# Orthographic_1_

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```					Objects in real life are three dimensional. That means they have a top
to bottom size (HEIGHT), they have a side to side size (LENGTH)
and they have a front to back size (DEPTH)

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Sometimes it is best to show how an
object looks by using a three
dimensional image like the photo

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shown here of the plane taking off.
Other times though, it may be best to
describe an object using a series of two
dimensional images like these ones
shown. This is how it would be done....

FILL IN THE MISSING WORDS . . . .
The ELEVATION shows what the object would look like if you looked at it from directly in front of it.
The PLAN shows what the object would look like if you looked at it from                                                         PLAN
The END ELEVATION shows what the object would look like if you looked at it from
This kind of line                       is called a
It is used to show

LAYOUT
Orthographic views always have to be laid out the same way. The PLAN must always be directly above
the ELEVATION.
The END ELEVATION must always be directly to the left or to the right of the ELEVATION

LOOK AT THE EXAMPLE SHOWN !                           END ELEVATION         ELEVATION     END ELEVATION   USEFUL PRESENTATIONS
Behind every orange box on this page is a presentation which youshould watch. They
will help you in a couple of ways.
They could be used to confirm that your understanding of a topicis correct.

NAME :                                      DATE :
nd
They could also be used to guide you in the topics which you fou difficult in class
the first time round. They are designed as self help. Go throughthem slowly and if you
still don’t get it, go back to your teacher as soon as possible.

REMINDER OF ORTHOGRAPHICS
CAD                CAG              Hardware       Software           Processes        3D Models
Isometric Intro         Iso Info      Iso Circles                                      Cylinders & Cones
Oblique Intro               Oblique Projection                                          Sectional Views
Planometric Intro           Plano - Method                                               Exploded Views
Orthographics                                                                                Assemblies
One Point Perspective                                                                   Signs & Symbols
Two Point - Intro         Examples           Method                                          Line Types
Square Pyramids                                                 Graphs & Charts           Colour Theory

Click on a square . . .

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 views: 7 posted: 3/25/2011 language: English pages: 1