Point Sampling
A Point Sample refers to an image coordinate and value at a specific location. Mira performs real-time point sampling of images using the "live" mouse pointer. These samples are reported in the Image Coordinate Display section of the Image Toolbar.
Whenever the mouse pointer passes over an image,
the pointer changes to the icon of the current command mode.
Window. For example, if Line Profile Move Mode is active, the pointer changes
to 
. If no command mode is
active, the Image
Window is in "Roam Mode" and the mouse pointer becomes a
crosshair. In Roam Mode, no specific action is attached to the
primary mouse button.
A point sample is reported in all command modes, including those belonging to a Window Toolbar. Even thought the mouse pointer may change to that of the command mode, the pointer still has a "hot point", usually at its center, in which a point sample is continuously reported.
Measuring Images, Point Measurements, Image Window, Image Coordinate Display, Go To Coordinate, Edit Pixel Values, Set Pixel Value, Window Toolbars