descriptive geometry geometry 60 perspective 45 projective geometry 23 engineering drawing 22 geometric projection 20 technical practice curves 14 more ... stereometry 12 mathematics 11 drawings (art) 10 technical practice surfaces 9 architecture 8 analytical geometry 6 architectonic drawing 6 teaching aids 6 kótované promítání 5 differential geometry 4 kuželosečky 4 building constructions 4 machine parts and joints 4 Mongeovo promítání 3 axonometrie 3 construction 3 polyhedra 3 computer graphics 3 civil engineering 3 building stone 3 arithmetic 2 geodesy 2 geometrické modelování 2 less ...