FilterEngine and ColorizedVelocityFilter is my answer on question about how to
assign a color to bodies velocity when doing postprocess simulation results. In
order to get a worked filters save simulation results (for example, with
SQLiteRecorder),
after which load its with SimulationPlayer and add to engines list the desired
filters (now it may be ColorizedVelocityFilter or ColorizedLayerFilter or you
own). For example from python console do:
o=Omega()
colorized_velocity =
DeusExMachina('ColorizedVelocityFilter',{'autoScale':False,'minValue':0,'maxValue':1})
o.engines = o.engines +[colorized_velocity]
After this, click on refresh button in the SimulationPlayer filters tab and
check "Allow filtration". After this filters will be recognized among another
engines to a filter list and will be setup
FilterEngine::isFiltrationAllowed=true. Now after loading each frame will be
doing: for each filter in the filter list do filter->action() if
filter->isActivated(), how it is occurs for engines during simulation. To
activate/deactivate certain filter setup isFilterActivated key, for example
colorized_velocity['isFilterActivated']=False
ColorizedVelocityFilter calculate mean velocity of a body on last time interval
and assign a color with this body from the color scale.
ColorizedLayerEngine assign a desired color with bodies, who lies in certain
layer.
--
Best regards, Sergei D.
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