CAD Sketcher lets the user make a ‘sketch’, a 2D drawing. They then constrain it, saying “this line is vertical, that line is parallel to this one”, until the sketch is fully defined.

DraftSight 2D CAD software, which lets users create, view, and edit DWG and DXF files, is free -- and it comes with its own online social-networking communities. Online communities for ...

Drawing programs and 2D CAD programs allow objects to be drawn on an X-Y scale as if they were drawn on paper. Although 3D images can be drawn in 2D programs, their views are static. They can be ...