TY  - Type of reference 
TI  - From a simple drawing of Leonardo da Vinci to "first forms" 
AU  - Jean-Pierre Crettez 
AB  - The geometric analysis of a drawing representing the profile of a man’s head gives us a glimpse of how Leonardo established his constructive approach to profiles from a first form. The geometric analysis of three other Leonardo profiles confirms this approach. It is with this same approach that Leonardo produced his five female portraits. 
DO  - 10.21494/ISTE.OP.2020.0557 
JF  - Art and Science 
KW  - commensurability,  divine proportion,  elliptical form,  first form,  internal geometry,  secret geometry,  mesh,  golden ratio,  pouncing pattern,  portrait,  Profile,  stylization of forms, commensurabilité,  divine proportion,  forme elliptique,  forme première,  géométrie interne,  géométrie secrète,  maillage,  nombre d’or,  poncif,  portrait,  Profil,  stylisation des formes,  
L1  - https://openscience.fr/IMG/pdf/iste_artsci20v4n4_1.pdf 
LA  - en 
PB  - ISTE OpenScience 
DA  - 2020/09/16 
SN  - 2515-8767 
TT  - D’un simple dessin de Léonard de Vinci aux "formes premières" 
UR  - https://openscience.fr/From-a-simple-drawing-of-Leonardo-da-Vinci-to-first-forms 
IS  - Issue 4 
VL  - 4 
ER  -