Re: [O] Inline Images Export Bug

[Scott Randby]

On 08/26/2015 06:40 PM, Pip Cet wrote:
> Okay, I just checked (sorry, had to regenerate the files and that took
> some time), and with the current version of Firefox the code I pasted is
> unnecessary.
>
> The problem I had with previous Firefox versions is that those decided
> on a scale for displaying the SVG that differed from its preferred
> resolution, but only if an object tag was used for inclusion; img tags
> would use the preferred resolution and everything was fine.
>
> The reason for the pt-to-px arithmetic is that graphviz outputs (or used
> to) SVGs with a preferred size specified in pt only, not in px. I'm not
> sure, but I think HTML pt and SVG pt don't necessarily agree.
>
> Org mode is generating this tag:
>
> <object type="image/svg+xml" data="org/op-prec.svg" >
> Sorry, your browser does not support SVG.</object>
>
> Which looks okay to me. It's browser support that's the issue.
>
> > The problems with the second bit of exported code is that it doesn'tscale the 
> > image to fit the block with 50% width (only a small part of
> the image is visible)
>
> Is it possible you're using an old browser? I'm on Iceweasel (Firefox)
> 38.1.0. (The bug was there a year or two ago, so by my standards it's a
> recent fix that we shouldn't rely on yet.)

I'm using Firefox 40.0. I get the same behavior on Google Chrome 44.0 too.

> > and you when you right click on the image, youcan't view it, save it or 
> > anything.
>
> Again, I can, using the "This Frame" popup menu.

Okay, that works.

> But clearly that menu name is misleading and confusing in this case! And
> I think that is reason enough to stick with the img tag for now: Firefox
> users can't save the image unless they telepathically know that "frame"
> means "image". "This Object" might be okay, I guess.
>
> My suggestion is to use img for images; that also appears to be the
> consensus on Stack Overflow. Let's find a good syntax for including
> interactive objects in Org mode, though.

This sounds reasonable.

> On Wed, Aug 26, 2015 at 9:56 PM, Rasmus <address@hidden
> <mailto:address@hidden>> wrote:
>
>     Hi,
>
>     Pip Cet <address@hidden <mailto:address@hidden>> writes:
>
>     >     let found = false;
>     >     for (let el of svgdoc.getElementsByTagName("svg")) {
>     >         let width = el.getAttribute("width");
>     >         let height = el.getAttribute("height");
>     >
>     >         let width_pt = width.match(/^([0-9]*)pt$/)[1];
>     >         let height_pt = height.match(/^([0-9]*)pt$/)[1];
>     >
>     >         let width_px = 5/4 * width_pt;
>     >         let height_px = 5/4 * height_pt;
>     >
>     >         object.setAttribute("width", width_px + "px");
>     >         object.setAttribute("height", height_px + "px");
>     >         found = true;
>
>     So are you saying that Org is changing the size from px to pt?  Can you
>     try to explain the problem you observe in words?
>
>     Thanks,
>     Rasmus
>
>     --
>     The second rule of Fight Club is: You do not talk about Fight Club