Describir: Robin Evans. <i>The Projective Cast: architecture and its three geometries</i> : Cambridge, Mass., and London: The MIT Press, 1995

 _    _     _____     ______   __   __    ____      ______    _____   
| || | ||  |  ___||  /_   _//  \ \\/ //  |  _ \\   /_   _//  |__  //  
| || | ||  | ||__      | ||     \ ` //   | |_| ||   -| ||-     / //   
| \\_/ ||  | ||__     _| ||      | ||    | .  //    _| ||_    / //__  
 \____//   |_____||  /__//       |_||    |_|\_\\   /_____//  /_____|| 
  `---`    `-----`   `--`        `-`'    `-` --`   `-----`   `-----`  
                                                                      
   ___    
  / _ \\  
 / //\ \\ 
|  ___  ||
|_||  |_||
`-`   `-`