AutoCAD extensions EasySite for terrain modelling and visualization, and EasySurf for mapping and road development, as well as related symbol libraries. http://www.cadeasy.com/
2D and 3D steel and concrete detailing for AutoCAD. Also available as platform-independent incorporating AutoCAD OEM technology. http://www.multisuite.com/
Suite of parametric driven modules that provide tools and macros related to the preparation of structural engineering drawings. http://www.struc-plus.com/
Provides Structural CAD, a structural engineering design software for steel, wood, and concrete compatable with Audodesk AutoCAD. http://www.cadpointinc.com/
3D CAD software for creating 3D architectural window and transom blocks used in 3D architectural design, brick wall options. http://www.eznow.net/ezcad/index.html
GEOL_DH for graphical representation of geological, surveyor, mining and calculation data in 3D space. KAI-2001 package for geologists and geophysicists, surveyors and miners, builders-designers. http://geol-dh.ru/en_index.html