Assign Zone Item Aliases

Zone Data Item aliasing assigns an ordered list of data items to the original, or aliased item.  These items serve as a list of "equivalent" items that fill in if the original item is absent.  Alias items can function like the original zone data item in many place in Petra, including gridding, calculations, and on display in the Cross Section Module.  

To set up zone data item aliasing, select Zones>Zone Item Aliases... on the menu bar at the top of the Main Module.

Selecting the data item to alias (left), and setting "equivalent" data items for the data item (right)

Assign Zone Item Aliases

This tool simply selects the desired data item.   Select the zone and zone data item to store the alias definition, and select the "Assign Zone Aliases..." button to set the equivalent alias data items.  Note that data items that already have an alias definition assigned are highlighted in light blue on the Zone Items list..

Select Zone Item List

This tool sets the aliases for the selected data item.  Aliases should be specified in order of preference from highest priority at the top of the list to lowest priority at the bottom of the list.

Zone - This list shows the available zones in the project.  If a zone isn't showing up, make sure the "Show Listed Only" option on the Reorder Zone tool is off.

Zone Item List- This list shows every data item in the zone.   If a data item isn't showing up, make sure the "Show Listed Only" option on the Display Order for Data Items tool is off.

Selected Zone Items List - This list shows the aliased data items.  Use the < and > keys to add and subtract group names to the Selected Zone Items list, and the up and down arrow keys to change the order of an individual data item.

- This button adds the selected zone from the Zone Item list to the Selected Zone Items list.

- This button adds all zones from the Zone Item list to the Selected Zone Items list.

- This button removes the selected zone from the  Selected Zone Items list.

- This button removes all zones from th  Selected Zone Items list.

- These buttons change the order of the selected data item on the Selected Zone Items list.  Aliases should be specified in order of preference from highest priority at the top of the list to lowest priority at the bottom of the list.