On Wed, 20 Nov 2013 09:15:01 +0900 Carsten Haitzler (The Rasterman) <ras...@rasterman.com> wrote:
> On Tue, 19 Nov 2013 15:20:01 +0000 Thomas Strobel <ts...@cam.ac.uk> > said: > > > Hi all, > > > > I was wondering which constraint solver is being used in EFL for > > placing evas objects relatively to each other? Especially for edje, > > can anyone point me to a research paper or similar which describes > > the algorithm being used? > > nope. can't. it's just math man. math. there is no "constraint > solver" at all. it's just calculate your coords - if you are relative > TO something else... your coords depend on its coords - so go > calculate what you depend on first... and repeat (recurse). it's just > inside edje. simple basic logic+math Or to put it another way, there are no constraints, it's not that sort of system. Things are placed relative to other things, at a fixed fraction of the size of the thing it is relative to. On the other hand, there is also ephysics, which can be used to make graphics objects react to other objects in a 2D plane using the bullet physics library. You can ask the bullet library authors about their algorithms. -- A big old stinking pile of genius that no one wants coz there are too many silver coated monkeys in the world.
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