Offers technology to display and manipulate 3D CAD and terrain models, designed to be embedded into GIS, CAD, technical documentation and e-learning applications.

Provides no-cost C library source code for 2D and 3D geometry operations, boundary offset, area booleans, milling and turning toolpaths.

Cadmai ist a parametric and relational CAD module that can be integrated as a intelligent viewer in other applications.

An educational project trying to develop a gesture-based interface for 3D modeling. It uses wxWindows, ACIS, OpenGL and DevIL.

DWGDOMlib and DXFDOMlib modules for reading and manipulating DWG and DXF files from within .NET applications.

A basic experimental lab for geometric shape processing, for learning about the mathematical theory and practical manipulation of various parametric curves.

Graphics libraries for Delphi developers, such as an OpenGL canvas, hidden lines algorithms, and geometry data management.

KernelCAD is an embedded CAD software, which adds interactive 3D solid modeling functionality to any Windows application.

Avax ActiveX control to view, create, edit, print, and manage 2D vector drawings.

A library for 2-D and 3-D geometric calculation in C, with functions for shape generation, geometric evaluation, intersection, and offsetting and filleting.