CADDIT CAD CAM CNC Software - download AutoCAD compatible design software progeCAD Alibre T-FLEX and more
CADDIT Website Knowledge Base Search:

progeCAD Help

Welcome to progeCAD
Working with progeCAD
Command Reference
CAD System Variables
Programming progeCAD
Full Index (caution - 400kb)

Further Links:

Download progeCAD
Register progeCAD


T-FLEX PLM tutorial (PDF)
progeCAD IntelliCAD and AutoCAD training 
CATIA 2D 3D design tutorial
Alibre CAD/CAM basic tutorial


Educational CAD Software Solutions
Python scripting for DOS and Windows
Other free software downloads
CADDIT CAD CAM Forum Australia

Drawing ellipses

The default method for drawing an ellipse is to specify the endpoints of one axis of the ellipse, and then specify a distance representing half the length of the second axis. The endpoints of the first axis determine the orientation of the ellipse. The longer axis of the ellipse is called the major axis, and the shorter one is the minor axis. The order in which you define the axes does not matter. The program determines the major and minor axes based on their relative lengths. You can draw ellipses using any of the following methods:

  • Axis-axis ()
  • Axis-rotation ()
  • Center-axis ()
  • Center-rotation ()

To draw an ellipse by specifying the axis endpoints

  1. Do one of the following:
    • Choose Insert > Ellipse.
    • On the Draw 2D toolbar, click the Ellipse Axis-Axis tool ().
    • Type ellipse and then press Enter.
  2. Specify the first endpoint.
  3. Specify the second endpoint.
  4. Specify the half-length of the other axis.


First axis endpoint (A), second axis endpoint (B), and half-length of other axis (C).

CADDIT® is a registered trademark in Australia. All Rights Reserved. Comments concerning the content of this site should be addressed to our webmaster. progeCAD is a trademark of ProgeCAD srl. Autodesk® and AutoCAD® are both registered trademarks or trademarks of a third party, and used only for comparison purposes. All other trademarks, trade names or company names referenced herein are used for identification only and are the property of their respective owners. Legal and Terms of Use. Google. Find us on Google+.