Quote:
Originally Posted by omnimodis78
It makes perfect sense to me that different codes will produce different outcomes, I get that - but is the simple answer to my original question then that with Kobo e-readers this is not possible? That with default behaviour, maps, pictures, illustrations all will display as tiny images on screen, generally covering about 20% of screen real-estate?
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The default behaviour is to display the images at their intrinsic size. That is a 300x400 pixel image will display using 300x400 pixels -- about 50% of the screen width on a Touch/Mini, 33% on a Glo/Aura and 25% on an Aura HD.
From what I read into the epub 2.01 specification, displaying an image at it's intrinsic size if no modifying code exists is the expected behaviour -- any other behaviour is not following the standard. Adobe tries to follow the standard especially for the RMSDK which is expected to be used on lower resolution mobile devices. Calibre is expected to be used with higher resolution displays and does not follow the standard which is why I use ADE and not Calibre when I want to get a idea of what a work in progress will look like on an ereader.
From the Pigs, Gourds and Wikis page:
An image has an intrinsic size, that is, its actual size in pixels. If you don't apply width or height information to the image, either in the HTML or the CSS, the image will appear at its original size. CSS allows you to set the height and the width of an image explicitly in pixels, or as a percentage of a parent element. This means that if you set the width of an image to 50%, the image should be displayed at 50% of the width of the element in which the image is contained, not 50% of the image's original width.
This behaviour is why using width/height percentages is recommended for images so they will use approximately the same amount of page space regardless of device resolution. For images intended to be displayed full screen, using an SVG wrapper is the best choice for a good looking scalable image.
Regards,
David