geometros.com

What It Is

Geometros’s sgCore is a solid geometry modeling library for C++, C#, Objective-C, and Java developers. It is positioned as a low-level mathematical/geometry kernel for 3D modeling, CAD, visualization, and engineering software. The official site emphasizes that it originated from the SolidGraph CAD system and has been continuously tested and improved against real-world geometric modeling requirements.

Core Capabilities

In terms of feature coverage, sgCore provides a fairly complete set of foundational modeling capabilities. It supports solid Boolean operations, including difference, union, intersection, and surface intersection between two 3D objects. It also supports sweep-style modeling such as extrusion, revolution, pipes, and helices. Surfaces or solids can be generated from 2D curves. The library includes 2D primitives such as points, lines, circles, arcs, splines, and contours, as well as 3D primitives such as boxes, spheres, cylinders, cones, tori, and ellipsoids. It can also extract arrays of vertices, edges, triangular faces, and normals from 3D objects, and compute UV texture coordinates. For file interoperability, the main text explicitly mentions DXF and STL import/export, as well as AutoCAD SHX font import.

Platforms, APIs, and Ecosystem

sgCore is a cross-platform library supporting Windows, MacOS, iOS, and Android. At the language level, the page title lists C++, C#, Objective-C, and Java. The official site highlights a simple API, small library size, a large number of functions, and provides an SDK, tutorials, and documentation. In terms of ecosystem, its main integrations are compatibility with common CAD formats such as DXF/STL and SHX fonts, along with several customer cases. However, there is no clear information about integration with modern development ecosystems such as Unity, Unreal, CMake, NuGet, or Maven.

Pricing and Licensing

The main text does not disclose specific licensing prices for the sgCore SDK. It only states that the trial version includes almost all modeling features, making it usable for teaching geometric modeling in universities. The full version can be used in both commercial and non-commercial products without additional payments. Custom application development services are also offered at $5000 per month. Payment methods are not disclosed.

Pros, Cons, and Who It’s For

Its strengths lie in its focus on core solid geometry problems, making it suitable for teams that need to embed CAD/3D modeling capabilities into their own software. Cross-platform and multi-language support also lowers the barrier to integration. The downsides are that the official information feels somewhat dated, while pricing, licensing terms, open-source status, source code availability, and package manager integration are all unclear; some pages also appear old. It is better suited to developers of CAD/CAM, construction, research modeling, visualization software, and educational tools, rather than frontend teams that only need lightweight 3D display.

Access from China

Based solely on the crawled text, it is not possible to determine access quality from mainland China, so this is marked as unknown. If access or payment is restricted, alternatives such as Open CASCADE, CGAL, Parasolid, and ACIS may be worth evaluating.