PROJECTION TRANSFORMATION METHODS APPLIED TO THE REPRESENTATION OF MECHANICAL PARTS. COMPARATIVE GRAPHICAL AND ANALYTICAL STUDY

摘要

The paper presents a comparative graphical and analytical study concerning the possibility of applying methods of transforming the projection – rotation and change of projection planes - for determination of spatial image of some machine parts whose edges or plane faces form imposed angles with the projection planes. An analysis of the existing relation between the two methods respectively with the axonometric representation realized by the coordinate’s method is also performed, highlighting the advantages presented by each of the considered methods. In both cases, the double rotation, respectively the double change of projection planes will be applied, equivalent to an intuitive axonometric representation which will meet, at the same time, some concrete requirements of a project.