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Getting Started Tutorial

The following is a step by step tutorial on getting familiar with TLE.  It is recommended that you go through each step to get a good understanding of it's capabilities and how to use it efficiently.

Opening TLE

Once you have downloaded and installed TLE, open it by either selecting it in your Windows Start Menu (under Georeference Online -> TLE) or by double clicking the icon on your desktop.  Once opened, you should see:

Main TLE Window

Single/Dual mode

Click the 2nd icon on the tool bar to put TLE in Single mode.  Note that this toggles between the two modes.  Single mode is used when working with one hierarchy.  Dual mode is used to work with two side by side.  In both cases you can edit and rearrange the hierarchies by clicking and dragging and dropping.


Opening a database

Download a free database from this website.  For the tutorial purposes, please download the Geological Time Scale database by clicking here and saving it in a folder. Open it by clicking the icon next to "Select a database". You should see:



Expand All / Collapse All 

The the button Expand to expand all the nodes and the Collapse button to collapse (close) all the nodes.


Mouse over for details

It's not necessary to expand each column to view it's contents.  For a quick visual of the value in a column simply hover the mouse over it.



Use the search box the enter a search term.  It is case-insensitive and searches all columns for the search term.  All found rows are highlighted. Enter "jurassic", such as:



Adding, editing and deleting values

Click the value to edit it.  TLE goes into edit mode and a pencil icon appears to the left.  Click the pencil to return to selection mode.  All updates are applied to the database immediately.


To add a new node, right-click it's parent and select "Add sub-item".  To delete the node, right-click and select "Delete item".

Right-click on "Phanerozoic" and the following menu appears:

Right click


Dragging and dropping nodes

It's very easy to restructure a hierarchy in TLE.  Simply drag the node to where you wish it to appear.  There are two modes to be aware off:  Move mode and Copy mode.  As implied, Move mode deletes the original entry, while Copy mode does not.

To toggle between move & copy, click for Movemove and Copy for copy.

Working in Dual Mode

Click the single/dual mode icon Single / Dual and the right hand side appears.  Select another database and you can now drag and drop items between the two hierarchies.  Ensure that TLE is in the right Move/Copy mode for your task.  Note that, if the columns between the two databases are different, only columns that exist in both will be copied over and TLE will discard the rest (you receive a warning before this happens).


Creating a database from scratch

Click the new database icon New Database and fill in the column names.  Choose a folder and filename to save it to and click "Create".

 New Database

Fill out only the columns you need and leave the rest blank.



As you can see, TLE is a simple but powerful program for comparing and manipulating hierarchies.

Dual Example