enlarge limits distorts rel axis cs
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#28 enlarge limits distorts rel axis cs
open-accepted
nobody
None
2
2011-01-31
2011-01-30
Anonymous
No
See the example below. What i expect is in the upper plot. The only difference between the plots is the value of enlarge x limits.
Just to explain why i cant use extra x ticks:
My real plot is a ybar interval and the area below the plot is so filled with ticks, that i want to place some important extra ticks above the plot. Hence i want a straight line up from some point defined in axis cs.
\documentclass{article}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\begin{axis}[enlarge x limits=false, extra description/.code={\draw[very thick] (axis cs:2.5,0) -- ++(rel axis cs:0,1.1) node[above,align=center,font=\small]{important};} ]
\addplot coordinates{
(0,1)
(1,2)
(2,3)
(3,4)
(4,5)};
\end{axis}
\end{tikzpicture}
\begin{tikzpicture}
\begin{axis}[enlarge x limits=true, extra description/.code={\draw[very thick] (axis cs:2.5,0) -- ++(rel axis cs:0,1.1) node[above,align=center,font=\small]{important};} ]
\addplot coordinates{
(0,1)
(1,2)
(2,3)
(3,4)
(4,5)};
\end{axis}
\end{tikzpicture}
\end{document}
Hello,
thank you for reporting the issue; I agree that it should be fixed.
The bug is caused by the rescaling of axes -- the "0" is an absolute coordinate, not a relative one. In other words "0" denotes something in the picture, not just "0pt horizontally".
Until the bug is fixed, it may help to use one of the tikz coordinate systems, for example (0pt,10cm) or something like that. If you really need precise measurements, you may use 'scale only axis,height=9cm' as well.
I hope that helps in the meantime.
Best regards
Christian
Using tikz coordinate systems also does not work which can be verified with the example :)
But using only axis cs works fine...you just have to adapt it everytime you change the y values (or copy&paste the line into another plot...).
BTW: I also posted this to de.comp.text.tex with another example/use case some days ago, just in case you need some test cases.
Greetings
Jan
thanks anyway for the great work, I love this package!
Jan (sorry for 2 comments)
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