# [Jlatexmath] Dynamic/animated LaTeX typesetting

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## [Jlatexmath] Dynamic/animated LaTeX typesetting

 Hi everybody, in my program I have to typeset a LaTeX expression containing a dynamically changing string resp. number. So for simplicity let's just take $\frac{a}{b}$ and a and b are to be substituted dynamically by some numbers. I want to produce an animation, i.e. the equation rendering has to be done as fast as possible. As an example think of an animated enumeration of the rational numbers ... I don't want to post my concrete code here because it's rather complex. My current naive solution is to substitute a and b in the string "\frac{a}{b}" and then create a new TexFormula and a new TexIcon out of if. By inspecting the source code of JLaTeXMath I found the dynamic-package and the \jlmdynamic command which sounds like the solution to my problem, i.e. precompile the formula with some dynamic nodes in it and then refresh only the dynamic nodes in it during the animation. Unfortunately I have not been able to figure out how to use the \jlmdynamic-api. Can someone please provide a minimal example? Maybe with the simple \frac{a}{b} example (because \frac{}{} is static and there are two dynamic nodes a,b (as in my project) and not only one). Kind regards, Christian _______________________________________________ jlatexmath mailing list [hidden email] http://lists.scilab.org/mailman/listinfo/jlatexmath
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## Re: [Jlatexmath] Dynamic/animated LaTeX typesetting

 I would be interested to hear what is said about this too, as my project also involves dynamic input.  To be fair, I have used the 'naive' solution described, and it has worked fine.  If there's a better way I'd like to know. Dallan On Thu, Sep 6, 2012 at 3:02 AM, Christian Stussak <[hidden email]> wrote: > Hi everybody, > > in my program I have to typeset a LaTeX expression containing a dynamically > changing string resp. number. So for simplicity let's just take > $\frac{a}{b}$ and a and b are to be substituted dynamically by some numbers. > I want to produce an animation, i.e. the equation rendering has to be done > as fast as possible. As an example think of an animated enumeration of the > rational numbers ... I don't want to post my concrete code here because it's > rather complex. > > My current naive solution is to substitute a and b in the string > "\frac{a}{b}" and then create a new TexFormula and a new TexIcon out of if. > By inspecting the source code of JLaTeXMath I found the dynamic-package and > the \jlmdynamic command which sounds like the solution to my problem, i.e. > precompile the formula with some dynamic nodes in it and then refresh only > the dynamic nodes in it during the animation. Unfortunately I have not been > able to figure out how to use the \jlmdynamic-api. > > Can someone please provide a minimal example? Maybe with the simple > \frac{a}{b} example (because \frac{}{} is static and there are two dynamic > nodes a,b (as in my project) and not only one). > > > Kind regards, > Christian > _______________________________________________ > jlatexmath mailing list > [hidden email] > http://lists.scilab.org/mailman/listinfo/jlatexmath_______________________________________________ jlatexmath mailing list [hidden email] http://lists.scilab.org/mailman/listinfo/jlatexmath
 It sounds interesting. I have the same problem and would like to know a solution.On Thu, Sep 6, 2012 at 4:27 PM, Dallan Hunt wrote: I would be interested to hear what is said about this too, as my project also involves dynamic input.  To be fair, I have used the 'naive' solution described, and it has worked fine.  If there's a better way I'd like to know. Dallan On Thu, Sep 6, 2012 at 3:02 AM, Christian Stussak <[hidden email]> wrote: > Hi everybody, > > in my program I have to typeset a LaTeX expression containing a dynamically > changing string resp. number. So for simplicity let's just take > $\frac{a}{b}$ and a and b are to be substituted dynamically by some numbers. > I want to produce an animation, i.e. the equation rendering has to be done > as fast as possible. As an example think of an animated enumeration of the > rational numbers ... I don't want to post my concrete code here because it's > rather complex. > > My current naive solution is to substitute a and b in the string > "\frac{a}{b}" and then create a new TexFormula and a new TexIcon out of if. > By inspecting the source code of JLaTeXMath I found the dynamic-package and > the \jlmdynamic command which sounds like the solution to my problem, i.e. > precompile the formula with some dynamic nodes in it and then refresh only > the dynamic nodes in it during the animation. Unfortunately I have not been > able to figure out how to use the \jlmdynamic-api. > > Can someone please provide a minimal example? Maybe with the simple > \frac{a}{b} example (because \frac{}{} is static and there are two dynamic > nodes a,b (as in my project) and not only one). > > > Kind regards, > Christian > _______________________________________________ > jlatexmath mailing list > [hidden email] > http://lists.scilab.org/mailman/listinfo/jlatexmath _______________________________________________ jlatexmath mailing list [hidden email] http://lists.scilab.org/mailman/listinfo/jlatexmath _______________________________________________ jlatexmath mailing list [hidden email] http://lists.scilab.org/mailman/listinfo/jlatexmath