Hi Christopher,

I'm just curious, when you speak about h2-spatial, do you mean :

http://geosysin.iict.ch/irstv-trac/wiki/H2spatial/Download
or
http://code.google.com/p/h2spatial/

My second question is about spatial index : JTS-STRtree is very 
efficient and when I write a plugin doing spatial things, I generally 
build such an index before I start processing. However, documentation 
says that once build, it cannot be changed. That's why I wondered it it 
was a good candidate for H2 spatial index.
If needed, here are my favorite about spatial indexing (I only tested 
the first one, and it's been several years ago) :
http://research.att.com/~marioh/spatialindex/ (a reference, seems to be 
used in several other projects)
http://sourceforge.net/projects/rtree
http://jsi.sourceforge.net/
http://www.khelekore.org/prtree/
Also there is an interesting discussion on geoserver site : 
http://geoserver.org/display/GEOS/H2+Spatial+Index

Good luck,
 
Michaël

Christopher a écrit :
> This week I started laying out a spatial index built upon JTS's R-tree within 
> H2.
>
> The biggest problems I had was that H2-spatial is basically a fork of H2 and 
> the only source tree I can find of H2-spatial doesn't have a full build 
> script. This led to many manhours being spent having fun with compilers and 
> IDEs rather than coding.
>
> Next week I hope to have my own build of H2+spatial+R-tree working, or at 
> least in the debugging phase.
>
> --Christopher
>
>
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