Conic projection of cone of revolution

Abstract

     In practice, we encountered many problems about intersection between the planes with the surfaces or between the surfaces with others. Finding this intersection is one of the basic problems of geometry graphics. In each specific case, there are different intersection types so there are different methods to draw those intersections. This article refers to the problem about intersection between the planes with quadratic cone surfaces; in particular this note presents a theorem on conic projection of cone of revolution. Moreover, a expansion theorem for the case of radial projection with the projection center belong to cone axis also is presented.