Karabchevsky V. Computer support of relation between operations over two-dimentional and three-dimentional models

Object of research is geometrical modeling of three-dimensional objects. The purpose of research is to work up the means of computer support of graphical constructions axonometric projections reproduction, realized on complex draft. The research had been realized with help of projection methods, analytical methods and tools of graphical systems design. The methods, which provided computer support of relation between two-dimensional models on complex draft and three-dimensional models with help of constructions on axonometric projections reproduction as theirs realization on complex draft accompaniment, are worked up first. New principle of graphical database objects two classes divide was proposed: complex draft objects and three-dimensional objects. The AutoCAD graphical environment functional means was expanded with help of three-dimensional modeling process supplementation with operations inhered to complex draft modeling. Worked up program tools and theirs using recommendations are passed to Krasnoarmejsk machine-building factory, the modeling of details considered screw ruled surfaces is realizing on theirs base. Computer textbook and distant teaching course of descriptive geometry and engineering graphics are passed to applied mathematics department of Donetsk national technical university.