Axel, do you have a small sample of that data? It might be very useful to write a small GeoJSON importer and corresponding test for importing stuff into Neo4j Spatial, much like the Shapefile importer. I am thinking of using something like https://svn.osgeo.org/geotools/trunk/modules/unsupported/geojson/src/test/java/org/geotools/geojson/GeometryJSONTest.java if you have some sample data?
Cheers, /peter neubauer VP Product Management, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. On Wed, Oct 27, 2010 at 8:59 PM, Axel Morgner <a...@morgner.de> wrote: > Hi, > > a part of my current project is about rendering an abstract world map > (countries filled with a color gradient). I'm using Polypmaps on a 10 MB > geoJSON file with high-res vector data, containing 246 features defining > all the world's countries as multi-polygons (about 1.5 million points > overall). Now even when the map is zoomed in, the hole file is processed > instead of a small set of countries. Polymaps renders SVG path elements > for each request, and rendering the whole map is by far too slow (4-5 s > even on a fast machine). > > My idea is to store all features in Neo4j and determine only a subset of > individual countries to process for a given map section > programmatically. There's already a neo4j instance containing all CMS > data, so this approach seems natural to me. > > With Polymaps I can easily get the coordinates (lat,lon) of the box > corners. Now I only have to get all points within that box and get their > corresponding country to be loaded and rendered. > > Can Neo4j spatial support me here? F.e. is there a geoJSON importer? And > I saw different search classes in org.neo4j.gis.spatial.query, could > that help? Or is there a better approach at all? > > Thank you in advance > > Axel > > > > > _______________________________________________ > Neo4j mailing list > User@lists.neo4j.org > https://lists.neo4j.org/mailman/listinfo/user > _______________________________________________ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
