Documentation image source

[Joel Sherrill]

Dot can produce svg

dot -Tsvg graph.dot -o file

PlantUML appears to use -tsvg

Does that help?

On Thu, Oct 8, 2020, 1:39 AM Chris Johns <chrisj at rtems.org> wrote:

> On 8/10/20 5:30 pm, Sebastian Huber wrote:
> > On 08/10/2020 08:18, Chris Johns wrote:
> >> On 8/10/20 4:31 pm, Sebastian Huber wrote:
> >>> On 08/10/2020 03:01, Chris Johns wrote:
> >>>
> >>>> I see generated .png and .pdf for some images which I am questioning
> we need.
> >>>> The user document images I have contributed are only .png files so I
> am not
> >>>> sure
> >>>> why a PDF is needed for some.
> >>> Images in a vector format is very important for a high quality PDF.
> Using PNG
> >>> for the PDFs is not really good.
> >> Yes is does help but I am not convinced by the "very important" bit. I
> looked at
> >> the user manual executable pictures in the PDF at 400% on a quality
> monitor and
> >> they hold up nicely. All you get to see is the anti-aliasing effects
> which is
> >> understandable.
> >>
> >> HTML and PDF need to be at the same quality level and I have shown this
> can be
> >> achieved even with .png files. PDF is not something we should treat as
> special.
> >> At the moment I cannot read the dot HTML images.
> >>
> >> The PDF quality depends on the contents of the PDF fragment. It may not
> always
> >> be vectors so I am not sure we can assume this. I have seen PDF get
> abused with
> >> horrible results. It looks like .dot is vector which is fine.
> >>
> >> Manual generation is something I would like to avoid and especially if
> more than
> >> one output file type is being generated. The poor HTML quality of the
> dot
> >> generated .png files highlights this. Can they please be improved?
> > It would be nice to use a vector format for HTML also. Maybe we should
> use SVG
> > instead of PNG.
>
> That would be a nice solution but I have no idea how to do that. It would
> have
> to work on all browsers on all devices. That is an area where the less I
> know
> the happier I am. Is simpler better in this case, that is a suitably size
> image?
>
> Chris
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