UNIT -1 ORTHOGRAPHIC PROJECTION
# Concept of "Four" Quadrants
- XY - Refrence line or intersection of VP and HP
- VP- Vertical plane
- HP- Horizontal plane
- HP and VP are known reference plane or principal plane or plane of projections
#TWO MAIN ASSUMPTIONS:-
- HP and VP are assume to be transperent.
- Intersecting is hinged.
- Front view or Elevation- image projected on wall by placing torch perpendicular to object in dark room.
- Top view or plant view- imaged projected on ground by placing torch perpendicular to object in dark room.
Tags:
FY