I am a beginner, drawing with tikz is a bit difficult for me. Is there an auxiliary drawing tool that is suitable for beginners? Especially drawing three-dimensional graphics.

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    Welcome to TeX.SE! Please look at this post: tex.stackexchange.com/questions/26972/… – CarLaTeX Jul 21 at 5:20
  • I found this useful: tikzedt.org. It is not complete and some advanced functionality sometimes do not work, but it is perfect to experiment and go back and forth between graphical and code sides. – geguze Jul 21 at 8:51