This is quick demo that shows how to create a 3D sketch and use it for various purposes. In this case you don't need any fancy functions. Just simple and straight forward tools available to any CATIA user.
Find CAD Tutorials from popular design and manufacturing software such as AutoCAD, CATIA, Inventor, SolidWorks and Mastercam. Tricks and tips are available to aid the user in becoming more proficient in using the program of choice.