Modular technology of developing of the extensions of a CAD system. The   axonometric piping diagrams. Common and special operations
  Applying the modular technology of developing of the problem-oriented extensions of a CAD system to a problem of automation of creating of the axonometric piping diagrams on an example of the program system TechnoCAD GlassX is described. The features of realization of common operations, composition and realization of special operations of a designing of the schemas of the special technological pipe lines, systems of a water line and water drain, heating, heat supply, ventilating, air conditioning are reviewed. 
Ilsur T. Safin, Vladimir V. Migunov, Rustem R. Kafiatullov