ORTHOGRAPHICPROJECTIONfr.Greek,orthos:correct,right,straight;graphe:write,draw,recordMul1viewDrawingSystemPlanSec1onEleva1on
ORTHOGRAPHICPROJECTION–Mul1viewvs.Single-viewDrawingSystems
ORTHOGRAPHICPROJECTION:Mul1viewdrawingsystem
ORTHOGRAPHICPROJECTIONorthos:correct,right,straight;graphe:write,draw,record
PLAN
SECTION
SECTION
SECTION-Context
SECTION
ELEVATION
ELEVATION
DRAWINGCOMPOSITION
DRAWINGCOMPOSITION
CONSTRUCTINGVIEWS
Francis Ching, Design Graphics
x y x+y=90 degrees
vertical elementsremain vertical indrawing
Sketching in axonometric