Hello Sarah,
Thank you for guiding me through the first steps in developing an implementation plan for the project titled “Improve Postcode Handling”. I have gone through http://wiki.openstreetmap.org/wiki/Elements to better understand the OSM data model. I now have a fair idea of what nodes, ways, relations, tags are and how they are related to each other. I also went through http://wiki.openstreetmap.org/wiki/Key:addr and http://wiki.openstreetmap.org/wiki/Tag:boundary%3Dpostal_code and understand how postcodes are either mapped to an address or to an area within a geo fence. I also built and ran a few addr:postcode and boundary:postal_code queries using the Overpass Turbo Wizard ( https://overpass-turbo.eu/ )for examples of the data output on the map. I went through https://en.wikipedia.org/wiki/Postal_code to get a general idea about postcode systems. The characters used in postal codes are the Arabic numerals "0" to "9", letters of the ISO basic Latin alphabet, spaces and hyphens. India has a 6 character numeric postcode, but many countries have alphanumeric postcodes with varying number of characters. I have experience in installing Wordpress, WooCommerce and other Ecommerce softwares on AWS. Hence, I plan to install Nominatim on AWS Server - free tier (https://aws.amazon.com/free/ ). However, from what I’ve read, it looks like 1 GB of RAM provided under free tier may not be sufficient. I would appreciate if you could suggest alternative low cost/free servers. In addition to https://github.com/twain47/Nominatim/blob/master/docs/install-on-ubuntu-16.md and https://github.com/twain47/Nominatim/blob/master/docs/Import_and_update.md , I will also refer to the following installation guides: https://www.snip2code.com/Snippet/248983/Instructions-for-installing-an-OpenStree , https://andrewwhitby.com/2014/12/18/nominatim-on-ec2/ , http://wiki.openstreetmap.org/wiki/Nominatim/Installation . Thank you. Regards, Hriday. On Fri, Feb 17, 2017 at 2:23 AM, Sarah Hoffmann <[email protected]> wrote: > Hi Hriday, > > thank you for your interest in the OSM GSoC. > > There are a couple of things you can do to prepare for the postcode > project. > > First of all you should familiarize yourself a bit with the OSM data > model in general (nodes, ways, relations, tags) and then find out > how postcode tagging works in particular. There are essetially two > ways how postcodes are mapped: as part of an address for a particular > house (see http://wiki.openstreetmap.org/wiki/Key:addr) or as an > area (see http://wiki.openstreetmap.org/wiki/Tag:boundary%3Dpostal_code). > You can use Overpass (or Overpass Turbo) to find examples of the data. > > Nominatim actually uses complete OSM data dumps and processes them > into a search database. So improving the search means improving the > import process. So, next you should try and set up your own instance > of Nominatim using the current development version from > https://github.com/twain47/Nominatim (installation documentation > can be found in the doc/ directory) and a data extract from > http://download.geofabrik.de/. I recommend something from Europe > as there is already a fair coverage with postcodes. > > Finally, it will also be helpful if you do a little bit of research > about postcodes in general to find out what different systems are > in use and where. > > Hope that helps to get you started. > > Kind regards > > Sarah > > On Thu, Feb 16, 2017 at 07:13:31PM +0530, Hriday N Sanghvi wrote: > > Hello Lonvia, > > > > > > I’m a student of Computer Science Engineering at SRM University, India ( > > http://www.srmuniv.ac.in/). I am interested in submitting my proposal > for > > GSOC 2017 for either one of the Open Street Map projects 1. Improve > > Postcode handling or 2. OpenAddresses for Nominatim. > > > > > > I have extensive experience working with PHP and MySQL databases on > various > > web based projects. I have undergone a PostgreSQL course on > > https://www.lynda.com/PHP-5-tutorials/PostgreSQL-9-with- > PHP-Essential-Training/73930-2.html > > and http://www.tutorialspoint.com/postgresql/ and I’m quite comfortable > > working with Github. I have some experience with Google Maps API while > > working on a location based Click-and-Collect grocery shopping app. I > plan > > to continue with coding for OSM even after the GSOC project and also plan > > to base my six months project in the eighth and final semester of my > course > > on OSM. > > > > I understand that the list of accepted mentoring organizations will be > > published on February 27 and potential student participants will discuss > > application ideas with mentoring organizations from February 27 to March > 20 > > and that student application period is open from March 20 to April 3, > but I > > wish to start early. > > > > > > I have downloaded JOSM to edit my local area on the map, but I found ID > > editor to be an easier option. > > > > With regard to extraction of postcode data and exporting data to the > > Nominatim database related to the project titled “Improve Postcode > > Handling”, I have looked at API v 0.6 ( > > http://wiki.openstreetmap.org/wiki/API_v0.6 ), including the endpoints > for > > capabilities (http://api06.dev.openstreetmap.org/api/capabilities ), > > permissions (http://api06.dev.openstreetmap.org/api/0.6/permissions ), > > change sets (http://api06.dev.openstreetmap.org/api/0.6/changesets ), > nodes > > (http://api06.dev.openstreetmap.org/api/0.6/node/12345 ), and trace > > metadata (http://api06.dev.openstreetmap.org/api/0.6/gpx/12345/details > ) in > > which I was asked for Authentication. > > > > I also went through the Overpass API ( > > http://wiki.openstreetmap.org/wiki/Overpass_API ), Overpass Turbo > remote ( > > http://overpass-turbo.eu/ ) and Overpass Turbo Query form ( > > http://www.overpass-api.de/query_form.html ). > > > > Though I was able to download limited data using the “Download Map data > > from OSM server” tool in JOSM, I am not sure about the endpoint and query > > to get post codes using API v 0.6 or Overpass API. I would really > > appreciate any help on this. <http://overpass-api.de/api/> > > > > I’m confident of producing productive work during the GSOC period. > Before I > > start working on the proposal for GSOC 2017, I would appreciate any > > guidance you could provide. > > > > > > Thank you. > > > > > > Regards, > > > > Hriday N Sanghvi > > > _______________________________________________ > > dev mailing list > > [email protected] > > https://lists.openstreetmap.org/listinfo/dev > >
_______________________________________________ dev mailing list [email protected] https://lists.openstreetmap.org/listinfo/dev
