CAD Exchanger SDK | Libraries to read and write 3D CAD files (2024)

Import and Export

Exchange data in 30+ supported 3D/2D CAD and BIM formats, preserving every possible bit of content, including structure, geometry, metadata and appearances. Import data from proprietary formats such as SOLIDWORKS, CATIA, NX and Creo without expensive CAD software. Export data to STEP, JT, glTF, FBX and other 3D and CAD formats for further processing in your software of choice. Enjoy blazing fast conversions thanks to intelligent parallel processing.

Visualization of CAD, BIM & 3D data

The all-in-one 3D viewer components for various UI technologies provide a multitude of features - customizable and controllable viewport, programmatic and user selection, exploded and section views, measurements and manipulator. The modular scene graph architecture enables fine control over the look of 3D objects and allows to mix them with 3D data created on-the-fly. Aside from the 3D viewers, the SDK can also be used with popular visualization platforms: Unity, Three.js, UNIGINE.

Full access to 3D and drawing data

Unified format-neutral data model provides access to all aspects of the 3D and drawing data regardless of where it came from. Traverse arbitrarily nested part-assembly trees with ease via visitors. Explore structure of drawings by accessing all sheets, views and layers. Inspect B-Rep and mesh geometry down to the last vertex. Retrieve contents of drawings: 2D curves, dimensions, hatches, notes and more.

Analysis and Measurement

Analyze face and edge geometry by querying surface and curve types and type-specific properties. Calculate curve lengths, as well as curve and surface local features: tangents, normals and curvatures. Utilize powerful correspondence between 3D curves and parametric curves to write complex B-Rep processing algorithms. Compute bounding boxes, centroids, volumes and surface areas for models for integrity assessment or domain-level processing.

Full access to PMI and insights from 3D data

Easily extract from and attach to the model conceptual information stored as names, IDs and metadata assigned to parts, assemblies or geometry. Access PMI annotations such as dimensions, tolerances, feature control frames and others in graphical or machine-readable forms. Build intelligent manufacturing-related algorithms by accessing faces and edges that PMI annotations are assigned to. Create machine-readable PMI annotations and export to STEP and JT for further usage.

Mesh Generation and Model Modification

Quickly generate high quality triangular meshes from precise B-Rep geometry. Control mesh granularity with convenient presets or fine-tune the result with a rich set of parameters. Use the model editing capabilities to combine existing models or create models from scratch. Create primitive shapes, extrusions and rotations or even arbitrarily complex B-Rep bodies via bottom-up modeling (from vertex to solid).

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