.NoScaling = false;
    rasterizationOptions.ContentAsBitmap = true;

    // Set Layouts
    rasterizationOptions.Layouts = new string[] { "Model" };

    // Create an instance of PDF options class
    PdfOptions pdfOptions = new PdfOptions();
    pdfOptions.VectorRasterizationOptions = rasterizationOptions;

    MyDir = MyDir + "CADLayoutsToPDF_out.pdf";

    // Set Graphics options
    rasterizationOptions.GraphicsOptions.SmoothingMode = SmoothingMode.HighQuality;
    rasterizationOptions.GraphicsOptions.TextRenderingHint = TextRenderingHint.AntiAliasGridFit;
    rasterizationOptions.GraphicsOptions.InterpolationMode = InterpolationMode.HighQualityBicubic;

    //Export to PDF by calling the Save method
    cadImage.Save(MyDir, pdfOptions);
}

Support for setup of Pen in Export

Aspose.CAD for .NET allows you to add pen options in the export properties of CAD. Using CadRasterizationOptions we can set pen properties options.

The below is a sample code to achieve specified requirements.

string MyDir = RunExamples.GetDataDir_ConvertingCAD();
string sourceFilePath = MyDir + "conic_pyramid.dxf";
CadImage cadImage = (CadImage)Image.Load(sourceFilePath);
CadRasterizationOptions rasterizationOptions = new CadRasterizationOptions();
PdfOptions pdfOptions = new PdfOptions();

// Here user can change default start cap and end cap of pens when exporting CadImage object to
// image. It can be using for all image formats: pdf, png, bmp, gif, jpeg2000, jpeg, psd, tiff, wmf.
// If user doesn't use PenOptions, system will use its own default pens (different in defferent places).
rasterizationOptions.PenOptions = new PenOptions
{
    StartCap = LineCap.Flat,
    EndCap = LineCap.Flat
};

pdfOptions.VectorRasterizationOptions = rasterizationOptions;

cadImage.Save(MyDir+"9LHATT-A56_generated.pdf", pdfOptions);
    
    

Decompose CAD Insert Object

Aspose.CAD for .NET allows you to decompose CAD objects and process separate entities inside insert. The below is a sample code to achieve specified requirements.

			string MyDir = RunExamples.GetDataDir_ConvertingCAD();
			string sourceFilePath = MyDir + "conic_pyramid.dxf";
			using (CadImage cadImage = (CadImage)Image.Load(sourceFilePath))
			{

				for (int i = 0; i < cadImage.Entities.Length; i++)
				{
					if (cadImage.Entities[i].TypeName == CadEntityTypeName.INSERT)
					{
						CadBlockEntity block = cadImage.BlockEntities[(cadImage.Entities[i] as CadInsertObject).Name];

						foreach (CadBaseEntity baseEntity in block.Entities)
						{
							//  processing of entities
						}
					}
				}

Support for ACAD Proxy Entities

Aspose.CAD for .NET allows you to read and export ACAD_PROXY_ENTITY entities. The below is a sample code to achieve specified requirements.

string MyDir = RunExamples.GetDataDir_ConvertingCAD();
string sourceFilePath = MyDir + "conic_pyramid.dxf";

using (CadImage cadImage = (CadImage)Image.Load(sourceFilePath))
{
	CadRasterizationOptions rasterizationOptions = new CadRasterizationOptions();
	rasterizationOptions.UnitType = UnitType.Inch;
	rasterizationOptions.DrawType = CadDrawTypeMode.UseObjectColor;
	rasterizationOptions.BackgroundColor = Color.Black;
	rasterizationOptions.Layouts = new string[] { "Model" };
	PdfOptions pdfOptions = new PdfOptions
	{
		VectorRasterizationOptions = rasterizationOptions
	};
	cadImage.Save(MyDir+"output.pdf", pdfOptions);
}

Integrate IGES Format

Aspose.CAD for .NET allows you to read and export IGES format. The below is a sample code to achieve specified requirements.

			string MyDir = RunExamples.GetDataDir_IGESDrawings();

			string sourceFilePath = MyDir + ("figa2.igs");
			string outPath = MyDir + ("meshes.pdf");

			using (Image igesImage = Image.Load(sourceFilePath))

			{
				Aspose.CAD.ImageOptions.PdfOptions pdf = new Aspose.CAD.ImageOptions.PdfOptions();
				pdf.VectorRasterizationOptions = new Aspose.CAD.ImageOptions.CadRasterizationOptions();
				pdf.VectorRasterizationOptions.PageHeight = 1000;
				pdf.VectorRasterizationOptions.PageWidth = 1000;
				igesImage.Save("figa2.pdf", pdf);
			}

Support for Mesh Models

Aspose.CAD for .NET allows you to implement and count mesh models like edges, vertices, and faces that use polygonal representation. The below is a sample code to achieve specified requirements.

string MyDir = RunExamples.GetDataDir_DWGDrawings();
		
string sourceFilePath = MyDir+("meshes.dwg");
string outPath = MyDir+("meshes.pdf");

using (CadImage cadImage = (CadImage)Image.Load(sourceFilePath))
{
	CadRasterizationOptions rasterizationOptions = new CadRasterizationOptions();
	rasterizationOptions.PageWidth = 1600;
	rasterizationOptions.PageHeight = 1600;
	//rasterizationOptions.TypeOfEntities = TypeOfEntities.Entities3D;
	rasterizationOptions.Layouts = new string[] { "Model" };
	PdfOptions pdfOptions = new PdfOptions
	{
		VectorRasterizationOptions = rasterizationOptions
	};

	{
		cadImage.Save(outPath, pdfOptions);
	}

}

Set Custom Point Of View

Aspose.CAD for .NET allows you to set a custom point of view for Model layout. Using VectorRasterizationOptions you can set a custom point of view. The code sample below shows how to set a custom point of view.

// The path to the documents directory.
string MyDir = RunExamples.GetDataDir_ConvertingCAD();
string sourceFilePath = MyDir + "conic_pyramid.dxf";
var outPath = Path.Combine(MyDir, "FreePointOfView_out.jpg");
using (CadImage cadImage = (CadImage)Image.Load(sourceFilePath))
{
    JpegOptions options = new JpegOptions
    {
        VectorRasterizationOptions = new CadRasterizationOptions
        {
            PageWidth = 1500, PageHeight = 1500
        }
    };

    float xAngle = 10; //Angle of rotation along the X axis
    float yAngle = 30; //Angle of rotation along the Y axis
    float zAngle = 40; //Angle of rotation along the Z axis
    ((CadRasterizationOptions)(options.VectorRasterizationOptions)).ObserverPoint = new ObserverPoint(xAngle, yAngle, zAngle);

    cadImage.Save(outPath, options);
}