Ask the Chatbot Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture Money Videos
drafting
Table of Contents
References & Edit History Quick Facts & Related Topics
Images
Figure 1: Two techniques of representing an object. (A) Perspective drawing, suggesting that the object is cubical. (B) Orthographic top and front views, revealing that the object is not cubical. Figure 2: Orthographic projections of a three-dimensional object onto vertical and horizontal planes. (A) Object located in the first of four quadrants defined by intersecting planes. (B) Result of rotating the horizontal plane into coincidence with the vertical plane. (C) The same object located in the third quadrant. (D) Result of rotating the horizontal plane as in (B), showing exchanged positions of top and front views. Figure 3: Selection of points to be projected in preparing orthographic views (see text). Figure 4: Three objects with identical top and front views. (Top row) Pictorial drawings. (Bottom row) Top, front, and side views, showing how the side views resolve the ambiguity. Figure 5: Use of dashed lines to represent edges hidden in views of a complicated object. Figure 6: Descriptive geometry, principle I (see text). Figure 7: Identification of the hidden edge in third-angle projections of a tetrahedron (see text). Figure 8: Descriptive geometry, principle II (see text). Figure 9: Use of auxiliary view to show true size and shape of an inclined surface (ABCD), which is not correctly represented in the front, top, or side view (see text). computer-aided design
For Students
drafting summary
Discover
Wolfgang Amadeus Mozart. Mozart rehearsing his 12th Mass with singer and musician. (Austrian composer. (Johann Chrysostom Wolfgang Amadeus Mozart)
7 Famous Child Prodigies
Ahura Mazda - relief of the Zoroastrian god Ahura Mazda at the ancient ruins of Persepolis in Iran. Also known as Ormazd Zoroastrianism,
Which Religion Is the Oldest?
Close up of books. Stack of books, pile of books, literature, reading. Homepage 2010, arts and entertainment, history and society
12 Novels Considered the “Greatest Book Ever Written”
Nero (Nero Claudius Caesar Augustus Germanicus) (ad 50-54) the fifth Roman emperor (ad 54-68), stepson and heir of the emperor Claudius.
Did Nero Really Fiddle as Rome Burned?
The Cheshire Cat is a fictional cat from Lewis Carroll's Alice's Adventures in Wonderland. (Alice in Wonderland)
11 Banned Books Through Time
Statue of Nostradamus
Nostradamus and His Prophecies
American bison (Bison bison) also known as buffalo or plains buffalo on the prairie, western U.S.
What’s the Difference Between Bison and Buffalo?

drafting: Facts & Related Content

verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
Share
Share to social media
URL
https://www.britannica.com/facts/drafting
Written and fact-checked by
The Information Architects of Encyclopaedia Britannica

The Information Architects maintain a master list of the topics included in the corpus of  Encyclopædia Britannica, and create and manage the relationships between them.
The Information Architects of Encyclopaedia Britannica

Facts

Also Known As draughting • engineering graphics • engineering drawing

Photos

Figure 1: Two techniques of representing an object. (A) Perspective drawing, suggesting that the object is cubical. (B) Orthographic top and front views, revealing that the object is not cubical.
Figure 2: Orthographic projections of a three-dimensional object onto vertical and horizontal planes. (A) Object located in the first of four quadrants defined by intersecting planes. (B) Result of rotating the horizontal plane into coincidence with the vertical plane. (C) The same object located in the third quadrant. (D) Result of rotating the horizontal plane as in (B), showing exchanged positions of top and front views.
Figure 3: Selection of points to be projected in preparing orthographic views (see text).
Figure 4: Three objects with identical top and front views. (Top row) Pictorial drawings. (Bottom row) Top, front, and side views, showing how the side views resolve the ambiguity.
Figure 5: Use of dashed lines to represent edges hidden in views of a complicated object.
Figure 6: Descriptive geometry, principle I (see text).
Figure 7: Identification of the hidden edge in third-angle projections of a tetrahedron (see text).
Figure 8: Descriptive geometry, principle II (see text).
Figure 9: Use of auxiliary view to show true size and shape of an inclined surface (ABCD), which is not correctly represented in the front, top, or side view (see text).
computer-aided design
See All Images →

Related Topics and References

Topics