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  ______    ______  __    __     ___      _____   
 /_____//  /_   _// \ \\ / //   / _ \\   / ____|| 
 `____ `    -| ||-   \ \/ //   / //\ \\ / //---`' 
 /___//     _| ||_    \  //   |  ___  ||\ \\___   
 `__ `     /_____//    \//    |_||  |_|| \_____|| 
 /_//      `-----`      `     `-`   `-`   `----`  
 `-`

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Text this: Geometric design of flat layout of 3D folded structures