Re: Rounded corners

[Don Blaheta <blahedo blahedo org>]

Quoth Hans Breuer:
> Am 30.05.2008 09:51, Don Blaheta schrieb:
> > Yes!  I didn't realise that JOIN_MITER and so forth were already-available
> > options, but having a single parameter for all objects-with-corners that
> > said whether to render it as pointy or round would be pretty much what I
> > was hoping for before I got carried away with the separate radius stuff.
>
> But this still does not solve the problem of small radius not being 
> rendered well with DiaGdkRenderer. And it is not consistent with what other 
> renderers currently do. I'm using the cairo renderer as my reference here 
> because cairos main goal is consistent high quality output for different 
> output devices. See: http://cairographics.org/

I'd seen a lot of reference to Cairo in the code and ChangeLog, and
gathered that it was the direction Dia was headed (just for export
formats, or also for realtime display?)---good to read their homepage
for their goals and perspectives.

But I don't understand your second sentence here: it looks like Cairo
has exactly this way of breaking down line joins (into mitre, bevel,
round).  In fact, now that I'm looking for it, I see that most objects
are already using set_linejoin in a lot of places; is it just not
working?  I guess I just need to explore the code some more.

-- 
-=-Don Blaheta-=-=-blahedo blahedo org-=-=-=-<http://www.blahedo.org/>-=-
"The algorithm to do that is extremely nasty.  You might want to mug
someone with it."
                --M. Devine, Computer Science 340