The Dual Elliptical Ring tool is similar to the Elliptical Ring tool except that the inner and outer ellipses do not have to be the same shape. Here’s an example.
The first ellipse (which can be either the inner ellipse or the outer ellipse) is defined in exactly the same way as the initial ellipse in an Elliptical Ring. You define the bounding rectangle of the ellipse using one of these construction methods:
- Select the center first and then one of the corners of the bounding rectangle
- Select the opposite corners of the bounding rectangle
- Select one of the corners of the bounding rectangle and then the center
- Select the horizontal axis of the ellipse and then one of the corners of its bounding rectangle
- Select the vertical axis of the ellipse and then one of the corners of the bounding rectangle
- Select the center of the ellipse, the end of its horizontal axis (using the mark button), and then one of the corners of the bounding rectangle
- Select the center of the ellipse, the end of its vertical axis (mark button), and then one of the corners of the bounding rectangle
Once the initial ellipse is created drag outward to create the outer ellipse or inward to create the inner ellipse. You can constrain the placement of the second point horizontally or vertically using the Drag Constraint button
Here’s an example of dual ellipse ring construction:
Finally, the first option button lets you set the Snapping Points. These are invisible points on both the inner and outer ellipses that allow you to snap other paths (for instance, Line Segments) directly to those points. See Snapping for more information.