[Tex/LaTex] Tikz node labels more below than below


I am using the tikz package. Is there a typografical/semantic/other reason why

\draw(2,0.6) node[\label=below:$b_1$]{} -- (2,4);

produces a label more below than

\draw(2,0.6) node[below]{$b_1$};

For example, try the following code to notice the difference.

\draw (0,0) -- (1,0);
\draw (2,0.6) node[below]{$b_1$};

\draw (0,0) -- (1,0);
\draw (2,0.6) node[label=below:$b_1$]{};

Best Answer

In the first case the one node is placed below the point with content $b_1$. In the second case a node without content (but still with positive height) is placed at the point and a second node with $b_1$ is placed below it.

Maybe a picture helps:

    \fill (0,0) circle (0.05) node[below,draw]{$b_1$};
    \fill (1,0) circle (0.05) node[label=below:$b_1$,draw]{};


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