Wie kann ich die Opazität von tikz auf verschiedenen Slides in beamer anpassen?

Ich habe ein tikzpicture, das auf mehreren Slides eine unterschiedliche Opazität aufweisen soll.

Code, hier editierbar zum Übersetzen:

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\documentclass{beamer}
\usepackage{tikz}
\begin{document}
\begin{frame}
\begin{tikzpicture}
  \only<1>{\draw[blue,line width=2mm] (0,0) -- (3,0);}
  \only<2->{\draw[blue,line width=2mm,opacity=0.3] (0,0) -- (3,0);}
\end{tikzpicture}
\end{frame}
\end{document}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Ich möchte dies nun so gestalten, dass ich den Code nicht für jeden Slide kopieren und anpassen muss. Ausgehend von dieser Antwort auf tex.se habe ich dies wie folgt versucht:

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Code, hier editierbar zum Übersetzen:

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\documentclass{beamer}
\usepackage{tikz}
\begin{document}
\begin{frame}
\newcommand*{\myOpacity}{}
\only<1>{\renewcommand*{\myOpacity}{opacity=1}}
\only<2->{\renewcommand*{\myOpacity}{opacity=0.3}}
\begin{tikzpicture}
  \draw[blue,line width=2mm,\myOpacity] (0,0) -- (3,0);
\end{tikzpicture}
\end{frame}
\end{document}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Dies führt zur Fehlermeldung

Package pgfkeys Error: I do not know the key '/tikz/opacity=1' and I am going to ignore it. Perhaps you misspelled it. end{frame}

Wenn ich das ganze mit Farben, statt mit Opazität, mache, funktioniert es:

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Code, hier editierbar zum Übersetzen:

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\documentclass{beamer}
\usepackage{tikz}
\begin{document}
\begin{frame}
\newcommand*{\myColor}{}
\only<1>{\renewcommand*{\myColor}{red}}
\only<2->{\renewcommand*{\myColor}{blue}}
\begin{tikzpicture}
  \draw[blue,line width=2mm,\myColor] (0,0) -- (3,0);
\end{tikzpicture}
\end{frame}
\end{document}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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opacity tikz beamer

gefragt 18 Feb '16, 20:53

tom75
2.2k●27●79●84
Akzeptiert-Rate: 57%

bearbeitet 18 Feb '16, 20:54

Eine Antwort:

active answers älteste Antworten neueste Antworten Beliebteste Antworten

Ich habe von dieser TeX.SX-Antwort abgeschrieben, da sie sehr elegant ist. Man definiert dabei einen neuen TikZ-Key

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Code, hier editierbar zum Übersetzen:

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\tikzset{
  onslide/.code args={<#1>#2}{%
    \only<#1>{\pgfkeysalso{#2}}%
  }
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Dieser wird in den Optionen des Pfades verwendet und wendet diese Optionen nur auf der entsprechenden Folie an. Im Beispiel

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Code, hier editierbar zum Übersetzen:

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\documentclass{beamer}
\usepackage{tikz}
\tikzset{
  onslide/.code args={<#1>#2}{%
    \only<#1>{\pgfkeysalso{#2}}%
  }
}
\begin{document}
\begin{frame}
\begin{tikzpicture}
  \draw[blue,line width=2mm,onslide=<1>{opacity=1},onslide=<2->{opacity=0.3}] (0,0) -- (3,0);
\end{tikzpicture}
\end{frame}
\end{document}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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beantwortet 18 Feb '16, 21:02

Henri
15.7k●13●39●43
Akzeptiert-Rate: 46%

Vielen Dank. Das ist wesentlich eleganter.

(18 Feb '16, 21:39) tom75

Mein Versuch war fehlerhaft. Es funktioniert so:

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Code, hier editierbar zum Übersetzen:

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\documentclass{beamer}
\usepackage{tikz}
\begin{document}
\begin{frame}
\newcommand*{\myOpacity}{}
\only<1>{\renewcommand*{\myOpacity}{1}}
\only<2->{\renewcommand*{\myOpacity}{0.3}}
\begin{tikzpicture}
  \draw[blue,line width=2mm,opacity=\myOpacity] (0,0) -- (3,0);
\end{tikzpicture}
\end{frame}
\end{document}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Permanenter link

beantwortet 18 Feb '16, 21:38

tom75
2.2k●27●79●84
Akzeptiert-Rate: 57%

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opacity ×4

gestellte Frage: 18 Feb '16, 20:53

Frage wurde gesehen: 9,784 Mal

zuletzt geändert: 18 Feb '16, 21:39

Wie kann ich die Opazität von tikz auf verschiedenen Slides in beamer anpassen?

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