|ENVI User's Guide: Display Management|
ENVI provides the following tools for maintaining your display:
Use Mouse Button Descriptions to view the functions of the mouse buttons for the window in which the cursor is located. As the cursor is moved from window to window, the mouse button descriptions are updated. The displayed information includes the window type (e.g., display, plot), the function that has the cursor control (e.g., ROIs, Dynamic Overlay), and the actions for each mouse button (MB1: left mouse button, MB2: middle mouse button; MB3: right mouse button).
If the mouse buttons are not responding as you expect, display the mouse button descriptions to check which function is in control of the cursor.
To display the mouse button description dialog, select one of the following options:
For either case, the Mouse Button Descriptions dialog appears.
Use Display Information to view information about the display window in which the cursor is currently located. The information is updated as you move the cursor between the open display windows. The displayed information includes the display number, number of colors used, bands displayed, the type of stretch currently applied to each band, and the sizes and pixel ranges of the Image, Zoom, and Scroll windows.
From the ENVI main menu or the Image window, click on Window Display Information. The Display Information window appears.
Use Cursor Location/Value in any Image window to display the sample (horizontal, X) and line (vertical, Y) coordinates, the data value of the pixel under the cursor, and the geographic coordinates (for georeferenced data) of the pixel under the cursor.
Select one of the following options to open the Cursor Location/Value window:
Use Point Collection to collects points (both pixel locations and map locations) from display windows. The points display in a table in the ENVI Point Collection window.
From the ENVI main menu bar, select Window Point Collection, or from the Image window, select Tools Point Collection. For detailed information and instructions, see Collecting Points.
To resize all display windows to fit the available screen space, select either:
For example, if four displays are open, each display resizes to fill one-fourth of the available screen.
Use display linking to link multiple displays so that all actions in one display are mirrored in the others. Dynamic overlays are active when displays are linked (Working with Multiple Dynamic Overlays).
To link displays, select either:
Displays may also be linked using the Tools menu in any display or by using the right-click menus (see Linking Images).
To close all open image displays, select Window Close All Display Windows from the Image window menu bar or from the ENVI main menu bar.
To close all open plot windows, select Window Close All Plot Windows.
ENVI Online Help (August 12, 2005)