Covers are an issue between the 505 and 900

JSWolf · 12-30-2009, 03:35 PM

I had a chance today to have a look at the 900. I did take an SD card with some ePub eBooks to give it a try. One of the ePub eBooks I tried (converted to ePUb with Calibre) had part of the cover cut off on the left and right side. Seems the code used for the cover on a 6 inch screen is not always going to be appropriate for the 900 depend in the original size of the graphic.

Is it possible to sort out Calibre so an ePub will display the graphics without any of it going off screen no matter which Reader is used?

kovidgoyal · 12-30-2009, 04:00 PM

The way calibre specifies covers is that they take up 100% of the height. On screens with an aspect ratio different to that of the 6 inch readers this will maen horizontal cut offs. The size of the cover image doesn't matter.

JSWolf · 12-30-2009, 05:48 PM

Quote:

Originally Posted by kovidgoyal

The way calibre specifies covers is that they take up 100% of the height. On screens with an aspect ratio different to that of the 6 inch readers this will mean horizontal cut offs. The size of the cover image doesn't matter.

Is there any way to fix this so the same ePub will work on both a 6" screen and a 7.1" screen?

kovidgoyal · 12-30-2009, 06:19 PM

Probably to use SVG, but then it wont work on all other readers.

JSWolf · 12-30-2009, 07:05 PM

Quote:

Originally Posted by kovidgoyal

Probably to use SVG, but then it wont work on all other readers.

But it will work on all ADE enabled readers yes?

netseeker · 12-30-2009, 07:23 PM

Quote:

Originally Posted by kovidgoyal

Probably to use SVG, but then it wont work on all other readers.

Perhaps it would work to use SVG for covers and another core media type as fallback. Though, i never tried it and don't really expect that it would work because SVG itself is already considered a core media type.

kovidgoyal · 12-30-2009, 07:31 PM

I don't think fallback would work. I don't know of any epub reader taht supports fallbacks other than ADE.

Jellby · 12-31-2009, 05:23 AM

Quote:

Originally Posted by kovidgoyal

Probably to use SVG, but then it wont work on all other readers.

But it should, as SVG is a required part of the ePUB standard.

HarryT · 12-31-2009, 05:38 AM

Quote:

Originally Posted by Jellby

But it should, as SVG is a required part of the ePUB standard.

But are all ePub devices conformant to the standard?

Jellby · 12-31-2009, 06:42 AM

Quote:

Originally Posted by HarryT

But are all ePub devices conformant to the standard?

Of course not, sadly. But there's a difference between some optional feature or extension (which you can't assume it will work), and some required feature that some implementations fail to support (which can be called a "bug" in that implementation).

kovidgoyal · 12-31-2009, 11:24 AM

Quote:

Originally Posted by Jellby

But it should, as SVG is a required part of the ePUB standard.

Yeah well until more readers support it (basically until WebKit supports it) IMO it's better to have a cover that gets a little cutoff than a cover that wont display at all.

12-30-2009, 03:35 PM	#1
JSWolf Resident Curmudgeon Posts: 73,998 Karma: 128903378 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	Covers are an issue between the 505 and 900 I had a chance today to have a look at the 900. I did take an SD card with some ePub eBooks to give it a try. One of the ePub eBooks I tried (converted to ePUb with Calibre) had part of the cover cut off on the left and right side. Seems the code used for the cover on a 6 inch screen is not always going to be appropriate for the 900 depend in the original size of the graphic. Is it possible to sort out Calibre so an ePub will display the graphics without any of it going off screen no matter which Reader is used?

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12-30-2009, 04:00 PM	#2
kovidgoyal creator of calibre Posts: 43,860 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	The way calibre specifies covers is that they take up 100% of the height. On screens with an aspect ratio different to that of the 6 inch readers this will maen horizontal cut offs. The size of the cover image doesn't matter.

12-30-2009, 06:19 PM	#4
kovidgoyal creator of calibre Posts: 43,860 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Probably to use SVG, but then it wont work on all other readers.

12-30-2009, 07:31 PM	#7
kovidgoyal creator of calibre Posts: 43,860 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	I don't think fallback would work. I don't know of any epub reader taht supports fallbacks other than ADE.

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