[Community] ZCatalog spatial index
sgillies at frii.com
Sun Jul 29 21:52:23 EEST 2007
Eric Bréhault wrote:
> Did anybody already tried to implement a spatial index to handle spatial
> operators directly in the ZCatalog ?
> I want to try to do it, but if anybody has some feedback and/or idea about
> it, it would help.
Shaun Walbridge and I worked on
at the 2006 Plone Conference sprint. The tests should be
self-explanatory. The one obstacle for us at the time was that there
wasn't a way to persist the index, which means that it's not really
ready for production.
Now, there is an alternative index
which *can* be persisted (to a file on disk), and would be a better
foundation for a Zope spatial index. It's been on my to-do list for a
while. My Pleiades project has ~1000 features now, but will need a
spatial index before it can grow much larger.
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