Draw Isometric Circles

Represent circles on isometric planes using ellipses.

If you are drawing on isometric planes, use an ellipse to represent a circle viewed from an oblique angle. The easiest way to draw an ellipse with the correct shape is to use the Isocircle option of ELLIPSE. The Isocircle option is available only when the Style option of Snap mode is set to Isometric (see DSETTINGS).

NoteTo represent concentric circles, draw another ellipse with the same center rather than offsetting the original ellipse. Offsetting produces an oval-shaped spline that does not represent foreshortened distances as you would expect.
Procedures
To draw an isometric circle
  1. Click Tools menu Drafting Settings.At the command prompt, enter dsettings.
  2. In the Drafting Settings dialog box, Snap and Grid tab, select Isometric Snap.
  3. Click OK.
  4. Click Draw Ellipse Axis, End.At the command prompt, enter ellipse.
  5. Enter i (Isocircle).
  6. Specify the center of the circle.
  7. Specify the radius or diameter of the circle.
Commands
ELLIPSE

Creates an ellipse or an elliptical arc.

ISOPLANE

Specifies the current isometric plane.