| iTool User's Guide: Adding Annotations |

## Additional Axes

By default, X, Y, and (for 3-D data spaces) Z axes are displayed in the iTool window. The display of these axes is controlled by property sheets for the axes container and for individual axes (see Axes). Additional X, Y or Z axes can be added to most data spaces to make it easier to identify characteristics.

To add an additional axis to your data space:

1. Select the data space.

2. Select Insert Axis.

3. Choose from the following options:

- X axis

- Y axis

- Z axis

Use the mouse to position the new axis, and double-click the axis to display the axis property sheet.

Note For a 3-D visualization, you can use the Shift + Ctrl to translate an axis in the opposite direction. This will be shown in the Status message when an axis is selected for translation. You can also use the arrow keys to change axes placement direction.

IDL Online Help (March 01, 2006)