341
Editing a User Defined Mask
Access the mask edit
window
1. From the button bar, click Masks, and select the Masks tab.
2. Click the User Mask button.
3. Click the Edit User Mask button. The instrument displays
the Mask Edit control window.
Enable the mask edit
controls
4. Click the Controls button to open the mask edit controls
window on the right side of the screen. This provides the
maximum area to display the mask, making editing easier.
Select a segment
5. Click the Segment field and use the arrow buttons,
multipurpose knob, or keypad to select a segment to edit.
The selected (active) segment is highlighted in red. Each
mask can have up to 16 segments.
Select a vertex
6. Click the Vertex field and use the arrow buttons,
multipurpose knob, or keypad to select the vertex to edit.
The active vertex is indicated with an X on the template
segment. Each segment can have up to 50 vertices.
Move a vertex
7. Click the Horizontal field and use the multipurpose knob or
keypad to change the selected vertex horizontal position.
8. Click the Vertical field and use the multipurpose knob or
keypad to change the selected vertex vertical position.
Add or delete a vertex
9. To add a vertex, select the closest vertex that is clockwise
from where you want to place a new vertex. Click Add to
add a vertex midway between the selected vertex and the
next counterclockwise vertex.
10. To delete a vertex, enter or select the vertex number. Then
click Delete to delete the selected vertex. The remaining
vertices located counterclockwise from the deleted vertex
are renumbered.
Save the user mask to
disk
11. See Saving a User Mask to Disk procedure on page 342.
You do not need to save the edited user mask to disk, as the
instrument retains the current user mask in nonvolatile memory.
However, if you plan to create a number of user masks, you will
need to store the user masks on disk or the hard drive, as the
instrument can only load one user mask at a time.
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