Results 1 to 13 of 13
  1. #1
    Join Date
    Dec 2008
    SEA, WA
    Thanked 194 Times in 160 Posts

    I didn't know this about ellipses

    I've was studying from "Creative Illustration for Artists and Illustrators" by Ernest W. Watson, when I came upon something interesting.

    To quote the author:

    " Always we must remember that the long diameter of the ellipse is not a structural line of the object: it is merely an imaginary line - useful only for drawing purposes. It is never the same as the geometric diameter of the circle which the ellipse represents "


    " Many beginners, especially those who are mechanically minded, are quite surprised to be told that the diameter of a circle and the long diameter of its elliptical appearance are never the same lines; and to discover that the long diameter of the ellipse is always in front of (ie nearer the spectator) the circle's structural diameter. "

    I've always been under the assumption that the true diameter of the circle naturally ended up as the long-side-line of the ellipse. Anyways, I'm sure that this only information for the beginners (like myself), but I figured it couldn't hurt to post it.

    I looked back through a lot of my perspective studies of ellipses, and I've noticed a lot of mistakes due to my lack of understanding in this regard.

    PS: The image attached shows an example of what I am talking about.

    Attached Images Attached Images  
    -I often post from my phone; so please excuse the typos
    Reply With Quote Reply With Quote

  2. The Following User Says Thank You to Syle For This Useful Post:

Members who have read this thread: 0

There are no members to list at the moment.


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  • 424,149 Artists
  • 3,599,276 Artist Posts
  • 32,941 Sketchbooks
  • 54 New Art Jobs
Art Workshop Discount Inside

Developed Actively by
SpringOfSea's Sketchbook