tikz: curley brace in a non-parallel plane

by jakun   Last Updated July 12, 2019 12:23 PM - source

I am trying to denote some lengthes in a three dimensional tikz figure. But the result looks weird because the curley braces are not properly transformed. The transform shape option (which does the trick for the labels) has no effect on the braces. I have also tried to replace the brces by arrows but that is not much better because the arrow tips are not transformed either.

How can I draw curley braces or arrows in a plane which is not parallel to the paper?




    % changing the axis to point in the directions that I am used to from school:
    % x-axis pointing toward the reader,
    % y-axis pointing right and
    % z-axis pointing up
    % using the same lengthes as TikZ' default settings specified in it's documentation on page 134
        x={(-3.85mm, -3.85mm)},
        y={(1cm, 0cm)},
        z={(0cm, 1cm)},


    \draw[gray, ->] (0,0,0) -- (\axislength,0,0) node[below left] {$x$};
    \draw[gray, ->] (0,0,0) -- (0,\axislength,0) node[right] {$y$};
    \draw[gray, ->] (0,0,0) -- (0,0,\axislength) node[above] {$z$};

    \begin{scope}[canvas is xz plane at y=0, transform shape]
        \draw (0,0) rectangle ++(-\width, \height);
        \draw[decorate,decoration={brace}] (\distance, 0) -- node[right]{\mirror{$h$}} ++(0, \height);
        \draw[decorate,decoration={brace}] (0,0) ++(0, \height) ++(0, \distance) -- node[above]{\mirror{$w$}} ++(-\width, 0);
%       \draw[<->] (0,0) ++(.5em, 0) -- node[right]{\mirror{$h$}} ++(0, \height);
%       \draw[<->] (0,0) ++(0, \height) ++(0, .5em) -- node[above]{\mirror{$w$}} ++(-\width, 0);

enter image description here

Tags : tikz-pgf tikz-3d

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