Some questions: @Grant: Can you clarify what you mean with "the Sinusoidal projection is broken"?
Would it be possible to use a LGPL library like the Java Topology Suite (JTS: http://www.vividsolutions.com/jts/JTSHome.htm)? Neo4j is using JTS for creating a spatial index (code is here: https://github.com/neo4j/neo4j-spatial)... (I've just seen that JTS has some index creation classes, but I'm not at all familiar with them) Christopher On Mon, Nov 8, 2010 at 1:10 AM, Grant Ingersoll <[email protected]> wrote: > > On Nov 6, 2010, at 5:23 PM, Christopher Schmidt wrote: > > > Hi Ryan, thx for your answer. > > > > You mean there is room for improvement and volunteers? > > We've been looking at replacing it with the Military Grid system. The > primary issue with the current is that the Sinusoidal projection is broken > which then breaks almost all the tests. I worked on it for a while trying > to straighten it out, but gave up and now think it is easier to implement > clean. I definitely would like to see a tier/grid implementation. > > > > > > On Friday, November 5, 2010, Ryan McKinley <[email protected]> wrote: > >> Hi Christopher - > >> > >> I do not believe there is any active work on this. From what I > >> understand, the Tier implementation works OK within some constraints, > >> but we could not get it to pass more robust testing that the other > >> methods were using. > >> > >> However, LatLonType and GeoHashField are well tested and work well -- > >> the Tier type may have better performance when your index is really > >> large, but no active developers understand it and no-one has stepped > >> up to figure it out. > >> > >> ryan > >> > >> > >> On Wed, Nov 3, 2010 at 3:16 PM, Christopher Schmidt > >> <[email protected]> wrote: > >>> Hi all, > >>> I saw a mail thread "Rethinking Cartesian Tiers implementation" (here). > >>> Is there any work in progress regarding this? If yes, is the current > >>> implementation deprecated or do you plan some enhancements (other > >>> projections or spatial indexes) ? > >>> I am asking because I want to use Lucene's spatial indexing in a > production > >>> system... > >>> > >>> -- > >>> Christopher > >>> twitter: @fakod > >>> blog: http://blog.fakod.eu > >>> > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: [email protected] > >> For additional commands, e-mail: [email protected] > >> > >> > > > > -- > > Christopher > > twitter: @fakod > > blog: http://blog.fakod.eu > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [email protected] > > For additional commands, e-mail: [email protected] > > > > -------------------------- > Grant Ingersoll > http://www.lucidimagination.com/ > > Search the Lucene ecosystem docs using Solr/Lucene: > http://www.lucidimagination.com/search > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > -- Christopher twitter: @fakod blog: http://blog.fakod.eu
