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Fri Mar 23 20:47:42 CET 2012

## Constraint programming, layout & choreography

The trick is to be able to non-causally describe convergence. It's
easier to do this "backwards in time". Same goes for spacial
parameters.
Example: have two animiation meet in one point. It's simpler to
directly specify that they meet at time t=t' than to figure out when
to start them such that this property is met implicitly.
Example: how to center an asymmetric animation based on its final
configuration.
I need a way to convert a constraint-based description to a linear
sequence. This most likely requires a 2-step approach: 1) solve all
unknowns and 2) perform a coordinate transformation or lookup.
So how to do this? I'm probably going to be helped with just a local
constraint propagation solver (equations as bi-directional functions).

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