Ellipse EllipseThe Ellipse function is used to create ellipses using sketching, data entry, or a combination of both.
Ellipse supports Dynamic Drawing which allows you to use data entry and/or sketching to create ellipses. After sketching an ellipse, it becomes the active entity. The active entity displays in the current Entity color, but displays with a greater line thickness to make it easier to identify. The active entity can then be modified using data entry. The benefit of Dynamic Drawing is that you can quickly sketch an ellipse to get the approximate result and then use data entry to update it to exact coordinate values as needed.
Active Entity
Ellipse supports the use of the snap increment when using the mouse to select the origin location. The snap increment allows you to get precise results when using mouse selection and helps to reduce data entry modifications.
To learn more, view Snap Increment.
To open Ellipse, do one of the following:
In the Other menu, click Ellipse.
On the CAD toolbar,
click the down arrow and click the icon.
Right-click anywhere in the graphics area, point to CAD, Other, and click Ellipse.
The parameters display in the 
Data Entry tab
of the Data-CAM Tree Manager.
Major Axis - sets the X-axis dimension of the ellipse.
Minor Axis - sets the Y-axis dimension of the ellipse.
Start Angle - sets the angle, from the X-axis, at which the ellipse begins.
End Angle - sets the angle, from the X-axis, at which the ellipse ends.
Break into Arcs
Select the check box to create the ellipse with multiple entities based
on the Resolution value.
Clear the check box to create a single entity ellipse.
Resolution - defines the number of arc segments used to create the ellipse.
The Origin determines the coordinate location of the center of the ellipse using the XYZ coordinates of the active UCS. This value can be set using data entry or mouse selection. When using mouse selection, the snap increment applies.
X - is the X-axis location of the entity origin.
Y - is the Y-axis location of the entity origin.
Z - is the Z-axis location of the entity origin.
IMPORTANT: The XYZ coordinates are in reference to the Active UCS, or user coordinate system.
1 Open the function and click a snap point or anywhere in the graphics area to set the origin of the ellipse.
You can modify the snap increment value or turn it off when selecting the origin location using the mouse.
2 This is now the active entity, which means that it is not fully defined.
IMPORTANT: After sketching an ellipse, it changes from the Preview color to the current Entity color, but displays with a greater line thickness (than existing entities) to show that it is the Active entity. You can then modify the Data Entry parameters to update the active entity.
3 Dynamic Drawing allows you to update the Data Entry parameters to modify the active ellipse.
After updating the Data Entry parameters, to finish the active entity, you can click OK or start sketching the next ellipse.
When you don't need to update the Data Entry parameters, you can just click to start the next ellipse.
NOTE: There are many ways to finish the active entity: click OK, press Spacebar, or click in the graphics area to start the next rectangle.
4 Repeat this process for all ellipses that you want to create.
5 To close the function, click Cancel.
You can also create ellipses using only data entry.
1 Open the function and define all Data Entry parameters needed for the first ellipse.
2 Click OK to create the ellipse.
3 Update the Data Entry parameters, and click OK to create the next ellipse.
4 Repeat this process for as many ellipses as needed.
5 To close the function, click Cancel.