DWG files are used to create technical drawings and blueprints containing two or three-dimensional vector graphics. Accordingly, you may need to render such drawings in 3D modeling applications for visualizing or manipulating the designs. You can convert the DWG file to a 3D Object file in OBJ format. This article covers how to convert a DWG drawing to an OBJ file programmatically in C#.

DWG to OBJ Converter – .NET API Installation

Aspose.CAD for .NET API can be used to create, edit, manipulate, or convert AutoCAD files without even needing to install any user interface-based application or tool. You can simply configure the API by downloading its DLL file from the New Releases section or using the NuGet installation command below:

PM> Install-Package Aspose.CAD

Convert DWG to OBJ File Programmatically in .NET

You can efficiently convert a DWG file to OBJ format with a few simple steps:

  1. Load the input DWG file with an object of the Image class.
  2. Typecast the previously initialized instance to CadImage type.
  3. Save the output 3D Object OBJ file using the Save method.

The code snippet below shows how to convert a DWG file to an OBJ file programmatically in C#:

Explore More Features

You can explore and learn many other features offered by the API as covered under the documentation space. It contains details about working with DGN, DXF, STL, PLT, and many other CAD-related file formats.


In this article, you have inspected how to convert DWG to OBJ file format. This feature can be scaled considering the scope of your application. For example, you may create multiple threads for the parallel processing of several files. Moreover, if you want to discuss any of your concerns, please reach out to us at the forum.

See Also

Convert DWG to FBX Programmatically in C#