Hi, I have downloaded the latest shapefiles from US Census Bureau TIGER Shapefiles containaing the ZipCode Tabulation Area (2010) information. I am reading the shapefile to retrieve the zip code for a given point having latitude/longitude. I open the shapefile to get the data source, get the zipcode layer from that and the set a spatial filter on it. But currently, I am getting very slow performance when doing this. It takes on an average 200 milliseconds to find a zip code for a given point. I had downloaded the ZCTA 2010 shapefile a few months ago and I was getting the latency of around 1 to 2 milliseconds on an average. I recently downloaded the same ZCTA 2010 shapefile from US Census Bureau web site and now I am getting latency of 200 milliseconds. The code that reads the shapefiles is the same.
Has anyone else observed similar behavior ? What could be the cause of such a high latency ? Thanks, Kedar -- View this message in context: http://osgeo-org.1560.n6.nabble.com/Slow-performance-observed-while-querying-the-shapefile-tp4999813.html Sent from the GDAL - Dev mailing list archive at Nabble.com. _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
