alt text

Ich habe hier eine Tabelle mit Punktkoordinaten.

Öffne in Overleaf
1 0.00 3.60
2 1.00 3.60
3 1.50 4.47
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Frage: Wenn ich später die Punkte in irgendeiner Reihenfolge verbinden will, z.B. 1-3-2, wie mache ich das am besten?

Ich habe

visualization depends on={value \thisrowno{0} \as \Label}, every node near coord/.append style={name={P-\Label}}

und dann \draw[] (P-1) -- (P-3);

versucht, das klappte nicht; ist auch vermutlich nicht 100%ig optimal, da so die nodes, nicht die Koordinaten, verbunden würden.

Öffne in Overleaf
Code, hier editierbar zum Übersetzen:
\documentclass[margin=5mm, tikz]{standalone}
%\documentclass{article}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}%[scale=1.875]
\begin{axis}[
hide axis,
x = 15mm, y=15mm
]
\addplot+ [only marks,
mark options={red},
mark size=1.125pt,
% Bezeichnung
font=\scriptsize\ttfamily, % \tiny % \scriptsize
visualization depends on={value \thisrowno{0} \as \Label},
nodes near coords={\Label},
every node near coord/.append style={text=black},
]
table[x index=1, y index=2] {%
1 0.00 3.60
2 1.00 3.60
3 1.50 4.47
};
\end{axis}
\end{tikzpicture}
\end{document}
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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gefragt 26 Aug '18, 12:42

cis's gravatar image

cis
9.6k102460491
Akzeptiert-Rate: 29%

bearbeitet 26 Aug '18, 12:44

Gibt es einen Grund, warum Du nicht einfach die Reihenfolge in der Tabelle änderst?

(26 Aug '18, 18:24) Community

Weil die Linienzüge meist mehrfach die Punkte verwenden; siehe Bsp. in meiner Antwort.

(26 Aug '18, 20:02) cis

Es geht, indem man name=Name-\coordindex oder name=#1-\coordindex verwendet.

Ein mögliches Beispiel:

Öffne in Overleaf
Code, hier editierbar zum Übersetzen:
\documentclass[margin=5mm, tikz]{standalone}
\usepackage{pgfplots}
\pgfplotsset{compat=1.13,
name nodes near coords/.style={
every node near coord/.append style={
name=#1-\coordindex,
% alias=#1-last,
anchor=center, inner sep=0pt, outer sep=0.5pt,
},
},
name nodes near coords/.default=coordnode
}
\begin{document}
\begin{tikzpicture}[
BeschriftungsStyle/.style={text=black,
font=\scriptsize\ttfamily, % \tiny % \scriptsize
}
]
\begin{axis}[hide axis,
x = 15mm, y=15mm,
nodes near coords,
]
% Linienzug
\addplot+ [name nodes near coords=P,
nodes near coords={}, % Leere node setzen
only marks,
mark options={red},
mark size=1.125pt,
] table[header=false, x index=2, y index=3] {%
P1 1 0.00 3.60
P2 2 1.00 3.60
P3 3 0.50 4.47
P4 4 -0.50 4.47
P5 5 -1.00 3.60
P6 6 -0.50 2.73
 
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beantwortet 26 Aug '18, 20:01

cis's gravatar image

cis
9.6k102460491
Akzeptiert-Rate: 29%

bearbeitet 26 Aug '18, 20:02

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gestellte Frage: 26 Aug '18, 12:42

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zuletzt geändert: 26 Aug '18, 20:03