The Loop tool extends the capabilities of automatic data comparison to include two or more map layers.
You can set up the effect to cycle forward or backward through the loop starting with the top-most layer and ending with the lower-most layer on the Maps tab. Effectively, with each step in the loop, the next layer will be rendered as if it is the top-most.
Sequence
To cycle forward through the layers, click Forward. To cycle back through the layers, click Backward.
Speed
To set the rate of the image frames, in the available box, type or select the number of frames per second you want to use.
Actual speed
Displays the actual rate of the frame change.
Control
The following table describes the buttons that control the loop.
| Button | Command name | Description |
|---|---|---|
 |
Play | Start the loop |
 |
Stop | Stop the loop |
 |
Next | Go to the next frame in the loop |
Continuous loop
To cycle continuously through each layer in the loop, select the Continuous loop check box. If you only want to cycle through the loop once, leave the check box clear.
Current top layer
Displays the name of the layer that is rendered last and therefore on top of all others in the viewer.
To use the Loop tool
- On the Maps tab of the Focus window, make sure you have at least three layers selected for which you want to view the effect.
- In the Visualization Tools window, click the Loop tab.
- Beside Sequence, click an option to select the direction of the loop: Forward or Backward.
- In the Speed box, type or select a value for the rate of flicker, as necessary.
- Click Play.