The philosophy of this tutorial is to get familiarized with GiD: how to change the views of the model, how to manage the Layers, and other basic features. Some of this these features are both in the preprocessing and the postprocessing parts of GiD, although the examples shown are from the preprocessing one.
Many times, the text will make reference refer to 'entities'. Almost all the options explained in this tutorial are valid both for geometrical and mesh entities, although the examples used are often geometrical ones.
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