Adding extra hatch boundaries

You can edit a hatch pattern to add extra hatch boundaries to create islands or completely separate areas. All the hatch areas remain part of a single hatch object. Any edit performed on one area affects all the areas that are part of that hatching.

To add hatch boundaries to separate areas:

1. Double-click the hatch of the pattern you wish to copy. This displays the Hatch dialog.

   Suppose we have the following:

   

2. If required, change the pattern of the hatch using the Hatch dialog. Do not click OK on the dialog.
3. Shift+Click a wireframe object as the start of the new boundary. The Create Hatch toolbar is displayed.

   

4. Use the Create Hatch toolbar to select the boundary.

   The new composite curve is added as an additional boundary of the original hatch and has the same pattern and spacing:

   

5. Click OK on the Hatch dialog to save the changes.

Note: If you select a composite curve, the Create Hatch toolbar is not displayed and the composite curve is selected as the boundary.

To add hatch boundaries to create an island:

1. Double-click the hatch of the pattern as shown in the image below to display the Hatch dialog:

   

2. If required, change the pattern of the hatch using the Hatch dialog. Do not click OK.
3. Shift+Click the wireframe object that forms the boundary of the new island. The Create Hatch toolbar is displayed.

   

   Note: If a composite curve is selected, then the Create Hatch toolbar is not displayed and the composite curve is selected as the boundary.
4. Use the Create Hatch toolbar to select the boundary:

   

   In this example, the hatch is removed from the area enclosed by the composite curve, creating an island:

   

5. Click OK on the Hatch dialog to save the changes.

You can also extend the hatch from an island to an outer boundary, and remove the existing hatch:

Note: The boundary within or enclosing the existing hatch must be a composite curve.