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How to convert files from nTopology
to Open CASCADE?

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Convert nTopology to Open CASCADE with CAD Exchanger products

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CAD Exchanger Lab

Desktop application to view, explore and convert 3D CAD data across 30+ file formats.

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Convert nTopology to Open CASCADE with ease and flexibility:

  • hide certain details and groups before conversion
  • add XYZ section planes
  • explode assemblies
  • choose between view, projection, and selection modes
  • add measurements
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CAD Exchanger SDK

CAD Exchanger SDK

Software libraries for C#, C++, Java, Javascript and Python.

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Include a wide range of conversion options in your apps:

  • rapidly build production-ready applications with clear and structured API
  • import, export, visualize and analyze 3D CAD files, including Open CASCADE
  • complete more tasks with powerful add‑ons
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Learn how to convert nTopology to Open CASCADE with CAD Exchanger

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nTopology is a versatile, industry-leading data preparation and STL editor software for Additive Manufacturing that allows you to convert files to STL, repair errors, edit your design and prepare your build platform.

Open CASCADE

In solid modeling and computer-aided design, boundary representation—often abbreviated as B-rep or BREP—is a method for representing shapes using the limits. A solid is represented as a collection of connected surface elements, the boundary between solid and non-solid.

Boundary representation of models are composed of two parts: topology and geometry (surfaces, curves and points). The main topological items are: faces, edges and vertices. A face is a bounded portion of a surface; an edge is a bounded piece of a curve and a vertex lies at a point. Other elements are the shell (a set of connected faces), the loop (a circuit of edges bounding a face) and loop-edge links (also known as winged edge links or half-edges) which are used to create the edge circuits. The edges are like the edges of a table, bounding a surface portion.

Compared to the constructive solid geometry (CSG) representation, which uses only primitive objects and Boolean operations to combine them, boundary representation is more flexible and has a much richer operation set. In addition to the Boolean operations, B-rep has extrusion (or sweeping), chamfer, blending, drafting, shelling, tweaking and other operations which make use of these.

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Convert nTopology
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