Errors with EPUB rendering on Kobo Aura H2O running koreader-stable-v2015.11

[algernonramone]

Errors with EPUB rendering on Kobo Aura H2O running koreader-stable-v2015.11

Can't render the EPUB version of the Father Brown Omnibus posted on this forum here: https://www.mobileread.com/forums/showthread.php?t=74602

Gives a lot of question marks between characters, suspect possible unicode issue? Not certain.

Correctly renders the MOBI version of the same book (found here: https://www.mobileread.com/forums/showthread.php?t=13637)

Any advice would be appreciated. I prefer EPUBs, don't want to switch to MOBI unless I have to.

Thanks!

Ed

[Ken Maltby]

I did not encounter that problem.
I tried it with embedded style on and off, it looked to use my selected font, in both cases. So you might try using a different font.

Luck;
Ken

[church mouse]

I remember seeing this kind of problem discussed on GitHub in the past - see here:

https://github.com/koreader/koreader/issues/1706

[djalma]

Originally Posted by church mouse

I remember seeing this kind of problem discussed on GitHub in the past - see here:

https://github.com/koreader/koreader/issues/1706

Yes, It seems mostly fixed in nightly version but still render errors are present, for example:
Calibre:

Koreader (v2015.11-214-g58e7103)(2016-03-06):

Epub code:

<p>Siete días después estaba de vuelta en mi guarnición y todo el mundo me miraba como si fuese un fantasma, y no era porque llevara la barba sin afeitar, sino porque se había corrido la voz de que a Wedel y a mí nos habían matado en Kalisz. Se sabía lo ocurrido, el lugar, la hora y demás circunstancias con tal exactitud, que el rumor se había extendido ya por toda Silesia. Hasta mi madre había recibido ya las condolencias.</p>

  <p>Sólo faltaba mi esquela en los periódicos.</p>

  <p class="asterisco ilustra svg20"><img alt="" src="../Images/Cruz_Patada.svg" /></p>

  <p>Por entonces ocurrió también un divertido suceso. A un oficial veterinario le encargaron ir con diez ulanos a requisar los caballos de una granja. La granja estaba situada a unos tres kilómetros. Regresó de su misión muy alterado y él mismo informó de lo siguiente:</p>

style.css:

/* imágenes simples */	/* para láminas verticales (página completa), usar el estilo fijo «cubierta» */
.ilustra { margin:1em 0; text-align:center; text-indent:0; display:block; }
	.ilustra img { max-height:100%; max-width:100%; }


/* ----- ESTILOS PERSONALES ----- */
.capitular { font-size:300%; font-weight:bold; float:left; margin:-0.1em 0.125em -0.2em 0em;text-indent:0em; line-height:1em; height:1em; }
.asterisco { text-align:center; text-indent:0; padding-top:1.2em; padding-bottom:1.2em; }
.subtitulo { text-indent:0; margin-top:-1.2em; margin-bottom:2.5em; }
.svg20 img { max-width: 1.2em; width: 100%;}
.normal {  font-style:normal; }

Cruz_Patada.svg :


(This epub is well rendered in "nickel").

Regards.

[Ken Maltby]

KOReader's issues with SVG and SVG wrapper, don't appear to be part of the OP's problem. There is some current effort, at Github, to improve image display within the cr3 engine side of KOReader. At the moment, weather a problem appears in a particular book or not, hasn't been laid to any consistent cause.

Luck;
Ken

[NiLuJe]

Are we even supposed to support SVG at all?

[DaleDe]

Originally Posted by NiLuJe

Are we even supposed to support SVG at all?

SVG is a required feature of ePub.

Dale

[NiLuJe]

@DaleDe: Good to know .

That said, I still have my doubts wether CRe actually honors that . I have no recollection of it pulling any kind of SVG rendering lib, and that would seem kind of non-trivial to NIH...

[djalma]

Originally Posted by NiLuJe

Are we even supposed to support SVG at all?

Originally Posted by NiLuJe

@DaleDe: Good to know .

That said, I still have my doubts wether CRe actually honors that .

Same problem with coolreader by vlasovsoft.

Originally Posted by NiLuJe

I have no recollection of it pulling any kind of SVG rendering lib, and that would seem kind of non-trivial to NIH...

Even so, exists an svg viewer example in the cr3 sources:
https://github.com/koreader/crengine...les/svg_viewer
Maybe, it could inspire someone...

Regards.