Image Coordinate Display
The coordinates of the mouse pointer are displayed
in the top middle section of the
Image Bar. As shown below, this information provides
a complete
point measurement of the image at the location
of the mouse pointer.
The measurement is reported in both the native
image coordinates of column and row, as well as in
World Coordinates if the image is so
calibrated. See
Image Coordinate System for a full
discussion.
Coordinate Display Definitions
X
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The X coordinate of the pointer. If the image has
a World Coordinate System (WCS) calibration, this is Right
Ascension. Otherwise, this is the column coordinate.
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Y
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The Y coordinate of the pointer. If the image has
a World Coordinate System (WCS) calibration, this is Declination.
Otherwise, this is the row coordinate.
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Z
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The Pixel Value at the pointer coordinate. This is
a point measurement for the image at (X,Y). If an Intensity
Calibration exists, it is reported with its units. Otherwise, the Z
value is the raw pixel value and no units are listed.
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C
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The Column coordinate of the pointer.
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R
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The Row coordinate of the pointer.
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Whenever the mouse pointer passes over an image,
the pointer changes to the icon of the current command mode. 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.
Using the Image Cursor with World Coordinates
The
Image Cursor does not display world coordinates. But
it can be sent to an exact coordinate (pixel or world) using the
Go To Coordinates command.
Related Topics
Go To Coordinates
Image Coordinate System
Image Cursor
Image Bar
Image Windows
Point Measurements
Command Toolbars
Mira Pro x64 User's Guide, Copyright Ⓒ 2023 Mirametrics, Inc. All
Rights Reserved.
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