[OSM-dev] Can we do Optimisation of data to be imported in database?
Hello Everyone, As we can import the OSM data file into the database using osm2pgsql, I want to know that can we optimise that data before importing. Means If I need only the Information of National Highways, what is the need of storing all the data in the database. So can I optimise the data before importing to the database. Please let know how can I do this? Thank You. -- Parveen Arora www.parveenarora.in E-Mail: o...@parveenarora.in ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] Can we do Optimisation of data to be imported in database?
Hi, On 06/23/2011 01:19 PM, Parveen Arora wrote: As we can import the OSM data file into the database using osm2pgsql, I want to know that can we optimise that data before importing. Means If I need only the Information of National Highways, what is the need of storing all the data in the database. So can I optimise the data before importing to the database. Sure, you can run it through Osmosis with the --tag-filter option to filter out only what you are interested in. You can also modify osm2pgsql's default.style file to import only some tags (but it will not allow you to say I want only highway=motorway and highway=trunk). This only works if you are not planning to do incremental updates however. Bye Frederik ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] Can we do Optimisation of data to be imported in database?
Hi, On 23.06.2011, at 13:19, Parveen Arora wrote: Hello Everyone, As we can import the OSM data file into the database using osm2pgsql, I want to know that can we optimise that data before importing. Means If I need only the Information of National Highways, what is the need of storing all the data in the database. So can I optimise the data before importing to the database. you should have a look at imposm[0]. You can define custom mappings that only import the data you need (highways in your case). It can also create tables with generalized/simplified geometries. [0] http://imposm.org Regards, Oliver -- Oliver Tonnhofer| Omniscale GmbH Co KG| http://omniscale.de http://mapproxy.org | https://bitbucket.org/olt | @oltonn ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
