How could I show tikz node names in the output (e.g. in a label)

Question

When editing figures with many nodes in TikZ (e.g. using tikzedt -- http://www.tikzedt.org/), it gets cumbersome to keep track of the names of nodes. Therefore, I would like to display their names in labels, when generating preliminary output.

after reading through the documentation and searching the internet, this was the closest I got, based on this post: How to extract the value from a pgfkeys style element

But I do not know how to refer to the name of the current node..

\documentclass{article}

\usepackage{tikz}

\begin{document}

\begin{tikzpicture}[
% does work:
    mystyle/.style={label={right:\pgfkeysvalueof{/pgf/minimum width}}}
% does not work:
%    mystyle/.style={label={right:\pgfkeysvalueof{/pgf/name}}}
  ]

  \node [mystyle, draw] (n1) {1};
\end{tikzpicture}

\end{document}

The generated output is shown below on the left, the desired output is shown on the right:

I would like the label to be defined in a style and not in the code of the every separate node, so that I do not need to edit the code for every node separately.

Thanks a lot in advance!

Answer 1

Do you want something like this?

Courtesy of Alenanno ...

\documentclass[border=10pt,multi,tikz]{standalone}
\begin{document}
\begin{tikzpicture}[
    mystyle/.style={%
      label={right:\pgfkeysvalueof{/pgf/minimum width}},
    },
   my style/.style={%
     append after command={% courtesy of Alenanno ref: https://tex.stackexchange.com/questions/287967/drawing-thin-line-around-a-multipart-tikz-shape#comment696552_287972
       \pgfextra{\node [right] at (\tikzlastnode.mid east) {\tikzlastnode};}
     },
   },
  ]
  \node (n1) [mystyle, draw] {1};
  \node (n2) [my style, draw] at (0,1) {2};
\end{tikzpicture}
\end{document}

EDIT

Following up on percusse's comment, you can see that

  \draw (0,0) -- (1,1) node (n2) [my style, draw] {2} -- (2,2) node (n3) [my style, draw]{2};

does what is wanted in terms of locating the nodes ...

but not what you might hope otherwise ....

Answer 2

That needs a rather deep hack that you might not want to get involved with. Mainly because the names are not set as a value but they are roughly speaking pointers to shape ids.

Instead you can use your own style such that you can skip parentheses and set the name and the label at the same time. And when you are done you basically remove the label part.

\begin{tikzpicture}[mystyle/.style={name = #1, label={right:#1}}]
  \node [mystyle=n1, draw] {1};
\end{tikzpicture}