[tex4ht] TeX4ht warning --- Cannot determine size of graphic in svg graphics. Does tex4ht support bounding box on svg?

[Nasser M. Abbasi]

Sorry, please ignore my last email.

I needed to use ebb -x on the PDF file, not the SVG.

I am all set now.

sorry about that, never used this command before.

--Nasser

On 5/19/2015 12:21 PM, Nasser M. Abbasi wrote:
> On 5/19/2015 10:35 AM, Michal Hoftich wrote:
>
>>
>> you need to create a .xbb file for each svg file. you can create it
>> with `ebb -x` command (I am not sure whether it is installed by
>> default with TeX Live.
>>
>
> fyi, I get this:
>
> ------------------------------------
>> extractbb -x flow.svg
>     extractbb:warning: Can't handle file type for file named flow.svg
>
>> ebb -x flow.svg
>     ebb:warning: Can't handle file type for file named flow.svg
>
>> ebb --version
>
> This is extractbb Version 20140317
> A bounding box extraction utility from PDF, PNG, and JPEG.
> --------------------------------------
>
> Using TL 2014. May be need to update something.
>
> Thanks for the information below
>
>>
>>>
>>> Here is the tex file:
>>> -------------------------------
>>> \documentclass[12pt]{article}
>>> \usepackage{graphicx}
>>> \begin{document}
>>> \includegraphics[width=0.2\paperwidth]{2}
>>> \end{document}
>>> --------------------------------
>>>
>>> There is a file called 2.pdf and 2.svg in the folder.
>>> pdflatex works fine and the image shows small as expected. But
>>> the HTML shows the image as SVG, but not resized due to the
>>> above warning.
>>>
>>
>> in this example the image should have width of 1/5 textwidth, original
>> image size isn't used at all, so the warning shouldn't matter.
>>
>>> Here is the .cfg I am using (from your last email)
>>>
>>> ------------------------------------
>>> \Preamble{ext=htm,p-width,pic-align} %work well with something, I forgot
>>> what
>>> \DeclareGraphicsExtensions{.svg,.png,.jpg}
>>> \Configure{Picture}{.svg}
>>> \makeatletter
>>> \Configure{graphics*}
>>> {svg}
>>> {
>>>     {\Configure{Needs}{File: \Gin at base.svg}\Needs{}}
>>>     \Picture[\csname a:GraphicsAlt\endcsname]{\csname
>>> Gin at base\endcsname.svg width="\expandafter\the\csname
>>> Gin at req@width\endcsname"  height="\expandafter\the\csname
>>> Gin at req@height\endcsname"
>>> }
>>> }
>>> \begin{document}
>>> \EndPreamble
>>> ----------------------------------------
>>>
>>
>> this config file doesn't use image size information from the .xbb
>> file. as I said, it doesn't work with explicit setting of image size.
>> (error `Package graphics Error: Division by 0.` is produced)
>>
>>
>>> Here is the command I used
>>>
>>> make4ht foo.tex "nma,htm,charset=utf-8" " -cunihtf -utf8"
>>
>> you can also use
>>
>>       make4ht -uc nma.cfg foo.tex htm
>>
>> instead
>>
>>
>>>
>>> also tried
>>>
>>> htlatex foo.tex "nma,htm"
>>>
>>> Both give the same warning and the image do not resize.
>>
>> of course :)
>>
>> add
>>
>>        \DeclareGraphicsRule{.svg}{svg}{.xbb}{}
>>
>> to the .cfg file under \DeclareGraphicsExtensions if you want to use
>> original image dimensions. but if you use that with explicit width
>> setting, it will fail with `Division by 0` error, as I said earlier.
>> It is maybe graphicx bug, because the same error is produced with
>> plain LaTeX.
>>
>>>
>>> btw, when one writes \makeatletter  does one need to also add \makeatother
>>> at the end? I noticed you did not have \makeatother in the above.
>>>
>>
>> I forgot it :)
>>
>>> Also, since I got your attention, I am confused about one thing:
>>> When using your build system make4ht, does it still use/read the
>>> tex4ht.env or does it not need it?  Please let me know if I can
>>> try anything. I'd like to use your method above, since it saves
>>> me having to make .eps for each image.
>>
>> it does use it, but you can modify image generation and conversion in
>> a build file
>>
>> Regards,
>> Michal
>>
>>
>>
>>>
>>
>
> regards,
> --Nasser
>
>