How can I use a tikz folding library to create a box that does not have regular faces?. For instance, consider this sketch:

folding box for popcorn or gift

I need first to create a trapezoid face to use it with the folding library. This is my first attempt:



    \node{Edge A};
    \node{Edge B};
    \node{Edge C};
    \node{Edge D};


  \path pic [
    folding line length=4cm,
    transform shape,
    numbered faces
  {tetrahedron folding};

Please, ignore the tetrahedron name, I didn't realize how to define a new folding name. The code gives this picture:

Trapezoid face

How can I fix the connecting lines between the edges? Even if I compute the proper angles, I need two or more different folding lengths. In all the folding library examples I have seen, there is only one folding length.

  • 1
    Could you please describe more clearly what you want to achieve, and where you are stuck. A sketch would be fine. (Naively I would think that a cube is a better starting point for a popcorn bag than a tetrahedron, but this can be only clarified if the goal is clear.) Also please remove all the stuff that is not needed here, you only use \usetikzlibrary{folding}.)
    – user121799
    Jun 19, 2019 at 23:40
  • @marmot thank you for helping me to improve the question. I believe now is much more clear what I want to do.
    – alexis
    Jun 20, 2019 at 14:08


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