Hi Peter, thanks a lot, yes, I'm currently working on it and I'll give feedback as soon as I've accomlished something useful.
Axel Am 01.11.2010 15:52, schrieb Peter Neubauer: > Axel, > I was pointed to > http://svn.osgeo.org/geotools/trunk/modules/unsupported/geojson/src/test/java/org/geotools/geojson/FeatureJSONTest.java > which has an example of a FeatureCollection reading. Does that help > you? > > /peter > > On Wed, Oct 27, 2010 at 8:59 PM, Axel Morgner<[email protected]> 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 >> [email protected] >> https://lists.neo4j.org/mailman/listinfo/user >> > _______________________________________________ > Neo4j mailing list > [email protected] > https://lists.neo4j.org/mailman/listinfo/user -- Axel Morgner Creative Solutions - Software Engineering GUI& UX Design - Project Management c/o inxire GmbH Hanauer Landstr. 293a 60314 Frankfurt Germany Phone +49 151 40522060 E-mail [email protected] Web http://www.morgner.de _______________________________________________ Neo4j mailing list [email protected] https://lists.neo4j.org/mailman/listinfo/user
