Re: Displaying images for html output

[Christopher Dimech]

For html there were four problems

1.

The file does not exist (relative to index.html) and using '.png' the
error shows '..png'

@image{../Ideogr/Ch03b--Chmed/igc03--01--Sicl--CircAmRg,8cm,8cm,AltText,.png}

2.

The file exists (relative to index.html) and using '.png' does not give an
error.  But the image is not displayed in html output.

@image{../../Ideogr/Ch03b--Chmed/igc03--01--Sicl--CircAmRg,8cm,8cm,AltText,.png}

3.

The file exists (relative to index.html) and using 'png' does not give an
error.  The image is displayed correctly in html output.

@image{../../Ideogr/Ch03b--Chmed/igc03--01--Sicl--CircAmRg,8cm,8cm,AltText,png}

4.

Image Width and Height have no effect in html output.  Had passed an image that
was displayed very large compared to the text.  Changed Width and Height in
the call to @image, but the size of the image was not reduced compared to the 
text.


---------------------
Christopher Dimech
General Administrator - Naiad Informatics - GNU Project (Geocomputation)
- Geophysical Simulation
- Geological Subsurface Mapping
- Disaster Preparedness and Mitigation
- Natural Resource Exploration and Production
- Free Software Advocacy


> Sent: Wednesday, November 18, 2020 at 10:47 PM
> From: "Gavin Smith" <gavinsmith0123@gmail.com>
> To: "Christopher Dimech" <dimech@gmx.com>
> Cc: "help-texinfo gnu" <help-texinfo@gnu.org>
> Subject: Re: Displaying images for html output
>
> On Wed, Nov 18, 2020 at 10:15:40PM +0100, Christopher Dimech wrote:
> > > > Thanks for sending the input and the output.  This problem only occurs
> > > > when the image file is not found.  I've tried to fix it in commit
> > > > e2d579377.
> > >
> > > Does it really! I have to check that out, give me a moment.
> >
> > No.  The file exists and I use the correct path relative to
> > index.html. So the path is correct as far as html is concerned.
>
> As you said in another email the file name should be relative to
> the Texinfo file for consistency with other output formats.
>
> I doubt that relative names beginning "../" were much considered
> when @image was implemented (or even file names with directory parts
> at all).
>
> I haven't thought of a clear answer for this issue yet.  I think that
> for split output, the image files need to be copied into the output
> directory and the file names should be given under that, not beginning
> "../".  Alternatively, you could create a symbolic link to a directory
> containing the image files under the output directory.
>
> It's odd that the include path should be searched for image files.
> This makes sense for TeX but not for other formats, as there is no
> search path for image files for HTML or Info.  It would only make sense
> if texi2any was going to copy the image files to the output location.
>