[Tilesathome] New preprocessor - area center

[Sebastian Spaeth]

Jiri Klement wrote:
> What do you think about the GVT tree idea from previous e-mail? Would
> forcing people to use Java worthy if the idea works?
> 
> Is is alright for now to make area center preprocessor as osmosis
> plugin optional? t at h will try to run it, but fail silently if java is
> not available. Also can I include osmosis files directly in t at h
> distribution to avoid OS  dependant classpath hassle?

Right now we can easily switch between osma (XSLT)/orp and 
inkscape/batik because the output of these alternatives is identical.

If there is an optional plugin that creates output that looks identical 
to the rest, then I am more than happy with it, however if it changes 
the output in signifcant ways, it's much more difficult.

Imagine 2 neghboring z12 tiles with an overlapping caption. If they use 
different algorithms to place their labels the result looks.. 
interesting (this is a problem with the current lowzoom captions already).

I have no strong feelings about these issues, though, and refer to 
deelkar as client lead developers to make calls like this.