The Cursor Mode radio buttons can be used to enable and disable the cursor. This area will correctly show whether the cursor is currently enabled or disabled, even if it was changed by the DCP PACE program.
The Cursor Colour option menu can be used to modify the cursor colour. If the cursor colour is changed using the PACE program DCP, or by some other means, the displayed colour on this panel may be incorrect.
The four pairs of text fields display the cursor coordinates in different coordinate systems. It is possible to modify the coordinates displayed in any of these text fields in order to move the cursor. This means it is possible to move the cursor in any of the supported coordinate schemes.
The first coordinate system is Display coordinates. This is measured in terms of the size of the image planes in memory in ImageWorks (as determined in VDINIT or the ImageWorks Configuration Panel) which may be larger than the window in which the imagery is being displayed. The location is displayed as a pixel / line pair.
The second coordinate system is Database coordinates. This representation is based on the assumption that the currently selected file has been loaded based on the most recently selected input window in the Image or Graphic load panels. If no input window has been selected, the entire database is assumed. The result is the pixel and line that the cursor points to in the currently selected database.
The third pair of text fields displays the cursor coordinates in geocoded coordinates according to the geocoding associated with the Image, Graphic, and Vector layers currently being displayed. If all the data layers being displayed do not match, no coordinates will be displayed. If the loaded data has no geocoded locations associated with it, then the geocoded location will be shown in pixels and lines, and will normally be the same as the Database coordinates. The units displayed to the right of the text fields are a clue to the geocoding type.
The last coordinate system displayed is Geographic (Lat/Long). If sufficient geocoding information is available for the viewed data layers to project the cursor location into Geographic coordinates, it will be displayed. Typically UTM data with a valid zone number must be provided for this transformation to take place.
See Also: Control Panel, DCP, Colour Preference