The programmer's solid 3D CAD modeller
A free and open source multiplatform 3D parametric modeler
Cross-platform Open-source 2D CAD
E-XD++ Diagram Control for C/C++, .NET, the professional Diagram.
E-XD++ Flow Chart Control for C, Visual C++, .NET, ASP.NET, with codes
Print and Report Control Source Codes for C/C++, .net
power system configuration and simulation, c/c++ and .NET
Free minimalist software for maps, import DWG, DXF, SHP, KML, GeoJSON
Open Source Desktop GIS with Surveying and Cartography Functionality
Surface Explorer 3D plots mathematical surfaces in 3D.
HMI - SCADA Graphics Visualization Source Code Solution For C/C++
CAD Draw, CAD Control, printing, C/C++,.NET Source Codes
French Geographic Information System
A Windows-based viewer currently supporting CDR & 2D DXF files
A set of freeware applications for viewing/processing P-CAD files.
Simple Road Design and Earthworks
Nesting SDK, Library
Analog \ digital circuit design and simulation source code
City maps, military maps, mine maps, the power of geography with C++
Library with DXF related functions (work in progress)
Automated detection of the unknown early map projection
Converts between many 3D data formats