ROI (Rectangle)
Draw a rectangle
With "Add rectangle" 
selected, drag mouse from upper left to lower right on an image to create rectangle. The specified rectangle becomes a ROI (Region of Interest) and is used for target range of various data analysis and display range of pseudo color.
The following mouse operations are possible.
| Operation | Description | |
|---|---|---|
| Click on image with selected | Specify start point and end point of rectangle | |
Mouse drag vertex with  selected | Move vertex to change shape of rectangle. | |
Mouse drag rectangle with  selected | Move rectangle. | |
| Right-click | Set scale | You can set scale for a rectangle by specifying width and height of specified rectangle. Specified values are used for the scale bar displayed on the image. |
| Plot time signal | Displays the average waveform of the pixels within the specified rectangle. If you turn on "Rx" under "Signals" in the tree on the left side of the screen, the waveform will be displayed.  | |
| Export... | You can export rectangular position information to a "rdb" file. A rdb file can be imported by [ROI]-[Import regions...] on the right-click menu. | |
| Copy | Copy rectangle's location information. You can paste location information at same position by clicking [ROI]-[Paste regions] to another data in the same dataset. | |
| Rename | Delete rectangle. | |
| Delete | Delete rectangle. | |