[plt-scheme] slideshow, math formulas

On Sat, Mar 1, 2008 at 10:47 PM, Geoffrey S. Knauth <geoff at knauth.org> wrote:
>
> Paulo,
>
> It turns out I needed the following symlinks for PLaneT package mrtex2im to
> work on my Mac:
>

So I guess now everything is fine?
Since the paths are parameters I guess you can tweak them without
changing sourcecode. You just need to set them after requiring the
module, I guess.
Good luck.

Cheers,

Paulo Matso

>
> /usr/bin/convert -> /usr/texbin/convert
> /usr/bin/dvips -> /usr/texbin/dvips
> /usr/bin/latex -> /usr/texbin/latex
>
> /usr/bin/gs -> /opt/local/bin/gs
> The first three were needed by mrtex2im.ss (or the module needed to be
> tweaked, or PATH modified):
>
> The last need (gs) was revealed when I temporarily removed the
> parameterization of current-output-port and current-error-port to
> (open-output-nowhere) in run-convert and saw that:
>
>
> (make-object bitmap%
>           (run-convert transparency anti-aliasing bgcolor resolution
>                        (run-latex/dvips tmp-file debug-latex-on?))
>           'png
>           #f)
>
> was twice trying to call gs but wasn't finding it.
>
> Geoffrey
>
> On Sat, Mar 1, 2008 at 12:29 PM, I wrote to Paulo:
>
>
>  This gives me "bitmap failed":
>
>  (module hello-world (lib "slideshow.ss" "slideshow")
>
>    (require (planet "mrtex2im.ss" ("pjmatos" "mrtex2im.plt" 1 3)))
>
>    (slide/title
>     "How to Say Hello in Mathematics"
>     (bitmap (tex2im #<<$
>  \int_0^\lambda \frac{x^2}{\lambda-2} \textrm{d}x
>  $
>                     ))))
>
>  This also gives me a little "bitmap failed" image:
>
>  (require (lib "utils.ss" "texpict"))
>  (bitmap (tex2im #<<$
>  \int_0^\lambda \frac{x^2}{\lambda-2} \textrm{d}x
>  $
>                     ))



-- 
Paulo Jorge Matos - pocm at soton.ac.uk
http://www.personal.soton.ac.uk/pocm
PhD Student @ ECS
University of Southampton, UK
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