The Import Control and Format Conversion panels have a common module for layer operations. There is provision for controlling which layers from an input archive file are read. The default action is to read all layers contained in the archive file, however this can be changed for physical data only with the Layer list, and the Layers Only and Skip Layers buttons. Layers can be mapped to other layer names with the layer alias list, when enabled by the Use Layer Alias button. The layer alias list can be edited with a pop-up editor.
The module contains the following controls:
The panel contains a listing of two columns: the left column for layer names, and the right column for the alias. There are three drop-down menus: File, Edit, and Help.
The File menu contains entries for saving the layer alias list to a disk file, and for reading in the entries from a disk file.
The Edit menu contains entries to add, delete, and edit individual aliases, and to select listing layer names in ``decimal'' form.
A row in the listing can be selected by clicking on it. The selected entry is acted on by the Delete and Edit commands.
The New command brings up a text input pop-up to solicit a name and alias pair (separated by space and/or an equal sign). Both entries must be valid layer names or encodings. Either entry can use the decimal or hex notation, or can be a CIF name, as appropriate for the type of file.
If the Decimal Form menu item is checked, the listing will use the decimal form for layer/datatype entries. Otherwise, the hex form will be displayed.