Hi,

This is just to get some idea about Renderer,

We have a service implemented which keeps on checking/unchecking layers
programatically in the LayersView.

Now in this operation we were facing flickering issue during rendering
(Raster Layers). 

After a through debugging and testing we reached to a solution according to
which if we change the "wait_period" variable value from 400 ms to 1000 ms
in
net.refractions.udig.project.internal.render.impl.RenderExecutorComposite.incrementalUpdate(),
the flicker does not reappear, but as we haven't yet explored the Renderer
to a great extent, we are not really very sure about the pros/cons of this
change? 

Will you please give us some idea about whether there will be some
consequences which may occur due this change??

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