7 DESIGN & TECHNOLOGY

PICTORIAL DRAWING

WHAT IS IT?
Pictorial Sketches
• A Pictorial drawing is a view of an object as it would be
seen by an observer who looks at the object...
Oblique Drawing
• Cavalier Oblique drawings, all lines (including
receding lines) are made to their true length.

45°
Oblique Drawing
• In Cabinet Oblique drawings, the receding lines
are shortened by ½ their true length to
compensate for d...
Example of an Oblique
Drawing
Example of an Oblique
Drawing
Example of an Oblique
Drawing
Isometric Drawings
• Isometric drawing is method of graphic
representation of 3D objects. The technique is
intended to com...
Example of an Isometric
Drawing
Example of an Isometric
Drawing
Example of an Isometric
Drawing
Drawing Steps – Isometric
Drawing
•

Draw border

•

Draw title block

•

Draw the horizontal baseline

•

Draw in 30° lin...
Perspective Drawing
• In Perspective Drawing objects are drawn smaller as
their distance from the observer increases. The ...
Example of a Perspective
Drawing
Example of a Perspective
Drawing
Example of a Perspective
Drawing
Drawing Steps – Perspective
Drawing
•

Draw border

•

Draw title block

•

Draw the horizon line

•

Place in 1,2 or 3 va...
Acknowledgements
• Saskatchewan Education Drafting 10
http://www.saskschools.ca/curr_content/Drafting10
• Wikipedia
http:/...
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3D Sketching techniques

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3D Sketching techniques

  1. 1. 7 DESIGN & TECHNOLOGY PICTORIAL DRAWING WHAT IS IT?
  2. 2. Pictorial Sketches • A Pictorial drawing is a view of an object as it would be seen by an observer who looks at the object either in a chosen direction or from a selected point of view. • Pictorial drawings often are more readily made and more clearly understood than are front, top, and side views of an object.
  3. 3. Oblique Drawing • Cavalier Oblique drawings, all lines (including receding lines) are made to their true length. 45°
  4. 4. Oblique Drawing • In Cabinet Oblique drawings, the receding lines are shortened by ½ their true length to compensate for distortion and to approximate more closely what the human eye would see. Shorten by ½ 45°
  5. 5. Example of an Oblique Drawing
  6. 6. Example of an Oblique Drawing
  7. 7. Example of an Oblique Drawing
  8. 8. Isometric Drawings • Isometric drawing is method of graphic representation of 3D objects. The technique is intended to combine the illusion of depth, with the undistorted presentation of the object's principal dimensions. 30° 30°
  9. 9. Example of an Isometric Drawing
  10. 10. Example of an Isometric Drawing
  11. 11. Example of an Isometric Drawing
  12. 12. Drawing Steps – Isometric Drawing • Draw border • Draw title block • Draw the horizontal baseline • Draw in 30° lines from a point on the baseline • Draw in construction box • Use construction lines to draw in part details then darken lines
  13. 13. Perspective Drawing • In Perspective Drawing objects are drawn smaller as their distance from the observer increases. The lines of an object are aligned to 1,2 or 3 vanishing points. VP VP
  14. 14. Example of a Perspective Drawing
  15. 15. Example of a Perspective Drawing
  16. 16. Example of a Perspective Drawing
  17. 17. Drawing Steps – Perspective Drawing • Draw border • Draw title block • Draw the horizon line • Place in 1,2 or 3 vanishing points • Draw in construction box with the edges leading to the vanishing points • Use construction lines to draw in part details then darken lines
  18. 18. Acknowledgements • Saskatchewan Education Drafting 10 http://www.saskschools.ca/curr_content/Drafting10 • Wikipedia http://en.wikipedia.org/wiki/Isometric_projection • Britannica http://www.britannica.com/eb/article9042956/isometric-drawing

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