Why Pictorial? 

  • Normally we see objects as 3 Dimensional – having length, width and thickness (or width, depth and height).
  • In pictorial drafting 1 view can represent the object.
  • Pictorial views are frequently used for illustrative purposes in advertising. 
  • The majority of parts are too complicated to be described properly by a pictorial view, therefore 95% of drawings are done in Multiview Drawing or Orthographic Projection (such as – top, front, right side).  
  • With Computer Aided Drafting and Design it is now possible to draw in 3 dimensional and print in 2D in orthographic views.
 Pictorial

Pictorial

 Orthographic

Orthographic

Pictorial Types   

Typically pictorial drawings do not have hidden lines or center lines

 

Isometric

  • Is usually drawn with both sides at 30 degrees and 90 degree vertical lines.
  • Is a very fast method to make fairly realistic 3D drawings.
  • Gives a 2 Point Perspective look.
  • Good to use if there is circles (holes or cylinders) on the side faces. 

Oblique

  • Is usually drawn using the front view and the right side at 45 degrees and 90 degree vertical lines.
  • Is a very fast method to make fairly realistic 3D drawings – Cabinet Oblique tends to look more realistic.
  • Gives a 1 Point Perspective look.
  • Is very good to use if there are circles (holes or cylindrical shapes) on the front faces.
  • Can look awkward depending on the shape and difficult to do with circles on the sides.  

Perspective

  • Is the slowest method to draw but is the most realistic 3D drawing.
  • One Point Perspective is the fastest method of Perspective and is good for room perspectives.
  • Two Point Perspective takes longer but is the best method for house exteriors that look realistic.
  • Three Point Perspective is seldom used but can give some interesting perspectives depending on the placement of the vanishing points.