Draw vector graphics to scale using a descriptive language
A Windows-based viewer currently supporting CDR & 2D DXF files
E-XD++ Flow Chart Control for C, Visual C++, .NET, ASP.NET, with codes
E-XD++ Diagram Control for C/C++, .NET, the professional Diagram.
A set of freeware applications for viewing/processing P-CAD files.
SOLVESPACE is a free (GPLv3) parametric 3d CAD tool.
Analog \ digital circuit design and simulation source code
City maps, military maps, mine maps, the power of geography with C++
Floor plan, architectural design, furniture, layout, production...
Visio style source code component library, flow charts, vector