Saving and loading sessions

Usefulness in teaching

As a teacher, it is often useful to plan a lesson in advance. Defining a whole set of matrices at the start of a lesson is boring and time consuming, so lintrans allows you to define a set of matrices beforehand, save the whole session to a file, and then open that saved session for the lesson. This session file saves all the matrices you’ve defined, the display settings, position of the input vector, as well as the polygon if you’ve defined one.

When you open a previously saved session, you can view all the matrices you had defined by clicking the Show defined matrices button. However, I would recommend writing down some separate notes to remind you what these matrices were supposed to be for.

Saving

To save a session file, first define whatever matrices you want to, and then go to File > Save or press Ctrl+S. Saving works like any other software. Just give it a name, and it will save the session to a custom .lt file. If you have already saved but now want to use a different file name, you can go to File > Save as... or press Ctrl+Shift+S.

You can save the file anywhere on your computer, but lintrans creates a special folder just for your lintrans session save files, and it will always default to this folder when saving or opening a file, so I highly recommend using it.

If you have saved a session to a file, and then changed something that could be saved (maybe you defined a new matrix or changed the polygon) without having saved since that change, then you will be prompted to save your session before exiting. You can exit and discard your changes if you want to, but I would recommend saving.

You will also be prompted to save the session when exiting lintrans even if you hadn’t already saved it somewhere.

Loading

To open a previously saved session, go to File > Open or press Ctrl+O. You will be shown all the lintrans session save files in the special folder, and you can just double click on the one you want. If you saved your session elsewhere, then you can simply navigate to wherever you saved it just like you would with any other file.