1. Orthographic Projections

2. An Orthographic Projection is a 2 dimensional representation of a 3 dimensional object.

3. six perpendicular views
Any object can be viewed from
six perpendicular views

4. The Glass Box •How many sides does a glass box have?
•Envision the object in a Glass box .
•How many sides does a glass box have?
•Imagine that you trace the the object on each side of the glass box.
•You would end up with 6 drawings of different views of the object.
•You can observe 6 Standard Views of the object through the sides of the imaginary glass box.

5. The sides of the box show the
Glass Box Method
The sides of the box show the
6 planes

6. 6 Principle Views

8. Orthographic Projection of a House
...Also called Plans and Elevations

10. Assignment •Create orthographic projections for this object.
•The height of each step is equal to 3 grid squares.
•The depth of each step is
6 grid squares