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
