[Tex/LaTex] Can’t find ocgbase.sty while using animate

animatemedia9miktex

I am trying to learn the animate package. While I was trying to compile some example codes, I always run into the problem that

**LaTex Error: File `ocgbase.sty' not found.**

I am using Miktex 2.9, and it installed the animate package automatically. I have Windows 7 Enterprise as OS.

Can any one tell me how I can fix the problem?

This is the file that I was trying to compile:

\documentclass{article}
\usepackage{animate}
\usepackage{media9}
\usepackage{graphicx}
\begin{filecontents}{timeline.txt}
::0x0 % coordinate system & y=e^x, repeated until last frame
::1 % one blue curve per frame
::2
::3
::4
::5
::6
::7
::8
\end{filecontents}
\begin{document}
    \begin{center}
        \animategraphics[
        label=taylor,
        controls, loop,
        timeline=timeline.txt
        ]{4}{exp_}{0}{8}
        \mediabutton[
        jsaction={
        if(anim[’taylor’].isPlaying)
            anim[’taylor’].pause();
        else
            anim[’taylor’].playFwd();
        }
        ]{\fbox{Play/Pause}}
    \end{center}
\end{document}

Best Answer

Installing package ocgx2 will fix the problem. (As ocgbase.sty is part of the ocgx2 package, as referenced here.)

Related Solutions

[Tex/LaTex] Animate Line / Path using Tikz and ‘animate’ package

Next code uses Jake's answer to How to animate a path or how to draw starting fraction of a complex but linear path? adapted to your path form A to B. It draws the start segment of a path with an arrow at the end and moving along the animation.

As soon as I can understand how to convert the animation to an animated gif, I'll upload the image. I know it's explained here, but I've never tried it.

\documentclass{beamer}
\usepackage{animate}
\usepackage{tikz}
\usetikzlibrary{calc,decorations,arrows,positioning,matrix}

% A simple empty decoration, that is used to ignore the last bit of the path
\pgfdeclaredecoration{ignore}{final}
{
\state{final}{}
}

\pgfdeclaremetadecoration{start}{initial}{
    \state{initial}[
        width={0pt},
        next state=middle
    ]
    {\decoration{moveto}}

    \state{middle}[
        width={\pgfmetadecoratedpathlength*\pgfdecorationsegmentlength},
        next state=final
    ]
    {\decoration{curveto}}

    \state{final}
    {\decoration{ignore}}
}

\tikzset{%
 start segment/.style={decoration={start,raise=2mm},decorate, segment length=#1},
}

\begin{document}

\begin{frame}
\begin{animateinline}[autoplay,loop]{3} 
\multiframe{10}{rPos=0.15+0.1}{ 
\begin{tikzpicture}[] 
\node (s){A}; \node (r) at (1,0) {}; 
\node (t) at (1,-2) {}; 
\node (v) at (0,-2) {B}; 
\draw[start segment=\rPos,->,black!70, line width=2.5] (s) -- (r.center) -- (t.center)--(v); \end{tikzpicture} 
} 
\end{animateinline} 
\end{frame} 
\end{document}

[Tex/LaTex] Typewriter Animation Using the ‘Animate’ Package

Character for character

The usage of the xstring macros is taken from the linked question.

The width of the text (in \Huge style) is saved to \mytextwidth.
As \StrLen counts from 0 to, in this case, 27, \multiframe needs to animate 28 frames, which is why \mylen+1 is calculated and saved to \frames.

This example uses the \multiframe macro because we can use variables (the other question used PGF's \foreach for this) and don't need to type every frame individually.

The \vphantom is needed because we start with no text (\icounter=0) and we need vertical height for. If you want to start with A use icounter=1+1 and re-replace \frames with \mylen in the \multiframe command.

\makebox makes everytime a box of the full text's width so that animate doesn't stretch the text. (We could have used also \StrRight, but this needs less calculation.)

Code (char for char)

\documentclass{article}
\usepackage[latin1]{inputenc}

\usepackage{animate}
\usepackage{calc}
\usepackage[active,tightpage]{preview}
\PreviewEnvironment{animateinline}

\usepackage{xstring}

\def\mytext{Alles Gute zum Geburtstag!}
\StrLen{\mytext}[\mylen]
\newlength{\mytextwidth}
\setlength{\mytextwidth}{\widthof{\Huge\mytext}}
\def\frames{\number\numexpr\mylen+1\relax} % \frames = \mylen + 1

\begin{document}


\begin{center}
\begin{animateinline}[autoplay,loop]{2}
  \multiframe{\frames}{icounter=0+1}{
    \makebox[\mytextwidth][l]{\Huge\vphantom{\mytext}\StrLeft{\mytext}{\icounter}}
  }
\end{animateinline}
\end{center}
\end{document}

Looks a lot like … (a.k.a. Output)

enter image description here

Word for word

Code

\documentclass{article}
\usepackage[latin1]{inputenc}

\usepackage{animate}
\usepackage{calc}
\usepackage[active,tightpage]{preview}
\PreviewEnvironment{animateinline}

\usepackage{xstring}

\def\mytext{Alles Gute zum Geburtstag!}
\StrCount{\mytext}{ }[\countSpaces]
\newlength{\mytextwidth}
\setlength{\mytextwidth}{\widthof{\Huge\mytext}}
\def\frames{\number\numexpr\countSpaces+2\relax} % \frames = \countSpaces + 2

\begin{document}
\begin{center}
\begin{animateinline}[autoplay,loop]{2}
  \multiframe{\frames}{icounter=0+1,icounterr=1+1}{%
    \makebox[\mytextwidth][l]{%
      \Huge\vphantom{\mytext}%
      \ifnum\icounter=0\relax\else
        \ifnum\icounterr=\frames\relax\mytext\else%
          \StrBefore[\icounter]{\mytext}{ }%
        \fi
      \fi
    }%
  }
\end{animateinline}
\end{center}
\end{document}