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