How to use pixel information

The pixel information window allows you to interactively inspect class names, IDs or values in multiple raster, polygon, segment and point maps with the same or a compatible coordinate system. When one map is displayed in a map window, the pixel information window is capable of retrieving values of all maps added to the pixel info window, at the position of the mouse pointer in the map window. In the same way, when you have an analog paper map on the digitizer and you performed MapReference, the pixel information window is capable of retrieving values of all maps added to the pixel info window, at the position of the digitizer cursor.

General method to use Pixel Information:

  1. Open the pixel info window by choosing the Open Pixel Information command on the File menu of the Main window or a map window. You can also click the Pixel Information button in the standard toolbar of the Main window.
  2. Add maps to the pixel information window by choosing the Add Map command on the File menu of the pixel info window. You can also drag maps from the Catalog into the pixel info window. Raster maps as well as polygon, segment and point maps can be added to the pixel information window. If an attribute table is linked to a map or to the domain of a map, the attribute information is shown as well. You can check whether an attribute table is linked to a map or a domain in the Properties dialog box of the map or the domain.
  3. Locate the mouse pointer on a map or locate the digitizer cursor on a reference paper map on the digitizer.

To hide or show maps or attribute columns in the pixel info window:

The Customize Pixel Info dialog box appears which displays a list of maps, tables and columns. By clicking in this list, maps and columns can be (de-)selected; selected items appear highlighted and will be shown in the pixel info window.

Detailed pixel info by using the keyboard:

To move the mouse pointer in the map window and see the result in the Pixel info window, you can use the Arrow keys on the keyboard to move 1 screen pixel, or use the Ctrl+Arrow keys on the keyboard to move 10 screen pixels.

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