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From Jeremias Maerki <...@jeremias-maerki.ch>
Subject Re: Renderer interface for Viewports
Date Mon, 19 Dec 2005 08:50:00 GMT
I see absolutely no problem with creating that special class that holds
all the information about the setup for the new coordinate system
established by a viewport. You could argue that the CTM is calculated
too early in the layout managers. So far all renderers were pretty much
ok with only working with the CTM. If that doesn't apply to all
renderers we have to adjust for that.

On 18.12.2005 17:42:01 Andreas L Delmelle wrote:
> On Dec 18, 2005, at 14:52, Manuel Mall wrote:
> Hi Manuel,
> > <snip />
> > I think this needs improvement but what is the best strategy here?
> I just had an --admittedly very vague-- idea about this, don't know  
> if it is feasible. Jeremias, correct me if I'm wrong...
> What about creating an object type, especially meant for use with the  
> render-type AFP, that stores the needed info? Something like a  
> mapping from 'viewport with id'->'reference-orientation' (maybe only  
> for orientation other than zero). That way, you wouldn't need to  
> reverse engineer the values from the CTM. In fact, the AFP renderer  
> could bypass the CTM completely and get the relevant data from  
> somewhere else without having to perform recalculation.
> Not really sure about the how, when or where, though... As I said,  
> very vague.
> Just a thought. Hope it can be of use.
> Cheers,
> Andreas

Jeremias Maerki

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