On 27 July 2014 23:52, Andrew Chadwick <[email protected]> wrote:
> Hi all -- > > I noticed that the OpenRaster specification doesn't really say anything > about what can go in a layer's data file inside the ORA container, just > that it has to be referenced by a <layer src=""/> somewhere. The only > examples given are .png files. > > Is this enough? One of the important principles for OpenRaster is that > stuff an app doesn't understand is preserved verbatim. That kind of > pass-through preservation may cause clashes in the long run, but for layer > data members it's pretty clear-cut: random SVGs, Oggs, videos, or Blender > files may not have rendering support, or even any sort of pixel-sized 2-D > rendering, but they should at least be passed through when saved. > As far as I know, all ORA supporting apps import ora by mapping it to the applications internal document model, and then on export constructs a new ora archive. Effectively discarding everything the app does not know how to handle. This would need to change to properly interoperate with unknown data. And yes, I think this should be part of the spec, even if majority currently fails... -- Jon Nordby - www.jonnor.com
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