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THEORY
OF
PROJECTION
WHO HAS THE EYE?
SOMETHING MAJESTIC
SOMETHING MESMERISING
SOMETHING SURPRISING
SOMETHING SHOCKING
SOMETHING TRANQUILLING
SOMETHING TERRIFYING
SOMETHING ELSE
SOMETHING ELSE
SOMETHING ELSE
SOMETHING ELSE
SOMETHING ELSE
UNDERSTANDING OBJECT & IMAGE
UNDERSTANDING OBJECT & IMAGE
DIFFERENCE BTW OBJECT AND IMAGE
PARAMETER OBJECT IMAGE
INFORMATION MULTI SINGLE
VIEWPOINT CHANGED CANNOT CHANGE
CHANGE WIT...
SIZE DOES MATTER
DIFFERENTIATE
DIFFERENTIATE
DIFFERENTIATE
THE 2D – 3D PROBLEM
2D – Engineers
3D - Customers
THE 2D – 3D PROBLEM
2D – Engineers
3D - Customers
THE 2D – 3D PROBLEM
2D – Engineers
3D - Customers
THE 2D – 3D PROBLEM
2D – Engineers
3D - Customers
THE 2D – 3D PROBLEM
2D – Engineers
3D - Customers
EXPLAINING PROJECTION
OBJECT IMAGE
PROJECTION
OBSERVER
EXPLAINING PROJECTION
PROJECTION
IS THE PROCESS OF OBTAINING
_______ __________________________
FROM
_______ _____________...
Common Elements of a Projection System
• Center /Direction of Projection/
Station Point/Observers Eye
• Projection Plane/P...
Classification of Projection
TYPES OF PROJECTION
STATION POINT
OBJECT
PLANE OF PROJECTION
PROJECTORS
TYPE DISTANCE BTW SP & PP PROJECTORS
PERSPECTIVE F...
TYPES OF PROJECTION
TYPES OF PROJECTION
WHAT PROJECTION IS THIS?
ISOMETRIC & ORTHOGRAPHIC PROJECTION
ORTHOGRAPHIC ISOMETRIC
MULTI VIEW SINGLE VIEW
SHOWS THE OBJECT AS 3
DIFFERENT IMAGES A...
WHAT SHALL WE DO?
ISOMETRIC TO ORTHOGRAPHIC
ORTHOGRAPHIC TO ISOMETRIC
PRACTICE ISO TO ORTHO #1 FRONT VIEW
SIDE VIEW
TOP VIEW
PRACTICE ISO TO ORTHO #2
PRACTICE ISO TO ORTHO #3
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Theory of projection

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A basic introductory class to Theory of Projection with a specific focus on Anna University first year students handling Engineering Graphics

Published in: Technology, Business
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Transcript of "Theory of projection"

  1. 1. THEORY OF PROJECTION
  2. 2. WHO HAS THE EYE?
  3. 3. SOMETHING MAJESTIC
  4. 4. SOMETHING MESMERISING
  5. 5. SOMETHING SURPRISING
  6. 6. SOMETHING SHOCKING
  7. 7. SOMETHING TRANQUILLING
  8. 8. SOMETHING TERRIFYING
  9. 9. SOMETHING ELSE
  10. 10. SOMETHING ELSE
  11. 11. SOMETHING ELSE
  12. 12. SOMETHING ELSE
  13. 13. SOMETHING ELSE
  14. 14. UNDERSTANDING OBJECT & IMAGE
  15. 15. UNDERSTANDING OBJECT & IMAGE
  16. 16. DIFFERENCE BTW OBJECT AND IMAGE PARAMETER OBJECT IMAGE INFORMATION MULTI SINGLE VIEWPOINT CHANGED CANNOT CHANGE CHANGE WITH TIME YES NO DIMENSIONS 3D 2D OWNERSHIP NO YES
  17. 17. SIZE DOES MATTER
  18. 18. DIFFERENTIATE
  19. 19. DIFFERENTIATE
  20. 20. DIFFERENTIATE
  21. 21. THE 2D – 3D PROBLEM 2D – Engineers 3D - Customers
  22. 22. THE 2D – 3D PROBLEM 2D – Engineers 3D - Customers
  23. 23. THE 2D – 3D PROBLEM 2D – Engineers 3D - Customers
  24. 24. THE 2D – 3D PROBLEM 2D – Engineers 3D - Customers
  25. 25. THE 2D – 3D PROBLEM 2D – Engineers 3D - Customers
  26. 26. EXPLAINING PROJECTION OBJECT IMAGE PROJECTION OBSERVER
  27. 27. EXPLAINING PROJECTION PROJECTION IS THE PROCESS OF OBTAINING _______ __________________________ FROM _______ __________________________
  28. 28. Common Elements of a Projection System • Center /Direction of Projection/ Station Point/Observers Eye • Projection Plane/Picture Plane • Object(s) to be projected • Projectors/Visual Rays/Lines of Sight
  29. 29. Classification of Projection
  30. 30. TYPES OF PROJECTION STATION POINT OBJECT PLANE OF PROJECTION PROJECTORS TYPE DISTANCE BTW SP & PP PROJECTORS PERSPECTIVE FINITE RADIATING FROM STATION POINT & INCLINED TO PROJECTION PLANE PARALLEL INFINITE PARALLEL TO EACH OTHER & PERPENDICULAR TO THE PLANE OF PROJECTION
  31. 31. TYPES OF PROJECTION
  32. 32. TYPES OF PROJECTION
  33. 33. WHAT PROJECTION IS THIS?
  34. 34. ISOMETRIC & ORTHOGRAPHIC PROJECTION ORTHOGRAPHIC ISOMETRIC MULTI VIEW SINGLE VIEW SHOWS THE OBJECT AS 3 DIFFERENT IMAGES AS VIEWED FROM FRONT,TOP & BACK SHOWS THE OBJECT AS ONE IMAGE WITH ALL THREE SIDES WITH ALL AXIS EQUALLY INCLINED CAN SHOW 2DIMENSIONS ONLY CAN SHOW 3DIMENSIONS ONLY
  35. 35. WHAT SHALL WE DO? ISOMETRIC TO ORTHOGRAPHIC ORTHOGRAPHIC TO ISOMETRIC
  36. 36. PRACTICE ISO TO ORTHO #1 FRONT VIEW SIDE VIEW TOP VIEW
  37. 37. PRACTICE ISO TO ORTHO #2
  38. 38. PRACTICE ISO TO ORTHO #3
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