descriptive geometry geometry 73 perspective 47 geometric projection 23 projective geometry 23 engineering drawing 22 mathematics 15 more ... technical practice curves 14 stereometry 13 drawings (art) 10 architecture 9 technical practice surfaces 9 architectonic drawing 7 kuželosečky 7 analytical geometry 6 teaching aids 6 kótované promítání 5 building constructions 5 Mongeovo promítání 4 axonometrie 4 differential geometry 4 physics 4 computer graphics 4 machine parts and joints 4 construction 3 polyhedra 3 plochy (geometrie) 3 parallel projection 3 civil engineering 3 building stone 3 less ...